gh0strat | 94eb81082f081690654c8ab9186876762639302c5dd70b8785b4a18c9aed1c82

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
29/05/2024, 06:20

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General

Target
94eb81082f081690654c8ab9186876762639302c5dd70b8785b4a18c9aed1c82.exe
Size 2.3MB
Sample240529-g39deaea34
SHA256 94eb81082f081690654c8ab9186876762639302c5dd70b8785b4a18c9aed1c82
MD5 a3c1eb89784badec8693d1bff034ae59
SHA1 3537da6d4093360d2391f286178f7f3554da03ef
SHA512 0765d885978aa47448dcb3b495bd54a3fab3aeae8b7d351f7eb3ee9da0ab2db377f390d59b8c78494d8657c782a0510251b23cd1eb12c31fd2e5dae1bb4e46e2
SSDEEP 49152:k09XJt4HIN2H2tFvduySLILWqOlSCsfKOz:JZJt4HINy2LkLop0SCsfz
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/4964-7-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4964-10-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4964-6-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4644-15-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4644-17-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4644-16-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3568-23-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4644-27-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3568-30-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3568-33-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3568-35-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 11 IoCs

resource	yara_rule
behavioral2/memory/4964-7-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4964-10-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4964-6-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4644-15-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4644-17-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4644-16-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3568-23-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4644-27-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3568-30-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3568-33-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3568-35-0x0000000010000000-0x00000000101B6000-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

.NET Reactor proctector 1 IoCs

Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

resource	yara_rule
behavioral2/files/0x0007000000023422-29.dat	net_reactor

Executes dropped EXE 4 IoCs

pid	Process
4964	RVN.exe
4644	TXPlatforn.exe
3568	TXPlatforn.exe
768	HD_94eb81082f081690654c8ab9186876762639302c5dd70b8785b4a18c9aed1c82.exe

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4964-4-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4964-7-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4964-10-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4964-6-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4644-13-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4644-15-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4644-17-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4644-16-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3568-23-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4644-27-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3568-30-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3568-33-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3568-35-0x0000000010000000-0x00000000101B6000-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	94eb81082f081690654c8ab9186876762639302c5dd70b8785b4a18c9aed1c82.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	94eb81082f081690654c8ab9186876762639302c5dd70b8785b4a18c9aed1c82.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	94eb81082f081690654c8ab9186876762639302c5dd70b8785b4a18c9aed1c82.exe
File created	C:\Program Files (x86)\Google\Chrome\Application\chrome.exe	94eb81082f081690654c8ab9186876762639302c5dd70b8785b4a18c9aed1c82.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	94eb81082f081690654c8ab9186876762639302c5dd70b8785b4a18c9aed1c82.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
640	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3332	94eb81082f081690654c8ab9186876762639302c5dd70b8785b4a18c9aed1c82.exe
3332	94eb81082f081690654c8ab9186876762639302c5dd70b8785b4a18c9aed1c82.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
3568	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4964	RVN.exe
Token: SeLoadDriverPrivilege	3568	TXPlatforn.exe
Token: 33	3568	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	3568	TXPlatforn.exe
Token: 33	3568	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	3568	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3332	94eb81082f081690654c8ab9186876762639302c5dd70b8785b4a18c9aed1c82.exe
3332	94eb81082f081690654c8ab9186876762639302c5dd70b8785b4a18c9aed1c82.exe
768	HD_94eb81082f081690654c8ab9186876762639302c5dd70b8785b4a18c9aed1c82.exe
768	HD_94eb81082f081690654c8ab9186876762639302c5dd70b8785b4a18c9aed1c82.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3332 wrote to memory of 4964	3332	94eb81082f081690654c8ab9186876762639302c5dd70b8785b4a18c9aed1c82.exe	83
PID 3332 wrote to memory of 4964	3332	94eb81082f081690654c8ab9186876762639302c5dd70b8785b4a18c9aed1c82.exe	83
PID 3332 wrote to memory of 4964	3332	94eb81082f081690654c8ab9186876762639302c5dd70b8785b4a18c9aed1c82.exe	83
PID 4964 wrote to memory of 4920	4964	RVN.exe	85
PID 4964 wrote to memory of 4920	4964	RVN.exe	85
PID 4964 wrote to memory of 4920	4964	RVN.exe	85
PID 4644 wrote to memory of 3568	4644	TXPlatforn.exe	86
PID 4644 wrote to memory of 3568	4644	TXPlatforn.exe	86
PID 4644 wrote to memory of 3568	4644	TXPlatforn.exe	86
PID 3332 wrote to memory of 768	3332	94eb81082f081690654c8ab9186876762639302c5dd70b8785b4a18c9aed1c82.exe	87
PID 3332 wrote to memory of 768	3332	94eb81082f081690654c8ab9186876762639302c5dd70b8785b4a18c9aed1c82.exe	87
PID 3332 wrote to memory of 768	3332	94eb81082f081690654c8ab9186876762639302c5dd70b8785b4a18c9aed1c82.exe	87
PID 4920 wrote to memory of 640	4920	cmd.exe	89
PID 4920 wrote to memory of 640	4920	cmd.exe	89
PID 4920 wrote to memory of 640	4920	cmd.exe	89

C:\Users\Admin\AppData\Local\Temp\94eb81082f081690654c8ab9186876762639302c5dd70b8785b4a18c9aed1c82.exe
"C:\Users\Admin\AppData\Local\Temp\94eb81082f081690654c8ab9186876762639302c5dd70b8785b4a18c9aed1c82.exe"
1⤵
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3332
- 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:4964
- - 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:4920
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:640
- C:\Users\Admin\AppData\Local\Temp\HD_94eb81082f081690654c8ab9186876762639302c5dd70b8785b4a18c9aed1c82.exe
  C:\Users\Admin\AppData\Local\Temp\HD_94eb81082f081690654c8ab9186876762639302c5dd70b8785b4a18c9aed1c82.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:768

C:\Windows\SysWOW64\TXPlatforn.exe
C:\Windows\SysWOW64\TXPlatforn.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4644
- 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:3568

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_94eb81082f081690654c8ab9186876762639302c5dd70b8785b4a18c9aed1c82.exe

Path C:\Users\Admin\AppData\Local\Temp\HD_94eb81082f081690654c8ab9186876762639302c5dd70b8785b4a18c9aed1c82.exe
Size 1.0MB
SHA256 9b45e766ea5c3258ebb17d43b3d2277f07bfc343ae147901507c09ec7e885a31
MD5 895ca447cb85e1b2cd41b14cc069369a
SHA1 f85532e1d69f1ce7aa8c3019ee65eef952ab7f93
SHA512 12d57a3f00114ef49489569ad598e3b4631172b51ecaffe95cd25d226f1a59f91bd0dea1409b312d9309ebc736d6f7487ea6fa23b393729bd63119d92e0bcfd7
SSDEEP 12288:rjFVj1LKppKVWMD9WD2PubHtcVoyx+4Jq8vhJCthv1+ut8KUS:rjFVBLKLOWA9PPSCqN4IaIhQumKUS
MD5 SHA1 SHA512 SSDEEP

Submit Download

HD_X.dat

Path C:\Users\Admin\AppData\Local\Temp\HD_X.dat
Size 1.2MB
SHA256 143a56f69553cf0bb60c17b9d35ae68d75122df06372380c4beefbbaf5e5115a
MD5 149e27f2d4a8c0486bfba7973e5a297c
SHA1 a0cde06f8dedb615a51b0b6c4049c0f7d69b1230
SHA512 071de21c5685b5bc9ebe71c8ea96719d99d87412d85a0056b5fd28b02bb4885374efcde846735bf1753be2e0c9fe20c8f4bdcf524b6ff4e197d0d8484e3dd4b9
SSDEEP 24576:k09tv9/7JtDElDEExIko2H2HESq2eWJ6MQjySjy+xILP:k09XJt4HIN2H2tFvduySLILP
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

Submit Download

memory/3568-35-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3568-33-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3568-30-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3568-23-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4644-16-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4644-17-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4644-15-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4644-13-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4644-27-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4964-6-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4964-10-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4964-7-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4964-4-0x0000000010000000-0x00000000101B6000-memory.dmp

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