gh0strat | abd6772c202d80440564042d40dce76899d7773c976e0300058a74a823bd73a4

Analysis

max time kernel
150s
max time network
151s
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, 03:52

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General

Target
abd6772c202d80440564042d40dce76899d7773c976e0300058a74a823bd73a4.exe
Size 2.4MB
Sample240606-effrgaha45
SHA256 abd6772c202d80440564042d40dce76899d7773c976e0300058a74a823bd73a4
MD5 98a512a749540e2ee06ed9f01ef17336
SHA1 f8e8d7df0ac14fa2c98126085ef068e8b208b0f8
SHA512 b9fe355b1442bd311ef67472e8b5ef077b0ca4a60ff3dcec1cd98501ad13fc7e3934430260616afc92f581c67a3a91406c847f466a1bb86e498735f334cfeeff
SSDEEP 49152:G09XJt4HIN2H2tFvduySVvVzMZc5xqfuZFxpoB2CgpZtG1CfLo:3ZJt4HINy2LkdquxpoB2CgTmAo
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/4004-7-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4004-10-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3224-15-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3224-17-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4936-39-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4936-40-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3224-26-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3224-16-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4936-32-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 10 IoCs

resource	yara_rule
behavioral2/memory/4004-7-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4004-10-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3224-15-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3224-17-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4936-23-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4936-39-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4936-40-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3224-26-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3224-16-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4936-32-0x0000000010000000-0x00000000101B6000-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 4 IoCs

pid	Process
4004	RVN.exe
3224	TXPlatforn.exe
4936	TXPlatforn.exe
2444	HD_abd6772c202d80440564042d40dce76899d7773c976e0300058a74a823bd73a4.exe

UPX packed file 16 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4004-4-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4004-7-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4004-10-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3224-15-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3224-17-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4936-23-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2444-30-0x0000000010000000-0x0000000010018000-memory.dmp	upx
behavioral2/memory/4936-39-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4936-40-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2444-33-0x0000000010000000-0x0000000010018000-memory.dmp	upx
behavioral2/memory/3224-26-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3224-16-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3224-13-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4936-32-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/2444-84-0x0000000002600000-0x000000000264C000-memory.dmp	upx
behavioral2/memory/2444-91-0x0000000010000000-0x0000000010018000-memory.dmp	upx

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\TXPlatforn.exe	RVN.exe
File created	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)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	abd6772c202d80440564042d40dce76899d7773c976e0300058a74a823bd73a4.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	abd6772c202d80440564042d40dce76899d7773c976e0300058a74a823bd73a4.exe
File created	C:\Program Files (x86)\Google\Chrome\Application\chrome.exe	abd6772c202d80440564042d40dce76899d7773c976e0300058a74a823bd73a4.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	abd6772c202d80440564042d40dce76899d7773c976e0300058a74a823bd73a4.exe
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe	abd6772c202d80440564042d40dce76899d7773c976e0300058a74a823bd73a4.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
5060	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4464	abd6772c202d80440564042d40dce76899d7773c976e0300058a74a823bd73a4.exe
4464	abd6772c202d80440564042d40dce76899d7773c976e0300058a74a823bd73a4.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
4936	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4004	RVN.exe
Token: SeLoadDriverPrivilege	4936	TXPlatforn.exe
Token: 33	4936	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	4936	TXPlatforn.exe
Token: 33	4936	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	4936	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4464	abd6772c202d80440564042d40dce76899d7773c976e0300058a74a823bd73a4.exe
4464	abd6772c202d80440564042d40dce76899d7773c976e0300058a74a823bd73a4.exe
2444	HD_abd6772c202d80440564042d40dce76899d7773c976e0300058a74a823bd73a4.exe
2444	HD_abd6772c202d80440564042d40dce76899d7773c976e0300058a74a823bd73a4.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4464 wrote to memory of 4004	4464	abd6772c202d80440564042d40dce76899d7773c976e0300058a74a823bd73a4.exe	82
PID 4464 wrote to memory of 4004	4464	abd6772c202d80440564042d40dce76899d7773c976e0300058a74a823bd73a4.exe	82
PID 4464 wrote to memory of 4004	4464	abd6772c202d80440564042d40dce76899d7773c976e0300058a74a823bd73a4.exe	82
PID 4004 wrote to memory of 1992	4004	RVN.exe	84
PID 4004 wrote to memory of 1992	4004	RVN.exe	84
PID 4004 wrote to memory of 1992	4004	RVN.exe	84
PID 3224 wrote to memory of 4936	3224	TXPlatforn.exe	85
PID 3224 wrote to memory of 4936	3224	TXPlatforn.exe	85
PID 3224 wrote to memory of 4936	3224	TXPlatforn.exe	85
PID 4464 wrote to memory of 2444	4464	abd6772c202d80440564042d40dce76899d7773c976e0300058a74a823bd73a4.exe	86
PID 4464 wrote to memory of 2444	4464	abd6772c202d80440564042d40dce76899d7773c976e0300058a74a823bd73a4.exe	86
PID 4464 wrote to memory of 2444	4464	abd6772c202d80440564042d40dce76899d7773c976e0300058a74a823bd73a4.exe	86
PID 1992 wrote to memory of 5060	1992	cmd.exe	88
PID 1992 wrote to memory of 5060	1992	cmd.exe	88
PID 1992 wrote to memory of 5060	1992	cmd.exe	88

C:\Users\Admin\AppData\Local\Temp\abd6772c202d80440564042d40dce76899d7773c976e0300058a74a823bd73a4.exe
"C:\Users\Admin\AppData\Local\Temp\abd6772c202d80440564042d40dce76899d7773c976e0300058a74a823bd73a4.exe"
1⤵
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4464
- 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:4004
- - 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:1992
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:5060
- C:\Users\Admin\AppData\Local\Temp\HD_abd6772c202d80440564042d40dce76899d7773c976e0300058a74a823bd73a4.exe
  C:\Users\Admin\AppData\Local\Temp\HD_abd6772c202d80440564042d40dce76899d7773c976e0300058a74a823bd73a4.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:2444

C:\Windows\SysWOW64\TXPlatforn.exe
C:\Windows\SysWOW64\TXPlatforn.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3224
- 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:4936

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

Replay Monitor

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Downloads

HD_X.dat

Path C:\Users\Admin\AppData\Local\Temp\HD_X.dat
Size 1.1MB
SHA256 d83577ccf3b852458d28212d6b7fb98bb3211d4a904e544c940b409c324cb0ea
MD5 c78bc11e4835e8ffa705b65a1c6529b9
SHA1 ba21a529ea0dcc0326d4dcf12a0b00d60e36e442
SHA512 6658ef035d8b6ac690c7d456542fd657bd2cdaa566b6d7a47db52c28c25931184b9e8a664c3f0057e9e36a25145bf8c7f8dd549ee58d26936e5b42c234e7c75b
SSDEEP 24576:G09tv9/7JtDElDEExIko2H2HESq2eWJ6MQjySjy+j:G09XJt4HIN2H2tFvduySB
MD5 SHA1 SHA512 SSDEEP

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HD_abd6772c202d80440564042d40dce76899d7773c976e0300058a74a823bd73a4.exe

Path C:\Users\Admin\AppData\Local\Temp\HD_abd6772c202d80440564042d40dce76899d7773c976e0300058a74a823bd73a4.exe
Size 1.2MB
SHA256 fc9e333b6efb75c97183f39a31bacc6e918c3d0fba547dd8eedecbb3c244e33a
MD5 362658c9fbe0fffca9e2dc74a48a15f3
SHA1 d51ebe9d7fd985060cdf2d423f9590491cc944fc
SHA512 d688ee33405179ce48768801b871f07f5f5fb94096672ee7c8c19c204fded59bd53edb61ef524b9126dc181db1cbff418396e4be0a2acfb32d9c4c583b4872a9
SSDEEP 24576:6vVnzMZc54VMNcGKDf+ebozNFxpxU9hL2qFgpZtGFrC0OguRy59:6vVzMZc5xqfuZFxpoB2CgpZtG1CfLo
MD5 SHA1 SHA512 SSDEEP

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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

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memory/2444-35-0x0000000075D80000-0x0000000075E70000-memory.dmp

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memory/2444-91-0x0000000010000000-0x0000000010018000-memory.dmp

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memory/2444-92-0x0000000075D80000-0x0000000075E70000-memory.dmp

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memory/2444-84-0x0000000002600000-0x000000000264C000-memory.dmp

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memory/2444-33-0x0000000010000000-0x0000000010018000-memory.dmp

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memory/2444-34-0x0000000075DA0000-0x0000000075DA1000-memory.dmp

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memory/2444-31-0x0000000035D90000-0x0000000035DA0000-memory.dmp

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memory/2444-30-0x0000000010000000-0x0000000010018000-memory.dmp

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memory/3224-13-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3224-17-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3224-26-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3224-16-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3224-15-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4004-10-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4004-6-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4004-7-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4004-4-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4936-39-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4936-40-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4936-23-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4936-32-0x0000000010000000-0x00000000101B6000-memory.dmp

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