Analysis
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max time kernel
150s -
max time network
147s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
23-01-2025 22:22
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe
Resource
win7-20241010-en
windows7-x64
16 signatures
150 seconds
General
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Target
JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe
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Size
104KB
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MD5
1b9323716eee3a15fbfaf3114a84587b
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SHA1
4d98888b359eac14ad25c9e23241d79916e266e2
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SHA256
6298708d73d2ab3b75c696c339cd9725b5b3b5666e2318b4743d47ccfe0398b1
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SHA512
0aa4adcba854a130c0d055bc7d7e43a670f93d4f3dc53a214aaf1de25faf473deca442f4c8de24032d93d650ccf45dca1375ea9f33357d6c5fcbf37a384ac1ef
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SSDEEP
3072:rwp5qQH41CSgTnXIQo1rmGT8ahrFzk8jwaaHw7Koj4rt8:rwLqH8SanXKmND8
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\\rnsmobec\\aqkyybns.exe" svchost.exe -
Ramnit family
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UAC bypass 3 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" svchost.exe -
Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion svchost.exe -
Drops startup file 2 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\aqkyybns.exe svchost.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\aqkyybns.exe svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 2772 ryftbdpydspkvomu.exe -
Impair Defenses: Safe Mode Boot 1 TTPs 3 IoCs
description ioc Process Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\WinDefend svchost.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\ProfSvc svchost.exe Key deleted \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\Power svchost.exe -
Loads dropped DLL 4 IoCs
pid Process 2564 JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe 2564 JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe 2564 JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe 2564 JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\AqkYybns = "C:\\Users\\Admin\\AppData\\Local\\rnsmobec\\aqkyybns.exe" svchost.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 4 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 JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe 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 ryftbdpydspkvomu.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe 2396 svchost.exe -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 464 Process not Found -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeSecurityPrivilege 2564 JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe Token: SeDebugPrivilege 2564 JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe Token: SeSecurityPrivilege 2352 svchost.exe Token: SeSecurityPrivilege 2396 svchost.exe Token: SeDebugPrivilege 2396 svchost.exe Token: SeRestorePrivilege 2396 svchost.exe Token: SeBackupPrivilege 2396 svchost.exe Token: SeRestorePrivilege 2396 svchost.exe Token: SeBackupPrivilege 2396 svchost.exe Token: SeRestorePrivilege 2396 svchost.exe Token: SeBackupPrivilege 2396 svchost.exe Token: SeRestorePrivilege 2396 svchost.exe Token: SeBackupPrivilege 2396 svchost.exe Token: SeRestorePrivilege 2396 svchost.exe Token: SeBackupPrivilege 2396 svchost.exe Token: SeRestorePrivilege 2396 svchost.exe Token: SeBackupPrivilege 2396 svchost.exe Token: SeSecurityPrivilege 2772 ryftbdpydspkvomu.exe Token: SeLoadDriverPrivilege 2772 ryftbdpydspkvomu.exe Token: SeRestorePrivilege 2396 svchost.exe Token: SeBackupPrivilege 2396 svchost.exe Token: SeRestorePrivilege 2396 svchost.exe Token: SeBackupPrivilege 2396 svchost.exe Token: SeRestorePrivilege 2396 svchost.exe Token: SeBackupPrivilege 2396 svchost.exe Token: SeRestorePrivilege 2396 svchost.exe Token: SeBackupPrivilege 2396 svchost.exe Token: SeRestorePrivilege 2396 svchost.exe Token: SeBackupPrivilege 2396 svchost.exe Token: SeRestorePrivilege 2396 svchost.exe Token: SeBackupPrivilege 2396 svchost.exe Token: SeRestorePrivilege 2396 svchost.exe Token: SeBackupPrivilege 2396 svchost.exe Token: SeRestorePrivilege 2396 svchost.exe Token: SeBackupPrivilege 2396 svchost.exe Token: SeRestorePrivilege 2396 svchost.exe Token: SeBackupPrivilege 2396 svchost.exe Token: SeRestorePrivilege 2396 svchost.exe Token: SeBackupPrivilege 2396 svchost.exe Token: SeRestorePrivilege 2396 svchost.exe Token: SeBackupPrivilege 2396 svchost.exe Token: SeRestorePrivilege 2396 svchost.exe Token: SeBackupPrivilege 2396 svchost.exe Token: SeRestorePrivilege 2396 svchost.exe Token: SeBackupPrivilege 2396 svchost.exe Token: SeRestorePrivilege 2396 svchost.exe Token: SeBackupPrivilege 2396 svchost.exe Token: SeRestorePrivilege 2396 svchost.exe Token: SeBackupPrivilege 2396 svchost.exe Token: SeRestorePrivilege 2396 svchost.exe Token: SeBackupPrivilege 2396 svchost.exe Token: SeRestorePrivilege 2396 svchost.exe Token: SeBackupPrivilege 2396 svchost.exe Token: SeRestorePrivilege 2396 svchost.exe Token: SeBackupPrivilege 2396 svchost.exe Token: SeRestorePrivilege 2396 svchost.exe Token: SeBackupPrivilege 2396 svchost.exe Token: SeRestorePrivilege 2396 svchost.exe Token: SeBackupPrivilege 2396 svchost.exe Token: SeRestorePrivilege 2396 svchost.exe Token: SeBackupPrivilege 2396 svchost.exe Token: SeRestorePrivilege 2396 svchost.exe Token: SeBackupPrivilege 2396 svchost.exe Token: SeRestorePrivilege 2396 svchost.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 2564 wrote to memory of 2352 2564 JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe 30 PID 2564 wrote to memory of 2352 2564 JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe 30 PID 2564 wrote to memory of 2352 2564 JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe 30 PID 2564 wrote to memory of 2352 2564 JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe 30 PID 2564 wrote to memory of 2352 2564 JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe 30 PID 2564 wrote to memory of 2352 2564 JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe 30 PID 2564 wrote to memory of 2352 2564 JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe 30 PID 2564 wrote to memory of 2352 2564 JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe 30 PID 2564 wrote to memory of 2352 2564 JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe 30 PID 2564 wrote to memory of 2352 2564 JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe 30 PID 2564 wrote to memory of 2396 2564 JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe 31 PID 2564 wrote to memory of 2396 2564 JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe 31 PID 2564 wrote to memory of 2396 2564 JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe 31 PID 2564 wrote to memory of 2396 2564 JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe 31 PID 2564 wrote to memory of 2396 2564 JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe 31 PID 2564 wrote to memory of 2396 2564 JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe 31 PID 2564 wrote to memory of 2396 2564 JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe 31 PID 2564 wrote to memory of 2396 2564 JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe 31 PID 2564 wrote to memory of 2396 2564 JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe 31 PID 2564 wrote to memory of 2396 2564 JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe 31 PID 2564 wrote to memory of 2772 2564 JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe 32 PID 2564 wrote to memory of 2772 2564 JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe 32 PID 2564 wrote to memory of 2772 2564 JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe 32 PID 2564 wrote to memory of 2772 2564 JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1b9323716eee3a15fbfaf3114a84587b.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2564 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2352
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C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe2⤵
- Modifies WinLogon for persistence
- UAC bypass
- Checks BIOS information in registry
- Drops startup file
- Impair Defenses: Safe Mode Boot
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2396
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C:\Users\Admin\AppData\Local\Temp\ryftbdpydspkvomu.exe"C:\Users\Admin\AppData\Local\Temp\ryftbdpydspkvomu.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2772
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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
2Disable or Modify Tools
1Safe Mode Boot
1Modify Registry
3Replay Monitor
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Downloads
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Filesize
104KB
MD51b9323716eee3a15fbfaf3114a84587b
SHA14d98888b359eac14ad25c9e23241d79916e266e2
SHA2566298708d73d2ab3b75c696c339cd9725b5b3b5666e2318b4743d47ccfe0398b1
SHA5120aa4adcba854a130c0d055bc7d7e43a670f93d4f3dc53a214aaf1de25faf473deca442f4c8de24032d93d650ccf45dca1375ea9f33357d6c5fcbf37a384ac1ef