gh0strat | 7938ebd95af12e47bfc585c6b375fd41ba23387652f23db2425d060e557cdf1c

Analysis

max time kernel
105s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
06/06/2024, 03:38

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General

Target
7938ebd95af12e47bfc585c6b375fd41ba23387652f23db2425d060e557cdf1c.exe
Size 1.4MB
Sample240606-d64qjsgf53
SHA256 7938ebd95af12e47bfc585c6b375fd41ba23387652f23db2425d060e557cdf1c
MD5 9ed7195640d8afc33780e21743bc6611
SHA1 cb4757855c653bfd16731d3e09112142eaab557e
SHA512 65d836adc13e647631617492aeba245afb6cf28f91f9699d7b47be7fca844d22270d6b6fc220d38bc931056e403ecb9d06f6a3ac3a14d8f76ec754f489229f4d
SSDEEP 24576:v09tv9/7JtDElDEExIko2H2HESq2eWJ6MQjySjy+9J51Dfun2j:v09XJt4HIN2H2tFvduySdPDmn2j
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 9 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/2436-7-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2436-8-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/2436-18-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1212-27-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3968-24-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3968-17-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1212-55-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3968-16-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3968-15-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 9 IoCs

resource	yara_rule
behavioral2/memory/2436-7-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2436-8-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/2436-18-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1212-27-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3968-24-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3968-17-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1212-55-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3968-16-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3968-15-0x0000000010000000-0x00000000101B6000-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 3 IoCs

pid	Process
2436	RVN.exe
3968	TXPlatforn.exe
1212	TXPlatforn.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2436-7-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2436-8-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3968-13-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2436-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1212-27-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3968-24-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3968-17-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1212-55-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3968-16-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3968-15-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\TXPlatforn.exe	RVN.exe
File opened for modification	C:\Windows\SysWOW64\TXPlatforn.exe	RVN.exe

Drops file in Program Files directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe	7938ebd95af12e47bfc585c6b375fd41ba23387652f23db2425d060e557cdf1c.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	7938ebd95af12e47bfc585c6b375fd41ba23387652f23db2425d060e557cdf1c.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	7938ebd95af12e47bfc585c6b375fd41ba23387652f23db2425d060e557cdf1c.exe
File created	C:\Program Files (x86)\Google\Chrome\Application\chrome.exe	7938ebd95af12e47bfc585c6b375fd41ba23387652f23db2425d060e557cdf1c.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	7938ebd95af12e47bfc585c6b375fd41ba23387652f23db2425d060e557cdf1c.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2448	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1396	7938ebd95af12e47bfc585c6b375fd41ba23387652f23db2425d060e557cdf1c.exe
1396	7938ebd95af12e47bfc585c6b375fd41ba23387652f23db2425d060e557cdf1c.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
1212	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2436	RVN.exe
Token: SeLoadDriverPrivilege	1212	TXPlatforn.exe
Token: 33	1212	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	1212	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1396	7938ebd95af12e47bfc585c6b375fd41ba23387652f23db2425d060e557cdf1c.exe
1396	7938ebd95af12e47bfc585c6b375fd41ba23387652f23db2425d060e557cdf1c.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1396 wrote to memory of 2436	1396	7938ebd95af12e47bfc585c6b375fd41ba23387652f23db2425d060e557cdf1c.exe	83
PID 1396 wrote to memory of 2436	1396	7938ebd95af12e47bfc585c6b375fd41ba23387652f23db2425d060e557cdf1c.exe	83
PID 1396 wrote to memory of 2436	1396	7938ebd95af12e47bfc585c6b375fd41ba23387652f23db2425d060e557cdf1c.exe	83
PID 2436 wrote to memory of 5068	2436	RVN.exe	85
PID 2436 wrote to memory of 5068	2436	RVN.exe	85
PID 2436 wrote to memory of 5068	2436	RVN.exe	85
PID 3968 wrote to memory of 1212	3968	TXPlatforn.exe	86
PID 3968 wrote to memory of 1212	3968	TXPlatforn.exe	86
PID 3968 wrote to memory of 1212	3968	TXPlatforn.exe	86
PID 5068 wrote to memory of 2448	5068	cmd.exe	89
PID 5068 wrote to memory of 2448	5068	cmd.exe	89
PID 5068 wrote to memory of 2448	5068	cmd.exe	89

C:\Users\Admin\AppData\Local\Temp\7938ebd95af12e47bfc585c6b375fd41ba23387652f23db2425d060e557cdf1c.exe
"C:\Users\Admin\AppData\Local\Temp\7938ebd95af12e47bfc585c6b375fd41ba23387652f23db2425d060e557cdf1c.exe"
1⤵
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1396
- C:\Users\Admin\AppData\Local\Temp\RVN.exe
  C:\Users\Admin\AppData\Local\Temp\\RVN.exe
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2436
- - 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\RVN.exe > nul
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:5068
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:2448

C:\Windows\SysWOW64\TXPlatforn.exe
C:\Windows\SysWOW64\TXPlatforn.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3968
- 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:1212

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

RCX5227.tmp

Path C:\Users\Admin\AppData\Local\Temp\RCX5227.tmp
Size 1.4MB
SHA256 103056df581bdcaa921ea6738d0981ffc22b3efbe549a6c41043e4881c05daf5
MD5 ad841a7d2972fc6170d1bb5432340b3d
SHA1 bdf1541d48e36b301f40d6b875efe55e9ba7c8a2
SHA512 0e4e61eb3bd603d8f9f11fb32ac119aa3ac213fc9977ac5c287a97ebfade1001b4d0df0f3f91633e17d9ff55c805fb7d6e84c7e341ca6f4fba7b346a206b82e6
SSDEEP 24576:v09tv9/7JtDElDEExIko2H2HESq2eWJ6MQjySjy+9J51Dfun2T:v09XJt4HIN2H2tFvduySdPDmn2T
MD5 SHA1 SHA512 SSDEEP

Submit Download

RVN.exe

Path C:\Users\Admin\AppData\Local\Temp\RVN.exe
Size 377KB
SHA256 57a920389c044e3f5cf93dabff67070b4511e79779b6f874e08f92d8b0d7afbd
MD5 80ade1893dec9cab7f2e63538a464fcc
SHA1 c06614da33a65eddb506db00a124a3fc3f5be02e
SHA512 fffd4f3fccb5301b3c7a5b3bd92747f31549fbd9d0803fe5d502d1bb0ef979140988718c2ee1406ed3e755790d275185e120a56cbcb5ed2eadf62b5cdbfc4cc4
SSDEEP 6144:BEo7J1ixs4uVKE9rFEAHKThrBSq2hAzSM5mDo9lSJULHZqExlD2E1LxhJVwIe0Dy:Wo2HQVWAHkFSq2hAWJYlMUtrxlyuJVRq
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/1212-25-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/1212-27-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/1212-55-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2436-4-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2436-18-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2436-8-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/2436-7-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3968-13-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3968-24-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3968-17-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3968-16-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3968-15-0x0000000010000000-0x00000000101B6000-memory.dmp

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