General
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Target
c40b893661bbb99187869568375d63ef_JaffaCakes118
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Size
424KB
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Sample
241204-ybjr4stjdn
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MD5
c40b893661bbb99187869568375d63ef
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SHA1
ca533304be2c72b5876d756634b2b3207793260d
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SHA256
7097913d473590c8fc507d8b8b6eaee8cd9db77888ebb14fc193eafeac039d7a
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SHA512
bea6153b2a3411a4d2de5da6616dfcbc9a233c1297e0d7b0a7c1c443aa03f04739c9e563027723e16cec8be14f89738167073e17c34b93a4c3baeef368c97333
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SSDEEP
6144:MsPAYJDo2magV+8GUEmGM41DwAHQmjdN1AUL0yogLpWPoXbftChXW3AxfulDGgB:Hp808fEmLqDwAJjpA+E+blCJxfS6
Static task
static1
Behavioral task
behavioral1
Sample
c40b893661bbb99187869568375d63ef_JaffaCakes118.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
c40b893661bbb99187869568375d63ef_JaffaCakes118.exe
Resource
win10v2004-20241007-en
Malware Config
Extracted
C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\_RECoVERY_+cbmch.txt
teslacrypt
http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/A399DC35096C24D
http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/A399DC35096C24D
http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/A399DC35096C24D
http://xlowfznrg4wf7dli.ONION/A399DC35096C24D
Extracted
C:\Program Files\7-Zip\Lang\_RECoVERY_+mhuqn.txt
teslacrypt
http://pts764gt354fder34fsqw45gdfsavadfgsfg.kraskula.com/5D71537E38FC884
http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/5D71537E38FC884
http://uiredn4njfsa4234bafb32ygjdawfvs.frascuft.com/5D71537E38FC884
http://xlowfznrg4wf7dli.ONION/5D71537E38FC884
Targets
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Target
c40b893661bbb99187869568375d63ef_JaffaCakes118
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Size
424KB
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MD5
c40b893661bbb99187869568375d63ef
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SHA1
ca533304be2c72b5876d756634b2b3207793260d
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SHA256
7097913d473590c8fc507d8b8b6eaee8cd9db77888ebb14fc193eafeac039d7a
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SHA512
bea6153b2a3411a4d2de5da6616dfcbc9a233c1297e0d7b0a7c1c443aa03f04739c9e563027723e16cec8be14f89738167073e17c34b93a4c3baeef368c97333
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SSDEEP
6144:MsPAYJDo2magV+8GUEmGM41DwAHQmjdN1AUL0yogLpWPoXbftChXW3AxfulDGgB:Hp808fEmLqDwAJjpA+E+blCJxfS6
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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 (417) 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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MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1