General
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Target
a.zip
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Size
40.0MB
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Sample
240930-ams8xsxfkl
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MD5
ff178b67e372981598390898880ba9b0
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SHA1
790568c86a890853177f9bb40978149cec8ce6e2
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SHA256
ceea0457f178b5e19d8ef1aa7c7f7b5ce5e3fcc7f48b0f1ac5da39ba290819dc
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SHA512
e9203bad3b5251b99b8f249ad6973116b2d37dbc6f80666707b56f30d5ba6d1ea49ecd08c1e4b84f4376770840e195915e82920b2c0f58aeea765c48d1716284
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SSDEEP
786432:WXNBctmUJUcGRdzVV6YnSFdWDxkjvyVzRBUPtFADd0QX6pytIgmSHvifm2Fpc96i:WXNWtKc8zVVUsxwvyiPtFI4pytIVSKNu
Behavioral task
behavioral1
Sample
W2.pdf
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
W2.pdf
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
a.exe
Resource
win7-20240903-en
Behavioral task
behavioral4
Sample
a.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral5
Sample
msimg32.dll
Resource
win7-20240903-en
Behavioral task
behavioral6
Sample
msimg32.dll
Resource
win10v2004-20240802-en
Malware Config
Extracted
vidar
11
da1105e7cee8ade4acd1a4dc0b47dbbe
https://steamcommunity.com/profiles/76561199780418869
https://t.me/ae5ed
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user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:130.0) Gecko/20100101 Firefox/130.0
Targets
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Target
W2
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Size
36.1MB
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MD5
28ed3744e67812936a005adfb9f029a4
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SHA1
3a725d65fdc9d24638c2a673f0fdaf74f26d3b47
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SHA256
a8c302a0e636b865a1452db668d9d8a5154f3634923aa06e23469d81d7e6c410
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SHA512
972c561f58018162dd1560de16bca63666a91879648b609f7acc754ec6a25ab62ac2161c553a33aacb7141211ca7f2b76d11e7b5a63471bf8c40516c54245b48
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SSDEEP
786432:94rbnl4Qbn+40bny4Rbn04ubng4dbnB4sbnn4rbnh4nbnH47:94/l4G+4ay4d048g4pB4Cn4/h4bH47
Score3/10 -
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Target
a.exe
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Size
6.1MB
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MD5
4864a55cff27f686023456a22371e790
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SHA1
6ed30c0371fe167d38411bfa6d720fcdcacc4f4c
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SHA256
08c7fb6067acc8ac207d28ab616c9ea5bc0d394956455d6a3eecb73f8010f7a2
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SHA512
4bd3a16435cca6ce7a7aa829eb967619a8b7c02598474e634442cffc55935870d54d844a04496bf9c7e8c29c40fae59ac6eb39c8550c091d06a28211491d0bfb
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SSDEEP
98304:VZQIM+/nv/CDoAkYwpAa5ge1zZ/jtdZwUkQ:bJCKlA2VKUz
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Detect Vidar Stealer
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Downloads MZ/PE file
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Loads dropped DLL
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Unsecured Credentials: Credentials In Files
Steal credentials from unsecured files.
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Accesses cryptocurrency files/wallets, possible credential harvesting
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Adds Run key to start application
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Target
msimg32.dll
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Size
3.9MB
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MD5
5ffd78650614bc118ea029b086dffb3e
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SHA1
d552cfbc15052f609e23a9613866d5462a4318a3
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SHA256
c8bdff3366a5e82f090d54dee45a507c53caf619ab5285efccb0d5c69041b381
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SHA512
451f97fceb1127a37f064d86584ce0a81d47fcac3c4dd64eca3cf60a50437b29e1a6a7de5513f3dff72a96bfcf2a5f548751470b80c7ad34ada07fd0f43f864d
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SSDEEP
49152:Ptw8A/gVIBl8X3t6evYC/2NESehSE3TQaC+1RDYBylTTt4eri:xwA/SNVwSE30ajvI6TpE
Score3/10 -
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Modify Registry
3Subvert Trust Controls
1Install Root Certificate
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
4Credentials In Files
4