Resubmissions
27-11-2024 09:18
241127-k9zz4atpgm 1027-11-2024 07:19
241127-h5x9laznhp 1026-11-2024 11:44
241126-nwbl5awlcj 1026-11-2024 11:26
241126-nj43xavqgk 1026-11-2024 11:06
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241126-m3e3fsvkcm 1026-11-2024 06:07
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241126-gsj1rsvlbr 10General
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Target
a0340430d4b1c1f6dd4048ab98f2e4b2_JaffaCakes118
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Size
388KB
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Sample
241126-gvaj4svlhl
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MD5
a0340430d4b1c1f6dd4048ab98f2e4b2
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SHA1
a43ff275972b4ed9b7f3ece61d7d49375db635e9
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SHA256
9b1622602d4ae8196316deeb91fbdd1346a4b31453f3762be119e24c84827217
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SHA512
54ca85bee0ded2a742c767565159c0e3121d8cd1d97cebc751d067b1ea45d9fca86b6d5acad5b472eddef23d20afcc8ae3497cdd411fd9f393d80e0c90f2cd8d
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SSDEEP
12288:XhTjRwlkwFrnAEryLFcG3yBrZTRDgZ8zOhG6:p4DRw7325gPh
Static task
static1
Behavioral task
behavioral1
Sample
a0340430d4b1c1f6dd4048ab98f2e4b2_JaffaCakes118.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
a0340430d4b1c1f6dd4048ab98f2e4b2_JaffaCakes118.exe
Resource
win10v2004-20241007-en
Malware Config
Extracted
C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\Recovery+sbowq.txt
teslacrypt
http://tt54rfdjhb34rfbnknaerg.milerteddy.com/CCD5E7F08AF2C724
http://kkd47eh4hdjshb5t.angortra.at/CCD5E7F08AF2C724
http://ytrest84y5i456hghadefdsd.pontogrot.com/CCD5E7F08AF2C724
http://xlowfznrg4wf7dli.ONION/CCD5E7F08AF2C724
Extracted
C:\Program Files\7-Zip\Lang\Recovery+oybef.txt
teslacrypt
http://tt54rfdjhb34rfbnknaerg.milerteddy.com/F3D0EA3E25739691
http://kkd47eh4hdjshb5t.angortra.at/F3D0EA3E25739691
http://ytrest84y5i456hghadefdsd.pontogrot.com/F3D0EA3E25739691
http://xlowfznrg4wf7dli.ONION/F3D0EA3E25739691
Targets
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Target
a0340430d4b1c1f6dd4048ab98f2e4b2_JaffaCakes118
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Size
388KB
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MD5
a0340430d4b1c1f6dd4048ab98f2e4b2
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SHA1
a43ff275972b4ed9b7f3ece61d7d49375db635e9
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SHA256
9b1622602d4ae8196316deeb91fbdd1346a4b31453f3762be119e24c84827217
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SHA512
54ca85bee0ded2a742c767565159c0e3121d8cd1d97cebc751d067b1ea45d9fca86b6d5acad5b472eddef23d20afcc8ae3497cdd411fd9f393d80e0c90f2cd8d
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SSDEEP
12288:XhTjRwlkwFrnAEryLFcG3yBrZTRDgZ8zOhG6:p4DRw7325gPh
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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 (428) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Disables Task Manager via registry modification
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Downloads MZ/PE file
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Event Triggered Execution: Image File Execution Options Injection
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A potential corporate email address has been identified in the URL: HowTo@MentionPeopleInGmail
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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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Event Triggered Execution: Component Object Model Hijacking
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
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Executes dropped EXE
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Loads dropped DLL
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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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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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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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Legitimate hosting services abused for malware hosting/C2
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Checks system information in the registry
System information is often read in order to detect sandboxing environments.
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Sets desktop wallpaper using registry
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Suspicious use of NtCreateThreadExHideFromDebugger
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Suspicious use of NtSetInformationThreadHideFromDebugger
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
2Component Object Model Hijacking
1Image File Execution Options Injection
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
2Component Object Model Hijacking
1Image File Execution Options Injection
1Defense Evasion
Indicator Removal
2File Deletion
2Modify Registry
5Subvert Trust Controls
1Install Root Certificate
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1