gh0strat | b3f61437898669f4eca20f5e25f235641961b2459d192f30bb54ad1d263d6817

Analysis

max time kernel
150s
max time network
17s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
20-08-2024 12:34

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General

Target

b3f61437898669f4eca20f5e25f235641961b2459d192f30bb54ad1d263d6817.exe
Size

3.0MB
MD5

9fff4e682ed73edef4f943c92787fb77
SHA1

15dc52562f1b6e268592de3a925db014faf1017e
SHA256

b3f61437898669f4eca20f5e25f235641961b2459d192f30bb54ad1d263d6817
SHA512

fbbde17ef057b029fcae206ea42803bdc11bd6d0183987d2d17156edb9f8d092d707562ac99f845f5ee37633620c1928a6389e0f0bd4c9672551a54ab11af43f
SSDEEP

49152:kCwsbCANnKXferL7Vwe/Gg0P+WhKGbrCvE:nws2ANnKXOaeOgmhKqCM

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 4 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/2968-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2968-21-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2732-44-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2732-49-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 5 IoCs

resource	yara_rule
behavioral1/files/0x0007000000018710-6.dat	family_gh0strat
behavioral1/memory/2968-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2968-21-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2732-44-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2732-49-0x0000000010000000-0x00000000101B6000-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
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	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\\259503607.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
2376	R.exe
2968	N.exe
2144	TXPlatfor.exe
2732	TXPlatfor.exe
3032	HD_b3f61437898669f4eca20f5e25f235641961b2459d192f30bb54ad1d263d6817.exe
1428	Remote Data.exe

Loads dropped DLL 8 IoCs

pid	Process
1760	b3f61437898669f4eca20f5e25f235641961b2459d192f30bb54ad1d263d6817.exe
2376	R.exe
2152	svchost.exe
1760	b3f61437898669f4eca20f5e25f235641961b2459d192f30bb54ad1d263d6817.exe
2144	TXPlatfor.exe
1760	b3f61437898669f4eca20f5e25f235641961b2459d192f30bb54ad1d263d6817.exe
2152	svchost.exe
1428	Remote Data.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2968-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2968-21-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2968-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2732-44-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2732-49-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\259503607.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

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 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	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	b3f61437898669f4eca20f5e25f235641961b2459d192f30bb54ad1d263d6817.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HD_b3f61437898669f4eca20f5e25f235641961b2459d192f30bb54ad1d263d6817.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	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

pid	Process
3064	cmd.exe
2260	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2260	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1760	b3f61437898669f4eca20f5e25f235641961b2459d192f30bb54ad1d263d6817.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2732	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2968	N.exe
Token: SeLoadDriverPrivilege	2732	TXPlatfor.exe
Token: 33	2732	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2732	TXPlatfor.exe
Token: 33	2732	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2732	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1760	b3f61437898669f4eca20f5e25f235641961b2459d192f30bb54ad1d263d6817.exe
1760	b3f61437898669f4eca20f5e25f235641961b2459d192f30bb54ad1d263d6817.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 1760 wrote to memory of 2376	1760	b3f61437898669f4eca20f5e25f235641961b2459d192f30bb54ad1d263d6817.exe	30
PID 1760 wrote to memory of 2376	1760	b3f61437898669f4eca20f5e25f235641961b2459d192f30bb54ad1d263d6817.exe	30
PID 1760 wrote to memory of 2376	1760	b3f61437898669f4eca20f5e25f235641961b2459d192f30bb54ad1d263d6817.exe	30
PID 1760 wrote to memory of 2376	1760	b3f61437898669f4eca20f5e25f235641961b2459d192f30bb54ad1d263d6817.exe	30
PID 1760 wrote to memory of 2968	1760	b3f61437898669f4eca20f5e25f235641961b2459d192f30bb54ad1d263d6817.exe	33
PID 1760 wrote to memory of 2968	1760	b3f61437898669f4eca20f5e25f235641961b2459d192f30bb54ad1d263d6817.exe	33
PID 1760 wrote to memory of 2968	1760	b3f61437898669f4eca20f5e25f235641961b2459d192f30bb54ad1d263d6817.exe	33
PID 1760 wrote to memory of 2968	1760	b3f61437898669f4eca20f5e25f235641961b2459d192f30bb54ad1d263d6817.exe	33
PID 1760 wrote to memory of 2968	1760	b3f61437898669f4eca20f5e25f235641961b2459d192f30bb54ad1d263d6817.exe	33
PID 1760 wrote to memory of 2968	1760	b3f61437898669f4eca20f5e25f235641961b2459d192f30bb54ad1d263d6817.exe	33
PID 1760 wrote to memory of 2968	1760	b3f61437898669f4eca20f5e25f235641961b2459d192f30bb54ad1d263d6817.exe	33
PID 2968 wrote to memory of 3064	2968	N.exe	35
PID 2968 wrote to memory of 3064	2968	N.exe	35
PID 2968 wrote to memory of 3064	2968	N.exe	35
PID 2968 wrote to memory of 3064	2968	N.exe	35
PID 2144 wrote to memory of 2732	2144	TXPlatfor.exe	36
PID 2144 wrote to memory of 2732	2144	TXPlatfor.exe	36
PID 2144 wrote to memory of 2732	2144	TXPlatfor.exe	36
PID 2144 wrote to memory of 2732	2144	TXPlatfor.exe	36
PID 2144 wrote to memory of 2732	2144	TXPlatfor.exe	36
PID 2144 wrote to memory of 2732	2144	TXPlatfor.exe	36
PID 2144 wrote to memory of 2732	2144	TXPlatfor.exe	36
PID 1760 wrote to memory of 3032	1760	b3f61437898669f4eca20f5e25f235641961b2459d192f30bb54ad1d263d6817.exe	38
PID 1760 wrote to memory of 3032	1760	b3f61437898669f4eca20f5e25f235641961b2459d192f30bb54ad1d263d6817.exe	38
PID 1760 wrote to memory of 3032	1760	b3f61437898669f4eca20f5e25f235641961b2459d192f30bb54ad1d263d6817.exe	38
PID 1760 wrote to memory of 3032	1760	b3f61437898669f4eca20f5e25f235641961b2459d192f30bb54ad1d263d6817.exe	38
PID 3064 wrote to memory of 2260	3064	cmd.exe	40
PID 3064 wrote to memory of 2260	3064	cmd.exe	40
PID 3064 wrote to memory of 2260	3064	cmd.exe	40
PID 3064 wrote to memory of 2260	3064	cmd.exe	40
PID 2152 wrote to memory of 1428	2152	svchost.exe	41
PID 2152 wrote to memory of 1428	2152	svchost.exe	41
PID 2152 wrote to memory of 1428	2152	svchost.exe	41
PID 2152 wrote to memory of 1428	2152	svchost.exe	41

C:\Users\Admin\AppData\Local\Temp\b3f61437898669f4eca20f5e25f235641961b2459d192f30bb54ad1d263d6817.exe
"C:\Users\Admin\AppData\Local\Temp\b3f61437898669f4eca20f5e25f235641961b2459d192f30bb54ad1d263d6817.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1760
- 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:2376
- 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:2968
- - 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:3064
  - - 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:2260
- C:\Users\Admin\AppData\Local\Temp\HD_b3f61437898669f4eca20f5e25f235641961b2459d192f30bb54ad1d263d6817.exe
  C:\Users\Admin\AppData\Local\Temp\HD_b3f61437898669f4eca20f5e25f235641961b2459d192f30bb54ad1d263d6817.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3032

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:1944

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:2152
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\259503607.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:1428

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:2144
- 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:2732

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_X.dat

Filesize
2.4MB

MD5
5ce4e8a6bc8aa2c82921686cc1d42dcb

SHA1
8160717fa50349840d9810a74c0e3d04e55f5de8

SHA256
f07447684d6bd9fbade4eed74d8ee83bcf46a2dbc2619b50338b3355654c1393

SHA512
b8c32d265633e74e662125b5310c8b27200d0517385fe80db112ba90d98dac5648fb6bd3d568840c0bd856ed8561ac2e4660a8d95961b1fdf4f696409699bb4b

Download Submit
C:\Users\Admin\AppData\Local\Temp\HD_b3f61437898669f4eca20f5e25f235641961b2459d192f30bb54ad1d263d6817.exe

Filesize
548KB

MD5
dc0222f1e0868c3612a93ba2d83b99be

SHA1
950f418121f47ecaeb48b185f4740b6dcd47b6a6

SHA256
6bc4497b86df521b413e4574f4cd4289c986348d2a69da1945ff1a1784db05db

SHA512
a6ace45e9f14e9fb8dc3bf84061d8292894423d2b2c42eb313dd0cad48bce1f077f2761fc8d1391dad21580a83fe6ff6a0353175cabc151e7fc95e2cf1082c41

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\259503607.txt

Filesize
899KB

MD5
cd9fc064d7308255437dc0cf655f0a0e

SHA1
a6ea1ee88343ef40c07571fa9139567f50d4477b

SHA256
dc8519a61b9a8cbfbba7c47c0bd8ea4afb07229a74c104b29490f24789761a1b

SHA512
021721e153fa0c404aa31d94e2b41a77935adac9ec098cfdf41be58ae7fd8f1bd51ba0cf84d350764584784cbfa8347d3becab7a48575c2772eceb02d4f9ba04

Download Submit
\Windows\SysWOW64\Remote Data.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/2732-44-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2732-49-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2968-20-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2968-21-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2968-18-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download