gh0strat | b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147

General

Target

b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe
Size

3.2MB
MD5

7c33335b61f1daf9f0b4e1b887a27966
SHA1

27f7827f4fd343645bf6131c2f9b693aa5f52de5
SHA256

b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147
SHA512

26d9af547a273e991ca3ed02947f0cf2aad59de9e147faa90214d758100553cbd310d63f9e2faf42d939e3fa79b4b1ae4c7ba1c60e378354e5707873c201b24d
SSDEEP

49152:w09XJt4HIN2H2tFvduySSDmn2uWr1r9XtJ3jGsc0NytD889X3HVCDC:1ZJt4HINy2LkSDmn2uEBtJ3jGscPtRX

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 10 IoCs

Detect PurpleFox Rootkit.

rootkit

Processes:

resource	yara_rule
behavioral1/memory/2964-8-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2964-9-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2964-7-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1776-18-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1776-24-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2708-43-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2708-42-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2708-60-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2708-69-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2708-70-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 10 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2964-8-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2964-9-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2964-7-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1776-18-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1776-24-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2708-43-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2708-42-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2708-60-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2708-69-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2708-70-0x0000000010000000-0x00000000101B6000-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

Processes:

TXPlatforn.exe

description ioc process

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

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

Processes:

TXPlatforn.exe

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

Executes dropped EXE 4 IoCs

Processes:

RVN.exeTXPlatforn.exeTXPlatforn.exeHD_b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe

pid process

2964 RVN.exe
1776 TXPlatforn.exe
2708 TXPlatforn.exe
2608 HD_b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe

pid	process
2964	RVN.exe
1776	TXPlatforn.exe
2708	TXPlatforn.exe
2608	HD_b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe

Loads dropped DLL 3 IoCs

Processes:

b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exeTXPlatforn.exe

pid	process
1320	b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe
1776	TXPlatforn.exe
1320	b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe

UPX packed file 12 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2964-5-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2964-8-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2964-9-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2964-7-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1776-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1776-24-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2708-39-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2708-43-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2708-42-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2708-60-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2708-69-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2708-70-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 2 IoCs

Processes:

RVN.exe

description ioc process

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

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 4 IoCs

Processes:

b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe	b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe
File created	C:\Program Files (x86)\Google\Chrome\Application\chrome.exe	b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.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

Processes:

PING.EXE

pid process

2996 PING.EXE
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe

pid process

1320 b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe
Suspicious behavior: LoadsDriver 1 IoCs

Processes:

TXPlatforn.exe

pid process

2708 TXPlatforn.exe

pid	process
2996	PING.EXE

pid	process
2708	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

RVN.exeTXPlatforn.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	2964	RVN.exe
Token: SeLoadDriverPrivilege	2708	TXPlatforn.exe
Token: 33	2708	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2708	TXPlatforn.exe
Token: 33	2708	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2708	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe

pid	process
1320	b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe
1320	b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exeRVN.exeTXPlatforn.execmd.exe

description	pid	process	target process
PID 1320 wrote to memory of 2964	1320	b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe	RVN.exe
PID 1320 wrote to memory of 2964	1320	b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe	RVN.exe
PID 1320 wrote to memory of 2964	1320	b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe	RVN.exe
PID 1320 wrote to memory of 2964	1320	b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe	RVN.exe
PID 1320 wrote to memory of 2964	1320	b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe	RVN.exe
PID 1320 wrote to memory of 2964	1320	b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe	RVN.exe
PID 1320 wrote to memory of 2964	1320	b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe	RVN.exe
PID 2964 wrote to memory of 2084	2964	RVN.exe	cmd.exe
PID 2964 wrote to memory of 2084	2964	RVN.exe	cmd.exe
PID 2964 wrote to memory of 2084	2964	RVN.exe	cmd.exe
PID 2964 wrote to memory of 2084	2964	RVN.exe	cmd.exe
PID 1776 wrote to memory of 2708	1776	TXPlatforn.exe	TXPlatforn.exe
PID 1776 wrote to memory of 2708	1776	TXPlatforn.exe	TXPlatforn.exe
PID 1776 wrote to memory of 2708	1776	TXPlatforn.exe	TXPlatforn.exe
PID 1776 wrote to memory of 2708	1776	TXPlatforn.exe	TXPlatforn.exe
PID 1776 wrote to memory of 2708	1776	TXPlatforn.exe	TXPlatforn.exe
PID 1776 wrote to memory of 2708	1776	TXPlatforn.exe	TXPlatforn.exe
PID 1776 wrote to memory of 2708	1776	TXPlatforn.exe	TXPlatforn.exe
PID 1320 wrote to memory of 2608	1320	b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe	HD_b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe
PID 1320 wrote to memory of 2608	1320	b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe	HD_b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe
PID 1320 wrote to memory of 2608	1320	b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe	HD_b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe
PID 1320 wrote to memory of 2608	1320	b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe	HD_b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe
PID 2084 wrote to memory of 2996	2084	cmd.exe	PING.EXE
PID 2084 wrote to memory of 2996	2084	cmd.exe	PING.EXE
PID 2084 wrote to memory of 2996	2084	cmd.exe	PING.EXE
PID 2084 wrote to memory of 2996	2084	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe
"C:\Users\Admin\AppData\Local\Temp\b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1320
- 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:2964
- - 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:2084
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:2996
- C:\Users\Admin\AppData\Local\Temp\HD_b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe
  C:\Users\Admin\AppData\Local\Temp\HD_b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe
  2⤵
  - Executes dropped EXE
  PID:2608

C:\Windows\SysWOW64\TXPlatforn.exe
C:\Windows\SysWOW64\TXPlatforn.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1776
- 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:2708

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Remote System Discovery

1

T1018

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\HD_X.dat

Filesize
1.5MB

MD5
30d7f6a5a14dee4b7805eedc2abb53dd

SHA1
6918234d4f4cec5480f2f11e80dc3d01e55f25ec

SHA256
83818a7e703ee207ea4e5625938fc3552d48c138cdb536447f1b62566dd3743c

SHA512
e9d11811c2f03b22636e2c9698ce3a0471c7f0dc0f64751c6df6c5b3e89b2582cc2608a5545bc1ff07621ed8973e249918dbea1806a5e0ecaabb6e5486ced08c

Download Submit
C:\Users\Admin\AppData\Local\Temp\HD_b2cb77a1bcfdcf5e9a0c19b8028730b025a3558c79e117e6779a058f8e1b0147.exe

Filesize
1.7MB

MD5
340eeb2c9e1476048bae5ed2b93b3068

SHA1
c7514cc2ab4d25b631d43e07ff50138bd18f03fe

SHA256
929f2fe4f5225f0292cf1a4a3302bf311760a417e5a5d6c767e682f252bed1a9

SHA512
86462515315478fa4d594210e5a9acd31b53cd27ca0123b9598859c6ff113418e8b3bfab8d6a8d68f64b530f9040011b67a17c725604dafb2eebd6cfaa452377

Download Submit
\Users\Admin\AppData\Local\Temp\RVN.exe

Filesize
377KB

MD5
80ade1893dec9cab7f2e63538a464fcc

SHA1
c06614da33a65eddb506db00a124a3fc3f5be02e

SHA256
57a920389c044e3f5cf93dabff67070b4511e79779b6f874e08f92d8b0d7afbd

SHA512
fffd4f3fccb5301b3c7a5b3bd92747f31549fbd9d0803fe5d502d1bb0ef979140988718c2ee1406ed3e755790d275185e120a56cbcb5ed2eadf62b5cdbfc4cc4

Download Submit
memory/1776-18-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1776-24-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2708-43-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2708-39-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2708-42-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2708-60-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2708-69-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2708-70-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2964-7-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2964-9-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2964-8-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2964-5-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads