General
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Target
JaffaCakes118_a6bb590cd15bbc1f6ea3f0a7ea673c93
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Size
548KB
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Sample
250409-zhn6va11dy
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MD5
a6bb590cd15bbc1f6ea3f0a7ea673c93
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SHA1
6c54fe3d46a354da4f0e7c16f10df230eed574b8
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SHA256
47b0c68c97a03bd0a32d47e9f3b220078bf78d693b1ea661a29b8f8e13f4124d
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SHA512
20bd10da58b885444164bfd4aaa991e964058c3bcb9306e71c9a20622d560e5784c6fa2f02b649c9cd6cce4426868e22ed96d8a5060b46c35c78432437299dd8
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SSDEEP
6144:aKEGlVcJboOtGY8q75yKC2qJDrNRlpwPBYgZ9fVU93eJwN6QFbSpO4XcA2n4aA8I:aKr3QboC9qLGKgZKe4HYpHvcbTC
Static task
static1
Behavioral task
behavioral1
Sample
JaffaCakes118_a6bb590cd15bbc1f6ea3f0a7ea673c93.exe
Resource
win10v2004-20250314-en
Malware Config
Targets
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Target
JaffaCakes118_a6bb590cd15bbc1f6ea3f0a7ea673c93
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Size
548KB
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MD5
a6bb590cd15bbc1f6ea3f0a7ea673c93
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SHA1
6c54fe3d46a354da4f0e7c16f10df230eed574b8
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SHA256
47b0c68c97a03bd0a32d47e9f3b220078bf78d693b1ea661a29b8f8e13f4124d
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SHA512
20bd10da58b885444164bfd4aaa991e964058c3bcb9306e71c9a20622d560e5784c6fa2f02b649c9cd6cce4426868e22ed96d8a5060b46c35c78432437299dd8
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SSDEEP
6144:aKEGlVcJboOtGY8q75yKC2qJDrNRlpwPBYgZ9fVU93eJwN6QFbSpO4XcA2n4aA8I:aKr3QboC9qLGKgZKe4HYpHvcbTC
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Modifies WinLogon for persistence
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Pykspa family
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UAC bypass
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Detect Pykspa worm
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Adds policy Run key to start application
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Disables RegEdit via registry modification
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Impair Defenses: Safe Mode Boot
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Adds Run key to start application
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Checks whether UAC is enabled
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Hijack Execution Flow: Executable Installer File Permissions Weakness
Possible Turn off User Account Control's privilege elevation for standard users.
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Drops autorun.inf file
Malware can abuse Windows Autorun to spread further via attached volumes.
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Drops file in System32 directory
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MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Hijack Execution Flow
1Executable Installer File Permissions Weakness
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Hijack Execution Flow
1Executable Installer File Permissions Weakness
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Hijack Execution Flow
1Executable Installer File Permissions Weakness
1Impair Defenses
2Disable or Modify Tools
1Safe Mode Boot
1Modify Registry
5