gh0strat | 4477bdb5901d365366d6fb69c28621d19155d579240ee7f248c01ba5c6b50633

Analysis

max time kernel
150s
max time network
19s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
03-12-2024 16:10

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General

Target

4477bdb5901d365366d6fb69c28621d19155d579240ee7f248c01ba5c6b50633.exe
Size

10.7MB
MD5

fc3aeb4053d0a0ce3c3d6b737f5bfc17
SHA1

828479fe608e98cc10668f1c2d4c19e75ad70d4f
SHA256

4477bdb5901d365366d6fb69c28621d19155d579240ee7f248c01ba5c6b50633
SHA512

51bbad1d481741a58bb0a1f853e5b7a06c3b3c1b0046b1863e5fb6eaeebb01430b8aa04ca574531588e3aea6330bfe7b7777af07acbdb0114c6e02126da175d0
SSDEEP

196608:FKXbeO7k17WaHo7jA8/sQWsSxACKPXGb5KZt7QZsumIL27N0ZcPpIBHpIBeO:u78WaHo7EbAPebQZdcsuO

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/2348-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2348-21-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2988-42-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2988-48-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2988-49-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 6 IoCs

resource	yara_rule
behavioral1/files/0x00070000000195d6-6.dat	family_gh0strat
behavioral1/memory/2348-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2348-21-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2988-42-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2988-48-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2988-49-0x0000000010000000-0x00000000101B6000-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\\259509784.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
380	R.exe
2348	N.exe
3060	TXPlatfor.exe
2988	TXPlatfor.exe
3032	HD_4477bdb5901d365366d6fb69c28621d19155d579240ee7f248c01ba5c6b50633.exe
1428	Remote Data.exe

Loads dropped DLL 8 IoCs

pid	Process
2300	4477bdb5901d365366d6fb69c28621d19155d579240ee7f248c01ba5c6b50633.exe
380	R.exe
2840	svchost.exe
2300	4477bdb5901d365366d6fb69c28621d19155d579240ee7f248c01ba5c6b50633.exe
3060	TXPlatfor.exe
2300	4477bdb5901d365366d6fb69c28621d19155d579240ee7f248c01ba5c6b50633.exe
2840	svchost.exe
1428	Remote Data.exe

Drops file in System32 directory 6 IoCs

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\259509784.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

resource	yara_rule
behavioral1/memory/2348-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2348-21-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2348-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2988-42-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2988-48-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2988-49-0x0000000010000000-0x00000000101B6000-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

description	ioc	Process
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	4477bdb5901d365366d6fb69c28621d19155d579240ee7f248c01ba5c6b50633.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
580	cmd.exe
2648	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2648	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2300	4477bdb5901d365366d6fb69c28621d19155d579240ee7f248c01ba5c6b50633.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2988	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2348	N.exe
Token: SeLoadDriverPrivilege	2988	TXPlatfor.exe
Token: 33	2988	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2988	TXPlatfor.exe
Token: 33	2988	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2988	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2300	4477bdb5901d365366d6fb69c28621d19155d579240ee7f248c01ba5c6b50633.exe
2300	4477bdb5901d365366d6fb69c28621d19155d579240ee7f248c01ba5c6b50633.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 2300 wrote to memory of 380	2300	4477bdb5901d365366d6fb69c28621d19155d579240ee7f248c01ba5c6b50633.exe	30
PID 2300 wrote to memory of 380	2300	4477bdb5901d365366d6fb69c28621d19155d579240ee7f248c01ba5c6b50633.exe	30
PID 2300 wrote to memory of 380	2300	4477bdb5901d365366d6fb69c28621d19155d579240ee7f248c01ba5c6b50633.exe	30
PID 2300 wrote to memory of 380	2300	4477bdb5901d365366d6fb69c28621d19155d579240ee7f248c01ba5c6b50633.exe	30
PID 2300 wrote to memory of 2348	2300	4477bdb5901d365366d6fb69c28621d19155d579240ee7f248c01ba5c6b50633.exe	33
PID 2300 wrote to memory of 2348	2300	4477bdb5901d365366d6fb69c28621d19155d579240ee7f248c01ba5c6b50633.exe	33
PID 2300 wrote to memory of 2348	2300	4477bdb5901d365366d6fb69c28621d19155d579240ee7f248c01ba5c6b50633.exe	33
PID 2300 wrote to memory of 2348	2300	4477bdb5901d365366d6fb69c28621d19155d579240ee7f248c01ba5c6b50633.exe	33
PID 2300 wrote to memory of 2348	2300	4477bdb5901d365366d6fb69c28621d19155d579240ee7f248c01ba5c6b50633.exe	33
PID 2300 wrote to memory of 2348	2300	4477bdb5901d365366d6fb69c28621d19155d579240ee7f248c01ba5c6b50633.exe	33
PID 2300 wrote to memory of 2348	2300	4477bdb5901d365366d6fb69c28621d19155d579240ee7f248c01ba5c6b50633.exe	33
PID 2348 wrote to memory of 580	2348	N.exe	35
PID 2348 wrote to memory of 580	2348	N.exe	35
PID 2348 wrote to memory of 580	2348	N.exe	35
PID 2348 wrote to memory of 580	2348	N.exe	35
PID 3060 wrote to memory of 2988	3060	TXPlatfor.exe	37
PID 3060 wrote to memory of 2988	3060	TXPlatfor.exe	37
PID 3060 wrote to memory of 2988	3060	TXPlatfor.exe	37
PID 3060 wrote to memory of 2988	3060	TXPlatfor.exe	37
PID 3060 wrote to memory of 2988	3060	TXPlatfor.exe	37
PID 3060 wrote to memory of 2988	3060	TXPlatfor.exe	37
PID 3060 wrote to memory of 2988	3060	TXPlatfor.exe	37
PID 2300 wrote to memory of 3032	2300	4477bdb5901d365366d6fb69c28621d19155d579240ee7f248c01ba5c6b50633.exe	38
PID 2300 wrote to memory of 3032	2300	4477bdb5901d365366d6fb69c28621d19155d579240ee7f248c01ba5c6b50633.exe	38
PID 2300 wrote to memory of 3032	2300	4477bdb5901d365366d6fb69c28621d19155d579240ee7f248c01ba5c6b50633.exe	38
PID 2300 wrote to memory of 3032	2300	4477bdb5901d365366d6fb69c28621d19155d579240ee7f248c01ba5c6b50633.exe	38
PID 580 wrote to memory of 2648	580	cmd.exe	39
PID 580 wrote to memory of 2648	580	cmd.exe	39
PID 580 wrote to memory of 2648	580	cmd.exe	39
PID 580 wrote to memory of 2648	580	cmd.exe	39
PID 2840 wrote to memory of 1428	2840	svchost.exe	40
PID 2840 wrote to memory of 1428	2840	svchost.exe	40
PID 2840 wrote to memory of 1428	2840	svchost.exe	40
PID 2840 wrote to memory of 1428	2840	svchost.exe	40

C:\Users\Admin\AppData\Local\Temp\4477bdb5901d365366d6fb69c28621d19155d579240ee7f248c01ba5c6b50633.exe
"C:\Users\Admin\AppData\Local\Temp\4477bdb5901d365366d6fb69c28621d19155d579240ee7f248c01ba5c6b50633.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2300
- 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:380
- 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:2348
- - 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:580
  - - 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:2648
- C:\Users\Admin\AppData\Local\Temp\HD_4477bdb5901d365366d6fb69c28621d19155d579240ee7f248c01ba5c6b50633.exe
  C:\Users\Admin\AppData\Local\Temp\HD_4477bdb5901d365366d6fb69c28621d19155d579240ee7f248c01ba5c6b50633.exe
  2⤵
  - Executes dropped EXE
  PID:3032

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:484

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:2840
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\259509784.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: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:2988

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_4477bdb5901d365366d6fb69c28621d19155d579240ee7f248c01ba5c6b50633.exe

Filesize
8.0MB

MD5
5ae0d718fabf58cd9cbeaabc8e33b1cb

SHA1
c2a39606de57f2700056e9497ef7c8ec82d3c911

SHA256
48f1926dfdc8657eb14e3cd917fe0b129373caaaf2703984f467fd5eb6d19887

SHA512
f7922c7432af25e2939bc6a5e9d09505723a3c5da24848951f2706cd2f7d6741e75ba35a1ab91a462df210f1e1b646b862b1ce00541a42fcdc96b82a548a57ec

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

Filesize
2.7MB

MD5
684eedd82cdc00e67bb1626880dfacca

SHA1
67c2732bb437d29e5a525ee96746ab0a1fc6b052

SHA256
bb329ea3ada4b42cac6214d0f67fa7d9baeb31541bf3128bb62fdab394e8cee5

SHA512
2df96c53cf364d81b2b8854566c68b5e76f0e26d936d9e9f05c0ce8c39798e7596fc9ca669b6904d082ac2f95066b121f68195c2ee5d4fa2ca9129208846f878

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\259509784.txt

Filesize
899KB

MD5
82dad0cc2d6c0ffa230247bce04db3fd

SHA1
0bb0b849914f8738e942f9ea769c4b9c176f70b5

SHA256
fad1a1e6070d8e1962e24c7f9d9c0fab12bc7953df1341a3b601557718742d7c

SHA512
dbcba5896d41578c48d6763e08ff5db17209e3f7046a282eed256bcf9898dbd2f85a9e2364a1084506246727796b04bbebdbde66db86c78ca4510879f3a87485

Download Submit
\Windows\SysWOW64\Remote Data.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/2348-20-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2348-21-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2348-18-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2988-42-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2988-48-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2988-49-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download