imminent | 92a8bd87031e9e9d39ff15152ffe18e5a5f5a15888f106c1d4bee17cca925862

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions	b9dc7755917b72f0d10994ff3c3b0967_JaffaCakes118.exe

Looks for VMWare Tools registry key 2 TTPs 1 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\VMware, Inc.\VMware Tools	b9dc7755917b72f0d10994ff3c3b0967_JaffaCakes118.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	b9dc7755917b72f0d10994ff3c3b0967_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	b9dc7755917b72f0d10994ff3c3b0967_JaffaCakes118.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	b9dc7755917b72f0d10994ff3c3b0967_JaffaCakes118.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	RegAsm.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	RegAsm.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

Peripheral Device Discovery

T1120

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	b9dc7755917b72f0d10994ff3c3b0967_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	b9dc7755917b72f0d10994ff3c3b0967_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4532 set thread context of 2404	4532	b9dc7755917b72f0d10994ff3c3b0967_JaffaCakes118.exe	93

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly	RegAsm.exe
File created	C:\Windows\assembly\Desktop.ini	RegAsm.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	RegAsm.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

pid	Process
2612	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4532	b9dc7755917b72f0d10994ff3c3b0967_JaffaCakes118.exe
4532	b9dc7755917b72f0d10994ff3c3b0967_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2404	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	4532	b9dc7755917b72f0d10994ff3c3b0967_JaffaCakes118.exe
Token: SeDebugPrivilege	2404	RegAsm.exe
Token: 33	2404	RegAsm.exe
Token: SeIncBasePriorityPrivilege	2404	RegAsm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2404	RegAsm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4532 wrote to memory of 2612	4532	b9dc7755917b72f0d10994ff3c3b0967_JaffaCakes118.exe	91
PID 4532 wrote to memory of 2612	4532	b9dc7755917b72f0d10994ff3c3b0967_JaffaCakes118.exe	91
PID 4532 wrote to memory of 2612	4532	b9dc7755917b72f0d10994ff3c3b0967_JaffaCakes118.exe	91
PID 4532 wrote to memory of 2404	4532	b9dc7755917b72f0d10994ff3c3b0967_JaffaCakes118.exe	93
PID 4532 wrote to memory of 2404	4532	b9dc7755917b72f0d10994ff3c3b0967_JaffaCakes118.exe	93
PID 4532 wrote to memory of 2404	4532	b9dc7755917b72f0d10994ff3c3b0967_JaffaCakes118.exe	93
PID 4532 wrote to memory of 2404	4532	b9dc7755917b72f0d10994ff3c3b0967_JaffaCakes118.exe	93
PID 4532 wrote to memory of 2404	4532	b9dc7755917b72f0d10994ff3c3b0967_JaffaCakes118.exe	93
PID 4532 wrote to memory of 2404	4532	b9dc7755917b72f0d10994ff3c3b0967_JaffaCakes118.exe	93
PID 4532 wrote to memory of 2404	4532	b9dc7755917b72f0d10994ff3c3b0967_JaffaCakes118.exe	93
PID 4532 wrote to memory of 2404	4532	b9dc7755917b72f0d10994ff3c3b0967_JaffaCakes118.exe	93

C:\Users\Admin\AppData\Local\Temp\b9dc7755917b72f0d10994ff3c3b0967_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b9dc7755917b72f0d10994ff3c3b0967_JaffaCakes118.exe"
1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Checks computer location settings
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4532
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\IjuZqUA" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1548.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2612
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  - Drops desktop.ini file(s)
  - Drops file in Windows directory
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2404

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:776

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

Persistence

Scheduled Task/Job

1

Privilege Escalation

Scheduled Task/Job

1

Defense Evasion

Virtualization/Sandbox Evasion

2

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

4

Virtualization/Sandbox Evasion

2