gh0strat | c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2

Analysis

max time kernel
150s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18-09-2024 14:31

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General

Target

c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe
Size

1.7MB
MD5

971fdb6dbac10fa0f1f48f8c02e16291
SHA1

14f8ad2b1e33625997ca5c6d18db2be4f1a325ca
SHA256

c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2
SHA512

e0e68b3ae5080f8ab5e52c47781e100f754868e020d48f81befc3933761cd3669419f98744cb72816b63bd42b915cd2bb1ff94b58546d9d21649f9c6617ab136
SSDEEP

24576:KQZoidOTdVZinacCET9Ecl1erdg0MCiVWhFU7cVjwpeXyZWSJx24G:KQZAdVyVT9n/Gg0P+Who9peiZlg4G

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/2220-7-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2220-9-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2220-23-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2736-33-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2192-34-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2192-31-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2192-38-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2192-39-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 10 IoCs

resource	yara_rule
behavioral1/memory/2220-7-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2220-9-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2736-18-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2220-23-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2736-33-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2192-34-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2192-31-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2192-38-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2192-39-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/files/0x0007000000016d0b-41.dat	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\\259413922.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
2220	svchost.exe
2736	TXPlatforn.exe
2192	TXPlatforn.exe
2720	svchos.exe
1248	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

Loads dropped DLL 7 IoCs

pid	Process
2636	c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe
2736	TXPlatforn.exe
2636	c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe
2720	svchos.exe
3048	svchost.exe
3048	svchost.exe
1248	Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2220-5-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2220-7-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2220-9-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2736-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2220-23-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2736-33-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2192-34-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2192-31-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2192-38-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2192-39-0x0000000010000000-0x00000000101B6000-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\259413922.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

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	c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe
File created	C:\Program Files (x86)\Google\Chrome\Application\chrome.exe	c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.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	svchos.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	c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TXPlatforn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.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
2824	cmd.exe
2600	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2600	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2192	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2220	svchost.exe
Token: SeLoadDriverPrivilege	2192	TXPlatforn.exe
Token: 33	2192	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2192	TXPlatforn.exe
Token: 33	2192	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2192	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2636	c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe
2636	c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2636 wrote to memory of 2220	2636	c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe	30
PID 2636 wrote to memory of 2220	2636	c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe	30
PID 2636 wrote to memory of 2220	2636	c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe	30
PID 2636 wrote to memory of 2220	2636	c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe	30
PID 2636 wrote to memory of 2220	2636	c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe	30
PID 2636 wrote to memory of 2220	2636	c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe	30
PID 2636 wrote to memory of 2220	2636	c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe	30
PID 2220 wrote to memory of 2824	2220	svchost.exe	32
PID 2220 wrote to memory of 2824	2220	svchost.exe	32
PID 2220 wrote to memory of 2824	2220	svchost.exe	32
PID 2220 wrote to memory of 2824	2220	svchost.exe	32
PID 2736 wrote to memory of 2192	2736	TXPlatforn.exe	33
PID 2736 wrote to memory of 2192	2736	TXPlatforn.exe	33
PID 2736 wrote to memory of 2192	2736	TXPlatforn.exe	33
PID 2736 wrote to memory of 2192	2736	TXPlatforn.exe	33
PID 2736 wrote to memory of 2192	2736	TXPlatforn.exe	33
PID 2736 wrote to memory of 2192	2736	TXPlatforn.exe	33
PID 2736 wrote to memory of 2192	2736	TXPlatforn.exe	33
PID 2636 wrote to memory of 2720	2636	c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe	34
PID 2636 wrote to memory of 2720	2636	c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe	34
PID 2636 wrote to memory of 2720	2636	c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe	34
PID 2636 wrote to memory of 2720	2636	c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe	34
PID 2824 wrote to memory of 2600	2824	cmd.exe	36
PID 2824 wrote to memory of 2600	2824	cmd.exe	36
PID 2824 wrote to memory of 2600	2824	cmd.exe	36
PID 2824 wrote to memory of 2600	2824	cmd.exe	36
PID 3048 wrote to memory of 1248	3048	svchost.exe	39
PID 3048 wrote to memory of 1248	3048	svchost.exe	39
PID 3048 wrote to memory of 1248	3048	svchost.exe	39
PID 3048 wrote to memory of 1248	3048	svchost.exe	39

C:\Users\Admin\AppData\Local\Temp\c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe
"C:\Users\Admin\AppData\Local\Temp\c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2636
- 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:2220
- - 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:2824
  - - 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:2600
- 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:2720

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:2192

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
1⤵
PID:2592

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:3048
- C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
  C:\Windows\system32\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe "c:\windows\system32\259413922.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:1248

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

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Downloads

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

Filesize
1.7MB

MD5
971fdb6dbac10fa0f1f48f8c02e16291

SHA1
14f8ad2b1e33625997ca5c6d18db2be4f1a325ca

SHA256
c20fdcbef3e73880902cac835a1b452756ba58e5e66a4f3100c216bb242808a2

SHA512
e0e68b3ae5080f8ab5e52c47781e100f754868e020d48f81befc3933761cd3669419f98744cb72816b63bd42b915cd2bb1ff94b58546d9d21649f9c6617ab136

Download Submit
C:\Users\Admin\AppData\Local\Temp\X.ico

Filesize
71KB

MD5
fb44f7af2882d222b600539171f54c1d

SHA1
0c5a1a0b1620a55a0f194464227be25a2f0347e1

SHA256
f2a78e76259bc8fd4ab6af7b4e16dfb49a10643308aca3d14c09e61ac0ebd487

SHA512
21e906473f64303c4c8d55213ccb84f4a803c11fb5eef34ce3194adfb391ccbcc91e7c399556c7a4e4f3d33b9b19524d4499ec771ee8e1a10df26ea7cc2dcb67

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\259413922.txt

Filesize
50KB

MD5
a53d8c8aaf3f68b0669affbb57c9ed70

SHA1
e405d600542197a68bf471114017b52a910fa0f5

SHA256
38066a04784a502a92ff4c7b0f31bb061143a401531b1d9abdbc8118ab39bf77

SHA512
932c30517e1a3cd43f372d6c670b3742787af11c826104b2403297f3fde850d94be1d12fc003bc0f6ce521ce2627856a320e02eda53e010b3f5b49e6fc726463

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

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/2192-34-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2192-31-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2192-38-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2192-39-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2220-23-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2220-9-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2220-7-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2220-5-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2736-33-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2736-18-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads