gh0strat | 8c639c39d408d4c39d23d2bd54e9e8f8c14e57158350ab369796b03bda2fc0ce

General

Target

8c639c39d408d4c39d23d2bd54e9e8f8c14e57158350ab369796b03bda2fc0ce.exe
Size

4.8MB
MD5

9c8f6fa4c4760092ee1cac9c627da07c
SHA1

d5d236c63697560a736e8e6f633b5d18aff27997
SHA256

8c639c39d408d4c39d23d2bd54e9e8f8c14e57158350ab369796b03bda2fc0ce
SHA512

62cae71662c4361605ecd3c47c1a29f1e411589b76d0fb460ff1337e7d0d36e3a5460dc4bb0909bc3a377b8b8e8360ad5c52e878914559aa4f15275ca74ca1c9
SSDEEP

49152:Q09XJt4HIN2H2tFvduySpn2ybXsPNIULkmp1/j6AeXZG7wmpvGF1IP9z5WuHC4Of:VZJt4HINy2Lkpn2ybXsPN5kiQaZ56

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 8 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/1944-7-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1944-9-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1944-8-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2084-18-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2084-27-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/372-66-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/372-69-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/372-71-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 8 IoCs

resource	yara_rule
behavioral1/memory/1944-7-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1944-9-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1944-8-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2084-18-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2084-27-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/372-66-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/372-69-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/372-71-0x0000000010000000-0x00000000101B6000-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
1944	RVN.exe
2084	TXPlatforn.exe
372	TXPlatforn.exe
2652	HD_8c639c39d408d4c39d23d2bd54e9e8f8c14e57158350ab369796b03bda2fc0ce.exe

Loads dropped DLL 3 IoCs

pid	Process
2312	8c639c39d408d4c39d23d2bd54e9e8f8c14e57158350ab369796b03bda2fc0ce.exe
2084	TXPlatforn.exe
2312	8c639c39d408d4c39d23d2bd54e9e8f8c14e57158350ab369796b03bda2fc0ce.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1944-5-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1944-7-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1944-9-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1944-8-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2084-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2084-27-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/372-66-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/372-69-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/372-71-0x0000000010000000-0x00000000101B6000-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 4 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe	8c639c39d408d4c39d23d2bd54e9e8f8c14e57158350ab369796b03bda2fc0ce.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	8c639c39d408d4c39d23d2bd54e9e8f8c14e57158350ab369796b03bda2fc0ce.exe
File created	C:\Program Files (x86)\Google\Chrome\Application\chrome.exe	8c639c39d408d4c39d23d2bd54e9e8f8c14e57158350ab369796b03bda2fc0ce.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	8c639c39d408d4c39d23d2bd54e9e8f8c14e57158350ab369796b03bda2fc0ce.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8c639c39d408d4c39d23d2bd54e9e8f8c14e57158350ab369796b03bda2fc0ce.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_8c639c39d408d4c39d23d2bd54e9e8f8c14e57158350ab369796b03bda2fc0ce.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
2100	cmd.exe
2528	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2528	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2312	8c639c39d408d4c39d23d2bd54e9e8f8c14e57158350ab369796b03bda2fc0ce.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
372	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1944	RVN.exe
Token: SeLoadDriverPrivilege	372	TXPlatforn.exe
Token: 33	372	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	372	TXPlatforn.exe
Token: 33	372	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	372	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2312	8c639c39d408d4c39d23d2bd54e9e8f8c14e57158350ab369796b03bda2fc0ce.exe
2312	8c639c39d408d4c39d23d2bd54e9e8f8c14e57158350ab369796b03bda2fc0ce.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2312 wrote to memory of 1944	2312	8c639c39d408d4c39d23d2bd54e9e8f8c14e57158350ab369796b03bda2fc0ce.exe	30
PID 2312 wrote to memory of 1944	2312	8c639c39d408d4c39d23d2bd54e9e8f8c14e57158350ab369796b03bda2fc0ce.exe	30
PID 2312 wrote to memory of 1944	2312	8c639c39d408d4c39d23d2bd54e9e8f8c14e57158350ab369796b03bda2fc0ce.exe	30
PID 2312 wrote to memory of 1944	2312	8c639c39d408d4c39d23d2bd54e9e8f8c14e57158350ab369796b03bda2fc0ce.exe	30
PID 2312 wrote to memory of 1944	2312	8c639c39d408d4c39d23d2bd54e9e8f8c14e57158350ab369796b03bda2fc0ce.exe	30
PID 2312 wrote to memory of 1944	2312	8c639c39d408d4c39d23d2bd54e9e8f8c14e57158350ab369796b03bda2fc0ce.exe	30
PID 2312 wrote to memory of 1944	2312	8c639c39d408d4c39d23d2bd54e9e8f8c14e57158350ab369796b03bda2fc0ce.exe	30
PID 1944 wrote to memory of 2100	1944	RVN.exe	32
PID 1944 wrote to memory of 2100	1944	RVN.exe	32
PID 1944 wrote to memory of 2100	1944	RVN.exe	32
PID 1944 wrote to memory of 2100	1944	RVN.exe	32
PID 2084 wrote to memory of 372	2084	TXPlatforn.exe	34
PID 2084 wrote to memory of 372	2084	TXPlatforn.exe	34
PID 2084 wrote to memory of 372	2084	TXPlatforn.exe	34
PID 2084 wrote to memory of 372	2084	TXPlatforn.exe	34
PID 2084 wrote to memory of 372	2084	TXPlatforn.exe	34
PID 2084 wrote to memory of 372	2084	TXPlatforn.exe	34
PID 2084 wrote to memory of 372	2084	TXPlatforn.exe	34
PID 2312 wrote to memory of 2652	2312	8c639c39d408d4c39d23d2bd54e9e8f8c14e57158350ab369796b03bda2fc0ce.exe	35
PID 2312 wrote to memory of 2652	2312	8c639c39d408d4c39d23d2bd54e9e8f8c14e57158350ab369796b03bda2fc0ce.exe	35
PID 2312 wrote to memory of 2652	2312	8c639c39d408d4c39d23d2bd54e9e8f8c14e57158350ab369796b03bda2fc0ce.exe	35
PID 2312 wrote to memory of 2652	2312	8c639c39d408d4c39d23d2bd54e9e8f8c14e57158350ab369796b03bda2fc0ce.exe	35
PID 2100 wrote to memory of 2528	2100	cmd.exe	36
PID 2100 wrote to memory of 2528	2100	cmd.exe	36
PID 2100 wrote to memory of 2528	2100	cmd.exe	36
PID 2100 wrote to memory of 2528	2100	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\8c639c39d408d4c39d23d2bd54e9e8f8c14e57158350ab369796b03bda2fc0ce.exe
"C:\Users\Admin\AppData\Local\Temp\8c639c39d408d4c39d23d2bd54e9e8f8c14e57158350ab369796b03bda2fc0ce.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:2312
- 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:1944
- - 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:2100
  - - 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:2528
- C:\Users\Admin\AppData\Local\Temp\HD_8c639c39d408d4c39d23d2bd54e9e8f8c14e57158350ab369796b03bda2fc0ce.exe
  C:\Users\Admin\AppData\Local\Temp\HD_8c639c39d408d4c39d23d2bd54e9e8f8c14e57158350ab369796b03bda2fc0ce.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2652

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:2084
- 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:372

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_8c639c39d408d4c39d23d2bd54e9e8f8c14e57158350ab369796b03bda2fc0ce.exe

Filesize
3.1MB

MD5
fb083acd60fe5c3156dc25442be815e3

SHA1
61df59b8f3ebd8b3d29ca3aedc4995e23cacf6d8

SHA256
f130b3789962d5c8b59aa250d6f26ad5945928f3905b32bf65aa7bd30348a794

SHA512
7147337d2c1006bb15cfa967c9eea6826b63c8d343f866e7454d7368d25019f39e52cf179500810834244c3ca9644d6c0df0b2c3128a9051e9ee6b428fa926f6

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

Filesize
1.8MB

MD5
25abdf3ffa7d38b98d0382b5959e895c

SHA1
9bc0c6433cf0924c19a613a2eb56ea7cc72d8b5f

SHA256
5120826fcbca1b746e7f559441aceeb307ffdd75fc8c813dae9bfbe4683a3014

SHA512
f1f49a6a92f356fe8197860df40ea09b3f7ff44b6bcba5b32d943c7a922da2eee684f8d571bb0e7a5d7590a93206dc28710fcaa9759e76cbf92aeaa6cb316a09

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

Filesize
377KB

MD5
80ade1893dec9cab7f2e63538a464fcc

SHA1
c06614da33a65eddb506db00a124a3fc3f5be02e

SHA256
57a920389c044e3f5cf93dabff67070b4511e79779b6f874e08f92d8b0d7afbd

SHA512
fffd4f3fccb5301b3c7a5b3bd92747f31549fbd9d0803fe5d502d1bb0ef979140988718c2ee1406ed3e755790d275185e120a56cbcb5ed2eadf62b5cdbfc4cc4

Download Submit
memory/372-66-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/372-69-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/372-71-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1944-5-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1944-7-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1944-9-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1944-8-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2084-18-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2084-27-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads