Epic Manchego – atypical maldoc delivery brings flurry of infostealers
Common Information
Type Value
UUID d3f7c4c4-ca30-4699-83ce-86d08910b3c6
Fingerprint b4910b9b8bfe87e2
Analysis status DONE
Considered CTI value 2
Text language
Published Sept. 1, 2020, 1:33 p.m.
Added to db Sept. 11, 2022, 12:38 p.m.
Last updated Nov. 18, 2024, 10:33 a.m.
Headline Epic Manchego – atypical maldoc delivery brings flurry of infostealers
Title Epic Manchego – atypical maldoc delivery brings flurry of infostealers
Detected Hints/Tags/Attributes 104/4/32
Attributes
Details Type #Events CTI Value
Details Domain 53
oledump.py
Details File 29
vbaproject.bin
Details File 1
vba.xlsm
Details File 2
vba.txt
Details File 49
oledump.py
Details File 1
list.xlsm
Details File 4
drawing1.xml
Details File 226
rockyou.txt
Details File 1
crefgyu.exe
Details File 1
_2_09_2020.xlsx
Details File 1
_2608.xlsm
Details File 9
workbook.xml
Details File 17
core.xml
Details File 16
app.xml
Details md5 1
8857fae198acd87f7581c7ef7227c34d
Details md5 1
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Details md5 1
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Details sha256 1
8a863b5f154e1ddba695453fdd0f5b83d9d555bae6cf377963c9009c9fa6c9be
Details sha256 1
c40fa887be0159016f3afd43a3bdec6d11078e19974b60028b93def1c2f95726
Details sha256 1
45cab564386a568a4569d66f6781c6d0b06a9561ae4ac362f0e76a8abfede7bb
Details MITRE ATT&CK Techniques 311
T1566.001
Details MITRE ATT&CK Techniques 366
T1204.002
Details MITRE ATT&CK Techniques 505
T1140
Details MITRE ATT&CK Techniques 183
T1036.005
Details MITRE ATT&CK Techniques 34
T1027.001
Details MITRE ATT&CK Techniques 160
T1027.002
Details MITRE ATT&CK Techniques 26
T1027.003
Details MITRE ATT&CK Techniques 59
T1055.001
Details MITRE ATT&CK Techniques 40
T1055.002
Details MITRE ATT&CK Techniques 97
T1497.001
Details Url 1
http://blog.nviso.eu/2020/09/01/epic-manchego-atypical-maldoc-delivery-brings-flurry-of-infostealers
Details Yara rule 1
rule xlsm_without_metadata_and_with_date {
	meta:
		description = "Identifies .xlsm files created with EPPlus"
		author = "NVISO (Didier Stevens)"
		date = "2020-07-12"
		reference = "http://blog.nviso.eu/2020/09/01/epic-manchego-atypical-maldoc-delivery-brings-flurry-of-infostealers"
		tlp = "White"
	strings:
		$opc = "[Content_Types].xml"
		$ooxml = "xl/workbook.xml"
		$vba = "xl/vbaProject.bin"
		$meta1 = "docProps/core.xml"
		$meta2 = "docProps/app.xml"
		$timestamp = { 50 4B 03 04 ?? ?? ?? ?? ?? ?? 00 00 21 00 }
	condition:
		uint32be(0) == 0x504B0304 and ($opc and $ooxml and $vba) and not (any of ($meta*) and $timestamp)
}