gh0strat | acd8532f6e98e5ab14048e76edeb10c9a2d008044ab9b25c62d18ba733e7abd8

Analysis

max time kernel
150s
max time network
122s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
22-08-2024 05:31

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General

Target

acd8532f6e98e5ab14048e76edeb10c9a2d008044ab9b25c62d18ba733e7abd8.exe
Size

2.3MB
MD5

aa4cad457fde76310994b2f72b6cc276
SHA1

15378ce214a96f898cd7301b2b9332b2a2aab9ff
SHA256

acd8532f6e98e5ab14048e76edeb10c9a2d008044ab9b25c62d18ba733e7abd8
SHA512

76d6f3437cf8e8acd3cd671180d876ca6d3dbf83723df764b6b577eb83e8b4c072f024a35c5ed6eb4f17e6cfe611f005715bd9312474f5fb2939a5b7e173472c
SSDEEP

49152:zQZAdVyVT9n/Gg0P+WhoOZPItx2apeapelI:0GdVyVT9nOgmhotUvlI

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/2072-12-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2072-7-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2072-8-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2304-18-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2304-30-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2684-35-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2684-39-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2684-51-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 9 IoCs

resource	yara_rule
behavioral1/memory/2072-12-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2072-7-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2072-8-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2304-18-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2304-30-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/files/0x0007000000016ce0-33.dat	family_gh0strat
behavioral1/memory/2684-35-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2684-39-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2684-51-0x0000000010000000-0x00000000101B6000-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\\259446588.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
2072	svchost.exe
2304	TXPlatforn.exe
2260	svchos.exe
2684	TXPlatforn.exe
2700	HD_acd8532f6e98e5ab14048e76edeb10c9a2d008044ab9b25c62d18ba733e7abd8.exe
1940	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

Loads dropped DLL 8 IoCs

pid	Process
2412	acd8532f6e98e5ab14048e76edeb10c9a2d008044ab9b25c62d18ba733e7abd8.exe
2412	acd8532f6e98e5ab14048e76edeb10c9a2d008044ab9b25c62d18ba733e7abd8.exe
2304	TXPlatforn.exe
2260	svchos.exe
2648	svchost.exe
2412	acd8532f6e98e5ab14048e76edeb10c9a2d008044ab9b25c62d18ba733e7abd8.exe
2648	svchost.exe
1940	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/2072-5-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2072-12-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2072-7-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2072-8-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2304-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2304-30-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2684-35-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2684-39-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2684-51-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

description	ioc	Process
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
File created	C:\Windows\SysWOW64\259446588.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

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Google\Chrome\Application\chrome.exe	acd8532f6e98e5ab14048e76edeb10c9a2d008044ab9b25c62d18ba733e7abd8.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	acd8532f6e98e5ab14048e76edeb10c9a2d008044ab9b25c62d18ba733e7abd8.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe	acd8532f6e98e5ab14048e76edeb10c9a2d008044ab9b25c62d18ba733e7abd8.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	acd8532f6e98e5ab14048e76edeb10c9a2d008044ab9b25c62d18ba733e7abd8.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 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	TXPlatforn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchos.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	acd8532f6e98e5ab14048e76edeb10c9a2d008044ab9b25c62d18ba733e7abd8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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
2864	cmd.exe
3000	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3000	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2412	acd8532f6e98e5ab14048e76edeb10c9a2d008044ab9b25c62d18ba733e7abd8.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2684	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2072	svchost.exe
Token: SeLoadDriverPrivilege	2684	TXPlatforn.exe
Token: 33	2684	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2684	TXPlatforn.exe
Token: 33	2684	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2684	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2412	acd8532f6e98e5ab14048e76edeb10c9a2d008044ab9b25c62d18ba733e7abd8.exe
2412	acd8532f6e98e5ab14048e76edeb10c9a2d008044ab9b25c62d18ba733e7abd8.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2412 wrote to memory of 2072	2412	acd8532f6e98e5ab14048e76edeb10c9a2d008044ab9b25c62d18ba733e7abd8.exe	31
PID 2412 wrote to memory of 2072	2412	acd8532f6e98e5ab14048e76edeb10c9a2d008044ab9b25c62d18ba733e7abd8.exe	31
PID 2412 wrote to memory of 2072	2412	acd8532f6e98e5ab14048e76edeb10c9a2d008044ab9b25c62d18ba733e7abd8.exe	31
PID 2412 wrote to memory of 2072	2412	acd8532f6e98e5ab14048e76edeb10c9a2d008044ab9b25c62d18ba733e7abd8.exe	31
PID 2412 wrote to memory of 2072	2412	acd8532f6e98e5ab14048e76edeb10c9a2d008044ab9b25c62d18ba733e7abd8.exe	31
PID 2412 wrote to memory of 2072	2412	acd8532f6e98e5ab14048e76edeb10c9a2d008044ab9b25c62d18ba733e7abd8.exe	31
PID 2412 wrote to memory of 2072	2412	acd8532f6e98e5ab14048e76edeb10c9a2d008044ab9b25c62d18ba733e7abd8.exe	31
PID 2072 wrote to memory of 2864	2072	svchost.exe	33
PID 2072 wrote to memory of 2864	2072	svchost.exe	33
PID 2072 wrote to memory of 2864	2072	svchost.exe	33
PID 2072 wrote to memory of 2864	2072	svchost.exe	33
PID 2412 wrote to memory of 2260	2412	acd8532f6e98e5ab14048e76edeb10c9a2d008044ab9b25c62d18ba733e7abd8.exe	35
PID 2412 wrote to memory of 2260	2412	acd8532f6e98e5ab14048e76edeb10c9a2d008044ab9b25c62d18ba733e7abd8.exe	35
PID 2412 wrote to memory of 2260	2412	acd8532f6e98e5ab14048e76edeb10c9a2d008044ab9b25c62d18ba733e7abd8.exe	35
PID 2412 wrote to memory of 2260	2412	acd8532f6e98e5ab14048e76edeb10c9a2d008044ab9b25c62d18ba733e7abd8.exe	35
PID 2304 wrote to memory of 2684	2304	TXPlatforn.exe	36
PID 2304 wrote to memory of 2684	2304	TXPlatforn.exe	36
PID 2304 wrote to memory of 2684	2304	TXPlatforn.exe	36
PID 2304 wrote to memory of 2684	2304	TXPlatforn.exe	36
PID 2304 wrote to memory of 2684	2304	TXPlatforn.exe	36
PID 2304 wrote to memory of 2684	2304	TXPlatforn.exe	36
PID 2304 wrote to memory of 2684	2304	TXPlatforn.exe	36
PID 2864 wrote to memory of 3000	2864	cmd.exe	37
PID 2864 wrote to memory of 3000	2864	cmd.exe	37
PID 2864 wrote to memory of 3000	2864	cmd.exe	37
PID 2864 wrote to memory of 3000	2864	cmd.exe	37
PID 2648 wrote to memory of 1940	2648	svchost.exe	41
PID 2648 wrote to memory of 1940	2648	svchost.exe	41
PID 2648 wrote to memory of 1940	2648	svchost.exe	41
PID 2648 wrote to memory of 1940	2648	svchost.exe	41

C:\Users\Admin\AppData\Local\Temp\acd8532f6e98e5ab14048e76edeb10c9a2d008044ab9b25c62d18ba733e7abd8.exe
"C:\Users\Admin\AppData\Local\Temp\acd8532f6e98e5ab14048e76edeb10c9a2d008044ab9b25c62d18ba733e7abd8.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:2412
- 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:2072
- - 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:2864
  - - 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:3000
- 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:2260
- C:\Users\Admin\AppData\Local\Temp\HD_acd8532f6e98e5ab14048e76edeb10c9a2d008044ab9b25c62d18ba733e7abd8.exe
  C:\Users\Admin\AppData\Local\Temp\HD_acd8532f6e98e5ab14048e76edeb10c9a2d008044ab9b25c62d18ba733e7abd8.exe
  2⤵
  - Executes dropped EXE
  PID:2700

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:2304
- 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:2684

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
1⤵
PID:2204

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:2648
- C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
  C:\Windows\system32\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe "c:\windows\system32\259446588.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:1940

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

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
1.7MB

MD5
4dd228da9519e3e28b1d3678bd4e8b12

SHA1
49dc19aa7ac09e1b41a9d48991df4f08c083bedd

SHA256
9008ee61a8e3187091daeae0edc932426e36468f6107891fb9ffa652728dc723

SHA512
f009ca1757632635a16603c8499adc1affb41c184b5c9062a35f99f044d188b7e98e839457290eb4af07cb2c1213f4cc96029dc4270f65d1815e5b240742bc28

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

Filesize
1.4MB

MD5
5abe400124d6ce80e39050e142d2ad8f

SHA1
0214ed6573855558b8309ec988f7991b3e39f6cc

SHA256
8b2ae26de4c5265f5fcd66027e13e4dadfa81769e0b4b1782dd1780722f31081

SHA512
2db606a0038784d31e31d016cbed03f428d1bce2f3c8671bd05d67a726c9cf9a7af7f1ff82cd90fc5a873cc08412b61c1effe4285140a65c3693805248fcab58

Download Submit
\Users\Admin\AppData\Local\Temp\HD_acd8532f6e98e5ab14048e76edeb10c9a2d008044ab9b25c62d18ba733e7abd8.exe

Filesize
645KB

MD5
00eae789b0aab1b0fbd23b830fbf1064

SHA1
e4e5fd089f6ae17c83f073cf91edc9db8189980d

SHA256
7addb2269266ac471a690802cab54539b40c2ae5b31e2120fdcf8dfb0ed15dc7

SHA512
23a0e06b39f8b5a932ae5b8f60704ba265332b341ac8bab5b74b2f31f04ce8c7fe6f77278d70c7685cfa894ab0e25a70d89990f5f643b54c07337f90fa5943fb

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\259446588.txt

Filesize
50KB

MD5
4896d3a2636701b3fcb729538b34ce02

SHA1
d99421ffd76c2ceefb8808e1f2279c24f36d7d42

SHA256
04d51c5ef5793d646b2d03072d24f6eaeeade80b7266122cd822592e60c1efdc

SHA512
bebaa6a577a3f0778a65df47b6944f0cff6c7179f20e1eb219273af5fc1c8dbf6794248735d86e2532c87ef2f5543113919a645173b3129a6cbfabf39bb88811

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

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/2072-8-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2072-7-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2072-12-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2072-5-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2304-30-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2304-18-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2684-35-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2684-39-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2684-51-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download