gh0strat | 977716c5d6db75f4da7992afa902225159a65065db37b6a9f6d8607fe8d1eb8d

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
21-11-2024 12:51

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General

Target

977716c5d6db75f4da7992afa902225159a65065db37b6a9f6d8607fe8d1eb8d.exe
Size

2.6MB
MD5

9dc67d0835d54a4d02343157ccef6ad9
SHA1

ad6b5bd80d2eb52335fee24718b1e3c73e5a3e72
SHA256

977716c5d6db75f4da7992afa902225159a65065db37b6a9f6d8607fe8d1eb8d
SHA512

58c4ef8f8be1460386a6a5bf4f02133b5e4ae56940908cea99d6e027d2a0c7f25407119332124ce22d4303aa6495e0f5872d8884b74010740df45a8f5f8a8f19
SSDEEP

24576:bCwsbKgbQ5NANIvGTYwMHXA+wT1kfTw4SIuvB74fgt7ibhRM5QhKehFdMtRj7nHf:bCwsbCANnKXferL7Vwe/Gg0P+WhViD

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 7 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/2736-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2736-21-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2852-42-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2852-43-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2852-44-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2852-47-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2852-49-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 8 IoCs

resource	yara_rule
behavioral1/files/0x0007000000019273-6.dat	family_gh0strat
behavioral1/memory/2736-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2736-21-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2852-42-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2852-43-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2852-44-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2852-47-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2852-49-0x0000000010000000-0x00000000101B6000-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\\259434405.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
1628	R.exe
2736	N.exe
2900	TXPlatfor.exe
2864	HD_977716c5d6db75f4da7992afa902225159a65065db37b6a9f6d8607fe8d1eb8d.exe
2852	TXPlatfor.exe
2244	Remote Data.exe

Loads dropped DLL 8 IoCs

pid	Process
2612	977716c5d6db75f4da7992afa902225159a65065db37b6a9f6d8607fe8d1eb8d.exe
1628	R.exe
2388	svchost.exe
2612	977716c5d6db75f4da7992afa902225159a65065db37b6a9f6d8607fe8d1eb8d.exe
2900	TXPlatfor.exe
2612	977716c5d6db75f4da7992afa902225159a65065db37b6a9f6d8607fe8d1eb8d.exe
2388	svchost.exe
2244	Remote Data.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
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
File created	C:\Windows\SysWOW64\259434405.txt	R.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2736-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2736-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2736-21-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2852-42-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2852-43-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2852-40-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2852-44-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2852-47-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2852-49-0x0000000010000000-0x00000000101B6000-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	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	977716c5d6db75f4da7992afa902225159a65065db37b6a9f6d8607fe8d1eb8d.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

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
2752	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
2612	977716c5d6db75f4da7992afa902225159a65065db37b6a9f6d8607fe8d1eb8d.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2852	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2736	N.exe
Token: SeLoadDriverPrivilege	2852	TXPlatfor.exe
Token: 33	2852	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2852	TXPlatfor.exe
Token: 33	2852	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2852	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2612	977716c5d6db75f4da7992afa902225159a65065db37b6a9f6d8607fe8d1eb8d.exe
2612	977716c5d6db75f4da7992afa902225159a65065db37b6a9f6d8607fe8d1eb8d.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 2612 wrote to memory of 1628	2612	977716c5d6db75f4da7992afa902225159a65065db37b6a9f6d8607fe8d1eb8d.exe	30
PID 2612 wrote to memory of 1628	2612	977716c5d6db75f4da7992afa902225159a65065db37b6a9f6d8607fe8d1eb8d.exe	30
PID 2612 wrote to memory of 1628	2612	977716c5d6db75f4da7992afa902225159a65065db37b6a9f6d8607fe8d1eb8d.exe	30
PID 2612 wrote to memory of 1628	2612	977716c5d6db75f4da7992afa902225159a65065db37b6a9f6d8607fe8d1eb8d.exe	30
PID 2612 wrote to memory of 2736	2612	977716c5d6db75f4da7992afa902225159a65065db37b6a9f6d8607fe8d1eb8d.exe	33
PID 2612 wrote to memory of 2736	2612	977716c5d6db75f4da7992afa902225159a65065db37b6a9f6d8607fe8d1eb8d.exe	33
PID 2612 wrote to memory of 2736	2612	977716c5d6db75f4da7992afa902225159a65065db37b6a9f6d8607fe8d1eb8d.exe	33
PID 2612 wrote to memory of 2736	2612	977716c5d6db75f4da7992afa902225159a65065db37b6a9f6d8607fe8d1eb8d.exe	33
PID 2612 wrote to memory of 2736	2612	977716c5d6db75f4da7992afa902225159a65065db37b6a9f6d8607fe8d1eb8d.exe	33
PID 2612 wrote to memory of 2736	2612	977716c5d6db75f4da7992afa902225159a65065db37b6a9f6d8607fe8d1eb8d.exe	33
PID 2612 wrote to memory of 2736	2612	977716c5d6db75f4da7992afa902225159a65065db37b6a9f6d8607fe8d1eb8d.exe	33
PID 2736 wrote to memory of 2752	2736	N.exe	35
PID 2736 wrote to memory of 2752	2736	N.exe	35
PID 2736 wrote to memory of 2752	2736	N.exe	35
PID 2736 wrote to memory of 2752	2736	N.exe	35
PID 2900 wrote to memory of 2852	2900	TXPlatfor.exe	36
PID 2900 wrote to memory of 2852	2900	TXPlatfor.exe	36
PID 2900 wrote to memory of 2852	2900	TXPlatfor.exe	36
PID 2900 wrote to memory of 2852	2900	TXPlatfor.exe	36
PID 2900 wrote to memory of 2852	2900	TXPlatfor.exe	36
PID 2900 wrote to memory of 2852	2900	TXPlatfor.exe	36
PID 2900 wrote to memory of 2852	2900	TXPlatfor.exe	36
PID 2612 wrote to memory of 2864	2612	977716c5d6db75f4da7992afa902225159a65065db37b6a9f6d8607fe8d1eb8d.exe	37
PID 2612 wrote to memory of 2864	2612	977716c5d6db75f4da7992afa902225159a65065db37b6a9f6d8607fe8d1eb8d.exe	37
PID 2612 wrote to memory of 2864	2612	977716c5d6db75f4da7992afa902225159a65065db37b6a9f6d8607fe8d1eb8d.exe	37
PID 2612 wrote to memory of 2864	2612	977716c5d6db75f4da7992afa902225159a65065db37b6a9f6d8607fe8d1eb8d.exe	37
PID 2752 wrote to memory of 2648	2752	cmd.exe	40
PID 2752 wrote to memory of 2648	2752	cmd.exe	40
PID 2752 wrote to memory of 2648	2752	cmd.exe	40
PID 2752 wrote to memory of 2648	2752	cmd.exe	40
PID 2388 wrote to memory of 2244	2388	svchost.exe	41
PID 2388 wrote to memory of 2244	2388	svchost.exe	41
PID 2388 wrote to memory of 2244	2388	svchost.exe	41
PID 2388 wrote to memory of 2244	2388	svchost.exe	41

C:\Users\Admin\AppData\Local\Temp\977716c5d6db75f4da7992afa902225159a65065db37b6a9f6d8607fe8d1eb8d.exe
"C:\Users\Admin\AppData\Local\Temp\977716c5d6db75f4da7992afa902225159a65065db37b6a9f6d8607fe8d1eb8d.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2612
- 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:1628
- 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:2736
- - 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:2752
  - - 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_977716c5d6db75f4da7992afa902225159a65065db37b6a9f6d8607fe8d1eb8d.exe
  C:\Users\Admin\AppData\Local\Temp\HD_977716c5d6db75f4da7992afa902225159a65065db37b6a9f6d8607fe8d1eb8d.exe
  2⤵
  - Executes dropped EXE
  PID:2864

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:1796

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:2388
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\259434405.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2244

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:2900
- 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:2852

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_977716c5d6db75f4da7992afa902225159a65065db37b6a9f6d8607fe8d1eb8d.exe

Filesize
9KB

MD5
3613d8d83b78ce3561680a447eb6a24a

SHA1
995eb0e883c7adebcfadd29100d810cb7f882bcd

SHA256
8fdff52a7430dba14fb97239c7fe414710991f16da269374e0936a1385f3a318

SHA512
92161e7bc71f686c5fb0fa1bb78965e5bddff15d35ca8df9ae3fe2cdc0934b7cb5e1d47b6a5237df04d6d448cdeb2b6b74fba60e28cb55cd3d9e29cfc00cac40

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

Filesize
2.5MB

MD5
c4b5fdf92ad5b5e7d8d8df0648cb8044

SHA1
54189d8c5cba249b57fd6a63e35f8d04675478f4

SHA256
03ae5aaef1dc79c45eedd14698e221533735d829bf172cbd1049219e60e1ff0c

SHA512
5ff11d8e2c83f5176499815b04f2ca2164cdd4933a5e359f97f10b0ac3899b59cab642a72a26a12c8eeba89d398651a550d79e0d5ca9928de00b240a0d85b84e

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

Filesize
377KB

MD5
4a36a48e58829c22381572b2040b6fe0

SHA1
f09d30e44ff7e3f20a5de307720f3ad148c6143b

SHA256
3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8

SHA512
5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0

Download Submit
C:\Windows\SysWOW64\Remote Data.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

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

Filesize
941KB

MD5
8dc3adf1c490211971c1e2325f1424d2

SHA1
4eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5

SHA256
bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c

SHA512
ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d

Download Submit
\Windows\SysWOW64\259434405.txt

Filesize
899KB

MD5
92653689b8e26e4c9cb773ec95a6c840

SHA1
9508b8c90eb1859f5d4df8d4089206790a90bef2

SHA256
619d53919dfc8e35dcbf93390c35f2eb6540cd8d5a37c371fda6251248c00469

SHA512
6c3426f0383bc5ffdd5823656b5ec6872a88d31e14ca59989ec5621e64cf119197a6ac609d8577ec5b406e3dda4adbd57948e0e687cf82dd13e9611e6dfdcb7f

Download Submit
memory/2736-18-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2736-21-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2736-20-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2852-42-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2852-43-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2852-40-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2852-44-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2852-47-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2852-49-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download