gh0strat | ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf

General

Target

ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exe
Size

3.4MB
MD5

a0b4497318d14e9b7f6da7ed0c08eef8
SHA1

3de2eb02847e2dcdd6d1e108bfa3059795079570
SHA256

ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf
SHA512

922482a2ace700577daf4a02db7ed9981e3db9f87ab3a086a35c03737c15a28c4f643596694d39dcc6ccb3db730c5e7a88d815f7e49e022b35a747a70504a667
SSDEEP

98304:dZJt4HINy2Lk2YYYYYYYYYYYRYYYYYYYYYYL4ldYWYEu:PiINy2Lk/4Q

Score

10^/10

gh0strat purplefox persistence rat rootkit trojan upx

Malware Config

Signatures

Detect PurpleFox Rootkit 9 IoCs

Detect PurpleFox Rootkit.

rootkit

Processes:

resource	yara_rule
behavioral1/memory/2600-8-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2600-9-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2600-7-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2668-18-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2660-25-0x0000000002D40000-0x0000000002F72000-memory.dmp	purplefox_rootkit
behavioral1/memory/2668-38-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2572-51-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2572-58-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit
behavioral1/memory/2572-72-0x0000000010000000-0x00000000101B6000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 9 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2600-8-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2600-9-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2600-7-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2668-18-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2660-25-0x0000000002D40000-0x0000000002F72000-memory.dmp	family_gh0strat
behavioral1/memory/2668-38-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2572-51-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2572-58-0x0000000010000000-0x00000000101B6000-memory.dmp	family_gh0strat
behavioral1/memory/2572-72-0x0000000010000000-0x00000000101B6000-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.exeTXPlatforn.exeHD_ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exeTXPlatforn.exe

pid process

2600 RVN.exe
2668 TXPlatforn.exe
2620 HD_ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exe
2572 TXPlatforn.exe

pid	process
2600	RVN.exe
2668	TXPlatforn.exe
2620	HD_ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exe
2572	TXPlatforn.exe

Loads dropped DLL 3 IoCs

Processes:

ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exeTXPlatforn.exe

pid	process
2660	ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exe
2660	ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exe
2668	TXPlatforn.exe

UPX packed file 10 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2600-5-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2600-8-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2600-9-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2600-7-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2668-18-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2660-25-0x0000000002D40000-0x0000000002F72000-memory.dmp	upx
behavioral1/memory/2668-38-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2572-51-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2572-58-0x0000000010000000-0x00000000101B6000-memory.dmp	upx
behavioral1/memory/2572-72-0x0000000010000000-0x00000000101B6000-memory.dmp	upx

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

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 4 IoCs

Processes:

ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe	ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exe
File created	C:\Program Files (x86)\Google\Chrome\Application\chrome.exe	ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.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

Processes:

PING.EXE

pid process

2584 PING.EXE
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exe

pid process

2660 ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exe
Suspicious behavior: LoadsDriver 1 IoCs

Processes:

TXPlatforn.exe

pid process

2572 TXPlatforn.exe

pid	process
2584	PING.EXE

pid	process
2572	TXPlatforn.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

RVN.exeTXPlatforn.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	2600	RVN.exe
Token: SeLoadDriverPrivilege	2572	TXPlatforn.exe
Token: 33	2572	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2572	TXPlatforn.exe
Token: 33	2572	TXPlatforn.exe
Token: SeIncBasePriorityPrivilege	2572	TXPlatforn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exe

pid	process
2660	ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exe
2660	ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exeRVN.exeTXPlatforn.execmd.exe

description	pid	process	target process
PID 2660 wrote to memory of 2600	2660	ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exe	RVN.exe
PID 2660 wrote to memory of 2600	2660	ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exe	RVN.exe
PID 2660 wrote to memory of 2600	2660	ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exe	RVN.exe
PID 2660 wrote to memory of 2600	2660	ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exe	RVN.exe
PID 2660 wrote to memory of 2600	2660	ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exe	RVN.exe
PID 2660 wrote to memory of 2600	2660	ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exe	RVN.exe
PID 2660 wrote to memory of 2600	2660	ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exe	RVN.exe
PID 2600 wrote to memory of 2552	2600	RVN.exe	cmd.exe
PID 2600 wrote to memory of 2552	2600	RVN.exe	cmd.exe
PID 2600 wrote to memory of 2552	2600	RVN.exe	cmd.exe
PID 2600 wrote to memory of 2552	2600	RVN.exe	cmd.exe
PID 2660 wrote to memory of 2620	2660	ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exe	HD_ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exe
PID 2660 wrote to memory of 2620	2660	ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exe	HD_ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exe
PID 2660 wrote to memory of 2620	2660	ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exe	HD_ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exe
PID 2660 wrote to memory of 2620	2660	ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exe	HD_ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exe
PID 2668 wrote to memory of 2572	2668	TXPlatforn.exe	TXPlatforn.exe
PID 2668 wrote to memory of 2572	2668	TXPlatforn.exe	TXPlatforn.exe
PID 2668 wrote to memory of 2572	2668	TXPlatforn.exe	TXPlatforn.exe
PID 2668 wrote to memory of 2572	2668	TXPlatforn.exe	TXPlatforn.exe
PID 2668 wrote to memory of 2572	2668	TXPlatforn.exe	TXPlatforn.exe
PID 2668 wrote to memory of 2572	2668	TXPlatforn.exe	TXPlatforn.exe
PID 2668 wrote to memory of 2572	2668	TXPlatforn.exe	TXPlatforn.exe
PID 2552 wrote to memory of 2584	2552	cmd.exe	PING.EXE
PID 2552 wrote to memory of 2584	2552	cmd.exe	PING.EXE
PID 2552 wrote to memory of 2584	2552	cmd.exe	PING.EXE
PID 2552 wrote to memory of 2584	2552	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exe
"C:\Users\Admin\AppData\Local\Temp\ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2660

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:2600

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:2552

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_ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exe
C:\Users\Admin\AppData\Local\Temp\HD_ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exe
2⤵
- Executes dropped EXE
PID:2620

C:\Windows\SysWOW64\TXPlatforn.exe
C:\Windows\SysWOW64\TXPlatforn.exe -auto
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2668

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:2572

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\HD_X.dat
Filesize
1.3MB

MD5
148828bfc88c9ca5159d76f7dd9f37a5

SHA1
04a0443d11598c04bd32bc3a80f489fa7dc9221c

SHA256
2bd575b79d2fb5b3928d6a1162124d35e73020349cfb3dbfa6a02c275e5776da

SHA512
7d1fde36b7990c43cd27cd20a1a8d0662878c94961d86f0f3124a928097c7d121f718e7c78408f9615a947814dc2c066a9079099ad1c95cef65bda4b64612959

Download Submit
\Users\Admin\AppData\Local\Temp\HD_ef4fc83d87afafb9b89846a5a6d4edf08a626829d87f4523c97f18c3cf5c56bf.exe
Filesize
2.2MB

MD5
cd55a17685b496570a9ba3374730a9c5

SHA1
3127c701297667727854b508a99c71a77fb1f0ea

SHA256
6a11cca02e22b01b077775b9819cb220d3747c0f6d2b0b85b13265d0cd3ab730

SHA512
19cee89ec5256a386c36c6b3b02f91e8acbf19a778427e5ead10614e73d1dc5e9ed64b1b3b5ad5b461828dea77ba69a5d6b6c8a2363b727ad04f0215da55d894

Download Submit
\Users\Admin\AppData\Local\Temp\RVN.exe
Filesize
377KB

MD5
80ade1893dec9cab7f2e63538a464fcc

SHA1
c06614da33a65eddb506db00a124a3fc3f5be02e

SHA256
57a920389c044e3f5cf93dabff67070b4511e79779b6f874e08f92d8b0d7afbd

SHA512
fffd4f3fccb5301b3c7a5b3bd92747f31549fbd9d0803fe5d502d1bb0ef979140988718c2ee1406ed3e755790d275185e120a56cbcb5ed2eadf62b5cdbfc4cc4

Download Submit
memory/2572-72-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2572-58-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2572-51-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2600-9-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2600-7-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2600-8-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2600-5-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2620-27-0x0000000000400000-0x0000000000632000-memory.dmp

Filesize
2.2MB

Download
memory/2660-25-0x0000000002D40000-0x0000000002F72000-memory.dmp

Filesize
2.2MB

Download
memory/2660-74-0x0000000002D40000-0x0000000002F72000-memory.dmp

Filesize
2.2MB

Download
memory/2668-38-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download
memory/2668-18-0x0000000010000000-0x00000000101B6000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads