General
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Target
8c23e7c480280c24c6b34c9c9bafc05d_JaffaCakes118
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Size
396KB
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Sample
241103-sqdxhszndk
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MD5
8c23e7c480280c24c6b34c9c9bafc05d
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SHA1
de75bf5f2115fb3399d2c94966218f91dd9c2362
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SHA256
d898a79292edb0059156844e559cf65ab68819786b1d344dec42993851751740
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SHA512
04a631fbd1a3aca23956e316716375a77328471025f8391971aa33315ad8245419231f3b9b95229b1999c24c240ae97436ba9fcc3216d1a5b63ff75de9e9edf5
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SSDEEP
6144:4T3WR0F1lDPR+bJnm/jtowhxZWVrfQwBcTMMG26uw6fyQ7Q:4T3MA+bJmy4ZKfQRMh6
Static task
static1
Behavioral task
behavioral1
Sample
8c23e7c480280c24c6b34c9c9bafc05d_JaffaCakes118.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
8c23e7c480280c24c6b34c9c9bafc05d_JaffaCakes118.exe
Resource
win10v2004-20241007-en
Malware Config
Extracted
C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\Recovery+sqosa.txt
teslacrypt
http://tt54rfdjhb34rfbnknaerg.milerteddy.com/CD15E914F9465C64
http://kkd47eh4hdjshb5t.angortra.at/CD15E914F9465C64
http://ytrest84y5i456hghadefdsd.pontogrot.com/CD15E914F9465C64
http://xlowfznrg4wf7dli.ONION/CD15E914F9465C64
Extracted
C:\Program Files\7-Zip\Lang\Recovery+abjfu.txt
teslacrypt
http://tt54rfdjhb34rfbnknaerg.milerteddy.com/BB72C570B0A63F5C
http://kkd47eh4hdjshb5t.angortra.at/BB72C570B0A63F5C
http://ytrest84y5i456hghadefdsd.pontogrot.com/BB72C570B0A63F5C
http://xlowfznrg4wf7dli.ONION/BB72C570B0A63F5C
Targets
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Target
8c23e7c480280c24c6b34c9c9bafc05d_JaffaCakes118
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Size
396KB
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MD5
8c23e7c480280c24c6b34c9c9bafc05d
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SHA1
de75bf5f2115fb3399d2c94966218f91dd9c2362
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SHA256
d898a79292edb0059156844e559cf65ab68819786b1d344dec42993851751740
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SHA512
04a631fbd1a3aca23956e316716375a77328471025f8391971aa33315ad8245419231f3b9b95229b1999c24c240ae97436ba9fcc3216d1a5b63ff75de9e9edf5
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SSDEEP
6144:4T3WR0F1lDPR+bJnm/jtowhxZWVrfQwBcTMMG26uw6fyQ7Q:4T3MA+bJmy4ZKfQRMh6
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TeslaCrypt, AlphaCrypt
Ransomware based on CryptoLocker. Shut down by the developers in 2016.
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Teslacrypt family
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Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
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Renames multiple (416) 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