gh0strat | bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23

General

Target

bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe
Size

5.4MB
MD5

9675bfbd17ccb44aacd0b42deac9b944
SHA1

958e719a750fd71a0ff7f87e46a5b8f744c2f443
SHA256

bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23
SHA512

14e8d4d17ca167e78487066283a9518082fcb84f675d40e2c4403e4074b9d48f30ac3cc71a84bb978c246645f58f30f6681efbee4a79ef224022d862704f03d5
SSDEEP

98304:ocy2Lk/nlEKfVkkbThYZeQzufTfHnI4p0ZnDqdE8UvsydI3iLcelaFAP52vKqnaU:Jy2Lk/nlEQV1vhYQQzmTHnITZn2UvsSK

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan upx vmprotect

Malware Config

Signatures

Detect PurpleFox Rootkit 8 IoCs

Detect PurpleFox Rootkit.

rootkit

Processes:

resource	yara_rule
behavioral1/memory/3036-15-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/3036-16-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/3036-14-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2592-27-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2592-33-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2860-36-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2860-39-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2860-41-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 8 IoCs

Processes:

resource	yara_rule
behavioral1/memory/3036-15-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/3036-16-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/3036-14-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2592-27-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2592-33-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2860-36-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2860-39-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2860-41-0x0000000010000000-0x00000000101B6000-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

Processes:

TXPlatforn.exe

description ioc process

File created C:\Windows\system32\drivers\QAssist.sys TXPlatforn.exe

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

Processes:

TXPlatforn.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\QAssist\ImagePath = "system32\\DRIVERS\\QAssist.sys"	TXPlatforn.exe

Executes dropped EXE 4 IoCs

Processes:

RVN.exeHD_bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exeTXPlatforn.exeTXPlatforn.exe

pid process

3036 RVN.exe
2172 HD_bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe
2592 TXPlatforn.exe
2860 TXPlatforn.exe

pid	process
3036	RVN.exe
2172	HD_bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe
2592	TXPlatforn.exe
2860	TXPlatforn.exe

Loads dropped DLL 3 IoCs

Processes:

bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exeTXPlatforn.exe

pid	process
2368	bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe
2368	bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe
2592	TXPlatforn.exe

UPX packed file 9 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/3036-15-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/3036-16-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/3036-12-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/3036-14-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2592-27-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2592-33-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2860-36-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2860-39-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2860-41-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

VMProtect packed file 2 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\HD_bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe	vmprotect
behavioral1/memory/2172-21-0x0000000000280000-0x0000000000A2C000-memory.dmp	vmprotect

Drops file in System32 directory 2 IoCs

Processes:

RVN.exe

description ioc process

File created C:\Windows\SysWOW64\TXPlatforn.exe RVN.exe
File opened for modification C:\Windows\SysWOW64\TXPlatforn.exe RVN.exe
Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

2584 PING.EXE
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe

pid process

2368 bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe
Suspicious behavior: LoadsDriver 1 IoCs

Processes:

TXPlatforn.exe

pid process

2860 TXPlatforn.exe

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

pid	process
2584	PING.EXE

pid	process
2860	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

RVN.exeTXPlatforn.exeHD_bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	3036	RVN.exe
Token: SeLoadDriverPrivilege	2860	TXPlatforn.exe
Token: SeDebugPrivilege	2172	HD_bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe
Token: 33	2860	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2860	TXPlatforn.exe
Token: 33	2860	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2860	TXPlatforn.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

HD_bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe

pid process

2172 HD_bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe

pid process

2368 bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe

pid	process
2172	HD_bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exeTXPlatforn.exeRVN.execmd.exe

description	pid	process	target process
PID 2368 wrote to memory of 3036	2368	bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe	RVN.exe
PID 2368 wrote to memory of 3036	2368	bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe	RVN.exe
PID 2368 wrote to memory of 3036	2368	bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe	RVN.exe
PID 2368 wrote to memory of 3036	2368	bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe	RVN.exe
PID 2368 wrote to memory of 3036	2368	bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe	RVN.exe
PID 2368 wrote to memory of 3036	2368	bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe	RVN.exe
PID 2368 wrote to memory of 3036	2368	bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe	RVN.exe
PID 2368 wrote to memory of 2172	2368	bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe	HD_bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe
PID 2368 wrote to memory of 2172	2368	bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe	HD_bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe
PID 2368 wrote to memory of 2172	2368	bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe	HD_bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe
PID 2368 wrote to memory of 2172	2368	bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe	HD_bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe
PID 2592 wrote to memory of 2860	2592	TXPlatforn.exe	TXPlatforn.exe
PID 2592 wrote to memory of 2860	2592	TXPlatforn.exe	TXPlatforn.exe
PID 2592 wrote to memory of 2860	2592	TXPlatforn.exe	TXPlatforn.exe
PID 2592 wrote to memory of 2860	2592	TXPlatforn.exe	TXPlatforn.exe
PID 2592 wrote to memory of 2860	2592	TXPlatforn.exe	TXPlatforn.exe
PID 2592 wrote to memory of 2860	2592	TXPlatforn.exe	TXPlatforn.exe
PID 2592 wrote to memory of 2860	2592	TXPlatforn.exe	TXPlatforn.exe
PID 3036 wrote to memory of 2864	3036	RVN.exe	cmd.exe
PID 3036 wrote to memory of 2864	3036	RVN.exe	cmd.exe
PID 3036 wrote to memory of 2864	3036	RVN.exe	cmd.exe
PID 3036 wrote to memory of 2864	3036	RVN.exe	cmd.exe
PID 2864 wrote to memory of 2584	2864	cmd.exe	PING.EXE
PID 2864 wrote to memory of 2584	2864	cmd.exe	PING.EXE
PID 2864 wrote to memory of 2584	2864	cmd.exe	PING.EXE
PID 2864 wrote to memory of 2584	2864	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe
"C:\Users\Admin\AppData\Local\Temp\bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2368

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:3036

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:2864

C:\Windows\SysWOW64\PING.EXE
ping -n 2 127.0.0.1
4⤵
- Runs ping.exe
PID:2584

C:\Users\Admin\AppData\Local\Temp\HD_bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe
C:\Users\Admin\AppData\Local\Temp\HD_bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:2172

C:\Windows\SysWOW64\TXPlatforn.exe
C:\Windows\SysWOW64\TXPlatforn.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2592

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:2860

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Remote System Discovery

1

T1018

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
732KB

MD5
1cd9d884da7e2e2c78bd9db07dd521b2

SHA1
f8880d3e5f1d70a02503ee3b55e9469b90b12115

SHA256
f206d37e249162a5cbb1b71671efec459d20c9f7ed5728ef3aaa9171aa92f081

SHA512
a7361de195cedf12793f61c9aa2e79d55e31e7359f1e537fee0ee502efe8536abbf7f7db5ea5621d6700f968e04c535ce7986634d7fe6744990bbe8527225a73

Download Submit
\Users\Admin\AppData\Local\Temp\HD_bf77a4207ce01394db927bd6c6292a314a5e6d7ad419663d8b2beb544cdcdf23.exe

Filesize
4.7MB

MD5
e66e59b4ef35fea998d638eed90c8eda

SHA1
1e32838cb1965b95b4daa60934624aa8416644af

SHA256
dd5ca63e9eb818bf02f3223b1f230dde55b9a011c9bb52ee6e29e1bed36f5fce

SHA512
90cfd657b94f2f43cd6828f7104026ac2c5f00292053008804e6587cb4ca88533acc0eba15b6e6a57bcdb0019a54096b0f6478eff3b53a55ad3c866836e611a0

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

Filesize
377KB

MD5
80ade1893dec9cab7f2e63538a464fcc

SHA1
c06614da33a65eddb506db00a124a3fc3f5be02e

SHA256
57a920389c044e3f5cf93dabff67070b4511e79779b6f874e08f92d8b0d7afbd

SHA512
fffd4f3fccb5301b3c7a5b3bd92747f31549fbd9d0803fe5d502d1bb0ef979140988718c2ee1406ed3e755790d275185e120a56cbcb5ed2eadf62b5cdbfc4cc4

Download Submit
memory/2172-47-0x000000001BBB0000-0x000000001BC58000-memory.dmp

Filesize
672KB

Download
memory/2172-56-0x0000000000C90000-0x0000000000C9A000-memory.dmp

Filesize
40KB

Download
memory/2172-55-0x000007FEF5BD3000-0x000007FEF5BD4000-memory.dmp

Filesize
4KB

Download
memory/2172-42-0x000000001C2E0000-0x000000001C59E000-memory.dmp

Filesize
2.7MB

Download
memory/2172-21-0x0000000000280000-0x0000000000A2C000-memory.dmp

Filesize
7.7MB

Download
memory/2172-17-0x000007FEF5BD3000-0x000007FEF5BD4000-memory.dmp

Filesize
4KB

Download
memory/2172-43-0x0000000000C90000-0x0000000000C9A000-memory.dmp

Filesize
40KB

Download
memory/2172-44-0x0000000000C90000-0x0000000000C9A000-memory.dmp

Filesize
40KB

Download
memory/2592-27-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2592-33-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2860-36-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2860-41-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2860-39-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3036-14-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3036-12-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3036-16-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/3036-15-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads