gh0strat | 498f43907d32c290b4785e8555e98e38c3ef2cf251a9c85426b5145c39820054

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
25/05/2024, 19:25

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General

Target
498f43907d32c290b4785e8555e98e38c3ef2cf251a9c85426b5145c39820054.exe
Size 4.5MB
Sample240525-x451dafd3s
SHA256 498f43907d32c290b4785e8555e98e38c3ef2cf251a9c85426b5145c39820054
MD5 eaadbe877c811940d0e20265816d69e1
SHA1 bf5cc9a8c2b4ad388968f8acd29523e93ea18b4b
SHA512 2c36cbe2555ab07fff1d16b84ed5e625131ef2bfe9e4eb16d73a5e2a6f105696c0a3c7b3f45626a12055d839e0ae77b37045bbf93e6f0548334b0d245f287292
SSDEEP 49152:Y09XJt4HIN2H2tFvduyShbXsPNIULkmp1/j6AeXZG7wmpvGF1IP9z5WuHC4O8b8R:9ZJt4HINy2LkhbXsPN5kiQaZ56
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/2724-7-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2724-10-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2724-6-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3208-15-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3208-16-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3208-19-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3208-28-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3600-27-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3600-30-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3600-38-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3600-57-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 11 IoCs

resource	yara_rule
behavioral2/memory/2724-7-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2724-10-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2724-6-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3208-15-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3208-16-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3208-19-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3208-28-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3600-27-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3600-30-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3600-38-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3600-57-0x0000000010000000-0x00000000101B6000-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
2724	RVN.exe
3208	TXPlatforn.exe
5104	HD_498f43907d32c290b4785e8555e98e38c3ef2cf251a9c85426b5145c39820054.exe
3600	TXPlatforn.exe

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2724-7-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2724-10-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2724-6-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2724-4-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3208-13-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3208-15-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3208-16-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3208-19-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3208-28-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3600-27-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3600-30-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3600-38-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3600-57-0x0000000010000000-0x00000000101B6000-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\Mozilla Firefox\firefox.exe	498f43907d32c290b4785e8555e98e38c3ef2cf251a9c85426b5145c39820054.exe
File created	C:\Program Files (x86)\Google\Chrome\Application\chrome.exe	498f43907d32c290b4785e8555e98e38c3ef2cf251a9c85426b5145c39820054.exe
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe	498f43907d32c290b4785e8555e98e38c3ef2cf251a9c85426b5145c39820054.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	498f43907d32c290b4785e8555e98e38c3ef2cf251a9c85426b5145c39820054.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	498f43907d32c290b4785e8555e98e38c3ef2cf251a9c85426b5145c39820054.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
1476	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2796	498f43907d32c290b4785e8555e98e38c3ef2cf251a9c85426b5145c39820054.exe
2796	498f43907d32c290b4785e8555e98e38c3ef2cf251a9c85426b5145c39820054.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
3600	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2724	RVN.exe
Token: SeLoadDriverPrivilege	3600	TXPlatforn.exe
Token: 33	3600	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	3600	TXPlatforn.exe
Token: 33	3600	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	3600	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2796	498f43907d32c290b4785e8555e98e38c3ef2cf251a9c85426b5145c39820054.exe
2796	498f43907d32c290b4785e8555e98e38c3ef2cf251a9c85426b5145c39820054.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2796 wrote to memory of 2724	2796	498f43907d32c290b4785e8555e98e38c3ef2cf251a9c85426b5145c39820054.exe	82
PID 2796 wrote to memory of 2724	2796	498f43907d32c290b4785e8555e98e38c3ef2cf251a9c85426b5145c39820054.exe	82
PID 2796 wrote to memory of 2724	2796	498f43907d32c290b4785e8555e98e38c3ef2cf251a9c85426b5145c39820054.exe	82
PID 2724 wrote to memory of 4792	2724	RVN.exe	84
PID 2724 wrote to memory of 4792	2724	RVN.exe	84
PID 2724 wrote to memory of 4792	2724	RVN.exe	84
PID 2796 wrote to memory of 5104	2796	498f43907d32c290b4785e8555e98e38c3ef2cf251a9c85426b5145c39820054.exe	85
PID 2796 wrote to memory of 5104	2796	498f43907d32c290b4785e8555e98e38c3ef2cf251a9c85426b5145c39820054.exe	85
PID 2796 wrote to memory of 5104	2796	498f43907d32c290b4785e8555e98e38c3ef2cf251a9c85426b5145c39820054.exe	85
PID 3208 wrote to memory of 3600	3208	TXPlatforn.exe	86
PID 3208 wrote to memory of 3600	3208	TXPlatforn.exe	86
PID 3208 wrote to memory of 3600	3208	TXPlatforn.exe	86
PID 4792 wrote to memory of 1476	4792	cmd.exe	88
PID 4792 wrote to memory of 1476	4792	cmd.exe	88
PID 4792 wrote to memory of 1476	4792	cmd.exe	88

C:\Users\Admin\AppData\Local\Temp\498f43907d32c290b4785e8555e98e38c3ef2cf251a9c85426b5145c39820054.exe
"C:\Users\Admin\AppData\Local\Temp\498f43907d32c290b4785e8555e98e38c3ef2cf251a9c85426b5145c39820054.exe"
1⤵
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2796
- 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:2724
- - 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:4792
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:1476
- C:\Users\Admin\AppData\Local\Temp\HD_498f43907d32c290b4785e8555e98e38c3ef2cf251a9c85426b5145c39820054.exe
  C:\Users\Admin\AppData\Local\Temp\HD_498f43907d32c290b4785e8555e98e38c3ef2cf251a9c85426b5145c39820054.exe
  2⤵
  - Executes dropped EXE
  PID:5104

C:\Windows\SysWOW64\TXPlatforn.exe
C:\Windows\SysWOW64\TXPlatforn.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3208
- 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:3600

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_498f43907d32c290b4785e8555e98e38c3ef2cf251a9c85426b5145c39820054.exe

Path C:\Users\Admin\AppData\Local\Temp\HD_498f43907d32c290b4785e8555e98e38c3ef2cf251a9c85426b5145c39820054.exe
Size 3.1MB
SHA256 f130b3789962d5c8b59aa250d6f26ad5945928f3905b32bf65aa7bd30348a794
MD5 fb083acd60fe5c3156dc25442be815e3
SHA1 61df59b8f3ebd8b3d29ca3aedc4995e23cacf6d8
SHA512 7147337d2c1006bb15cfa967c9eea6826b63c8d343f866e7454d7368d25019f39e52cf179500810834244c3ca9644d6c0df0b2c3128a9051e9ee6b428fa926f6
SSDEEP 49152:0bXsPNIULkmp1/j6AeXZG7wmpvGF1IP9z5WuHC4O8b8ITDnl27PLhp:0bXsPN5kiQaZ56
MD5 SHA1 SHA512 SSDEEP

Submit Download

RCX3808.tmp

Path C:\Users\Admin\AppData\Local\Temp\RCX3808.tmp
Size 1.4MB
SHA256 39de9839b8f899e9c312abd528a3d3b40191f9243c9563a3f114538feeb48379
MD5 80f7c98a2acd84eb583936b463424263
SHA1 a46ea57bdf8acef0f151463d8fe698de799426b4
SHA512 22e3cc7a9046cb1759158fb86fe9b3560a4e4cefce735526e2edf6cdba876085da202d3268b1bfc98deb7178c3a1570577e0c0fb247d174d5e20f25a2d7fceb2
SSDEEP 24576:Y09tv9/7JtDElDEExIko2H2HESq2eWJ6MQjySjy+9:Y09XJt4HIN2H2tFvduyS7
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/2724-7-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2724-10-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2724-6-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2724-4-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3208-19-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3208-16-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3208-15-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3208-28-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3208-13-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3600-27-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3600-30-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3600-38-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3600-57-0x0000000010000000-0x00000000101B6000-memory.dmp

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