gh0strat | 25594c1f21c293ea0a11ab303b2d7bdef84fc7228e43189ff46c29215f9aaeb5

Analysis

max time kernel
150s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24-10-2024 23:15

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General

Target

25594c1f21c293ea0a11ab303b2d7bdef84fc7228e43189ff46c29215f9aaeb5.exe
Size

2.8MB
MD5

4a66dc4fd5e138b6d8ea3d9975a68a05
SHA1

ebff5f1b2020f585b5ebf69685620e1163042e00
SHA256

25594c1f21c293ea0a11ab303b2d7bdef84fc7228e43189ff46c29215f9aaeb5
SHA512

f8dee509c760bd5cac26a036baf84f282eba38b1526385c4d3eb41b9a34172033162920a88fee5f06ac95508641413601292b93d201ee918d80dc08a3332c2a5
SSDEEP

49152:mCwsbCANnKXferL7Vwe/Gg0P+WhTb27yLzOFl:Rws2ANnKXOaeOgmh/2Rz

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 7 IoCs

Detect PurpleFox Rootkit.

rootkit

Processes:

resource	yara_rule
behavioral1/memory/2956-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2956-21-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1860-45-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1860-41-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1860-40-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1860-39-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/1860-46-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 8 IoCs

Processes:

resource	yara_rule
behavioral1/files/0x000800000001506e-6.dat	family_gh0strat
behavioral1/memory/2956-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2956-21-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1860-45-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1860-41-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1860-40-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1860-39-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/1860-46-0x0000000010000000-0x00000000101B6000-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

Processes:

TXPlatfor.exe

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

Processes:

R.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Remote Data\Parameters\ServiceDll = "C:\\Windows\\system32\\259432174.txt"	R.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

TXPlatfor.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\QAssist\ImagePath = "system32\\DRIVERS\\QAssist.sys"	TXPlatfor.exe

Executes dropped EXE 5 IoCs

Processes:

R.exeN.exeTXPlatfor.exeTXPlatfor.exeRemote Data.exe

pid	Process
1316	R.exe
2956	N.exe
2412	TXPlatfor.exe
1860	TXPlatfor.exe
2900	Remote Data.exe

Loads dropped DLL 7 IoCs

Processes:

25594c1f21c293ea0a11ab303b2d7bdef84fc7228e43189ff46c29215f9aaeb5.exeR.exesvchost.exeTXPlatfor.exeRemote Data.exe

pid	Process
2404	25594c1f21c293ea0a11ab303b2d7bdef84fc7228e43189ff46c29215f9aaeb5.exe
1316	R.exe
1324	svchost.exe
2404	25594c1f21c293ea0a11ab303b2d7bdef84fc7228e43189ff46c29215f9aaeb5.exe
2412	TXPlatfor.exe
1324	svchost.exe
2900	Remote Data.exe

Drops file in System32 directory 6 IoCs

Processes:

svchost.exeN.exeR.exe

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Remote Data.exe	svchost.exe
File created	C:\Windows\SysWOW64\TXPlatfor.exe	N.exe
File opened for modification	C:\Windows\SysWOW64\TXPlatfor.exe	N.exe
File created	C:\Windows\SysWOW64\259432174.txt	R.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	R.exe
File created	C:\Windows\SysWOW64\Remote Data.exe	svchost.exe

UPX packed file 9 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2956-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2956-21-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2956-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1860-45-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1860-41-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1860-40-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1860-39-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1860-37-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/1860-46-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

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

Processes:

PING.EXERemote Data.exe25594c1f21c293ea0a11ab303b2d7bdef84fc7228e43189ff46c29215f9aaeb5.exeR.exesvchost.exeN.exeTXPlatfor.execmd.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Remote Data.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	25594c1f21c293ea0a11ab303b2d7bdef84fc7228e43189ff46c29215f9aaeb5.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

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

Processes:

cmd.exePING.EXE

pid	Process
2104	cmd.exe
1540	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

Processes:

PING.EXE

pid	Process
1540	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

25594c1f21c293ea0a11ab303b2d7bdef84fc7228e43189ff46c29215f9aaeb5.exe

pid	Process
2404	25594c1f21c293ea0a11ab303b2d7bdef84fc7228e43189ff46c29215f9aaeb5.exe

Suspicious behavior: LoadsDriver 1 IoCs

Processes:

TXPlatfor.exe

pid	Process
1860	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

N.exeTXPlatfor.exe

description	pid	Process
Token: SeIncBasePriorityPrivilege	2956	N.exe
Token: SeLoadDriverPrivilege	1860	TXPlatfor.exe
Token: 33	1860	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	1860	TXPlatfor.exe
Token: 33	1860	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	1860	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

25594c1f21c293ea0a11ab303b2d7bdef84fc7228e43189ff46c29215f9aaeb5.exe

pid	Process
2404	25594c1f21c293ea0a11ab303b2d7bdef84fc7228e43189ff46c29215f9aaeb5.exe
2404	25594c1f21c293ea0a11ab303b2d7bdef84fc7228e43189ff46c29215f9aaeb5.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

25594c1f21c293ea0a11ab303b2d7bdef84fc7228e43189ff46c29215f9aaeb5.exeN.exeTXPlatfor.execmd.exesvchost.exe

description	pid	Process	procid_target
PID 2404 wrote to memory of 1316	2404	25594c1f21c293ea0a11ab303b2d7bdef84fc7228e43189ff46c29215f9aaeb5.exe	28
PID 2404 wrote to memory of 1316	2404	25594c1f21c293ea0a11ab303b2d7bdef84fc7228e43189ff46c29215f9aaeb5.exe	28
PID 2404 wrote to memory of 1316	2404	25594c1f21c293ea0a11ab303b2d7bdef84fc7228e43189ff46c29215f9aaeb5.exe	28
PID 2404 wrote to memory of 1316	2404	25594c1f21c293ea0a11ab303b2d7bdef84fc7228e43189ff46c29215f9aaeb5.exe	28
PID 2404 wrote to memory of 2956	2404	25594c1f21c293ea0a11ab303b2d7bdef84fc7228e43189ff46c29215f9aaeb5.exe	31
PID 2404 wrote to memory of 2956	2404	25594c1f21c293ea0a11ab303b2d7bdef84fc7228e43189ff46c29215f9aaeb5.exe	31
PID 2404 wrote to memory of 2956	2404	25594c1f21c293ea0a11ab303b2d7bdef84fc7228e43189ff46c29215f9aaeb5.exe	31
PID 2404 wrote to memory of 2956	2404	25594c1f21c293ea0a11ab303b2d7bdef84fc7228e43189ff46c29215f9aaeb5.exe	31
PID 2404 wrote to memory of 2956	2404	25594c1f21c293ea0a11ab303b2d7bdef84fc7228e43189ff46c29215f9aaeb5.exe	31
PID 2404 wrote to memory of 2956	2404	25594c1f21c293ea0a11ab303b2d7bdef84fc7228e43189ff46c29215f9aaeb5.exe	31
PID 2404 wrote to memory of 2956	2404	25594c1f21c293ea0a11ab303b2d7bdef84fc7228e43189ff46c29215f9aaeb5.exe	31
PID 2956 wrote to memory of 2104	2956	N.exe	33
PID 2956 wrote to memory of 2104	2956	N.exe	33
PID 2956 wrote to memory of 2104	2956	N.exe	33
PID 2956 wrote to memory of 2104	2956	N.exe	33
PID 2412 wrote to memory of 1860	2412	TXPlatfor.exe	35
PID 2412 wrote to memory of 1860	2412	TXPlatfor.exe	35
PID 2412 wrote to memory of 1860	2412	TXPlatfor.exe	35
PID 2412 wrote to memory of 1860	2412	TXPlatfor.exe	35
PID 2412 wrote to memory of 1860	2412	TXPlatfor.exe	35
PID 2412 wrote to memory of 1860	2412	TXPlatfor.exe	35
PID 2412 wrote to memory of 1860	2412	TXPlatfor.exe	35
PID 2104 wrote to memory of 1540	2104	cmd.exe	36
PID 2104 wrote to memory of 1540	2104	cmd.exe	36
PID 2104 wrote to memory of 1540	2104	cmd.exe	36
PID 2104 wrote to memory of 1540	2104	cmd.exe	36
PID 1324 wrote to memory of 2900	1324	svchost.exe	37
PID 1324 wrote to memory of 2900	1324	svchost.exe	37
PID 1324 wrote to memory of 2900	1324	svchost.exe	37
PID 1324 wrote to memory of 2900	1324	svchost.exe	37

C:\Users\Admin\AppData\Local\Temp\25594c1f21c293ea0a11ab303b2d7bdef84fc7228e43189ff46c29215f9aaeb5.exe
"C:\Users\Admin\AppData\Local\Temp\25594c1f21c293ea0a11ab303b2d7bdef84fc7228e43189ff46c29215f9aaeb5.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2404
- 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:1316
- 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:2956
- - 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:2104
  - - 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:1540

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:2236

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:1324
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\259432174.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2900

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2412
- 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:1860

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

Replay Monitor

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Downloads

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

Filesize
2.4MB

MD5
076653d88b8f4fae4054e9a2638e97eb

SHA1
c690df894ca5f21bf0f7e05092c557cdda89614d

SHA256
b70d80db9b9a5026972636b765079a04e13de9941512e812538cc298cfb77802

SHA512
81ec93975152b730793029e8c4c5a40d213fe0141c4303176540b1b6c2dc34bccad5354b367b4b519f909bfb56fb208ed1f57799e8fc8adc561be8754cf8c6a8

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
\Windows\SysWOW64\259432174.txt

Filesize
899KB

MD5
806fac42d09a3b6240746d7ca6e58ba9

SHA1
4ae0085a1843defa178d3601c4073767afc48fc9

SHA256
c088b61bd42b302c60e74d3e17a590defade106fd7095b2e92fdfffcdbf468c9

SHA512
e483a2cdb51c092467f7ee3b9dac036b3af1dc7e69f94704ef37cf7dc1f20221ac804a0493fd55d22b2951006f28110bb4533c4ef0d08a9b64bd92fc3cfabde7

Download Submit
\Windows\SysWOW64\Remote Data.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/1860-39-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1860-45-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1860-41-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1860-40-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1860-37-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/1860-46-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2956-18-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2956-21-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2956-20-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download