gh0strat | 81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
03-12-2024 15:54

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General

Target

81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe
Size

4.5MB
MD5

506499c3920b5a37fb0278e902bbf166
SHA1

1ee4f1a5ce27ba60c8817d00160c2a64435c2887
SHA256

81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2
SHA512

b65a6802d3b6453a403829e346b451629a87580d1faf99d8699fdc593857834893a1ccf5434de800e7ffb10307a5e9aa3e6cb33a7446a8bc8f553bf259010174
SSDEEP

49152:kCwsbCANnKXferL7Vwe/Gg0P+WhvgWWHB5+0vY3u6c20LAonnOeJ9EWWf:nws2ANnKXOaeOgmh1WHBk0vjAoOe9Wf

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
behavioral2/memory/2232-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2232-23-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2232-19-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4816-29-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4340-43-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4340-47-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4816-28-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4340-48-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 9 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023c76-5.dat	family_gh0strat
behavioral2/memory/2232-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2232-23-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2232-19-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4816-29-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4340-43-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4340-47-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4816-28-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4340-48-0x0000000010000000-0x00000000101B6000-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	TXPlatfor.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\Remote Data\Parameters\ServiceDll = "C:\\Windows\\system32\\240625890.txt"	R.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"	TXPlatfor.exe

Executes dropped EXE 6 IoCs

pid	Process
1860	R.exe
2232	N.exe
4816	TXPlatfor.exe
4340	TXPlatfor.exe
2448	HD_81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe
4596	Remote Data.exe

Loads dropped DLL 3 IoCs

pid	Process
1860	R.exe
3836	svchost.exe
4596	Remote Data.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\TXPlatfor.exe	N.exe
File created	C:\Windows\SysWOW64\240625890.txt	R.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	R.exe
File created	C:\Windows\SysWOW64\Remote Data.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\Remote Data.exe	svchost.exe
File created	C:\Windows\SysWOW64\TXPlatfor.exe	N.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2232-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2232-23-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2232-19-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2232-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4816-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4340-43-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4340-47-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4816-28-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4340-48-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4816-26-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe	81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.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	Remote Data.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	R.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TXPlatfor.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
2464	cmd.exe
2608	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2608	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3612	81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe
3612	81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
4340	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2232	N.exe
Token: SeLoadDriverPrivilege	4340	TXPlatfor.exe
Token: 33	4340	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	4340	TXPlatfor.exe
Token: 33	4340	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	4340	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3612	81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe
3612	81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 3612 wrote to memory of 1860	3612	81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe	83
PID 3612 wrote to memory of 1860	3612	81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe	83
PID 3612 wrote to memory of 1860	3612	81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe	83
PID 3612 wrote to memory of 2232	3612	81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe	86
PID 3612 wrote to memory of 2232	3612	81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe	86
PID 3612 wrote to memory of 2232	3612	81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe	86
PID 2232 wrote to memory of 2464	2232	N.exe	88
PID 2232 wrote to memory of 2464	2232	N.exe	88
PID 2232 wrote to memory of 2464	2232	N.exe	88
PID 4816 wrote to memory of 4340	4816	TXPlatfor.exe	89
PID 4816 wrote to memory of 4340	4816	TXPlatfor.exe	89
PID 4816 wrote to memory of 4340	4816	TXPlatfor.exe	89
PID 3612 wrote to memory of 2448	3612	81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe	90
PID 3612 wrote to memory of 2448	3612	81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe	90
PID 2464 wrote to memory of 2608	2464	cmd.exe	92
PID 2464 wrote to memory of 2608	2464	cmd.exe	92
PID 2464 wrote to memory of 2608	2464	cmd.exe	92
PID 3836 wrote to memory of 4596	3836	svchost.exe	95
PID 3836 wrote to memory of 4596	3836	svchost.exe	95
PID 3836 wrote to memory of 4596	3836	svchost.exe	95

C:\Users\Admin\AppData\Local\Temp\81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe
"C:\Users\Admin\AppData\Local\Temp\81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3612
- C:\Users\Admin\AppData\Local\Temp\R.exe
  C:\Users\Admin\AppData\Local\Temp\\R.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:1860
- C:\Users\Admin\AppData\Local\Temp\N.exe
  C:\Users\Admin\AppData\Local\Temp\\N.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:2232
- - 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\N.exe > nul
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:2464
  - - 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:2608
- C:\Users\Admin\AppData\Local\Temp\HD_81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe
  C:\Users\Admin\AppData\Local\Temp\HD_81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe
  2⤵
  - Executes dropped EXE
  PID:2448

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:2596

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3836
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\240625890.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:4596

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4816
- C:\Windows\SysWOW64\TXPlatfor.exe
  C:\Windows\SysWOW64\TXPlatfor.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:4340

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\HD_81be4c5326479e09cc3f1ee0c29128c45bf197d24f2ca17931e36ccc32b955a2.exe

Filesize
2.1MB

MD5
1aa03156eb9d1a0dc99c857561cbab75

SHA1
43efbf608fa22ac1942ec7bb2b55b9eda8bd7e46

SHA256
df9e8bd64b9902bd59ccbbb2340a2e839a715e6275a012054b8e1fe26c5a33f9

SHA512
81f1c8c7bb289a2232a317e5834a5c194a48dd7406881d2dc40180f73ca8078a3fee6e0f17c4ed15c602e01ce1ad7007d00925e5dbe11585e4c4f43420adc884

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

Filesize
2.4MB

MD5
a271205d83597d54f28300eec3665c90

SHA1
419b0520495c4da73592fce94c70c90407da3ea1

SHA256
71f668e451592d3e7855e84e4792b588eb706911b3707b6fa0c6d30df3e0b622

SHA512
7683a195e253d85b64d6a9f99d289c72fc7d13dec035b2ecce126dc1f16d483e59fca4cf72aa3c59f84d8b0564caa8a9a342dba1ce355b9590e623bbee1acb9f

Download Submit
C:\Users\Admin\AppData\Local\Temp\N.exe

Filesize
377KB

MD5
4a36a48e58829c22381572b2040b6fe0

SHA1
f09d30e44ff7e3f20a5de307720f3ad148c6143b

SHA256
3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8

SHA512
5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0

Download Submit
C:\Users\Admin\AppData\Local\Temp\R.exe

Filesize
941KB

MD5
8dc3adf1c490211971c1e2325f1424d2

SHA1
4eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5

SHA256
bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c

SHA512
ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d

Download Submit
C:\Windows\SysWOW64\240625890.txt

Filesize
899KB

MD5
3050889692f79fedf835d42f47e9a2af

SHA1
ca161e630b068de2fa433c2f27e3e54e1664d616

SHA256
f8940f7423426d714c95595c6ea35e4068e317660f973318a4ab2fcd0cdb856b

SHA512
f7a6a711657c2a8acca5bdafb63e132f7794138d34fd306f4b3600ab8e1f653905df6c57d493fce12ee40586e073d76de91b46a505dc07adc8686cf4e3785047

Download Submit
C:\Windows\SysWOW64\Remote Data.exe

Filesize
60KB

MD5
889b99c52a60dd49227c5e485a016679

SHA1
8fa889e456aa646a4d0a4349977430ce5fa5e2d7

SHA256
6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

SHA512
08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

Download Submit
memory/2232-23-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2232-18-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2232-19-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2232-20-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2448-41-0x00007FF68A470000-0x00007FF68A743000-memory.dmp

Filesize
2.8MB

Download
memory/2448-64-0x00007FF68A470000-0x00007FF68A743000-memory.dmp

Filesize
2.8MB

Download
memory/4340-43-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4340-47-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4340-48-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4816-29-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4816-28-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/4816-26-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download