General
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Target
JaffaCakes118_8a01bcb09b024896cdaf5a880dd8a094
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Size
600KB
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Sample
250327-yknsesyry4
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MD5
8a01bcb09b024896cdaf5a880dd8a094
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SHA1
fa6c9c41d673cc567b909c304380b166538f964b
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SHA256
1245110ba2ca69fa0e47a45237891925276be818ea7e0bb1a1ed92f4a610b004
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SHA512
6656722e386ec828b9b135110882da1fd2a513fd2df5fda04e28a41d6aa165dc189f71e43783a679ad86b4d42bc4631a0cf0602ad5ede30bff0f8fabe6e89d9c
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SSDEEP
12288:s6onxOp8FySpE5zvIdtU+YmefaRfMMMMM2MMMMM:Qwp8DozAdO9aRfMMMMM2MMMMM
Static task
static1
Behavioral task
behavioral1
Sample
JaffaCakes118_8a01bcb09b024896cdaf5a880dd8a094.exe
Resource
win7-20250207-en
Behavioral task
behavioral2
Sample
JaffaCakes118_8a01bcb09b024896cdaf5a880dd8a094.exe
Resource
win10v2004-20250313-en
Malware Config
Targets
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Target
JaffaCakes118_8a01bcb09b024896cdaf5a880dd8a094
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Size
600KB
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MD5
8a01bcb09b024896cdaf5a880dd8a094
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SHA1
fa6c9c41d673cc567b909c304380b166538f964b
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SHA256
1245110ba2ca69fa0e47a45237891925276be818ea7e0bb1a1ed92f4a610b004
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SHA512
6656722e386ec828b9b135110882da1fd2a513fd2df5fda04e28a41d6aa165dc189f71e43783a679ad86b4d42bc4631a0cf0602ad5ede30bff0f8fabe6e89d9c
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SSDEEP
12288:s6onxOp8FySpE5zvIdtU+YmefaRfMMMMM2MMMMM:Qwp8DozAdO9aRfMMMMM2MMMMM
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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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Boot or Logon Autostart Execution: Active Setup
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
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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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Loads dropped DLL
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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
4Active Setup
1Registry 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
4Active Setup
1Registry 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
6