gh0strat | 58aa156578a473ee6bcfe555309db3635a26172823851e510387fee5e6473c74

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
26/05/2024, 10:04

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General

Target
58aa156578a473ee6bcfe555309db3635a26172823851e510387fee5e6473c74.exe
Size 4.5MB
Sample240526-l4cs2sfc32
SHA256 58aa156578a473ee6bcfe555309db3635a26172823851e510387fee5e6473c74
MD5 b04e27c635ebfaaca05059a0002b3cf2
SHA1 681ec63bd0d54be62455b9092a11ed873b9e0138
SHA512 d73c679bfb56ee68edb231f5f665bc0c3a7c259560fa047758114f4cfcf20ff22bf13ccbd39944cd8efb0ec9bd434bb35fc4aa37769a3887eb2c9cfd4e80d9cc
SSDEEP 49152:709XJt4HIN2H2tFvduySPebXsPNIULkmp1/j6AeXZG7wmpvGF1IP9z5WuHC4O8bU:oZJt4HINy2Lk2bXsPN5kiQaZ56
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/1880-6-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1880-10-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1880-7-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3092-15-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3092-17-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3092-16-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4352-21-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3092-24-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4352-29-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4352-34-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4352-46-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 11 IoCs

resource	yara_rule
behavioral2/memory/1880-6-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1880-10-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1880-7-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3092-15-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3092-17-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3092-16-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4352-21-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3092-24-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4352-29-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4352-34-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4352-46-0x0000000010000000-0x00000000101B6000-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
1880	RVN.exe
3092	TXPlatforn.exe
4352	TXPlatforn.exe
1036	HD_58aa156578a473ee6bcfe555309db3635a26172823851e510387fee5e6473c74.exe

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1880-4-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1880-6-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1880-10-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1880-7-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3092-15-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3092-17-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3092-16-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4352-21-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3092-24-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4352-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4352-34-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4352-46-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3092-13-0x0000000010000000-0x00000000101B6000-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	58aa156578a473ee6bcfe555309db3635a26172823851e510387fee5e6473c74.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	58aa156578a473ee6bcfe555309db3635a26172823851e510387fee5e6473c74.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	58aa156578a473ee6bcfe555309db3635a26172823851e510387fee5e6473c74.exe
File created	C:\Program Files (x86)\Google\Chrome\Application\chrome.exe	58aa156578a473ee6bcfe555309db3635a26172823851e510387fee5e6473c74.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	58aa156578a473ee6bcfe555309db3635a26172823851e510387fee5e6473c74.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
2148	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1300	58aa156578a473ee6bcfe555309db3635a26172823851e510387fee5e6473c74.exe
1300	58aa156578a473ee6bcfe555309db3635a26172823851e510387fee5e6473c74.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
4352	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1880	RVN.exe
Token: SeLoadDriverPrivilege	4352	TXPlatforn.exe
Token: 33	4352	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	4352	TXPlatforn.exe
Token: 33	4352	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	4352	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1300	58aa156578a473ee6bcfe555309db3635a26172823851e510387fee5e6473c74.exe
1300	58aa156578a473ee6bcfe555309db3635a26172823851e510387fee5e6473c74.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1300 wrote to memory of 1880	1300	58aa156578a473ee6bcfe555309db3635a26172823851e510387fee5e6473c74.exe	83
PID 1300 wrote to memory of 1880	1300	58aa156578a473ee6bcfe555309db3635a26172823851e510387fee5e6473c74.exe	83
PID 1300 wrote to memory of 1880	1300	58aa156578a473ee6bcfe555309db3635a26172823851e510387fee5e6473c74.exe	83
PID 1880 wrote to memory of 2560	1880	RVN.exe	85
PID 1880 wrote to memory of 2560	1880	RVN.exe	85
PID 1880 wrote to memory of 2560	1880	RVN.exe	85
PID 3092 wrote to memory of 4352	3092	TXPlatforn.exe	86
PID 3092 wrote to memory of 4352	3092	TXPlatforn.exe	86
PID 3092 wrote to memory of 4352	3092	TXPlatforn.exe	86
PID 1300 wrote to memory of 1036	1300	58aa156578a473ee6bcfe555309db3635a26172823851e510387fee5e6473c74.exe	87
PID 1300 wrote to memory of 1036	1300	58aa156578a473ee6bcfe555309db3635a26172823851e510387fee5e6473c74.exe	87
PID 1300 wrote to memory of 1036	1300	58aa156578a473ee6bcfe555309db3635a26172823851e510387fee5e6473c74.exe	87
PID 2560 wrote to memory of 2148	2560	cmd.exe	90
PID 2560 wrote to memory of 2148	2560	cmd.exe	90
PID 2560 wrote to memory of 2148	2560	cmd.exe	90

C:\Users\Admin\AppData\Local\Temp\58aa156578a473ee6bcfe555309db3635a26172823851e510387fee5e6473c74.exe
"C:\Users\Admin\AppData\Local\Temp\58aa156578a473ee6bcfe555309db3635a26172823851e510387fee5e6473c74.exe"
1⤵
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1300
- 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:1880
- - 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:2560
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:2148
- C:\Users\Admin\AppData\Local\Temp\HD_58aa156578a473ee6bcfe555309db3635a26172823851e510387fee5e6473c74.exe
  C:\Users\Admin\AppData\Local\Temp\HD_58aa156578a473ee6bcfe555309db3635a26172823851e510387fee5e6473c74.exe
  2⤵
  - Executes dropped EXE
  PID:1036

C:\Windows\SysWOW64\TXPlatforn.exe
C:\Windows\SysWOW64\TXPlatforn.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3092
- 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:4352

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_58aa156578a473ee6bcfe555309db3635a26172823851e510387fee5e6473c74.exe

Path C:\Users\Admin\AppData\Local\Temp\HD_58aa156578a473ee6bcfe555309db3635a26172823851e510387fee5e6473c74.exe
Size 3.1MB
SHA256 f130b3789962d5c8b59aa250d6f26ad5945928f3905b32bf65aa7bd30348a794
MD5 fb083acd60fe5c3156dc25442be815e3
SHA1 61df59b8f3ebd8b3d29ca3aedc4995e23cacf6d8
SHA512 7147337d2c1006bb15cfa967c9eea6826b63c8d343f866e7454d7368d25019f39e52cf179500810834244c3ca9644d6c0df0b2c3128a9051e9ee6b428fa926f6
SSDEEP 49152:0bXsPNIULkmp1/j6AeXZG7wmpvGF1IP9z5WuHC4O8b8ITDnl27PLhp:0bXsPN5kiQaZ56
MD5 SHA1 SHA512 SSDEEP

Submit Download

HD_X.dat

Path C:\Users\Admin\AppData\Local\Temp\HD_X.dat
Size 1.4MB
SHA256 216295c4362736dd29552246bc0f383b2da74a9e0f5215e45fb62e9decf57310
MD5 754e76905abf8033627da2293eaccd30
SHA1 1370f4874474a01d5b3482faacd4612c95290afa
SHA512 b46951c880ca9e1ff0a0acdc8278c8ce95e568bd5f9a71b7f83f906c518f0fe5c96eb4d3763573ef7f01fcbf778f38f8fd49ef41e4d0c7b42d825bae3036416b
SSDEEP 24576:709tv9/7JtDElDEExIko2H2HESq2eWJ6MQjySjy+a6r2v:709XJt4HIN2H2tFvduySPk
MD5 SHA1 SHA512 SSDEEP

Submit Download

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/1880-4-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/1880-6-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/1880-10-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/1880-7-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3092-15-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3092-17-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3092-16-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3092-24-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3092-13-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4352-21-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4352-34-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4352-46-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4352-29-0x0000000010000000-0x00000000101B6000-memory.dmp

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