gh0strat | 51be8949452cbaac4621bdc08d6028b5f54dcd15cd0fff4e50f33467d397dec4

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
28/05/2024, 23:37

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General

Target
51be8949452cbaac4621bdc08d6028b5f54dcd15cd0fff4e50f33467d397dec4.exe
Size 5.0MB
Sample240528-3mk7jaac42
SHA256 51be8949452cbaac4621bdc08d6028b5f54dcd15cd0fff4e50f33467d397dec4
MD5 4d1d28196a2bc08725622b14f071ceaa
SHA1 2303a091a5bd9268088000ca75f548c61025a835
SHA512 1f8e53ea9a6f33d8ba75961cf7ec2511f2ad4d58a1ed7d3ed670d221bda00f79d24a28f38d27a94ef7f05e0480e1b6d70b515b7779b2468940641267fd90acad
SSDEEP 98304:Qws2ANnKXOaeOgmhniik/4NSB3z2yeJVA:GKXbeO7kAS9ReJVA
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 8 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/4508-20-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4508-19-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/4508-23-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3920-29-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/3920-28-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1112-37-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1112-43-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral2/memory/1112-45-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 9 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023437-5.dat	family_gh0strat
behavioral2/memory/4508-20-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4508-19-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/4508-23-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3920-29-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/3920-28-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1112-37-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1112-43-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral2/memory/1112-45-0x0000000010000000-0x00000000101B6000-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	TXPlatfor.exe

Sets DLL path for service in the 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\Remote Data\Parameters\ServiceDll = "C:\\Windows\\system32\\240603906.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
4408	R.exe
4508	N.exe
3920	TXPlatfor.exe
1112	TXPlatfor.exe
4336	HD_51be8949452cbaac4621bdc08d6028b5f54dcd15cd0fff4e50f33467d397dec4.exe
448	Remote Data.exe

Loads dropped DLL 3 IoCs

pid	Process
4408	R.exe
4436	svchost.exe
448	Remote Data.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4508-20-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4508-19-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4508-17-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/4508-23-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3920-26-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3920-29-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/3920-28-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1112-37-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1112-43-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral2/memory/1112-45-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

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\240603906.txt	R.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	R.exe
File created	C:\Windows\SysWOW64\Remote Data.exe	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3952	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
884	51be8949452cbaac4621bdc08d6028b5f54dcd15cd0fff4e50f33467d397dec4.exe
884	51be8949452cbaac4621bdc08d6028b5f54dcd15cd0fff4e50f33467d397dec4.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
1112	TXPlatfor.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4508	N.exe
Token: SeLoadDriverPrivilege	1112	TXPlatfor.exe
Token: 33	1112	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	1112	TXPlatfor.exe
Token: 33	1112	TXPlatfor.exe
Token: SeIncBasePriorityPrivilege	1112	TXPlatfor.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
884	51be8949452cbaac4621bdc08d6028b5f54dcd15cd0fff4e50f33467d397dec4.exe
884	51be8949452cbaac4621bdc08d6028b5f54dcd15cd0fff4e50f33467d397dec4.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 884 wrote to memory of 4408	884	51be8949452cbaac4621bdc08d6028b5f54dcd15cd0fff4e50f33467d397dec4.exe	82
PID 884 wrote to memory of 4408	884	51be8949452cbaac4621bdc08d6028b5f54dcd15cd0fff4e50f33467d397dec4.exe	82
PID 884 wrote to memory of 4408	884	51be8949452cbaac4621bdc08d6028b5f54dcd15cd0fff4e50f33467d397dec4.exe	82
PID 884 wrote to memory of 4508	884	51be8949452cbaac4621bdc08d6028b5f54dcd15cd0fff4e50f33467d397dec4.exe	85
PID 884 wrote to memory of 4508	884	51be8949452cbaac4621bdc08d6028b5f54dcd15cd0fff4e50f33467d397dec4.exe	85
PID 884 wrote to memory of 4508	884	51be8949452cbaac4621bdc08d6028b5f54dcd15cd0fff4e50f33467d397dec4.exe	85
PID 4508 wrote to memory of 4008	4508	N.exe	88
PID 4508 wrote to memory of 4008	4508	N.exe	88
PID 4508 wrote to memory of 4008	4508	N.exe	88
PID 3920 wrote to memory of 1112	3920	TXPlatfor.exe	89
PID 3920 wrote to memory of 1112	3920	TXPlatfor.exe	89
PID 3920 wrote to memory of 1112	3920	TXPlatfor.exe	89
PID 4008 wrote to memory of 3952	4008	cmd.exe	93
PID 4008 wrote to memory of 3952	4008	cmd.exe	93
PID 4008 wrote to memory of 3952	4008	cmd.exe	93
PID 4436 wrote to memory of 448	4436	svchost.exe	99
PID 4436 wrote to memory of 448	4436	svchost.exe	99
PID 4436 wrote to memory of 448	4436	svchost.exe	99

C:\Users\Admin\AppData\Local\Temp\51be8949452cbaac4621bdc08d6028b5f54dcd15cd0fff4e50f33467d397dec4.exe
"C:\Users\Admin\AppData\Local\Temp\51be8949452cbaac4621bdc08d6028b5f54dcd15cd0fff4e50f33467d397dec4.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:884
- C:\Users\Admin\AppData\Local\Temp\R.exe
  C:\Users\Admin\AppData\Local\Temp\\R.exe
  2⤵
  - Sets DLL path for service in the registry
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  PID:4408
- 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
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4508
- - 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⤵
    - Suspicious use of WriteProcessMemory
    PID:4008
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 2 127.0.0.1
      4⤵
      Runs ping.exe
      PID:3952
- C:\Users\Admin\AppData\Local\Temp\HD_51be8949452cbaac4621bdc08d6028b5f54dcd15cd0fff4e50f33467d397dec4.exe
  C:\Users\Admin\AppData\Local\Temp\HD_51be8949452cbaac4621bdc08d6028b5f54dcd15cd0fff4e50f33467d397dec4.exe
  2⤵
  - Executes dropped EXE
  PID:4336

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
PID:2452

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:4436
- C:\Windows\SysWOW64\Remote Data.exe
  "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\240603906.txt",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:448

C:\Windows\SysWOW64\TXPlatfor.exe
C:\Windows\SysWOW64\TXPlatfor.exe -auto
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3920
- 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:1112

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

HD_51be8949452cbaac4621bdc08d6028b5f54dcd15cd0fff4e50f33467d397dec4.exe

Path C:\Users\Admin\AppData\Local\Temp\HD_51be8949452cbaac4621bdc08d6028b5f54dcd15cd0fff4e50f33467d397dec4.exe
Size 2.6MB
SHA256 e01893424c358f1c9d4c0f92d0ec3021d87260b8171203e8112ad5308f8aa87c
MD5 0d4a5e84cc3f1c921acac798bf8c979d
SHA1 7f6f1cbaa4be1767acc1ce21ca917c7b72ac7a8c
SHA512 0c8a705175f8670ed80671990c084a1a546ada4ea40e4b093d2a9f47586ff59385ab15fe60a4b9eb88046a1fd435c39b7fda14eb5c524bbb923d48f27b21551a
SSDEEP 49152:F/kNFi/h9NgTDc4qSrA7jaT3wrEpv4tye85ORNRVZ/RQEqCcP:hk/4NSB3z2yeJVA
MD5 SHA1 SHA512 SSDEEP

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HD_X.dat

Path C:\Users\Admin\AppData\Local\Temp\HD_X.dat
Size 2.4MB
SHA256 4359b8efe3687547c994d3f80e9dede2e6c0c90530e7b284b4d114c2e26f8879
MD5 25db9aa76e713ce53675a0beb2ce5eb7
SHA1 1749070439c96ba0db9740b0ea294abc87ba469d
SHA512 a1eb5878fcb6ecb61afc42f3d3fabd811b2f3a158a6f617e30d30c00e1d5856ebbe38293b8d0abafde32a4802ec79829f10e4ad06cd7d71908c2931945a775a4
SSDEEP 24576:tCwsbKgbQ5NANIvGTYwMHXA+wT1kfTw4SIuvB74fgt7ibhRM5QhKehFdMtRj7nHR:tCwsbCANnKXferL7Vwe/Gg0P+WhAd6it
MD5 SHA1 SHA512 SSDEEP

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N.exe

Path C:\Users\Admin\AppData\Local\Temp\N.exe
Size 377KB
SHA256 3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8
MD5 4a36a48e58829c22381572b2040b6fe0
SHA1 f09d30e44ff7e3f20a5de307720f3ad148c6143b
SHA512 5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0
SSDEEP 6144:5UGp2l6zRmeVLNHfkQ2TAygOcqAJwQZgb4YtjH6/MuQafORzEOmFfMzi71o+YHL7:HclcceBKlKwAg0Mja/UafOVwbha
MD5 SHA1 SHA512 SSDEEP

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R.exe

Path C:\Users\Admin\AppData\Local\Temp\R.exe
Size 941KB
SHA256 bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c
MD5 8dc3adf1c490211971c1e2325f1424d2
SHA1 4eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5
SHA512 ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d
SSDEEP 24576:N+wT1kfTw4SIuvB74fgt7ibhRM5QhKehFdMtRj7nH1PXw:cerL7Vw
MD5 SHA1 SHA512 SSDEEP

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240603906.txt

Path C:\Windows\SysWOW64\240603906.txt
Size 899KB
SHA256 7dc5fcc2ae9ad3ee5bfc98beacd4b520591c0cadf7f2e451a3ca3c1713864072
MD5 f9aeb3c4f56965e4344e846524e60593
SHA1 8899c1cfdf6b649fb5c1524ac5d91d7054de06e7
SHA512 ffc1a204a552073ecffa44e668c2169e04b724121ee9f618eeb9dfb8ec3887315eddbf447c8000f2b1ea712e3c0119b9a1da7241789bd0ef44026a8cb289e281
SSDEEP 24576:7V2bG+2gMir4fgt7ibhRM5QhKehFdMtRj7nH1PX/:7wqd87V/
MD5 SHA1 SHA512 SSDEEP

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Remote Data.exe

Path C:\Windows\SysWOW64\Remote Data.exe
Size 60KB
SHA256 6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910
MD5 889b99c52a60dd49227c5e485a016679
SHA1 8fa889e456aa646a4d0a4349977430ce5fa5e2d7
SHA512 08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641
SSDEEP 1536:H9ykYCTdiHQKrFXmw2RQln5IUmDjoX6+:HlMHprF2nRQln5I
MD5 SHA1 SHA512 SSDEEP

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memory/1112-37-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/1112-45-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/1112-43-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3920-29-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3920-28-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/3920-26-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4508-23-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4508-17-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4508-19-0x0000000010000000-0x00000000101B6000-memory.dmp

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memory/4508-20-0x0000000010000000-0x00000000101B6000-memory.dmp

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