Analysis
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max time kernel
150s -
max time network
143s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system -
submitted
03/10/2024, 17:58
Static task
static1
Behavioral task
behavioral1
Sample
0ff9f737dcdaa4b48bb4a46d589c5cdd_JaffaCakes118.dll
Resource
win7-20240729-en
General
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Target
0ff9f737dcdaa4b48bb4a46d589c5cdd_JaffaCakes118.dll
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Size
560KB
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MD5
0ff9f737dcdaa4b48bb4a46d589c5cdd
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SHA1
428d16ab0db225e0430f5214fbeba6627422d4f6
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SHA256
f8b5ebfaccb0631a91978a65ea792564d5170cfc0005daa12efb8c5ad1b8ac55
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SHA512
b82dea2eba004f9f62f3085109d23b8b7d9a2463dd658e29c1b0c0874a1def6f601d7a1f392f177f4e3a7053470d973cd1406a832b8cbffcfaa432ab71a55472
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SSDEEP
6144:TZLT3A5Dp0HvFIc5vBlcQGSgS62iiiiiSySYSGS+8c8c8AAANA/AA0fMG8gPhclv:TZL7A5l0711g8on8OcWulHXWNchVv
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\\yonygxob\\huflqbxr.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" yaajsdaxqdhjcffh.exe -
Drops startup file 2 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\huflqbxr.exe svchost.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\huflqbxr.exe svchost.exe -
Executes dropped EXE 3 IoCs
pid Process 2132 6xDn2t3 2196 yaajsdaxqdhjcffh.exe 1396 yaajsdaxqdhjcffh.exe -
Loads dropped DLL 6 IoCs
pid Process 2368 rundll32.exe 2368 rundll32.exe 2132 6xDn2t3 2132 6xDn2t3 1344 cmd.exe 1344 cmd.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\HufLqbxr = "C:\\Users\\Admin\\AppData\\Local\\yonygxob\\huflqbxr.exe" svchost.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" yaajsdaxqdhjcffh.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
pid pid_target Process procid_target 2364 2368 WerFault.exe 30 -
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 svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language yaajsdaxqdhjcffh.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 6xDn2t3 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe 2872 svchost.exe -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 476 Process not Found -
Suspicious use of AdjustPrivilegeToken 8 IoCs
description pid Process Token: SeSecurityPrivilege 2132 6xDn2t3 Token: SeDebugPrivilege 2132 6xDn2t3 Token: SeSecurityPrivilege 2544 svchost.exe Token: SeSecurityPrivilege 2872 svchost.exe Token: SeDebugPrivilege 2872 svchost.exe Token: SeSecurityPrivilege 2196 yaajsdaxqdhjcffh.exe Token: SeSecurityPrivilege 1396 yaajsdaxqdhjcffh.exe Token: SeLoadDriverPrivilege 1396 yaajsdaxqdhjcffh.exe -
Suspicious use of WriteProcessMemory 47 IoCs
description pid Process procid_target PID 2252 wrote to memory of 2368 2252 rundll32.exe 30 PID 2252 wrote to memory of 2368 2252 rundll32.exe 30 PID 2252 wrote to memory of 2368 2252 rundll32.exe 30 PID 2252 wrote to memory of 2368 2252 rundll32.exe 30 PID 2252 wrote to memory of 2368 2252 rundll32.exe 30 PID 2252 wrote to memory of 2368 2252 rundll32.exe 30 PID 2252 wrote to memory of 2368 2252 rundll32.exe 30 PID 2368 wrote to memory of 2132 2368 rundll32.exe 31 PID 2368 wrote to memory of 2132 2368 rundll32.exe 31 PID 2368 wrote to memory of 2132 2368 rundll32.exe 31 PID 2368 wrote to memory of 2132 2368 rundll32.exe 31 PID 2368 wrote to memory of 2364 2368 rundll32.exe 32 PID 2368 wrote to memory of 2364 2368 rundll32.exe 32 PID 2368 wrote to memory of 2364 2368 rundll32.exe 32 PID 2368 wrote to memory of 2364 2368 rundll32.exe 32 PID 2132 wrote to memory of 2544 2132 6xDn2t3 33 PID 2132 wrote to memory of 2544 2132 6xDn2t3 33 PID 2132 wrote to memory of 2544 2132 6xDn2t3 33 PID 2132 wrote to memory of 2544 2132 6xDn2t3 33 PID 2132 wrote to memory of 2544 2132 6xDn2t3 33 PID 2132 wrote to memory of 2544 2132 6xDn2t3 33 PID 2132 wrote to memory of 2544 2132 6xDn2t3 33 PID 2132 wrote to memory of 2544 2132 6xDn2t3 33 PID 2132 wrote to memory of 2544 2132 6xDn2t3 33 PID 2132 wrote to memory of 2544 2132 6xDn2t3 33 PID 2132 wrote to memory of 2872 2132 6xDn2t3 34 PID 2132 wrote to memory of 2872 2132 6xDn2t3 34 PID 2132 wrote to memory of 2872 2132 6xDn2t3 34 PID 2132 wrote to memory of 2872 2132 6xDn2t3 34 PID 2132 wrote to memory of 2872 2132 6xDn2t3 34 PID 2132 wrote to memory of 2872 2132 6xDn2t3 34 PID 2132 wrote to memory of 2872 2132 6xDn2t3 34 PID 2132 wrote to memory of 2872 2132 6xDn2t3 34 PID 2132 wrote to memory of 2872 2132 6xDn2t3 34 PID 2132 wrote to memory of 2872 2132 6xDn2t3 34 PID 2132 wrote to memory of 2196 2132 6xDn2t3 35 PID 2132 wrote to memory of 2196 2132 6xDn2t3 35 PID 2132 wrote to memory of 2196 2132 6xDn2t3 35 PID 2132 wrote to memory of 2196 2132 6xDn2t3 35 PID 2196 wrote to memory of 1344 2196 yaajsdaxqdhjcffh.exe 36 PID 2196 wrote to memory of 1344 2196 yaajsdaxqdhjcffh.exe 36 PID 2196 wrote to memory of 1344 2196 yaajsdaxqdhjcffh.exe 36 PID 2196 wrote to memory of 1344 2196 yaajsdaxqdhjcffh.exe 36 PID 1344 wrote to memory of 1396 1344 cmd.exe 38 PID 1344 wrote to memory of 1396 1344 cmd.exe 38 PID 1344 wrote to memory of 1396 1344 cmd.exe 38 PID 1344 wrote to memory of 1396 1344 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" yaajsdaxqdhjcffh.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\0ff9f737dcdaa4b48bb4a46d589c5cdd_JaffaCakes118.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2252 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\0ff9f737dcdaa4b48bb4a46d589c5cdd_JaffaCakes118.dll,#12⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2368 -
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:2132 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe4⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2544
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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:2872
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C:\Users\Admin\AppData\Local\Temp\yaajsdaxqdhjcffh.exe"C:\Users\Admin\AppData\Local\Temp\yaajsdaxqdhjcffh.exe" elevate4⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2196 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C ""C:\Users\Admin\AppData\Local\Temp\yaajsdaxqdhjcffh.exe"" admin5⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1344 -
C:\Users\Admin\AppData\Local\Temp\yaajsdaxqdhjcffh.exe"C:\Users\Admin\AppData\Local\Temp\yaajsdaxqdhjcffh.exe" admin6⤵
- UAC bypass
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious use of AdjustPrivilegeToken
- System policy modification
PID:1396
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2368 -s 2403⤵
- Program crash
PID:2364
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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