gh0strat | ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f

Analysis

max time kernel
154s
max time network
160s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
21/06/2024, 02:57

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General

Target
ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f.exe
Size 2.5MB
Sample240621-dflgaa1amq
SHA256 ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f
MD5 3030278fede9a055d39ddf84387f1529
SHA1 c2053a7cac4ba3a876fc1e39e6c5359903d263a6
SHA512 f8fb88125e8100f9d441007e0c892b311afe4f5201e5b6ca5f24549a1ecfb76e8e09b8c7a72e05a4d986e57e8c87ffbea931703713d53e592dba32ed7075b0ad
SSDEEP 49152:R09XJt4HIN2H2tFvduySiKPDeli41J9LmlaUzpb7:yZJt4HINy2LkrPDel/F+
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 12 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/4896-6-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4896-7-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4896-8-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3300-16-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3300-15-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3300-17-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4896-21-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3300-27-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4612-31-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4612-30-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4612-33-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4612-37-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 12 IoCs

resource	yara_rule
behavioral2/memory/4896-6-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4896-7-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4896-8-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3300-16-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3300-15-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3300-17-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4896-21-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3300-27-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4612-31-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4612-30-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4612-33-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4612-37-0x0000000010000000-0x00000000101B6000-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
4896	RVN.exe
3300	TXPlatforn.exe
4612	TXPlatforn.exe
3304	HD_ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f.exe

UPX packed file 14 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4896-4-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4896-6-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4896-7-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4896-8-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3300-13-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3300-16-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3300-15-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3300-17-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4896-21-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3300-27-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4612-31-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4612-30-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4612-33-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4612-37-0x0000000010000000-0x00000000101B6000-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 created	C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe	ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f.exe
File created	C:\Program Files (x86)\Google\Chrome\Application\chrome.exe	ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f.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
4984	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3148	ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f.exe
3148	ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
4612	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4896	RVN.exe
Token: SeLoadDriverPrivilege	4612	TXPlatforn.exe
Token: 33	4612	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	4612	TXPlatforn.exe
Token: 33	4612	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	4612	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3148	ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f.exe
3148	ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3148 wrote to memory of 4896	3148	ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f.exe	91
PID 3148 wrote to memory of 4896	3148	ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f.exe	91
PID 3148 wrote to memory of 4896	3148	ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f.exe	91
PID 4896 wrote to memory of 4928	4896	RVN.exe	93
PID 4896 wrote to memory of 4928	4896	RVN.exe	93
PID 4896 wrote to memory of 4928	4896	RVN.exe	93
PID 3300 wrote to memory of 4612	3300	TXPlatforn.exe	95
PID 3300 wrote to memory of 4612	3300	TXPlatforn.exe	95
PID 3300 wrote to memory of 4612	3300	TXPlatforn.exe	95
PID 3148 wrote to memory of 3304	3148	ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f.exe	96
PID 3148 wrote to memory of 3304	3148	ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f.exe	96
PID 3148 wrote to memory of 3304	3148	ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f.exe	96
PID 4928 wrote to memory of 4984	4928	cmd.exe	97
PID 4928 wrote to memory of 4984	4928	cmd.exe	97
PID 4928 wrote to memory of 4984	4928	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f.exe
"C:\Users\Admin\AppData\Local\Temp\ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f.exe"
1⤵
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3148
- 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:4896
- - 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:4928
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:4984
- C:\Users\Admin\AppData\Local\Temp\HD_ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f.exe
  C:\Users\Admin\AppData\Local\Temp\HD_ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f.exe
  2⤵
  - Executes dropped EXE
  PID:3304

C:\Windows\SysWOW64\TXPlatforn.exe
C:\Windows\SysWOW64\TXPlatforn.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3300
- 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:4612

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4256 --field-trial-handle=2252,i,16022092570067181109,3235558581947505669,262144 --variations-seed-version /prefetch:8
1⤵
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 1.3MB
SHA256 79a81117ea64cccd640612fb650ede1f38f73c9920113dee9aaebcebd798df33
MD5 75319694da7ff6a660e15654e8691478
SHA1 6cdb9f457d03a9e81145694fe7b780182fd4722c
SHA512 0c41a8de79158bf3ad03fb2805c80eca13fa68d60a7976ca931d57602aa98d902f336077fdc41e3c12656b66eeadf1435514ff4e9b315be773183c0a3ea9a639
SSDEEP 24576:R09tv9/7JtDElDEExIko2H2HESq2eWJ6MQjySjy+YO57:R09XJt4HIN2H2tFvduySiK7
MD5 SHA1 SHA512 SSDEEP

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HD_X.dat

Path C:\Users\Admin\AppData\Local\Temp\HD_X.dat
Size 1.3MB
SHA256 8dc6372b9d017250fbd3b4a92c858b1805b7a0e7894f24fa35290230772c002b
MD5 dc42ba3e87180c9dc0f9bd8536522d52
SHA1 a7f14ac9f1d26f160923ea3994a56a3496c82591
SHA512 57fc2e9929ef779ce2ab4b9662a54f62d64829507b3856528652ad095c35eddfb9067cd5ad2c26dcb8cc693c187acc2523290d98cfff81eaf9a0c1a04d7cdb38
SSDEEP 24576:u09tv9/7JtDElDEExIko2H2HESq2eWJ6MQjySjy+2wpeFO5j:u09XJt4HIN2H2tFvduySvpeFKj
MD5 SHA1 SHA512 SSDEEP

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HD_ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f.exe

Path C:\Users\Admin\AppData\Local\Temp\HD_ac4558730e985a2159e4a5ae6beef8f1c6741c166872b460a17411a4512a8c4f.exe
Size 1.2MB
SHA256 f7bd9c1c013e111fe7963b4a9c7af1bce47945706fc2ece1e0b7c3906d8b900a
MD5 d06c3ec17437ae4c3e16ba515bfe10d2
SHA1 3ca62741ef2935e987c81b8a7227b29d7bcd453b
SHA512 8f75c047113ad97f7d3221a9e230b89ebd675c47ae426e717b4e04be9a7fed0074ca296abc4830fdfaa8d35630a4eb68574317f37c451c9153d1cba270e63df2
SSDEEP 24576:UBDeljjXy4szSPO0KTJpdM/miml2Nv7cWOTP2rg8BjISqrbv6H+pojuo:WDeli41J9LmlaUzpb7
MD5 SHA1 SHA512 SSDEEP

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RCXCCA7.tmp

Path C:\Users\Admin\AppData\Local\Temp\RCXCCA7.tmp
Size 1.3MB
SHA256 3814c81c99e4db4a3aaace4b52dbecba712ce9008113c3b2aa0c29e85c63a5ea
MD5 bb7bc19498ea4b6441d42ee88a86362f
SHA1 468de8c668d98af8eef416e678692051204cdae6
SHA512 feb40af8a4da43702acec9ac42445ff45112b5e06135eac766c957ed6673780f954ac30c8b1fb39ea748a545bd86be70a6cd8193693454c045e291ad3fe97d71
SSDEEP 24576:m09tv9/7JtDElDEExIko2H2HESq2eWJ6MQjySjy+zJnO5l:m09XJt4HIN2H2tFvduySnnKl
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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X.ico

Path C:\Users\Admin\AppData\Local\Temp\X.ico
Size 69KB
SHA256 020c8e0963f89f4b14538b7d69e83c6fec44a29bbbd52fbb6deb2be5c697f450
MD5 e33fb6d686b1a8b171349572c5a33f67
SHA1 29f24fe536adf799b69b63c83efadc1bce457a54
SHA512 cf1f1d6a9efe53f84e5b4a8246b87c0b96496716605d1b00352d9aae30e664d3d2cbadebf598b4e690a9feef0b5785887a4e643cc5f68938ca744af1d3539e55
SSDEEP 1536:F4GZjzQwK5WW7VCn6KyoFAmu3wtBUniymVq07sZBSTVkOzAqDg:Te5BV0vUniyL4RE
MD5 SHA1 SHA512 SSDEEP

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memory/3300-27-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3300-15-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3300-17-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3300-13-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3300-16-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4612-33-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4612-30-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4612-31-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4612-37-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4896-21-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4896-8-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4896-7-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4896-6-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4896-4-0x0000000010000000-0x00000000101B6000-memory.dmp

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