gh0strat | 53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89

Analysis

max time kernel
150s
max time network
152s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13-11-2024 16:23

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General

Target

53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe
Size

2.7MB
MD5

a1de0fac5ed758e59f14ac0a9a0db13d
SHA1

90bbb053c1e887a8bce92cb489f06835b2e20146
SHA256

53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89
SHA512

2f3e5f9278b2c11c2832a70c2f5e8b1dcaad501ad6488b583d8493bb3b006fb93b1cbb2f63bed2fff599a202a6b2ab597d3df39032add883d5f931154f300f04
SSDEEP

49152:ZCwsbCANnKXferL7Vwe/Gg0P+WhODmn2:Uws2ANnKXOaeOgmhODmn2

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/2084-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2084-21-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2720-46-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2720-50-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2720-51-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 6 IoCs

resource	yara_rule
behavioral1/files/0x0008000000016dbe-6.dat	family_gh0strat
behavioral1/memory/2084-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2084-21-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2720-46-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2720-50-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2720-51-0x0000000010000000-0x00000000101B6000-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\\259442548.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
1036	R.exe
2084	N.exe
3056	TXPlatfor.exe
2720	TXPlatfor.exe
2832	HD_53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe
2292	Remote Data.exe

Loads dropped DLL 9 IoCs

pid	Process
2552	53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe
1036	R.exe
1672	svchost.exe
2552	53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe
3056	TXPlatfor.exe
2552	53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe
2552	53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe
1672	svchost.exe
2292	Remote Data.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
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\259442548.txt	R.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	R.exe
File created	C:\Windows\SysWOW64\Remote Data.exe	svchost.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2084-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2084-21-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2084-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2720-46-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2720-50-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2720-51-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2832-54-0x0000000010000000-0x000000001005D000-memory.dmp	upx
behavioral1/memory/2832-58-0x0000000010000000-0x000000001005D000-memory.dmp	upx
behavioral1/memory/2832-57-0x0000000010000000-0x000000001005D000-memory.dmp	upx
behavioral1/memory/2832-59-0x0000000010000000-0x000000001005D000-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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	R.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	HD_53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.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
2272	cmd.exe
2904	PING.EXE

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\SYSTEM\CENTRALPROCESSOR\0	HD_53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CENTRALPROCESSOR\0\~MHZ	HD_53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2904	PING.EXE

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2552	53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe
2832	HD_53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe
2832	HD_53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe
2832	HD_53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe
2832	HD_53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe
2832	HD_53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe
2832	HD_53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2720	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2084	N.exe
Token: SeLoadDriverPrivilege	2720	TXPlatfor.exe
Token: 33	2720	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2720	TXPlatfor.exe
Token: 33	2720	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	2720	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2552	53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe
2552	53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 2552 wrote to memory of 1036	2552	53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe	30
PID 2552 wrote to memory of 1036	2552	53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe	30
PID 2552 wrote to memory of 1036	2552	53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe	30
PID 2552 wrote to memory of 1036	2552	53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe	30
PID 2552 wrote to memory of 2084	2552	53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe	33
PID 2552 wrote to memory of 2084	2552	53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe	33
PID 2552 wrote to memory of 2084	2552	53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe	33
PID 2552 wrote to memory of 2084	2552	53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe	33
PID 2552 wrote to memory of 2084	2552	53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe	33
PID 2552 wrote to memory of 2084	2552	53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe	33
PID 2552 wrote to memory of 2084	2552	53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe	33
PID 2084 wrote to memory of 2272	2084	N.exe	35
PID 2084 wrote to memory of 2272	2084	N.exe	35
PID 2084 wrote to memory of 2272	2084	N.exe	35
PID 2084 wrote to memory of 2272	2084	N.exe	35
PID 3056 wrote to memory of 2720	3056	TXPlatfor.exe	36
PID 3056 wrote to memory of 2720	3056	TXPlatfor.exe	36
PID 3056 wrote to memory of 2720	3056	TXPlatfor.exe	36
PID 3056 wrote to memory of 2720	3056	TXPlatfor.exe	36
PID 3056 wrote to memory of 2720	3056	TXPlatfor.exe	36
PID 3056 wrote to memory of 2720	3056	TXPlatfor.exe	36
PID 3056 wrote to memory of 2720	3056	TXPlatfor.exe	36
PID 2552 wrote to memory of 2832	2552	53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe	38
PID 2552 wrote to memory of 2832	2552	53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe	38
PID 2552 wrote to memory of 2832	2552	53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe	38
PID 2552 wrote to memory of 2832	2552	53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe	38
PID 2272 wrote to memory of 2904	2272	cmd.exe	39
PID 2272 wrote to memory of 2904	2272	cmd.exe	39
PID 2272 wrote to memory of 2904	2272	cmd.exe	39
PID 2272 wrote to memory of 2904	2272	cmd.exe	39
PID 1672 wrote to memory of 2292	1672	svchost.exe	41
PID 1672 wrote to memory of 2292	1672	svchost.exe	41
PID 1672 wrote to memory of 2292	1672	svchost.exe	41
PID 1672 wrote to memory of 2292	1672	svchost.exe	41

C:\Users\Admin\AppData\Local\Temp\53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe
"C:\Users\Admin\AppData\Local\Temp\53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2552
- 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:1036
- 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:2084
- - 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:2272
  - - 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:2904
- C:\Users\Admin\AppData\Local\Temp\HD_53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe
  C:\Users\Admin\AppData\Local\Temp\HD_53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:2832

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:1792

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:1672
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\259442548.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2292

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:3056
- 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:2720

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

Query Registry

T1012

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

Loading Replay Monitor...

Downloads

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

Filesize
2.7MB

MD5
377408ab980ed183eaeca42cdd6a624e

SHA1
186b20b0a44906232151a265a462b95fb5310ee2

SHA256
6d5c2560e1eee8d2b23bf959cdc0180318bf9c34104b8a58db07853e322a4dfe

SHA512
abb51ddc503c67bc14fac44a30183f5320ed24f2b2a80d87ca6151aa36bf96d07b9bd9049f7a993e6a15214d8509c2ff62a730102afe9c1bcf032f981cacd323

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

Filesize
377KB

MD5
4a36a48e58829c22381572b2040b6fe0

SHA1
f09d30e44ff7e3f20a5de307720f3ad148c6143b

SHA256
3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8

SHA512
5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0

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

Filesize
941KB

MD5
8dc3adf1c490211971c1e2325f1424d2

SHA1
4eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5

SHA256
bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c

SHA512
ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d

Download Submit
\Users\Admin\AppData\Local\Temp\HD_53b4c7f88741a3cc3cb2584c238700453198878f3072bbc8d167a4cd1f37fc89.exe

Filesize
67KB

MD5
0a27265d16dd5ed825067623da1a8a86

SHA1
0de758832e18910548b4e0b77263b9356e8cdad7

SHA256
7166733bd9e0417e234c018c279aefe6f121b3f2bb007cb523ce9f38ffe198e8

SHA512
10a371ba2592934d1897a812e1f6255f3f6946f8042f416d0177c6a9a6871583423cf92e00a1ee3837793f8589cd4247390f70ff748f0a4c995f71d8d47c3cdf

Download Submit
\Windows\SysWOW64\259442548.txt

Filesize
899KB

MD5
22cf2a8309d13c4b5db147ce627ac30f

SHA1
a72cc67d543eb98029c20bb116aee45b4fa50614

SHA256
f92fa3b7af8613148587a4c6334154bbea2d89fe04f4019d28f2f24d5fd85389

SHA512
803323bdab8e7eebe4f92ba730c6926fb13f46e51af1a76195887138dc1789acc98232d363510df76fd0b8911c7d2ecc0eefea8ef726aaae0ef1f3b9966ed8c3

Download Submit
\Windows\SysWOW64\Remote Data.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/2084-20-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2084-21-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2084-18-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2720-50-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2720-51-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2720-46-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2832-53-0x0000000000440000-0x0000000000441000-memory.dmp

Filesize
4KB

Download
memory/2832-54-0x0000000010000000-0x000000001005D000-memory.dmp

Filesize
372KB

Download
memory/2832-58-0x0000000010000000-0x000000001005D000-memory.dmp

Filesize
372KB

Download
memory/2832-57-0x0000000010000000-0x000000001005D000-memory.dmp

Filesize
372KB

Download
memory/2832-59-0x0000000010000000-0x000000001005D000-memory.dmp

Filesize
372KB

Download