gh0strat | 85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7

General

Target

85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe
Size

4.8MB
MD5

50aef8bd5459dc59e6582366a34e49ad
SHA1

12099d7fb5cdea72634881850aeea9506211b9d5
SHA256

85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7
SHA512

699ce273bd425b280e2824e791e7598018f52cd96ee358a96f5d560eb4139936089651ff226ad6929d8a326a4ad8c7e6c3f3396a2b118111f4d697082f2a8698
SSDEEP

49152:N09XJt4HIN2H2tFvduySZrlbXsPNIULkmp1/j6AeXZG7wmpvGF1IP9z5WuHC4O8w:uZJt4HINy2LkZrlbXsPN5kiQaZ56

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/2696-12-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2696-8-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2696-7-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1656-18-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1656-30-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2040-35-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2040-71-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2040-32-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2040-72-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 9 IoCs

resource	yara_rule
behavioral1/memory/2696-12-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2696-8-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2696-7-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1656-18-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1656-30-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2040-35-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2040-71-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2040-32-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2040-72-0x0000000010000000-0x00000000101B6000-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
2696	RVN.exe
1656	TXPlatforn.exe
2040	TXPlatforn.exe
2196	HD_85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe

Loads dropped DLL 3 IoCs

pid	Process
2172	85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe
1656	TXPlatforn.exe
2172	85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.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/2696-5-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2696-12-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2696-8-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2696-7-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1656-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1656-30-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2040-35-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2040-71-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2040-32-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2040-72-0x0000000010000000-0x00000000101B6000-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	85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe
File created	C:\Program Files (x86)\Google\Chrome\Application\chrome.exe	85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe

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

System Information Discovery
T1082

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	85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.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_85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.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
2508	cmd.exe
2628	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2628	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2172	85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2040	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2696	RVN.exe
Token: SeLoadDriverPrivilege	2040	TXPlatforn.exe
Token: 33	2040	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2040	TXPlatforn.exe
Token: 33	2040	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2040	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2172	85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe
2172	85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2172 wrote to memory of 2696	2172	85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe	30
PID 2172 wrote to memory of 2696	2172	85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe	30
PID 2172 wrote to memory of 2696	2172	85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe	30
PID 2172 wrote to memory of 2696	2172	85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe	30
PID 2172 wrote to memory of 2696	2172	85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe	30
PID 2172 wrote to memory of 2696	2172	85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe	30
PID 2172 wrote to memory of 2696	2172	85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe	30
PID 1656 wrote to memory of 2040	1656	TXPlatforn.exe	33
PID 1656 wrote to memory of 2040	1656	TXPlatforn.exe	33
PID 1656 wrote to memory of 2040	1656	TXPlatforn.exe	33
PID 1656 wrote to memory of 2040	1656	TXPlatforn.exe	33
PID 1656 wrote to memory of 2040	1656	TXPlatforn.exe	33
PID 1656 wrote to memory of 2040	1656	TXPlatforn.exe	33
PID 1656 wrote to memory of 2040	1656	TXPlatforn.exe	33
PID 2696 wrote to memory of 2508	2696	RVN.exe	32
PID 2696 wrote to memory of 2508	2696	RVN.exe	32
PID 2696 wrote to memory of 2508	2696	RVN.exe	32
PID 2696 wrote to memory of 2508	2696	RVN.exe	32
PID 2172 wrote to memory of 2196	2172	85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe	34
PID 2172 wrote to memory of 2196	2172	85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe	34
PID 2172 wrote to memory of 2196	2172	85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe	34
PID 2172 wrote to memory of 2196	2172	85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe	34
PID 2508 wrote to memory of 2628	2508	cmd.exe	36
PID 2508 wrote to memory of 2628	2508	cmd.exe	36
PID 2508 wrote to memory of 2628	2508	cmd.exe	36
PID 2508 wrote to memory of 2628	2508	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe
"C:\Users\Admin\AppData\Local\Temp\85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.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:2172
- 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:2696
- - 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:2508
  - - 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:2628
- C:\Users\Admin\AppData\Local\Temp\HD_85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe
  C:\Users\Admin\AppData\Local\Temp\HD_85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2196

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:1656
- 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:2040

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\HD_85ab590ac093735851570fe0198dc0fa2b45d6a3b35992ba33a6885e4023f0e7.exe

Filesize
3.1MB

MD5
fb083acd60fe5c3156dc25442be815e3

SHA1
61df59b8f3ebd8b3d29ca3aedc4995e23cacf6d8

SHA256
f130b3789962d5c8b59aa250d6f26ad5945928f3905b32bf65aa7bd30348a794

SHA512
7147337d2c1006bb15cfa967c9eea6826b63c8d343f866e7454d7368d25019f39e52cf179500810834244c3ca9644d6c0df0b2c3128a9051e9ee6b428fa926f6

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

Filesize
1.7MB

MD5
e3d2eda5d3749e7d9ac5699412a7b7e1

SHA1
330561bdda417bb71805d132728e5bc8e64e7b31

SHA256
ba1b1520d8a1912a7b4fa959ea0add60516dd377aaf58caa97c27f70db10a8c6

SHA512
e436e2675e3e6b52d58542e71b6d53f15f6a3929950275fec4522670727f260600a89b2550b384efd4091f3608548f160d10d2784893b5a7ac3c21178dbdd3ca

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

Filesize
377KB

MD5
80ade1893dec9cab7f2e63538a464fcc

SHA1
c06614da33a65eddb506db00a124a3fc3f5be02e

SHA256
57a920389c044e3f5cf93dabff67070b4511e79779b6f874e08f92d8b0d7afbd

SHA512
fffd4f3fccb5301b3c7a5b3bd92747f31549fbd9d0803fe5d502d1bb0ef979140988718c2ee1406ed3e755790d275185e120a56cbcb5ed2eadf62b5cdbfc4cc4

Download Submit
memory/1656-18-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1656-30-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2040-35-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2040-71-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2040-32-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2040-72-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2696-7-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2696-8-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2696-12-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2696-5-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads