General
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Target
JaffaCakes118_b4a229565b18ddf6e26668fa71c1f260
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Size
556KB
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Sample
250413-pgcrbavqy8
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MD5
b4a229565b18ddf6e26668fa71c1f260
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SHA1
2307c3afc80bec3823f5774322faf82518702d04
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SHA256
2dd546c14f099e9bb4743023030628c46e25af589292816d7666c17ab7f17bd6
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SHA512
2a7f67798e04b983728cda41060a0424e9eb64d9102299bd58199e9d280d33977a737ed791d819d966973d7ccb145c549f0e3e573b377544ed1a81c9ebc324bc
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SSDEEP
12288:m6bvdl0zCB8EDItMTzwg7lMQsvNuqZBRbZEYTwdD7IjLgxX+pd167QhEXfG:/vdezCByqTtlMQsFuqzRbzI7IoE6EhcG
Static task
static1
Behavioral task
behavioral1
Sample
JaffaCakes118_b4a229565b18ddf6e26668fa71c1f260.exe
Resource
win10v2004-20250410-en
Malware Config
Targets
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Target
JaffaCakes118_b4a229565b18ddf6e26668fa71c1f260
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Size
556KB
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MD5
b4a229565b18ddf6e26668fa71c1f260
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SHA1
2307c3afc80bec3823f5774322faf82518702d04
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SHA256
2dd546c14f099e9bb4743023030628c46e25af589292816d7666c17ab7f17bd6
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SHA512
2a7f67798e04b983728cda41060a0424e9eb64d9102299bd58199e9d280d33977a737ed791d819d966973d7ccb145c549f0e3e573b377544ed1a81c9ebc324bc
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SSDEEP
12288:m6bvdl0zCB8EDItMTzwg7lMQsvNuqZBRbZEYTwdD7IjLgxX+pd167QhEXfG:/vdezCByqTtlMQsFuqzRbzI7IoE6EhcG
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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 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