formbook | e99dc54786d789c023b028074e4fa0858d1cf59a04d7fd2f33319a24dfd7a978

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions	M.V TBN - SHIP PARTICULARS.exe

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\JTUDUFWHVFE = "C:\\Program Files (x86)\\Bkt_tnhq8\\chkdsk2d9l_r.exe"	msiexec.exe

Blocklisted process makes network request 2 IoCs

flow	pid	Process
10	1616	msiexec.exe
16	1616	msiexec.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	M.V TBN - SHIP PARTICULARS.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	M.V TBN - SHIP PARTICULARS.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	M.V TBN - SHIP PARTICULARS.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-1-5-21-3845472200-3839195424-595303356-1000\Control Panel\International\Geo\Nation	M.V TBN - SHIP PARTICULARS.exe

Deletes itself 1 IoCs

pid	Process
1220	cmd.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	M.V TBN - SHIP PARTICULARS.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	M.V TBN - SHIP PARTICULARS.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1280 set thread context of 1292	1280	M.V TBN - SHIP PARTICULARS.exe	31
PID 1292 set thread context of 1372	1292	M.V TBN - SHIP PARTICULARS.exe	16
PID 1292 set thread context of 1372	1292	M.V TBN - SHIP PARTICULARS.exe	16
PID 1616 set thread context of 1372	1616	msiexec.exe	16

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Bkt_tnhq8\chkdsk2d9l_r.exe	msiexec.exe

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-3845472200-3839195424-595303356-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	msiexec.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

pid	Process
848	powershell.exe
1292	M.V TBN - SHIP PARTICULARS.exe
1292	M.V TBN - SHIP PARTICULARS.exe
1292	M.V TBN - SHIP PARTICULARS.exe
1292	M.V TBN - SHIP PARTICULARS.exe
1292	M.V TBN - SHIP PARTICULARS.exe
1616	msiexec.exe
1616	msiexec.exe
1616	msiexec.exe
1616	msiexec.exe
1616	msiexec.exe
1616	msiexec.exe
1616	msiexec.exe
1616	msiexec.exe
1616	msiexec.exe
1616	msiexec.exe
1616	msiexec.exe
1616	msiexec.exe
1616	msiexec.exe
1616	msiexec.exe
1616	msiexec.exe

Suspicious behavior: MapViewOfSection 8 IoCs

pid	Process
1292	M.V TBN - SHIP PARTICULARS.exe
1292	M.V TBN - SHIP PARTICULARS.exe
1292	M.V TBN - SHIP PARTICULARS.exe
1292	M.V TBN - SHIP PARTICULARS.exe
1616	msiexec.exe
1616	msiexec.exe
1616	msiexec.exe
1616	msiexec.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	848	powershell.exe
Token: SeDebugPrivilege	1292	M.V TBN - SHIP PARTICULARS.exe
Token: SeDebugPrivilege	1616	msiexec.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1372	Explorer.EXE
1372	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1372	Explorer.EXE
1372	Explorer.EXE

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 1280 wrote to memory of 848	1280	M.V TBN - SHIP PARTICULARS.exe	28
PID 1280 wrote to memory of 848	1280	M.V TBN - SHIP PARTICULARS.exe	28
PID 1280 wrote to memory of 848	1280	M.V TBN - SHIP PARTICULARS.exe	28
PID 1280 wrote to memory of 848	1280	M.V TBN - SHIP PARTICULARS.exe	28
PID 1280 wrote to memory of 1292	1280	M.V TBN - SHIP PARTICULARS.exe	31
PID 1280 wrote to memory of 1292	1280	M.V TBN - SHIP PARTICULARS.exe	31
PID 1280 wrote to memory of 1292	1280	M.V TBN - SHIP PARTICULARS.exe	31
PID 1280 wrote to memory of 1292	1280	M.V TBN - SHIP PARTICULARS.exe	31
PID 1280 wrote to memory of 1292	1280	M.V TBN - SHIP PARTICULARS.exe	31
PID 1280 wrote to memory of 1292	1280	M.V TBN - SHIP PARTICULARS.exe	31
PID 1280 wrote to memory of 1292	1280	M.V TBN - SHIP PARTICULARS.exe	31
PID 1372 wrote to memory of 1616	1372	Explorer.EXE	32
PID 1372 wrote to memory of 1616	1372	Explorer.EXE	32
PID 1372 wrote to memory of 1616	1372	Explorer.EXE	32
PID 1372 wrote to memory of 1616	1372	Explorer.EXE	32
PID 1372 wrote to memory of 1616	1372	Explorer.EXE	32
PID 1372 wrote to memory of 1616	1372	Explorer.EXE	32
PID 1372 wrote to memory of 1616	1372	Explorer.EXE	32
PID 1616 wrote to memory of 1220	1616	msiexec.exe	33
PID 1616 wrote to memory of 1220	1616	msiexec.exe	33
PID 1616 wrote to memory of 1220	1616	msiexec.exe	33
PID 1616 wrote to memory of 1220	1616	msiexec.exe	33
PID 1616 wrote to memory of 940	1616	msiexec.exe	37
PID 1616 wrote to memory of 940	1616	msiexec.exe	37
PID 1616 wrote to memory of 940	1616	msiexec.exe	37
PID 1616 wrote to memory of 940	1616	msiexec.exe	37
PID 1616 wrote to memory of 940	1616	msiexec.exe	37

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1372
- C:\Users\Admin\AppData\Local\Temp\M.V TBN - SHIP PARTICULARS.exe
  "C:\Users\Admin\AppData\Local\Temp\M.V TBN - SHIP PARTICULARS.exe"
  2⤵
  - Looks for VirtualBox Guest Additions in registry
  - Looks for VMWare Tools registry key
  - Checks BIOS information in registry
  - Maps connected drives based on registry
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1280
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\M.V TBN - SHIP PARTICULARS.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:848
- - C:\Users\Admin\AppData\Local\Temp\M.V TBN - SHIP PARTICULARS.exe
    "C:\Users\Admin\AppData\Local\Temp\M.V TBN - SHIP PARTICULARS.exe"
    3⤵
    - Checks computer location settings
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1292
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\SysWOW64\msiexec.exe"
  2⤵
  - Adds policy Run key to start application
  - Blocklisted process makes network request
  - Suspicious use of SetThreadContext
  - Drops file in Program Files directory
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1616
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\M.V TBN - SHIP PARTICULARS.exe"
    3⤵
    - Deletes itself
    PID:1220
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:940

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Virtualization/Sandbox Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

System Information Discovery

Virtualization/Sandbox Evasion