General
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Target
JaffaCakes118_999637725d06c4657eabffc5618ff29b
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Size
484KB
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Sample
250331-peg81ssky5
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MD5
999637725d06c4657eabffc5618ff29b
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SHA1
535bb93da45bd4228d5dcf3e9cd79a08e43baa3e
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SHA256
142e1f0c627422eae07efbb5d5597b6d41c7bd63c27d0af92f8848904d852159
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SHA512
7cf6497c68654439872cc151149a6b01c9e9fcad8c2a31ec34823a18fab2842da27ce89321eb737c66db7bf573689fab625eec7394d36839c3fcffa6c0b5ce3e
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SSDEEP
12288:fgkDxdkL+6JNgKVcRa+fpHyWs3OBH4pU8tww:bxsKXa+hHyWseBg7Cw
Static task
static1
Behavioral task
behavioral1
Sample
JaffaCakes118_999637725d06c4657eabffc5618ff29b.exe
Resource
win10v2004-20250314-en
Malware Config
Targets
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Target
JaffaCakes118_999637725d06c4657eabffc5618ff29b
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Size
484KB
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MD5
999637725d06c4657eabffc5618ff29b
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SHA1
535bb93da45bd4228d5dcf3e9cd79a08e43baa3e
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SHA256
142e1f0c627422eae07efbb5d5597b6d41c7bd63c27d0af92f8848904d852159
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SHA512
7cf6497c68654439872cc151149a6b01c9e9fcad8c2a31ec34823a18fab2842da27ce89321eb737c66db7bf573689fab625eec7394d36839c3fcffa6c0b5ce3e
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SSDEEP
12288:fgkDxdkL+6JNgKVcRa+fpHyWs3OBH4pU8tww:bxsKXa+hHyWseBg7Cw
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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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Blocklisted process makes network request
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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 v15
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