gh0strat | b1b8e5f4c7dbddbb74e19d6dabdf093610e82b0eca11a07998ba7fe67b52378f

General

Target

b1b8e5f4c7dbddbb74e19d6dabdf093610e82b0eca11a07998ba7fe67b52378f.exe
Size

756KB
MD5

d399445b035b99c4de849127250658d0
SHA1

41c15a5f765b7c9df4cdc89c42e105ee71284bf4
SHA256

b1b8e5f4c7dbddbb74e19d6dabdf093610e82b0eca11a07998ba7fe67b52378f
SHA512

72574483a3984ba7a6fcabfe8331b54b9a5f500cc625bf098507101afef8631611ca9c1eb2baf577209ed926b87e2ed6d2403603fc0f7e55b5819a734ed6c23f
SSDEEP

12288:Hi2cAro2HQVWAHkFSq2hAWJYlMUtrxlyuJVRe8yT6XvEHG+sMOr5L0G:Hi2Tro2H2HESq2eWJ6MQjySjyyvEHPsz

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/1732-10-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1732-15-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1732-11-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2736-21-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2736-30-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2804-31-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2804-29-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2804-35-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2804-36-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 9 IoCs

resource	yara_rule
behavioral1/memory/1732-10-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1732-15-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1732-11-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2736-21-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2736-30-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2804-31-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2804-29-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2804-35-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2804-36-0x0000000010000000-0x00000000101B6000-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
Gh0strat family
gh0strat
PurpleFox
PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.
rootkit trojan purplefox
Purplefox family
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 3 IoCs

pid	Process
1732	RVN.exe
2736	TXPlatforn.exe
2804	TXPlatforn.exe

Loads dropped DLL 2 IoCs

pid	Process
376	b1b8e5f4c7dbddbb74e19d6dabdf093610e82b0eca11a07998ba7fe67b52378f.exe
2736	TXPlatforn.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/1732-10-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1732-9-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1732-15-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1732-11-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2736-21-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2736-30-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2804-31-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2804-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2804-35-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2804-36-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 5 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	b1b8e5f4c7dbddbb74e19d6dabdf093610e82b0eca11a07998ba7fe67b52378f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TXPlatforn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RVN.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
2820	cmd.exe
2624	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2624	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2804	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1732	RVN.exe
Token: SeLoadDriverPrivilege	2804	TXPlatforn.exe
Token: 33	2804	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2804	TXPlatforn.exe
Token: 33	2804	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2804	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
376	b1b8e5f4c7dbddbb74e19d6dabdf093610e82b0eca11a07998ba7fe67b52378f.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 376 wrote to memory of 1732	376	b1b8e5f4c7dbddbb74e19d6dabdf093610e82b0eca11a07998ba7fe67b52378f.exe	30
PID 376 wrote to memory of 1732	376	b1b8e5f4c7dbddbb74e19d6dabdf093610e82b0eca11a07998ba7fe67b52378f.exe	30
PID 376 wrote to memory of 1732	376	b1b8e5f4c7dbddbb74e19d6dabdf093610e82b0eca11a07998ba7fe67b52378f.exe	30
PID 376 wrote to memory of 1732	376	b1b8e5f4c7dbddbb74e19d6dabdf093610e82b0eca11a07998ba7fe67b52378f.exe	30
PID 376 wrote to memory of 1732	376	b1b8e5f4c7dbddbb74e19d6dabdf093610e82b0eca11a07998ba7fe67b52378f.exe	30
PID 376 wrote to memory of 1732	376	b1b8e5f4c7dbddbb74e19d6dabdf093610e82b0eca11a07998ba7fe67b52378f.exe	30
PID 376 wrote to memory of 1732	376	b1b8e5f4c7dbddbb74e19d6dabdf093610e82b0eca11a07998ba7fe67b52378f.exe	30
PID 2736 wrote to memory of 2804	2736	TXPlatforn.exe	32
PID 2736 wrote to memory of 2804	2736	TXPlatforn.exe	32
PID 2736 wrote to memory of 2804	2736	TXPlatforn.exe	32
PID 2736 wrote to memory of 2804	2736	TXPlatforn.exe	32
PID 2736 wrote to memory of 2804	2736	TXPlatforn.exe	32
PID 2736 wrote to memory of 2804	2736	TXPlatforn.exe	32
PID 2736 wrote to memory of 2804	2736	TXPlatforn.exe	32
PID 1732 wrote to memory of 2820	1732	RVN.exe	33
PID 1732 wrote to memory of 2820	1732	RVN.exe	33
PID 1732 wrote to memory of 2820	1732	RVN.exe	33
PID 1732 wrote to memory of 2820	1732	RVN.exe	33
PID 2820 wrote to memory of 2624	2820	cmd.exe	35
PID 2820 wrote to memory of 2624	2820	cmd.exe	35
PID 2820 wrote to memory of 2624	2820	cmd.exe	35
PID 2820 wrote to memory of 2624	2820	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\b1b8e5f4c7dbddbb74e19d6dabdf093610e82b0eca11a07998ba7fe67b52378f.exe
"C:\Users\Admin\AppData\Local\Temp\b1b8e5f4c7dbddbb74e19d6dabdf093610e82b0eca11a07998ba7fe67b52378f.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:376
- 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:1732
- - 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:2820
  - - 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:2624

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:2736
- 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:2804

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 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\Desktop\DebugSubmit.exe

Filesize
1022KB

MD5
1429a184b67e07a4ab61a8f0ee8f287a

SHA1
a91d940d66ae396efb3eed4cf2a5538e725d78bf

SHA256
d9ba9ce07e71e3ea943e094928cbb86e4f91a8c15173a15342bdb38750f40559

SHA512
413b73232b2781e2c92db6e9d5952331fc0d2b53af46d173233270934ca5a17e662e37da42935a7f471ce22ce46315a9eb0dc48641963a3c7b428a6d59195c9d

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

Filesize
377KB

MD5
80ade1893dec9cab7f2e63538a464fcc

SHA1
c06614da33a65eddb506db00a124a3fc3f5be02e

SHA256
57a920389c044e3f5cf93dabff67070b4511e79779b6f874e08f92d8b0d7afbd

SHA512
fffd4f3fccb5301b3c7a5b3bd92747f31549fbd9d0803fe5d502d1bb0ef979140988718c2ee1406ed3e755790d275185e120a56cbcb5ed2eadf62b5cdbfc4cc4

Download Submit
memory/1732-10-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1732-9-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1732-15-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1732-11-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2736-21-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2736-30-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2804-31-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2804-29-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2804-35-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2804-36-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads