gh0strat | abc6549b39ea1c21d44b1ca196a7bc5b85207f9b2be75ea78f233ea6f34afa62

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Ö÷¶¯·ÀÓù·þÎñÄ£¿é\Parameters\ServiceDll = "C:\\Windows\\system32\\240650375.txt"	svchos.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\QAssist\ImagePath = "system32\\DRIVERS\\QAssist.sys"	TXPlatforn.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	HD_abc6549b39ea1c21d44b1ca196a7bc5b85207f9b2be75ea78f233ea6f34afa62.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	HD_abc6549b39ea1c21d44b1ca196a7bc5b85207f9b2be75ea78f233ea6f34afa62.exe

Executes dropped EXE 6 IoCs

pid	Process
1612	svchost.exe
3764	TXPlatforn.exe
4604	TXPlatforn.exe
3164	svchos.exe
4352	HD_abc6549b39ea1c21d44b1ca196a7bc5b85207f9b2be75ea78f233ea6f34afa62.exe
1220	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

Loads dropped DLL 3 IoCs

pid	Process
3164	svchos.exe
2304	svchost.exe
1220	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

UPX packed file 14 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1612-4-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1612-6-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1612-8-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1612-7-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3764-13-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3764-15-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3764-17-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3764-16-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1612-22-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3764-27-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4604-24-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4604-34-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4604-42-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4604-39-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	HD_abc6549b39ea1c21d44b1ca196a7bc5b85207f9b2be75ea78f233ea6f34afa62.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	HD_abc6549b39ea1c21d44b1ca196a7bc5b85207f9b2be75ea78f233ea6f34afa62.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\TXPlatforn.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\TXPlatforn.exe	svchost.exe
File created	C:\Windows\SysWOW64\240650375.txt	svchos.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	svchos.exe
File created	C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe	svchost.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4352	HD_abc6549b39ea1c21d44b1ca196a7bc5b85207f9b2be75ea78f233ea6f34afa62.exe

Drops file in Program Files directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	abc6549b39ea1c21d44b1ca196a7bc5b85207f9b2be75ea78f233ea6f34afa62.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	abc6549b39ea1c21d44b1ca196a7bc5b85207f9b2be75ea78f233ea6f34afa62.exe
File created	C:\Program Files (x86)\Google\Chrome\Application\chrome.exe	abc6549b39ea1c21d44b1ca196a7bc5b85207f9b2be75ea78f233ea6f34afa62.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	abc6549b39ea1c21d44b1ca196a7bc5b85207f9b2be75ea78f233ea6f34afa62.exe
File created	C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe	abc6549b39ea1c21d44b1ca196a7bc5b85207f9b2be75ea78f233ea6f34afa62.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4728	4352	WerFault.exe	98

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1772	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1496	abc6549b39ea1c21d44b1ca196a7bc5b85207f9b2be75ea78f233ea6f34afa62.exe
1496	abc6549b39ea1c21d44b1ca196a7bc5b85207f9b2be75ea78f233ea6f34afa62.exe
4352	HD_abc6549b39ea1c21d44b1ca196a7bc5b85207f9b2be75ea78f233ea6f34afa62.exe
4352	HD_abc6549b39ea1c21d44b1ca196a7bc5b85207f9b2be75ea78f233ea6f34afa62.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
4604	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1612	svchost.exe
Token: SeLoadDriverPrivilege	4604	TXPlatforn.exe
Token: 33	4604	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	4604	TXPlatforn.exe
Token: 33	4604	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	4604	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1496	abc6549b39ea1c21d44b1ca196a7bc5b85207f9b2be75ea78f233ea6f34afa62.exe
1496	abc6549b39ea1c21d44b1ca196a7bc5b85207f9b2be75ea78f233ea6f34afa62.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1496 wrote to memory of 1612	1496	abc6549b39ea1c21d44b1ca196a7bc5b85207f9b2be75ea78f233ea6f34afa62.exe	89
PID 1496 wrote to memory of 1612	1496	abc6549b39ea1c21d44b1ca196a7bc5b85207f9b2be75ea78f233ea6f34afa62.exe	89
PID 1496 wrote to memory of 1612	1496	abc6549b39ea1c21d44b1ca196a7bc5b85207f9b2be75ea78f233ea6f34afa62.exe	89
PID 1612 wrote to memory of 672	1612	svchost.exe	91
PID 1612 wrote to memory of 672	1612	svchost.exe	91
PID 1612 wrote to memory of 672	1612	svchost.exe	91
PID 3764 wrote to memory of 4604	3764	TXPlatforn.exe	92
PID 3764 wrote to memory of 4604	3764	TXPlatforn.exe	92
PID 3764 wrote to memory of 4604	3764	TXPlatforn.exe	92
PID 1496 wrote to memory of 3164	1496	abc6549b39ea1c21d44b1ca196a7bc5b85207f9b2be75ea78f233ea6f34afa62.exe	94
PID 1496 wrote to memory of 3164	1496	abc6549b39ea1c21d44b1ca196a7bc5b85207f9b2be75ea78f233ea6f34afa62.exe	94
PID 1496 wrote to memory of 3164	1496	abc6549b39ea1c21d44b1ca196a7bc5b85207f9b2be75ea78f233ea6f34afa62.exe	94
PID 672 wrote to memory of 1772	672	cmd.exe	97
PID 672 wrote to memory of 1772	672	cmd.exe	97
PID 672 wrote to memory of 1772	672	cmd.exe	97
PID 1496 wrote to memory of 4352	1496	abc6549b39ea1c21d44b1ca196a7bc5b85207f9b2be75ea78f233ea6f34afa62.exe	98
PID 1496 wrote to memory of 4352	1496	abc6549b39ea1c21d44b1ca196a7bc5b85207f9b2be75ea78f233ea6f34afa62.exe	98
PID 1496 wrote to memory of 4352	1496	abc6549b39ea1c21d44b1ca196a7bc5b85207f9b2be75ea78f233ea6f34afa62.exe	98
PID 2304 wrote to memory of 1220	2304	svchost.exe	99
PID 2304 wrote to memory of 1220	2304	svchost.exe	99
PID 2304 wrote to memory of 1220	2304	svchost.exe	99

C:\Users\Admin\AppData\Local\Temp\abc6549b39ea1c21d44b1ca196a7bc5b85207f9b2be75ea78f233ea6f34afa62.exe
"C:\Users\Admin\AppData\Local\Temp\abc6549b39ea1c21d44b1ca196a7bc5b85207f9b2be75ea78f233ea6f34afa62.exe"
1⤵
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1496
- C:\Users\Admin\AppData\Local\Temp\svchost.exe
  C:\Users\Admin\AppData\Local\Temp\\svchost.exe
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1612
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ping -n 2 127.0.0.1 > nul && del C:\Users\Admin\AppData\Local\Temp\svchost.exe > nul
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:672
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:1772
- C:\Users\Admin\AppData\Local\Temp\svchos.exe
  C:\Users\Admin\AppData\Local\Temp\\svchos.exe
  2⤵
  - Sets DLL path for service in the registry
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  PID:3164
- C:\Users\Admin\AppData\Local\Temp\HD_abc6549b39ea1c21d44b1ca196a7bc5b85207f9b2be75ea78f233ea6f34afa62.exe
  C:\Users\Admin\AppData\Local\Temp\HD_abc6549b39ea1c21d44b1ca196a7bc5b85207f9b2be75ea78f233ea6f34afa62.exe
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Checks whether UAC is enabled
  - Writes to the Master Boot Record (MBR)
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  PID:4352
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4352 -s 1152
    3⤵
    - Program crash
    PID:4728

C:\Windows\SysWOW64\TXPlatforn.exe
C:\Windows\SysWOW64\TXPlatforn.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3764
- C:\Windows\SysWOW64\TXPlatforn.exe
  C:\Windows\SysWOW64\TXPlatforn.exe -acsi
  2⤵
  - Drops file in Drivers directory
  - Sets service image path in registry
  - Executes dropped EXE
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:4604

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
1⤵
PID:636

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2304
- C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
  C:\Windows\system32\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe "c:\windows\system32\240650375.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:1220

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4352 -ip 4352
1⤵
PID:1012

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4140 --field-trial-handle=2692,i,8678872182442199182,12502579059484928042,262144 --variations-seed-version /prefetch:8
1⤵
PID:1480

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Defense Evasion

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

3

T1082

Virtualization/Sandbox Evasion