gh0strat | f2f9c4e8e200a70d2e05c1bb63aab5a53a77d44b797b87e110b4ebca57f6c9eb

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
03-12-2024 16:01

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General

Target

f2f9c4e8e200a70d2e05c1bb63aab5a53a77d44b797b87e110b4ebca57f6c9eb.exe
Size

3.6MB
MD5

09a12f2abb4781f1617d0e350ae1ae50
SHA1

4dd70a3f1a479b621b139c119d545cd7c14fd6b7
SHA256

f2f9c4e8e200a70d2e05c1bb63aab5a53a77d44b797b87e110b4ebca57f6c9eb
SHA512

4cb1001219f1a15107a0ac001db81b4457d98ce0b7afbe52911304658261d28a3e946dd9adfd8bbdcc71d3605fc949fabfea7aecd0c87bcfea7ddaaf2dfcb27b
SSDEEP

49152:4CwsbCANnKXferL7Vwe/Gg0P+WhjWJpWoAFzOHWhB4:Tws2ANnKXOaeOgmhyJgnzS

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 5 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/2120-21-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2120-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2640-43-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2640-46-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2640-49-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 6 IoCs

resource	yara_rule
behavioral1/files/0x0008000000016d31-6.dat	family_gh0strat
behavioral1/memory/2120-21-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2120-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2640-43-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2640-46-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2640-49-0x0000000010000000-0x00000000101B6000-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

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\\259447025.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
2060	R.exe
2120	N.exe
2676	TXPlatfor.exe
2640	TXPlatfor.exe
2932	HD_f2f9c4e8e200a70d2e05c1bb63aab5a53a77d44b797b87e110b4ebca57f6c9eb.exe
1972	Remote Data.exe

Loads dropped DLL 8 IoCs

pid	Process
2464	f2f9c4e8e200a70d2e05c1bb63aab5a53a77d44b797b87e110b4ebca57f6c9eb.exe
2060	R.exe
2280	svchost.exe
2464	f2f9c4e8e200a70d2e05c1bb63aab5a53a77d44b797b87e110b4ebca57f6c9eb.exe
2676	TXPlatfor.exe
2464	f2f9c4e8e200a70d2e05c1bb63aab5a53a77d44b797b87e110b4ebca57f6c9eb.exe
2280	svchost.exe
1972	Remote Data.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\259447025.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
File opened for modification	C:\Windows\SysWOW64\TXPlatfor.exe	N.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2120-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2120-21-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2120-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2640-43-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2640-46-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2640-49-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 9 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	HD_f2f9c4e8e200a70d2e05c1bb63aab5a53a77d44b797b87e110b4ebca57f6c9eb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Remote Data.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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f2f9c4e8e200a70d2e05c1bb63aab5a53a77d44b797b87e110b4ebca57f6c9eb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	R.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
2852	cmd.exe
2796	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2796	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2464	f2f9c4e8e200a70d2e05c1bb63aab5a53a77d44b797b87e110b4ebca57f6c9eb.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2640	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2120	N.exe
Token: SeLoadDriverPrivilege	2640	TXPlatfor.exe
Token: 33	2640	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2640	TXPlatfor.exe
Token: 33	2640	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2640	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2464	f2f9c4e8e200a70d2e05c1bb63aab5a53a77d44b797b87e110b4ebca57f6c9eb.exe
2464	f2f9c4e8e200a70d2e05c1bb63aab5a53a77d44b797b87e110b4ebca57f6c9eb.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 2464 wrote to memory of 2060	2464	f2f9c4e8e200a70d2e05c1bb63aab5a53a77d44b797b87e110b4ebca57f6c9eb.exe	31
PID 2464 wrote to memory of 2060	2464	f2f9c4e8e200a70d2e05c1bb63aab5a53a77d44b797b87e110b4ebca57f6c9eb.exe	31
PID 2464 wrote to memory of 2060	2464	f2f9c4e8e200a70d2e05c1bb63aab5a53a77d44b797b87e110b4ebca57f6c9eb.exe	31
PID 2464 wrote to memory of 2060	2464	f2f9c4e8e200a70d2e05c1bb63aab5a53a77d44b797b87e110b4ebca57f6c9eb.exe	31
PID 2464 wrote to memory of 2120	2464	f2f9c4e8e200a70d2e05c1bb63aab5a53a77d44b797b87e110b4ebca57f6c9eb.exe	34
PID 2464 wrote to memory of 2120	2464	f2f9c4e8e200a70d2e05c1bb63aab5a53a77d44b797b87e110b4ebca57f6c9eb.exe	34
PID 2464 wrote to memory of 2120	2464	f2f9c4e8e200a70d2e05c1bb63aab5a53a77d44b797b87e110b4ebca57f6c9eb.exe	34
PID 2464 wrote to memory of 2120	2464	f2f9c4e8e200a70d2e05c1bb63aab5a53a77d44b797b87e110b4ebca57f6c9eb.exe	34
PID 2464 wrote to memory of 2120	2464	f2f9c4e8e200a70d2e05c1bb63aab5a53a77d44b797b87e110b4ebca57f6c9eb.exe	34
PID 2464 wrote to memory of 2120	2464	f2f9c4e8e200a70d2e05c1bb63aab5a53a77d44b797b87e110b4ebca57f6c9eb.exe	34
PID 2464 wrote to memory of 2120	2464	f2f9c4e8e200a70d2e05c1bb63aab5a53a77d44b797b87e110b4ebca57f6c9eb.exe	34
PID 2120 wrote to memory of 2852	2120	N.exe	36
PID 2120 wrote to memory of 2852	2120	N.exe	36
PID 2120 wrote to memory of 2852	2120	N.exe	36
PID 2120 wrote to memory of 2852	2120	N.exe	36
PID 2676 wrote to memory of 2640	2676	TXPlatfor.exe	38
PID 2676 wrote to memory of 2640	2676	TXPlatfor.exe	38
PID 2676 wrote to memory of 2640	2676	TXPlatfor.exe	38
PID 2676 wrote to memory of 2640	2676	TXPlatfor.exe	38
PID 2676 wrote to memory of 2640	2676	TXPlatfor.exe	38
PID 2676 wrote to memory of 2640	2676	TXPlatfor.exe	38
PID 2676 wrote to memory of 2640	2676	TXPlatfor.exe	38
PID 2464 wrote to memory of 2932	2464	f2f9c4e8e200a70d2e05c1bb63aab5a53a77d44b797b87e110b4ebca57f6c9eb.exe	39
PID 2464 wrote to memory of 2932	2464	f2f9c4e8e200a70d2e05c1bb63aab5a53a77d44b797b87e110b4ebca57f6c9eb.exe	39
PID 2464 wrote to memory of 2932	2464	f2f9c4e8e200a70d2e05c1bb63aab5a53a77d44b797b87e110b4ebca57f6c9eb.exe	39
PID 2464 wrote to memory of 2932	2464	f2f9c4e8e200a70d2e05c1bb63aab5a53a77d44b797b87e110b4ebca57f6c9eb.exe	39
PID 2852 wrote to memory of 2796	2852	cmd.exe	40
PID 2852 wrote to memory of 2796	2852	cmd.exe	40
PID 2852 wrote to memory of 2796	2852	cmd.exe	40
PID 2852 wrote to memory of 2796	2852	cmd.exe	40
PID 2280 wrote to memory of 1972	2280	svchost.exe	41
PID 2280 wrote to memory of 1972	2280	svchost.exe	41
PID 2280 wrote to memory of 1972	2280	svchost.exe	41
PID 2280 wrote to memory of 1972	2280	svchost.exe	41

C:\Users\Admin\AppData\Local\Temp\f2f9c4e8e200a70d2e05c1bb63aab5a53a77d44b797b87e110b4ebca57f6c9eb.exe
"C:\Users\Admin\AppData\Local\Temp\f2f9c4e8e200a70d2e05c1bb63aab5a53a77d44b797b87e110b4ebca57f6c9eb.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2464
- 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:2060
- 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:2120
- - 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:2852
  - - 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:2796
- C:\Users\Admin\AppData\Local\Temp\HD_f2f9c4e8e200a70d2e05c1bb63aab5a53a77d44b797b87e110b4ebca57f6c9eb.exe
  C:\Users\Admin\AppData\Local\Temp\HD_f2f9c4e8e200a70d2e05c1bb63aab5a53a77d44b797b87e110b4ebca57f6c9eb.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2932

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:2472

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:2280
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\259447025.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:1972

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:2676
- 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:2640

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
2.5MB

MD5
33a9b5baca0c3b566ef001dd69bf611b

SHA1
d35cd0011edcc1ee5e38c0fb5e954627016b85c1

SHA256
5af06e7cf196de8edb241ecb002438d276658eca8c375f227c768e4ca598bbaa

SHA512
9b1c8145a4f1a07852649d1a1d504c30e5a0d7687126a692445e10d4f812a77bf37a1f4626db66f4dce9f9ba0b04fc5bac92ceec0c2a339318deb53c5a628a75

Download Submit
\Users\Admin\AppData\Local\Temp\HD_f2f9c4e8e200a70d2e05c1bb63aab5a53a77d44b797b87e110b4ebca57f6c9eb.exe

Filesize
1.1MB

MD5
3748b7e4240762c5d80b5ff3bb9f0bcb

SHA1
a44e12fb1b183b17503493fdf089fb9994924657

SHA256
6da1e668df4eea2198b64f34dbc604586180176e60a7b389637fbd43084e25ff

SHA512
9b3b11043a6426009b8bccc6bfadc8105fef7872240d4591e77b8967f9ee5c52b41fcc57f0c444aaac224b0f4f6dcdbaf75364a81b74997ac30ebada54a9a4dc

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\259447025.txt

Filesize
899KB

MD5
346f6cdd79e416850db62bb26ed355ab

SHA1
3c9b559669ca4f2b57a4a7e999da3dede7fa6403

SHA256
4642e6f0cb2acd67ab136ae9282844d8304a1eb3671742959c7e6f58ce79a99d

SHA512
cf520ff11ca589d017ca4b5c5cf72b260d8aa17aca4587f4bd8a910992801b8803a0a64a57341d44b021e1e3ee358c1b2b6c16f2f72079207dd0c8c1df561850

Download Submit
\Windows\SysWOW64\Remote Data.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/2120-18-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2120-21-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2120-20-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2640-43-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2640-46-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2640-49-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download