gh0strat | aaa8fe6a957fa9a0268231d543288c42342bf9519c404528be2ccf9d4e0376d8

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
09/06/2024, 08:29

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General

Target
aaa8fe6a957fa9a0268231d543288c42342bf9519c404528be2ccf9d4e0376d8.exe
Size 2.0MB
Sample240609-kd2h2sgh37
SHA256 aaa8fe6a957fa9a0268231d543288c42342bf9519c404528be2ccf9d4e0376d8
MD5 210d14ca0c5a9f8a0530ab380e31e8b8
SHA1 edb8b0f697beab8e2dd6ffc7b082437a37a53e0b
SHA512 2cefecb6938ddc7edd180a68213180e78126c583c5149f8cae29e289d9317a496d5340aafce676da0c239bb5b90d0ecf0906490336c434a6b50bbbf2ba9d5aa7
SSDEEP 49152:+09XJt4HIN2H2tFvduySydZPItx2apeapelI:vZJt4HINy2LkZtUvlI
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 11 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/4616-10-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4616-7-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4616-6-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2544-15-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2544-16-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2544-19-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2472-28-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2544-22-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2472-58-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2472-60-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2472-68-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 11 IoCs

resource	yara_rule
behavioral2/memory/4616-10-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4616-7-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4616-6-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2544-15-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2544-16-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2544-19-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2472-28-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2544-22-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2472-58-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2472-60-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2472-68-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat

Gh0strat
Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.
rat gh0strat
PurpleFox
PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.
rootkit trojan purplefox

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File created	C:\Windows\system32\drivers\QAssist.sys	TXPlatforn.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

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

Executes dropped EXE 4 IoCs

pid	Process
4616	RVN.exe
2544	TXPlatforn.exe
2472	TXPlatforn.exe
1580	HD_aaa8fe6a957fa9a0268231d543288c42342bf9519c404528be2ccf9d4e0376d8.exe

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4616-4-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4616-10-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4616-7-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4616-6-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2544-13-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2544-15-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2544-16-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2544-19-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2472-28-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2544-22-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2472-58-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2472-60-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2472-68-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\TXPlatforn.exe	RVN.exe
File opened for modification	C:\Windows\SysWOW64\TXPlatforn.exe	RVN.exe

Drops file in Program Files directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe	aaa8fe6a957fa9a0268231d543288c42342bf9519c404528be2ccf9d4e0376d8.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	aaa8fe6a957fa9a0268231d543288c42342bf9519c404528be2ccf9d4e0376d8.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	aaa8fe6a957fa9a0268231d543288c42342bf9519c404528be2ccf9d4e0376d8.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	aaa8fe6a957fa9a0268231d543288c42342bf9519c404528be2ccf9d4e0376d8.exe
File created	C:\Program Files (x86)\Google\Chrome\Application\chrome.exe	aaa8fe6a957fa9a0268231d543288c42342bf9519c404528be2ccf9d4e0376d8.exe

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

System Information Discovery
T1082

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2328	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4536	aaa8fe6a957fa9a0268231d543288c42342bf9519c404528be2ccf9d4e0376d8.exe
4536	aaa8fe6a957fa9a0268231d543288c42342bf9519c404528be2ccf9d4e0376d8.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2472	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4616	RVN.exe
Token: SeLoadDriverPrivilege	2472	TXPlatforn.exe
Token: 33	2472	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2472	TXPlatforn.exe
Token: 33	2472	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2472	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4536	aaa8fe6a957fa9a0268231d543288c42342bf9519c404528be2ccf9d4e0376d8.exe
4536	aaa8fe6a957fa9a0268231d543288c42342bf9519c404528be2ccf9d4e0376d8.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4536 wrote to memory of 4616	4536	aaa8fe6a957fa9a0268231d543288c42342bf9519c404528be2ccf9d4e0376d8.exe	82
PID 4536 wrote to memory of 4616	4536	aaa8fe6a957fa9a0268231d543288c42342bf9519c404528be2ccf9d4e0376d8.exe	82
PID 4536 wrote to memory of 4616	4536	aaa8fe6a957fa9a0268231d543288c42342bf9519c404528be2ccf9d4e0376d8.exe	82
PID 4616 wrote to memory of 4688	4616	RVN.exe	85
PID 4616 wrote to memory of 4688	4616	RVN.exe	85
PID 4616 wrote to memory of 4688	4616	RVN.exe	85
PID 2544 wrote to memory of 2472	2544	TXPlatforn.exe	87
PID 2544 wrote to memory of 2472	2544	TXPlatforn.exe	87
PID 2544 wrote to memory of 2472	2544	TXPlatforn.exe	87
PID 4688 wrote to memory of 2328	4688	cmd.exe	89
PID 4688 wrote to memory of 2328	4688	cmd.exe	89
PID 4688 wrote to memory of 2328	4688	cmd.exe	89

C:\Users\Admin\AppData\Local\Temp\aaa8fe6a957fa9a0268231d543288c42342bf9519c404528be2ccf9d4e0376d8.exe
"C:\Users\Admin\AppData\Local\Temp\aaa8fe6a957fa9a0268231d543288c42342bf9519c404528be2ccf9d4e0376d8.exe"
1⤵
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4536
- C:\Users\Admin\AppData\Local\Temp\RVN.exe
  C:\Users\Admin\AppData\Local\Temp\\RVN.exe
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4616
- - 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\RVN.exe > nul
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4688
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:2328
- C:\Users\Admin\AppData\Local\Temp\HD_aaa8fe6a957fa9a0268231d543288c42342bf9519c404528be2ccf9d4e0376d8.exe
  C:\Users\Admin\AppData\Local\Temp\HD_aaa8fe6a957fa9a0268231d543288c42342bf9519c404528be2ccf9d4e0376d8.exe
  2⤵
  - Executes dropped EXE
  PID:1580

C:\Windows\SysWOW64\TXPlatforn.exe
C:\Windows\SysWOW64\TXPlatforn.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2544
- 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:2472

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

HD_X.dat

Path C:\Users\Admin\AppData\Local\Temp\HD_X.dat
Size 1.3MB
SHA256 f39870fd835102f437a4445fabcf87f4e2d14a29b19857cc595e9adb13a5a6e4
MD5 0400196b2d47e31c89ff92dfe9726ec6
SHA1 4281b1add4a375d236ae2706286be41bf19bfc84
SHA512 dfb82b358a4c80c8befff788e12cf193389a7cb9fe4b1e019057e85802992c7b8ab682bde03d0ccfd1e46ce9c49268b4c1dd459f7954b8e85442c58221b33ef0
SSDEEP 24576:+09tv9/7JtDElDEExIko2H2HESq2eWJ6MQjySjy+IOr:+09XJt4HIN2H2tFvduySyw
MD5 SHA1 SHA512 SSDEEP

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HD_aaa8fe6a957fa9a0268231d543288c42342bf9519c404528be2ccf9d4e0376d8.exe

Path C:\Users\Admin\AppData\Local\Temp\HD_aaa8fe6a957fa9a0268231d543288c42342bf9519c404528be2ccf9d4e0376d8.exe
Size 645KB
SHA256 7addb2269266ac471a690802cab54539b40c2ae5b31e2120fdcf8dfb0ed15dc7
MD5 00eae789b0aab1b0fbd23b830fbf1064
SHA1 e4e5fd089f6ae17c83f073cf91edc9db8189980d
SHA512 23a0e06b39f8b5a932ae5b8f60704ba265332b341ac8bab5b74b2f31f04ce8c7fe6f77278d70c7685cfa894ab0e25a70d89990f5f643b54c07337f90fa5943fb
SSDEEP 12288:HNpZY93s7p1R0Ys/tx2tzwHJem7OzwHJe0Ihf7M:HNpZY67zRfItx2hwpemIwpelDM
MD5 SHA1 SHA512 SSDEEP

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RVN.exe

Path C:\Users\Admin\AppData\Local\Temp\RVN.exe
Size 377KB
SHA256 57a920389c044e3f5cf93dabff67070b4511e79779b6f874e08f92d8b0d7afbd
MD5 80ade1893dec9cab7f2e63538a464fcc
SHA1 c06614da33a65eddb506db00a124a3fc3f5be02e
SHA512 fffd4f3fccb5301b3c7a5b3bd92747f31549fbd9d0803fe5d502d1bb0ef979140988718c2ee1406ed3e755790d275185e120a56cbcb5ed2eadf62b5cdbfc4cc4
SSDEEP 6144:BEo7J1ixs4uVKE9rFEAHKThrBSq2hAzSM5mDo9lSJULHZqExlD2E1LxhJVwIe0Dy:Wo2HQVWAHkFSq2hAWJYlMUtrxlyuJVRq
MD5 SHA1 SHA512 SSDEEP

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memory/2472-68-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2472-60-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2472-58-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2472-28-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2544-22-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2544-19-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2544-16-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2544-15-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2544-13-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4616-6-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4616-7-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4616-10-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4616-4-0x0000000010000000-0x00000000101B6000-memory.dmp

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