General
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Target
40707cdcd4220213b9ef2545043d6c99_JaffaCakes118
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Size
388KB
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Sample
241013-r4fgts1hra
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MD5
40707cdcd4220213b9ef2545043d6c99
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SHA1
7f9d3ad1125de47368644e29b5d5cd515c6497e8
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SHA256
6f7c7b4f3bd9e6ce0dc0d4dd7662e35d8a2079dfe61b2febf2645b68fe11ee3f
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SHA512
0a3cda582f1a444ad78d5f09d4e204a753c74863bcbbbdf5c6ffcafa523b195ac4c6aa7922973cf2687b673e4e346f94b6525402db7380a4e53c3f8855480088
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SSDEEP
6144:tYMk7V7PQkaYO0iNq/PimTBQNEETJYOo0DldfrvwmjcMVW5OouUI5KtrQ8POyU:tnSdO0iNEPn+TGOoYzwscMSOXUIJ
Static task
static1
Behavioral task
behavioral1
Sample
40707cdcd4220213b9ef2545043d6c99_JaffaCakes118.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
40707cdcd4220213b9ef2545043d6c99_JaffaCakes118.exe
Resource
win10v2004-20241007-en
Malware Config
Extracted
C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\Recovery+aetij.txt
teslacrypt
http://tt54rfdjhb34rfbnknaerg.milerteddy.com/6E3182D2DDCA1126
http://kkd47eh4hdjshb5t.angortra.at/6E3182D2DDCA1126
http://ytrest84y5i456hghadefdsd.pontogrot.com/6E3182D2DDCA1126
http://xlowfznrg4wf7dli.ONION/6E3182D2DDCA1126
Extracted
C:\Program Files\7-Zip\Lang\Recovery+wmegn.txt
teslacrypt
http://tt54rfdjhb34rfbnknaerg.milerteddy.com/C689C4D83559D785
http://kkd47eh4hdjshb5t.angortra.at/C689C4D83559D785
http://ytrest84y5i456hghadefdsd.pontogrot.com/C689C4D83559D785
http://xlowfznrg4wf7dli.ONION/C689C4D83559D785
Targets
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Target
40707cdcd4220213b9ef2545043d6c99_JaffaCakes118
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Size
388KB
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MD5
40707cdcd4220213b9ef2545043d6c99
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SHA1
7f9d3ad1125de47368644e29b5d5cd515c6497e8
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SHA256
6f7c7b4f3bd9e6ce0dc0d4dd7662e35d8a2079dfe61b2febf2645b68fe11ee3f
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SHA512
0a3cda582f1a444ad78d5f09d4e204a753c74863bcbbbdf5c6ffcafa523b195ac4c6aa7922973cf2687b673e4e346f94b6525402db7380a4e53c3f8855480088
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SSDEEP
6144:tYMk7V7PQkaYO0iNq/PimTBQNEETJYOo0DldfrvwmjcMVW5OouUI5KtrQ8POyU:tnSdO0iNEPn+TGOoYzwscMSOXUIJ
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TeslaCrypt, AlphaCrypt
Ransomware based on CryptoLocker. Shut down by the developers in 2016.
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Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
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Renames multiple (423) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Deletes itself
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Drops startup file
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Executes dropped EXE
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Adds Run key to start application
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Indicator Removal: File Deletion
Adversaries may delete files left behind by the actions of their intrusion activity.
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Indicator Removal
2File Deletion
2Modify Registry
4Subvert Trust Controls
1Install Root Certificate
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1