Analysis
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max time kernel
150s -
max time network
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platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
03/10/2024, 15:23
Static task
static1
Behavioral task
behavioral1
Sample
0f5c5f387363e8ea2da8a416265495f8_JaffaCakes118.dll
Resource
win7-20240903-en
General
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Target
0f5c5f387363e8ea2da8a416265495f8_JaffaCakes118.dll
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Size
992KB
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MD5
0f5c5f387363e8ea2da8a416265495f8
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SHA1
210be10e8149a1b206a2e0f9bd530420f4fc5114
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SHA256
c0d95efec5a7554273d6f3e98ad3b7bf6573374034849757894408206e80ad0f
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SHA512
0f253c881b7b67578c648704806587ae1e2a3d71bdb43907d68bef3233521c1819cdb79aaafae9b749e7ef7b6afa898afe6b95a866100bdb379c2b1bb537314b
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SSDEEP
24576:AatFGOH8KzJauobwEK10bVWyBc8TznlwWhLE32GRIVRXnRmqeJthax8:LvGOH8K1fosEHbVI8TznGWJ8I7BmqeJ3
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exe,C:\\Users\\Admin\\AppData\\Local\\syomulfx\\bfgyfloo.exe" svchost.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" svchost.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" skbthnqudmkiddep.exe -
Drops startup file 2 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bfgyfloo.exe svchost.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bfgyfloo.exe svchost.exe -
Executes dropped EXE 3 IoCs
pid Process 2532 6xDn2t3 2776 skbthnqudmkiddep.exe 2124 skbthnqudmkiddep.exe -
Loads dropped DLL 6 IoCs
pid Process 940 rundll32.exe 940 rundll32.exe 2532 6xDn2t3 2532 6xDn2t3 2352 cmd.exe 2352 cmd.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows\CurrentVersion\Run\BfgYfloo = "C:\\Users\\Admin\\AppData\\Local\\syomulfx\\bfgyfloo.exe" svchost.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" skbthnqudmkiddep.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 6 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 6xDn2t3 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language skbthnqudmkiddep.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe 2816 svchost.exe -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 468 Process not Found -
Suspicious use of AdjustPrivilegeToken 8 IoCs
description pid Process Token: SeSecurityPrivilege 2532 6xDn2t3 Token: SeDebugPrivilege 2532 6xDn2t3 Token: SeSecurityPrivilege 2688 svchost.exe Token: SeSecurityPrivilege 2816 svchost.exe Token: SeDebugPrivilege 2816 svchost.exe Token: SeSecurityPrivilege 2776 skbthnqudmkiddep.exe Token: SeSecurityPrivilege 2124 skbthnqudmkiddep.exe Token: SeLoadDriverPrivilege 2124 skbthnqudmkiddep.exe -
Suspicious use of WriteProcessMemory 43 IoCs
description pid Process procid_target PID 1168 wrote to memory of 940 1168 rundll32.exe 31 PID 1168 wrote to memory of 940 1168 rundll32.exe 31 PID 1168 wrote to memory of 940 1168 rundll32.exe 31 PID 1168 wrote to memory of 940 1168 rundll32.exe 31 PID 1168 wrote to memory of 940 1168 rundll32.exe 31 PID 1168 wrote to memory of 940 1168 rundll32.exe 31 PID 1168 wrote to memory of 940 1168 rundll32.exe 31 PID 940 wrote to memory of 2532 940 rundll32.exe 32 PID 940 wrote to memory of 2532 940 rundll32.exe 32 PID 940 wrote to memory of 2532 940 rundll32.exe 32 PID 940 wrote to memory of 2532 940 rundll32.exe 32 PID 2532 wrote to memory of 2688 2532 6xDn2t3 33 PID 2532 wrote to memory of 2688 2532 6xDn2t3 33 PID 2532 wrote to memory of 2688 2532 6xDn2t3 33 PID 2532 wrote to memory of 2688 2532 6xDn2t3 33 PID 2532 wrote to memory of 2688 2532 6xDn2t3 33 PID 2532 wrote to memory of 2688 2532 6xDn2t3 33 PID 2532 wrote to memory of 2688 2532 6xDn2t3 33 PID 2532 wrote to memory of 2688 2532 6xDn2t3 33 PID 2532 wrote to memory of 2688 2532 6xDn2t3 33 PID 2532 wrote to memory of 2688 2532 6xDn2t3 33 PID 2532 wrote to memory of 2816 2532 6xDn2t3 34 PID 2532 wrote to memory of 2816 2532 6xDn2t3 34 PID 2532 wrote to memory of 2816 2532 6xDn2t3 34 PID 2532 wrote to memory of 2816 2532 6xDn2t3 34 PID 2532 wrote to memory of 2816 2532 6xDn2t3 34 PID 2532 wrote to memory of 2816 2532 6xDn2t3 34 PID 2532 wrote to memory of 2816 2532 6xDn2t3 34 PID 2532 wrote to memory of 2816 2532 6xDn2t3 34 PID 2532 wrote to memory of 2816 2532 6xDn2t3 34 PID 2532 wrote to memory of 2816 2532 6xDn2t3 34 PID 2532 wrote to memory of 2776 2532 6xDn2t3 35 PID 2532 wrote to memory of 2776 2532 6xDn2t3 35 PID 2532 wrote to memory of 2776 2532 6xDn2t3 35 PID 2532 wrote to memory of 2776 2532 6xDn2t3 35 PID 2776 wrote to memory of 2352 2776 skbthnqudmkiddep.exe 36 PID 2776 wrote to memory of 2352 2776 skbthnqudmkiddep.exe 36 PID 2776 wrote to memory of 2352 2776 skbthnqudmkiddep.exe 36 PID 2776 wrote to memory of 2352 2776 skbthnqudmkiddep.exe 36 PID 2352 wrote to memory of 2124 2352 cmd.exe 38 PID 2352 wrote to memory of 2124 2352 cmd.exe 38 PID 2352 wrote to memory of 2124 2352 cmd.exe 38 PID 2352 wrote to memory of 2124 2352 cmd.exe 38 -
System policy modification 1 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" skbthnqudmkiddep.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\0f5c5f387363e8ea2da8a416265495f8_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1168 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\0f5c5f387363e8ea2da8a416265495f8_JaffaCakes118.dll,#12⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:940 -
C:\Users\Admin\AppData\Local\Temp\6xDn2t3"6xDn2t3"3⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2532 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe4⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2688
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C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe4⤵
- Modifies WinLogon for persistence
- UAC bypass
- Drops startup file
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2816
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C:\Users\Admin\AppData\Local\Temp\skbthnqudmkiddep.exe"C:\Users\Admin\AppData\Local\Temp\skbthnqudmkiddep.exe" elevate4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2776 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C ""C:\Users\Admin\AppData\Local\Temp\skbthnqudmkiddep.exe"" admin5⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2352 -
C:\Users\Admin\AppData\Local\Temp\skbthnqudmkiddep.exe"C:\Users\Admin\AppData\Local\Temp\skbthnqudmkiddep.exe" admin6⤵
- UAC bypass
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious use of AdjustPrivilegeToken
- System policy modification
PID:2124
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
1Disable or Modify Tools
1Modify Registry
4Replay Monitor
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Downloads
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Filesize
91KB
MD5e9639538d169c463914f6b2940eae754
SHA19d4fcf5d5cf2dcfb1ec07be9861b946f81f91647
SHA256d36631b46cdce695237f408057ca3463a2487a9a9a32887e8b5001ff50c0718d
SHA512b8b708a2ebcec4897ce27c97caf79105f0500937f0ec716f72aefa675968479645c0c5ddf8aa73ee7d12ff4ed565a53436902c7a1477c007bd2ce21a14d0fb21