General
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Target
JaffaCakes118_a5f08f7a36315c8e684dcdd2b43073d1
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Size
552KB
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Sample
250409-vkktzsxvct
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MD5
a5f08f7a36315c8e684dcdd2b43073d1
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SHA1
bfbb0d557e4a0c64d8db95b58f8e0fa5d29cc6d2
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SHA256
83d542e1c32b412f997127a95b3aa12344d846aa83e865d9a67f315495747d41
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SHA512
3a5369218783ae4af1141c1f6b61a9a00ff2de3137207089e15cf85dc300511d86c5a8681d946a38f97d5464a001032846db099fd5a9696b8e597e45d0d5fc2a
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SSDEEP
12288:eigkDxdkL+6JNgKVcRa+fpHyWs3OBH4pU11:dxsKXa+hHyWseBg+1
Static task
static1
Behavioral task
behavioral1
Sample
JaffaCakes118_a5f08f7a36315c8e684dcdd2b43073d1.exe
Resource
win10v2004-20250314-en
Malware Config
Targets
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Target
JaffaCakes118_a5f08f7a36315c8e684dcdd2b43073d1
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Size
552KB
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MD5
a5f08f7a36315c8e684dcdd2b43073d1
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SHA1
bfbb0d557e4a0c64d8db95b58f8e0fa5d29cc6d2
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SHA256
83d542e1c32b412f997127a95b3aa12344d846aa83e865d9a67f315495747d41
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SHA512
3a5369218783ae4af1141c1f6b61a9a00ff2de3137207089e15cf85dc300511d86c5a8681d946a38f97d5464a001032846db099fd5a9696b8e597e45d0d5fc2a
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SSDEEP
12288:eigkDxdkL+6JNgKVcRa+fpHyWs3OBH4pU11:dxsKXa+hHyWseBg+1
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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