gh0strat | e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e

Analysis

max time kernel
150s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03-12-2024 15:57

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General

Target

e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.exe
Size

3.6MB
MD5

7197bd87977821e4397edf4868799583
SHA1

4e4e80ee01a6210cb57a3f8bc1c9427e3bf9597d
SHA256

e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e
SHA512

762b12b7d49c6a859c7dc14cd6c46f6a181828c2c32b0189014733e504ee932d4a9ec6b66718fad37a943862d934d6500adb712659be16d351e157b0796802b4
SSDEEP

49152:TCwsbCANnKXferL7Vwe/Gg0P+WhcNsQ4luvCdxNsQ4luvd:Gws2ANnKXOaeOgmh0sQ4lu6d7sQ4lul

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 5 IoCs

Detect PurpleFox Rootkit.

rootkit

Processes:

resource	yara_rule
behavioral1/memory/2436-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2436-21-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2724-44-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2724-48-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2724-49-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/files/0x0008000000019030-6.dat	family_gh0strat
behavioral1/memory/2436-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2436-21-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2724-44-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2724-48-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2724-49-0x0000000010000000-0x00000000101B6000-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

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\\259436620.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 6 IoCs

Processes:

R.exeN.exeTXPlatfor.exeTXPlatfor.exeHD_e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.exeRemote Data.exe

pid	Process
2112	R.exe
2436	N.exe
3060	TXPlatfor.exe
2724	TXPlatfor.exe
2664	HD_e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.exe
2588	Remote Data.exe

Loads dropped DLL 8 IoCs

Processes:

e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.exeR.exesvchost.exeTXPlatfor.exeRemote Data.exe

pid	Process
1840	e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.exe
2112	R.exe
2116	svchost.exe
1840	e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.exe
3060	TXPlatfor.exe
1840	e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.exe
2116	svchost.exe
2588	Remote Data.exe

Drops file in System32 directory 6 IoCs

Processes:

N.exeR.exesvchost.exe

description	ioc	Process
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\259436620.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

UPX packed file 6 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2436-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2436-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2436-21-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2724-44-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2724-48-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2724-49-0x0000000010000000-0x00000000101B6000-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:

R.exesvchost.exeN.exeTXPlatfor.execmd.exePING.EXERemote Data.exee4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.exe

description	ioc	Process
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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Remote Data.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.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
2660	cmd.exe
2692	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

Processes:

PING.EXE

pid	Process
2692	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.exe

pid	Process
1840	e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.exe

Suspicious behavior: LoadsDriver 1 IoCs

Processes:

TXPlatfor.exe

pid	Process
2724	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

N.exeTXPlatfor.exe

description	pid	Process
Token: SeIncBasePriorityPrivilege	2436	N.exe
Token: SeLoadDriverPrivilege	2724	TXPlatfor.exe
Token: 33	2724	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2724	TXPlatfor.exe
Token: 33	2724	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2724	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.exe

pid	Process
1840	e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.exe
1840	e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.exe

Suspicious use of WriteProcessMemory 34 IoCs

Processes:

e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.exeN.exeTXPlatfor.execmd.exesvchost.exe

description	pid	Process	procid_target
PID 1840 wrote to memory of 2112	1840	e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.exe	30
PID 1840 wrote to memory of 2112	1840	e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.exe	30
PID 1840 wrote to memory of 2112	1840	e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.exe	30
PID 1840 wrote to memory of 2112	1840	e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.exe	30
PID 1840 wrote to memory of 2436	1840	e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.exe	33
PID 1840 wrote to memory of 2436	1840	e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.exe	33
PID 1840 wrote to memory of 2436	1840	e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.exe	33
PID 1840 wrote to memory of 2436	1840	e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.exe	33
PID 1840 wrote to memory of 2436	1840	e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.exe	33
PID 1840 wrote to memory of 2436	1840	e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.exe	33
PID 1840 wrote to memory of 2436	1840	e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.exe	33
PID 2436 wrote to memory of 2660	2436	N.exe	35
PID 2436 wrote to memory of 2660	2436	N.exe	35
PID 2436 wrote to memory of 2660	2436	N.exe	35
PID 2436 wrote to memory of 2660	2436	N.exe	35
PID 3060 wrote to memory of 2724	3060	TXPlatfor.exe	36
PID 3060 wrote to memory of 2724	3060	TXPlatfor.exe	36
PID 3060 wrote to memory of 2724	3060	TXPlatfor.exe	36
PID 3060 wrote to memory of 2724	3060	TXPlatfor.exe	36
PID 3060 wrote to memory of 2724	3060	TXPlatfor.exe	36
PID 3060 wrote to memory of 2724	3060	TXPlatfor.exe	36
PID 3060 wrote to memory of 2724	3060	TXPlatfor.exe	36
PID 1840 wrote to memory of 2664	1840	e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.exe	37
PID 1840 wrote to memory of 2664	1840	e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.exe	37
PID 1840 wrote to memory of 2664	1840	e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.exe	37
PID 1840 wrote to memory of 2664	1840	e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.exe	37
PID 2660 wrote to memory of 2692	2660	cmd.exe	39
PID 2660 wrote to memory of 2692	2660	cmd.exe	39
PID 2660 wrote to memory of 2692	2660	cmd.exe	39
PID 2660 wrote to memory of 2692	2660	cmd.exe	39
PID 2116 wrote to memory of 2588	2116	svchost.exe	40
PID 2116 wrote to memory of 2588	2116	svchost.exe	40
PID 2116 wrote to memory of 2588	2116	svchost.exe	40
PID 2116 wrote to memory of 2588	2116	svchost.exe	40

C:\Users\Admin\AppData\Local\Temp\e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.exe
"C:\Users\Admin\AppData\Local\Temp\e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1840
- 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:2112
- 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:2436
- - 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:2660
  - - 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:2692
- C:\Users\Admin\AppData\Local\Temp\HD_e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.exe
  C:\Users\Admin\AppData\Local\Temp\HD_e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.exe
  2⤵
  - Executes dropped EXE
  PID:2664

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:2388

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:2116
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\259436620.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2588

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:3060
- 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:2724

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
3.0MB

MD5
d42084151a44ee8b4cdf9c7b4e894ebb

SHA1
9d0af73cb431656fa6d70b23df4099e067f8ab9c

SHA256
160b8c40524ea3b09fee543cafbb277f87f7eda6e2b7f5ca0fa597dd32825ced

SHA512
dd29ceb0aea689c8dc003a057481cf61738c8364123bb96f70be50899e90fef80a06512ef55623d9881fa5c436af37921161be57c9ea3694d151dcea1c782911

Download Submit
\Users\Admin\AppData\Local\Temp\HD_e4838e31ca510de629f7736b9071212edcb1af719e30655bb09c58a46c72633e.exe

Filesize
635KB

MD5
32da49f809db3cdf9e695bbca39ed265

SHA1
21b5ea94c832365ea39edadb2b864e901a30d08a

SHA256
386b78b5ae5fd65bff2944386f511feec7e5fc8a91bb687934d69c91238621a5

SHA512
f093518ed78dbe6b4b2b105cb415bef7657fa9aabaf3582b33ed0c65ce7c6c0216431ad3daa4e1620e774639d575ba2ec1aff94a9fe4b9256bac0350e4684a9f

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

Filesize
377KB

MD5
4a36a48e58829c22381572b2040b6fe0

SHA1
f09d30e44ff7e3f20a5de307720f3ad148c6143b

SHA256
3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8

SHA512
5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0

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

Filesize
941KB

MD5
8dc3adf1c490211971c1e2325f1424d2

SHA1
4eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5

SHA256
bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c

SHA512
ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d

Download Submit
\Windows\SysWOW64\259436620.txt

Filesize
899KB

MD5
946987b98b136e62700981c372dddbb9

SHA1
fefafbc538e53df3469d3a6f35a0051473008a38

SHA256
e9be8c7edbdc2ac32782b77cf1cbf85574e502a7b6610de502f87fc043d2bb2b

SHA512
a0bc3078bd6cbe2fdaa3c064a0ca1c98769eacc7a9927cf60013168730071286193a67047cc4100d3a8f135e5ecc27afe15e31ebce58e07cd70132032f08a392

Download Submit
\Windows\SysWOW64\Remote Data.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/2436-18-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2436-20-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2436-21-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2724-44-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2724-48-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2724-49-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download