gh0strat | 55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea

Analysis

max time kernel
150s
max time network
16s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
26-09-2024 17:48

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General

Target

55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea.exe
Size

1.7MB
MD5

85537b02c115fbe3a20477c234b2069e
SHA1

305a0bd22027504d49dd9e0cbb8976597a8a0815
SHA256

55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea
SHA512

6f5d2e96aef236999a8f8d717439c34e217e3bc52a84d3fd42354916e5d2a5acab4afac08c224cd08ba546ce9162975aa1eab08e3e2c0559bbe5cc4cad8b4cde
SSDEEP

24576:009tv9/7JtDElDEExIko2H2HESq2eWJ6MQjySjy+Y5/mdD07mZn:009XJt4HIN2H2tFvduySC5/mkm

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 9 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/2912-9-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2912-13-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2912-8-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1900-19-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1900-30-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2188-29-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2188-33-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2188-40-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2188-41-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 9 IoCs

resource	yara_rule
behavioral1/memory/2912-9-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2912-13-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2912-8-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1900-19-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1900-30-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2188-29-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2188-33-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2188-40-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2188-41-0x0000000010000000-0x00000000101B6000-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
2912	RVN.exe
1900	TXPlatforn.exe
2188	TXPlatforn.exe
2736	HD_55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea.exe

Loads dropped DLL 8 IoCs

pid	Process
2412	55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea.exe
1900	TXPlatforn.exe
2412	55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea.exe
2752	WerFault.exe
2752	WerFault.exe
2752	WerFault.exe
2752	WerFault.exe
2752	WerFault.exe

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

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2912-9-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2912-13-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2912-6-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2912-8-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1900-19-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1900-30-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2188-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2188-33-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2188-40-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2188-41-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe	55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea.exe
File created	C:\Program Files (x86)\Google\Chrome\Application\chrome.exe	55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2752	2736	WerFault.exe	34

System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RVN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TXPlatforn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HD_55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2160	cmd.exe
2172	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2172	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2412	55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2188	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2912	RVN.exe
Token: SeLoadDriverPrivilege	2188	TXPlatforn.exe
Token: 33	2188	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2188	TXPlatforn.exe
Token: 33	2188	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2188	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2412	55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea.exe
2412	55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2412 wrote to memory of 2912	2412	55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea.exe	29
PID 2412 wrote to memory of 2912	2412	55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea.exe	29
PID 2412 wrote to memory of 2912	2412	55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea.exe	29
PID 2412 wrote to memory of 2912	2412	55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea.exe	29
PID 2412 wrote to memory of 2912	2412	55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea.exe	29
PID 2412 wrote to memory of 2912	2412	55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea.exe	29
PID 2412 wrote to memory of 2912	2412	55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea.exe	29
PID 2912 wrote to memory of 2160	2912	RVN.exe	31
PID 2912 wrote to memory of 2160	2912	RVN.exe	31
PID 2912 wrote to memory of 2160	2912	RVN.exe	31
PID 2912 wrote to memory of 2160	2912	RVN.exe	31
PID 1900 wrote to memory of 2188	1900	TXPlatforn.exe	32
PID 1900 wrote to memory of 2188	1900	TXPlatforn.exe	32
PID 1900 wrote to memory of 2188	1900	TXPlatforn.exe	32
PID 1900 wrote to memory of 2188	1900	TXPlatforn.exe	32
PID 1900 wrote to memory of 2188	1900	TXPlatforn.exe	32
PID 1900 wrote to memory of 2188	1900	TXPlatforn.exe	32
PID 1900 wrote to memory of 2188	1900	TXPlatforn.exe	32
PID 2412 wrote to memory of 2736	2412	55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea.exe	34
PID 2412 wrote to memory of 2736	2412	55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea.exe	34
PID 2412 wrote to memory of 2736	2412	55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea.exe	34
PID 2412 wrote to memory of 2736	2412	55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea.exe	34
PID 2160 wrote to memory of 2172	2160	cmd.exe	35
PID 2160 wrote to memory of 2172	2160	cmd.exe	35
PID 2160 wrote to memory of 2172	2160	cmd.exe	35
PID 2160 wrote to memory of 2172	2160	cmd.exe	35
PID 2736 wrote to memory of 2752	2736	HD_55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea.exe	36
PID 2736 wrote to memory of 2752	2736	HD_55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea.exe	36
PID 2736 wrote to memory of 2752	2736	HD_55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea.exe	36
PID 2736 wrote to memory of 2752	2736	HD_55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea.exe	36

C:\Users\Admin\AppData\Local\Temp\55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea.exe
"C:\Users\Admin\AppData\Local\Temp\55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2412
- 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
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2912
- - 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⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:2160
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:2172
- C:\Users\Admin\AppData\Local\Temp\HD_55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea.exe
  C:\Users\Admin\AppData\Local\Temp\HD_55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2736
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2736 -s 536
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:2752

C:\Windows\SysWOW64\TXPlatforn.exe
C:\Windows\SysWOW64\TXPlatforn.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1900
- 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:2188

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

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\HD_55bb20dbbfe9bf4c159a2995a3caf19f28c2a29b5c54871d4451018b622875ea.exe

Filesize
328KB

MD5
0e6aca7bfea61f86e95dffd8ea267b6b

SHA1
fca379c85ccbd2f1ebd9158f0f093472fb913a25

SHA256
e93209abc897a1184585f90def4f73cc92273e44cf96392903baac5347aa49e6

SHA512
ac8e3a4315dbc9abc1a8719a1457565813f36d3c6ca146b0eed8553f17c7e4d45533abb68d3df973c75fc5ea836aab486b896f9d0bb39cca370702c88cd4b39d

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

Filesize
1.4MB

MD5
ef6dffedd58a91c6d771329b59750eae

SHA1
fd40b7f036321fa8c33292be7fdaa61fdad4c90d

SHA256
ddd6d1fa5f65a430320d7782cc6234ae13b5c16df39bcade8055e4da88b43640

SHA512
a710138c50380d533c1510e71aabf9216bada60a018ff5b7165b3ea9e3b4631c7c703fc103a177012aac1cd8d549ee07b70fc881eefafdb06fc17e2164963614

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

Filesize
377KB

MD5
80ade1893dec9cab7f2e63538a464fcc

SHA1
c06614da33a65eddb506db00a124a3fc3f5be02e

SHA256
57a920389c044e3f5cf93dabff67070b4511e79779b6f874e08f92d8b0d7afbd

SHA512
fffd4f3fccb5301b3c7a5b3bd92747f31549fbd9d0803fe5d502d1bb0ef979140988718c2ee1406ed3e755790d275185e120a56cbcb5ed2eadf62b5cdbfc4cc4

Download Submit
memory/1900-19-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1900-30-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2188-41-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2188-29-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2188-33-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2188-40-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2412-0-0x0000000000400000-0x0000000000580000-memory.dmp

Filesize
1.5MB

Download
memory/2412-96-0x0000000000400000-0x0000000000580000-memory.dmp

Filesize
1.5MB

Download
memory/2736-42-0x0000000000C90000-0x0000000000CE6000-memory.dmp

Filesize
344KB

Download
memory/2912-8-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2912-6-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2912-13-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2912-9-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download