gh0strat | cbfb5692399084c8c577ebcaaeb23573abad57cd543a2c16e69159cd9e239645

Analysis

max time kernel
150s
max time network
121s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
08/07/2024, 12:05

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General

Target

cbfb5692399084c8c577ebcaaeb23573abad57cd543a2c16e69159cd9e239645.exe
Size

4.8MB
MD5

ca9568a4721b4b4935a3ee24fcce5a02
SHA1

a6d20cb2399e9c7fbf967125420d23ef085f58e3
SHA256

cbfb5692399084c8c577ebcaaeb23573abad57cd543a2c16e69159cd9e239645
SHA512

a40c9134763ced3b9bf8097780cee239d82d7f7ac3a10916a547781a1341db5a913ac7513f523a91bf00a5802cea0305c682779d0a2e7320d0c32b1dc18dde12
SSDEEP

49152:cQZAdVyVT9n/Gg0P+WhoSvfKsbXsPNIULkmp1/j6AeXZG7wmpvGF1IP9z5WuHC4Q:dGdVyVT9nOgmhOsbXsPN5kiQaZ56

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 8 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/1824-7-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1824-12-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1824-8-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2656-18-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2656-27-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2720-35-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2720-42-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2720-54-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 9 IoCs

resource	yara_rule
behavioral1/memory/1824-7-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1824-12-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1824-8-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2656-18-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2656-27-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/files/0x0006000000019255-33.dat	family_gh0strat
behavioral1/memory/2720-35-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2720-42-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2720-54-0x0000000010000000-0x00000000101B6000-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\\259449974.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 6 IoCs

pid	Process
1824	svchost.exe
2656	TXPlatforn.exe
2852	svchos.exe
2720	TXPlatforn.exe
2560	HD_cbfb5692399084c8c577ebcaaeb23573abad57cd543a2c16e69159cd9e239645.exe
1352	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

Loads dropped DLL 8 IoCs

pid	Process
2312	cbfb5692399084c8c577ebcaaeb23573abad57cd543a2c16e69159cd9e239645.exe
2312	cbfb5692399084c8c577ebcaaeb23573abad57cd543a2c16e69159cd9e239645.exe
2656	TXPlatforn.exe
2852	svchos.exe
3060	svchost.exe
2312	cbfb5692399084c8c577ebcaaeb23573abad57cd543a2c16e69159cd9e239645.exe
3060	svchost.exe
1352	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/1824-5-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1824-7-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1824-12-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1824-8-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2656-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2656-27-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2720-35-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2720-42-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2720-54-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\259449974.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
File created	C:\Windows\SysWOW64\TXPlatforn.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\TXPlatforn.exe	svchost.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Google\Chrome\Application\chrome.exe	cbfb5692399084c8c577ebcaaeb23573abad57cd543a2c16e69159cd9e239645.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	cbfb5692399084c8c577ebcaaeb23573abad57cd543a2c16e69159cd9e239645.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe	cbfb5692399084c8c577ebcaaeb23573abad57cd543a2c16e69159cd9e239645.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	cbfb5692399084c8c577ebcaaeb23573abad57cd543a2c16e69159cd9e239645.exe

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

System Information Discovery
T1082

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2880	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2312	cbfb5692399084c8c577ebcaaeb23573abad57cd543a2c16e69159cd9e239645.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2720	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1824	svchost.exe
Token: SeLoadDriverPrivilege	2720	TXPlatforn.exe
Token: 33	2720	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2720	TXPlatforn.exe
Token: 33	2720	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2720	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2312	cbfb5692399084c8c577ebcaaeb23573abad57cd543a2c16e69159cd9e239645.exe
2312	cbfb5692399084c8c577ebcaaeb23573abad57cd543a2c16e69159cd9e239645.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 2312 wrote to memory of 1824	2312	cbfb5692399084c8c577ebcaaeb23573abad57cd543a2c16e69159cd9e239645.exe	31
PID 2312 wrote to memory of 1824	2312	cbfb5692399084c8c577ebcaaeb23573abad57cd543a2c16e69159cd9e239645.exe	31
PID 2312 wrote to memory of 1824	2312	cbfb5692399084c8c577ebcaaeb23573abad57cd543a2c16e69159cd9e239645.exe	31
PID 2312 wrote to memory of 1824	2312	cbfb5692399084c8c577ebcaaeb23573abad57cd543a2c16e69159cd9e239645.exe	31
PID 2312 wrote to memory of 1824	2312	cbfb5692399084c8c577ebcaaeb23573abad57cd543a2c16e69159cd9e239645.exe	31
PID 2312 wrote to memory of 1824	2312	cbfb5692399084c8c577ebcaaeb23573abad57cd543a2c16e69159cd9e239645.exe	31
PID 2312 wrote to memory of 1824	2312	cbfb5692399084c8c577ebcaaeb23573abad57cd543a2c16e69159cd9e239645.exe	31
PID 1824 wrote to memory of 2712	1824	svchost.exe	33
PID 1824 wrote to memory of 2712	1824	svchost.exe	33
PID 1824 wrote to memory of 2712	1824	svchost.exe	33
PID 1824 wrote to memory of 2712	1824	svchost.exe	33
PID 2312 wrote to memory of 2852	2312	cbfb5692399084c8c577ebcaaeb23573abad57cd543a2c16e69159cd9e239645.exe	35
PID 2312 wrote to memory of 2852	2312	cbfb5692399084c8c577ebcaaeb23573abad57cd543a2c16e69159cd9e239645.exe	35
PID 2312 wrote to memory of 2852	2312	cbfb5692399084c8c577ebcaaeb23573abad57cd543a2c16e69159cd9e239645.exe	35
PID 2312 wrote to memory of 2852	2312	cbfb5692399084c8c577ebcaaeb23573abad57cd543a2c16e69159cd9e239645.exe	35
PID 2656 wrote to memory of 2720	2656	TXPlatforn.exe	36
PID 2656 wrote to memory of 2720	2656	TXPlatforn.exe	36
PID 2656 wrote to memory of 2720	2656	TXPlatforn.exe	36
PID 2656 wrote to memory of 2720	2656	TXPlatforn.exe	36
PID 2656 wrote to memory of 2720	2656	TXPlatforn.exe	36
PID 2656 wrote to memory of 2720	2656	TXPlatforn.exe	36
PID 2656 wrote to memory of 2720	2656	TXPlatforn.exe	36
PID 2712 wrote to memory of 2880	2712	cmd.exe	38
PID 2712 wrote to memory of 2880	2712	cmd.exe	38
PID 2712 wrote to memory of 2880	2712	cmd.exe	38
PID 2712 wrote to memory of 2880	2712	cmd.exe	38
PID 2312 wrote to memory of 2560	2312	cbfb5692399084c8c577ebcaaeb23573abad57cd543a2c16e69159cd9e239645.exe	40
PID 2312 wrote to memory of 2560	2312	cbfb5692399084c8c577ebcaaeb23573abad57cd543a2c16e69159cd9e239645.exe	40
PID 2312 wrote to memory of 2560	2312	cbfb5692399084c8c577ebcaaeb23573abad57cd543a2c16e69159cd9e239645.exe	40
PID 2312 wrote to memory of 2560	2312	cbfb5692399084c8c577ebcaaeb23573abad57cd543a2c16e69159cd9e239645.exe	40
PID 3060 wrote to memory of 1352	3060	svchost.exe	42
PID 3060 wrote to memory of 1352	3060	svchost.exe	42
PID 3060 wrote to memory of 1352	3060	svchost.exe	42
PID 3060 wrote to memory of 1352	3060	svchost.exe	42

C:\Users\Admin\AppData\Local\Temp\cbfb5692399084c8c577ebcaaeb23573abad57cd543a2c16e69159cd9e239645.exe
"C:\Users\Admin\AppData\Local\Temp\cbfb5692399084c8c577ebcaaeb23573abad57cd543a2c16e69159cd9e239645.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2312
- 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
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1824
- - 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⤵
    - Suspicious use of WriteProcessMemory
    PID:2712
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:2880
- 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
  PID:2852
- C:\Users\Admin\AppData\Local\Temp\HD_cbfb5692399084c8c577ebcaaeb23573abad57cd543a2c16e69159cd9e239645.exe
  C:\Users\Admin\AppData\Local\Temp\HD_cbfb5692399084c8c577ebcaaeb23573abad57cd543a2c16e69159cd9e239645.exe
  2⤵
  - Executes dropped EXE
  PID:2560

C:\Windows\SysWOW64\TXPlatforn.exe
C:\Windows\SysWOW64\TXPlatforn.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2656
- 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:2720

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
1⤵
PID:2176

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:3060
- C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
  C:\Windows\system32\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe "c:\windows\system32\259449974.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:1352

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 Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
1.8MB

MD5
a3bb48e404439891ded83db23571d251

SHA1
ad0c78d25af545091493a749436cdfb66ef8d82a

SHA256
7623b24f8e55d3c3bbfe4dad24221108de4f8c63eca8193cb5326a1aca1e065d

SHA512
c68ac5c7ae7197137c454baa657d60aa916787247dffe620a08fd9ca0e2538c1b42661b22cb84e58d364e26b1885127ef933c57041478a54f3cabdee93baf6bf

Download Submit
\Users\Admin\AppData\Local\Temp\HD_cbfb5692399084c8c577ebcaaeb23573abad57cd543a2c16e69159cd9e239645.exe

Filesize
3.1MB

MD5
fb083acd60fe5c3156dc25442be815e3

SHA1
61df59b8f3ebd8b3d29ca3aedc4995e23cacf6d8

SHA256
f130b3789962d5c8b59aa250d6f26ad5945928f3905b32bf65aa7bd30348a794

SHA512
7147337d2c1006bb15cfa967c9eea6826b63c8d343f866e7454d7368d25019f39e52cf179500810834244c3ca9644d6c0df0b2c3128a9051e9ee6b428fa926f6

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

Filesize
93KB

MD5
3b377ad877a942ec9f60ea285f7119a2

SHA1
60b23987b20d913982f723ab375eef50fafa6c70

SHA256
62954fdf65e629b39a29f539619d20691332184c6b6be5a826128a8e759bfa84

SHA512
af3a71f867ad9d28772c48b521097f9bf8931eb89fd2974e8de10990241419a39ddc3c0b36dd38aac4fdf14e1f0c5e228692618e93adce958d5b5dab8940e46f

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

Filesize
377KB

MD5
a4329177954d4104005bce3020e5ef59

SHA1
23c29e295e2dbb8454012d619ca3f81e4c16e85a

SHA256
6156d003d54dcf2ee92f21bd6e7a6a7f91730bd2804381260bcabe465abe6ddd

SHA512
81e9d456a4abfc7cd9e0943d4a0ce15523362c3179f3368381d1d7974f80a9f9113b5404b96e67e91684e0ea1895b7d0073e4c48d0bfc4fd0244b1af6acf0208

Download Submit
\Windows\SysWOW64\259449974.txt

Filesize
50KB

MD5
f3ebf8f7b6eed439663aada11c4ccda8

SHA1
03c0a41982d82d56cb0e27f8397590ce5aa1ef6c

SHA256
b81f46856a7e02b658631a792b2253df758fc032db0165f287603f97b57ad0a1

SHA512
8fb500288a4303c85e1b0a9223b442b0a2c36f061bd03310a5a6e8ddf67e522d696e61dd0f8f4902c88e1adf0e5bd18415779ca0675b896fa39ce23733c9b6e3

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

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/1824-12-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1824-8-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1824-7-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1824-5-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2656-27-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2656-18-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2720-35-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2720-42-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2720-54-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download