gh0strat | 871b52a8e48e2524bd694e46d7df72dc41453f023542df4ab27f1069a423b243

Analysis

max time kernel
152s
max time network
19s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20/09/2024, 07:58

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General

Target

871b52a8e48e2524bd694e46d7df72dc41453f023542df4ab27f1069a423b243.exe
Size

2.3MB
MD5

b13d48dd704fd9f376c67503c73aa6af
SHA1

927ca3f2f5833e0870701f64496979789b55b08f
SHA256

871b52a8e48e2524bd694e46d7df72dc41453f023542df4ab27f1069a423b243
SHA512

bdf05ad96754664c89b8896be5208dde54544354ef85712cfbd6a2551c3dafd7384abcdf7b66526f3dc09434782fa512f86f6e233da2e31c30c03f67a3c93ba4
SSDEEP

49152:lQZAdVyVT9n/Gg0P+Whow3tGa9nsHyjtk2MYC5GDJZ1:+GdVyVT9nOgmhV3tGa9nsmtk2aWZ1

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/660-9-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/660-8-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/660-7-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1980-26-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2848-34-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1980-36-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2848-38-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2848-40-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 9 IoCs

resource	yara_rule
behavioral1/memory/660-9-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/660-8-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/660-7-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/files/0x0007000000018bbf-20.dat	family_gh0strat
behavioral1/memory/1980-26-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2848-34-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1980-36-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2848-38-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2848-40-0x0000000010000000-0x00000000101B6000-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

Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs

persistence

Terminal Services DLL

T1505.005

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Ö÷¶¯·ÀÓù·þÎñÄ£¿é\Parameters\ServiceDll = "C:\\Windows\\system32\\259633883.txt"	svchos.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 5 IoCs

pid	Process
660	svchost.exe
2216	svchos.exe
1980	TXPlatforn.exe
2848	TXPlatforn.exe
1800	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

Loads dropped DLL 7 IoCs

pid	Process
2436	871b52a8e48e2524bd694e46d7df72dc41453f023542df4ab27f1069a423b243.exe
2436	871b52a8e48e2524bd694e46d7df72dc41453f023542df4ab27f1069a423b243.exe
2216	svchos.exe
1980	TXPlatforn.exe
2904	svchost.exe
2904	svchost.exe
1800	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/660-5-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/660-9-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/660-8-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/660-7-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1980-26-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2848-34-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1980-36-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2848-38-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2848-40-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\TXPlatforn.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\TXPlatforn.exe	svchost.exe
File created	C:\Windows\SysWOW64\259633883.txt	svchos.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	svchos.exe
File created	C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe	svchost.exe

System Location Discovery: System Language Discovery 1 TTPs 8 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	svchos.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TXPlatforn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	871b52a8e48e2524bd694e46d7df72dc41453f023542df4ab27f1069a423b243.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
2596	cmd.exe
2800	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2800	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2848	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	660	svchost.exe
Token: SeLoadDriverPrivilege	2848	TXPlatforn.exe
Token: 33	2848	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2848	TXPlatforn.exe
Token: 33	2848	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2848	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2436	871b52a8e48e2524bd694e46d7df72dc41453f023542df4ab27f1069a423b243.exe
2436	871b52a8e48e2524bd694e46d7df72dc41453f023542df4ab27f1069a423b243.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2436 wrote to memory of 660	2436	871b52a8e48e2524bd694e46d7df72dc41453f023542df4ab27f1069a423b243.exe	29
PID 2436 wrote to memory of 660	2436	871b52a8e48e2524bd694e46d7df72dc41453f023542df4ab27f1069a423b243.exe	29
PID 2436 wrote to memory of 660	2436	871b52a8e48e2524bd694e46d7df72dc41453f023542df4ab27f1069a423b243.exe	29
PID 2436 wrote to memory of 660	2436	871b52a8e48e2524bd694e46d7df72dc41453f023542df4ab27f1069a423b243.exe	29
PID 2436 wrote to memory of 660	2436	871b52a8e48e2524bd694e46d7df72dc41453f023542df4ab27f1069a423b243.exe	29
PID 2436 wrote to memory of 660	2436	871b52a8e48e2524bd694e46d7df72dc41453f023542df4ab27f1069a423b243.exe	29
PID 2436 wrote to memory of 660	2436	871b52a8e48e2524bd694e46d7df72dc41453f023542df4ab27f1069a423b243.exe	29
PID 2436 wrote to memory of 2216	2436	871b52a8e48e2524bd694e46d7df72dc41453f023542df4ab27f1069a423b243.exe	30
PID 2436 wrote to memory of 2216	2436	871b52a8e48e2524bd694e46d7df72dc41453f023542df4ab27f1069a423b243.exe	30
PID 2436 wrote to memory of 2216	2436	871b52a8e48e2524bd694e46d7df72dc41453f023542df4ab27f1069a423b243.exe	30
PID 2436 wrote to memory of 2216	2436	871b52a8e48e2524bd694e46d7df72dc41453f023542df4ab27f1069a423b243.exe	30
PID 1980 wrote to memory of 2848	1980	TXPlatforn.exe	32
PID 1980 wrote to memory of 2848	1980	TXPlatforn.exe	32
PID 1980 wrote to memory of 2848	1980	TXPlatforn.exe	32
PID 1980 wrote to memory of 2848	1980	TXPlatforn.exe	32
PID 1980 wrote to memory of 2848	1980	TXPlatforn.exe	32
PID 1980 wrote to memory of 2848	1980	TXPlatforn.exe	32
PID 1980 wrote to memory of 2848	1980	TXPlatforn.exe	32
PID 660 wrote to memory of 2596	660	svchost.exe	33
PID 660 wrote to memory of 2596	660	svchost.exe	33
PID 660 wrote to memory of 2596	660	svchost.exe	33
PID 660 wrote to memory of 2596	660	svchost.exe	33
PID 2596 wrote to memory of 2800	2596	cmd.exe	37
PID 2596 wrote to memory of 2800	2596	cmd.exe	37
PID 2596 wrote to memory of 2800	2596	cmd.exe	37
PID 2596 wrote to memory of 2800	2596	cmd.exe	37
PID 2904 wrote to memory of 1800	2904	svchost.exe	38
PID 2904 wrote to memory of 1800	2904	svchost.exe	38
PID 2904 wrote to memory of 1800	2904	svchost.exe	38
PID 2904 wrote to memory of 1800	2904	svchost.exe	38

C:\Users\Admin\AppData\Local\Temp\871b52a8e48e2524bd694e46d7df72dc41453f023542df4ab27f1069a423b243.exe
"C:\Users\Admin\AppData\Local\Temp\871b52a8e48e2524bd694e46d7df72dc41453f023542df4ab27f1069a423b243.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2436
- C:\Users\Admin\AppData\Local\Temp\svchost.exe
  C:\Users\Admin\AppData\Local\Temp\\svchost.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:660
- - 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\svchost.exe > nul
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:2596
  - - 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:2800
- C:\Users\Admin\AppData\Local\Temp\svchos.exe
  C:\Users\Admin\AppData\Local\Temp\\svchos.exe
  2⤵
  - Server Software Component: Terminal Services DLL
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  PID:2216

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:1980
- 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:2848

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
1⤵
PID:2860

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2904
- C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
  C:\Windows\system32\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe "c:\windows\system32\259633883.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:1800

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

Server Software Component

T1505

Terminal Services DLL

T1505.005

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 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

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Downloads

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

Filesize
377KB

MD5
a4329177954d4104005bce3020e5ef59

SHA1
23c29e295e2dbb8454012d619ca3f81e4c16e85a

SHA256
6156d003d54dcf2ee92f21bd6e7a6a7f91730bd2804381260bcabe465abe6ddd

SHA512
81e9d456a4abfc7cd9e0943d4a0ce15523362c3179f3368381d1d7974f80a9f9113b5404b96e67e91684e0ea1895b7d0073e4c48d0bfc4fd0244b1af6acf0208

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

Filesize
93KB

MD5
3b377ad877a942ec9f60ea285f7119a2

SHA1
60b23987b20d913982f723ab375eef50fafa6c70

SHA256
62954fdf65e629b39a29f539619d20691332184c6b6be5a826128a8e759bfa84

SHA512
af3a71f867ad9d28772c48b521097f9bf8931eb89fd2974e8de10990241419a39ddc3c0b36dd38aac4fdf14e1f0c5e228692618e93adce958d5b5dab8940e46f

Download Submit
\Windows\SysWOW64\259633883.txt

Filesize
50KB

MD5
d73bcf13fdd06b1ce982196e835da234

SHA1
7f07840097c0bd981af51cc81840c7e622117179

SHA256
83d173d74a2bc38efade6212285d8c7cfbf00111bdf2ad4a1207002bd3b7667b

SHA512
0ff6d6d8ee837a5c2d21b806ee24142c86c8a3f263d2ccb29707cb00c943c14a197463cc275d539b717735196606f2690fede0e86e1d328f9e0dd0d411fdf7d6

Download Submit
\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/660-8-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/660-7-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/660-9-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/660-5-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1980-26-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1980-36-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2848-34-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2848-38-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2848-40-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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