gh0strat | 15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9

Analysis

max time kernel
150s
max time network
119s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
27-08-2024 02:01

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General

Target

15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9.exe
Size

4.9MB
MD5

436477f4a5849e76d247f0597d63f842
SHA1

9e1eacef6d5b750b91a2abfbe5c06afdea51d2c5
SHA256

15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9
SHA512

a580c961ac93959543d1c421f1ae7b4a92958716c2316591eb0532906963bf4422490bb3ab8ae7e57a0af3eaf71c07dd34dbeffbe8d03d33bd7573286f314fc9
SSDEEP

98304:pGdVyVT9nOgmhQlDmn2fbXsPN5kiQaZ56:2WT9nO7CJmnX5VP6

Score

10^/10

gh0strat purplefox discovery persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 8 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral1/memory/3052-8-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/3052-9-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/3052-7-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2776-26-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2200-31-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2200-37-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2200-39-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2200-79-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 9 IoCs

resource	yara_rule
behavioral1/memory/3052-8-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/3052-9-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/3052-7-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2776-26-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2200-31-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2200-37-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2200-39-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/files/0x00070000000160ab-33.dat	family_gh0strat
behavioral1/memory/2200-79-0x0000000010000000-0x00000000101B6000-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	TXPlatforn.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"	TXPlatforn.exe

Executes dropped EXE 5 IoCs

pid	Process
3052	svchost.exe
2776	TXPlatforn.exe
2200	TXPlatforn.exe
2804	svchos.exe
2568	HD_15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9.exe

Loads dropped DLL 5 IoCs

pid	Process
2488	15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9.exe
2776	TXPlatforn.exe
2488	15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9.exe
2804	svchos.exe
2488	15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3052-5-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/3052-8-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/3052-9-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/3052-7-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2776-26-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2200-31-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2200-37-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2200-39-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2200-79-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\TXPlatforn.exe	svchost.exe
File created	C:\Windows\SysWOW64\259467243.txt	svchos.exe
File created	C:\Windows\SysWOW64\TXPlatforn.exe	svchost.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe	15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9.exe
File created	C:\Program Files (x86)\Google\Chrome\Application\chrome.exe	15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9.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 7 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TXPlatforn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchos.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HD_15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9.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
2788	cmd.exe
2408	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2408	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2488	15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
2200	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3052	svchost.exe
Token: SeLoadDriverPrivilege	2200	TXPlatforn.exe
Token: 33	2200	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2200	TXPlatforn.exe
Token: 33	2200	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2200	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2488	15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9.exe
2488	15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2488 wrote to memory of 3052	2488	15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9.exe	30
PID 2488 wrote to memory of 3052	2488	15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9.exe	30
PID 2488 wrote to memory of 3052	2488	15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9.exe	30
PID 2488 wrote to memory of 3052	2488	15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9.exe	30
PID 2488 wrote to memory of 3052	2488	15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9.exe	30
PID 2488 wrote to memory of 3052	2488	15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9.exe	30
PID 2488 wrote to memory of 3052	2488	15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9.exe	30
PID 3052 wrote to memory of 2788	3052	svchost.exe	32
PID 3052 wrote to memory of 2788	3052	svchost.exe	32
PID 3052 wrote to memory of 2788	3052	svchost.exe	32
PID 3052 wrote to memory of 2788	3052	svchost.exe	32
PID 2776 wrote to memory of 2200	2776	TXPlatforn.exe	33
PID 2776 wrote to memory of 2200	2776	TXPlatforn.exe	33
PID 2776 wrote to memory of 2200	2776	TXPlatforn.exe	33
PID 2776 wrote to memory of 2200	2776	TXPlatforn.exe	33
PID 2776 wrote to memory of 2200	2776	TXPlatforn.exe	33
PID 2776 wrote to memory of 2200	2776	TXPlatforn.exe	33
PID 2776 wrote to memory of 2200	2776	TXPlatforn.exe	33
PID 2488 wrote to memory of 2804	2488	15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9.exe	35
PID 2488 wrote to memory of 2804	2488	15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9.exe	35
PID 2488 wrote to memory of 2804	2488	15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9.exe	35
PID 2488 wrote to memory of 2804	2488	15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9.exe	35
PID 2488 wrote to memory of 2568	2488	15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9.exe	36
PID 2488 wrote to memory of 2568	2488	15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9.exe	36
PID 2488 wrote to memory of 2568	2488	15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9.exe	36
PID 2488 wrote to memory of 2568	2488	15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9.exe	36
PID 2788 wrote to memory of 2408	2788	cmd.exe	37
PID 2788 wrote to memory of 2408	2788	cmd.exe	37
PID 2788 wrote to memory of 2408	2788	cmd.exe	37
PID 2788 wrote to memory of 2408	2788	cmd.exe	37

C:\Users\Admin\AppData\Local\Temp\15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9.exe
"C:\Users\Admin\AppData\Local\Temp\15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2488
- C:\Users\Admin\AppData\Local\Temp\svchost.exe
  C:\Users\Admin\AppData\Local\Temp\\svchost.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:3052
- - 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\svchost.exe > nul
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:2788
  - - 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:2408
- C:\Users\Admin\AppData\Local\Temp\svchos.exe
  C:\Users\Admin\AppData\Local\Temp\\svchos.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  PID:2804
- C:\Users\Admin\AppData\Local\Temp\HD_15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9.exe
  C:\Users\Admin\AppData\Local\Temp\HD_15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2568

C:\Windows\SysWOW64\TXPlatforn.exe
C:\Windows\SysWOW64\TXPlatforn.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2776
- C:\Windows\SysWOW64\TXPlatforn.exe
  C:\Windows\SysWOW64\TXPlatforn.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:2200

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

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_15b95a71dd1de5c0f7fc255d1b84463a308aa61ea74d032ff597cf199ac56ab9.exe

Filesize
3.1MB

MD5
fb083acd60fe5c3156dc25442be815e3

SHA1
61df59b8f3ebd8b3d29ca3aedc4995e23cacf6d8

SHA256
f130b3789962d5c8b59aa250d6f26ad5945928f3905b32bf65aa7bd30348a794

SHA512
7147337d2c1006bb15cfa967c9eea6826b63c8d343f866e7454d7368d25019f39e52cf179500810834244c3ca9644d6c0df0b2c3128a9051e9ee6b428fa926f6

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

Filesize
1.8MB

MD5
04cac2a1373014b29cbff9b2b26984bd

SHA1
53132e83948344ffebe2e0e3279803f54d415614

SHA256
1ef32418338607938bd0735c82d01434a44b96058710e5b91e48493a45ee394a

SHA512
5cf40cca72f3e384851908eb34ddece05bfc65a1f789e7dc0a015f905e17c6082908856f0ea7bad7ef5546ad6750aa8749c8b668c35d27d563c39027fba7998a

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

Filesize
93KB

MD5
3b377ad877a942ec9f60ea285f7119a2

SHA1
60b23987b20d913982f723ab375eef50fafa6c70

SHA256
62954fdf65e629b39a29f539619d20691332184c6b6be5a826128a8e759bfa84

SHA512
af3a71f867ad9d28772c48b521097f9bf8931eb89fd2974e8de10990241419a39ddc3c0b36dd38aac4fdf14e1f0c5e228692618e93adce958d5b5dab8940e46f

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

Filesize
377KB

MD5
a4329177954d4104005bce3020e5ef59

SHA1
23c29e295e2dbb8454012d619ca3f81e4c16e85a

SHA256
6156d003d54dcf2ee92f21bd6e7a6a7f91730bd2804381260bcabe465abe6ddd

SHA512
81e9d456a4abfc7cd9e0943d4a0ce15523362c3179f3368381d1d7974f80a9f9113b5404b96e67e91684e0ea1895b7d0073e4c48d0bfc4fd0244b1af6acf0208

Download Submit
\Windows\SysWOW64\259467243.txt

Filesize
50KB

MD5
271378498ceb8a33dab715ad827341fd

SHA1
f9ece2f62c44b1a8e0a73f3c8157b4657ac64339

SHA256
e226b1dd796ee29f189a5de86dbef2d8813e1437c0f36b920e33c8c30039d804

SHA512
0642e13ed21bcbbc1e778dcce95903b7fe20c04ada0aedfe7820201eeabeb5fabc7763315bc063a02cb25c2da2070ee78b9924142aa76f0394ed2e4cad35fd6b

Download Submit
memory/2200-39-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2200-79-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2200-31-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2200-37-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2776-26-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3052-7-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3052-9-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3052-8-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3052-5-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download