General
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Target
JaffaCakes118_d5b6da842a50c57aeb8d8e550dd6091f
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Size
568KB
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Sample
250424-klcvnavsdw
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MD5
d5b6da842a50c57aeb8d8e550dd6091f
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SHA1
29c7ffbec53d2b3c87459170a377909c7f964bdb
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SHA256
4a35242eadc3539545837906ee8bcbec6fb4bd1ce5f07c8bc8478cf415d53bb3
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SHA512
ac6a88d6effaf2d9046879a9df3358d264de024c739c7087c11044629bb245cc65d8708c25c6445f0931aae57c3157d2af94bb31cf9201bdeacfb581d178230a
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SSDEEP
12288:X8KkqnHkapLvSrhlUy1WY6X+pd167QhEXns:XOqnHZpLartWzE6EhD
Static task
static1
Behavioral task
behavioral1
Sample
JaffaCakes118_d5b6da842a50c57aeb8d8e550dd6091f.exe
Resource
win10v2004-20250410-en
Behavioral task
behavioral2
Sample
JaffaCakes118_d5b6da842a50c57aeb8d8e550dd6091f.exe
Resource
win11-20250410-en
Malware Config
Targets
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Target
JaffaCakes118_d5b6da842a50c57aeb8d8e550dd6091f
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Size
568KB
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MD5
d5b6da842a50c57aeb8d8e550dd6091f
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SHA1
29c7ffbec53d2b3c87459170a377909c7f964bdb
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SHA256
4a35242eadc3539545837906ee8bcbec6fb4bd1ce5f07c8bc8478cf415d53bb3
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SHA512
ac6a88d6effaf2d9046879a9df3358d264de024c739c7087c11044629bb245cc65d8708c25c6445f0931aae57c3157d2af94bb31cf9201bdeacfb581d178230a
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SSDEEP
12288:X8KkqnHkapLvSrhlUy1WY6X+pd167QhEXns:XOqnHZpLartWzE6EhD
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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