plugx | 3a6f18436a355dccb1b0baa715824e201bfbe0307683e7f726b33bee4fd2c2b8

Analysis

max time kernel
168s
max time network
183s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
25-06-2022 03:52

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General

Target

3a6f18436a355dccb1b0baa715824e201bfbe0307683e7f726b33bee4fd2c2b8.exe
Size

364KB
MD5

3bdcd75949bc028311649557395aad17
SHA1

7c1c010814a2308891a54a095fa2b57a178b9bc6
SHA256

3a6f18436a355dccb1b0baa715824e201bfbe0307683e7f726b33bee4fd2c2b8
SHA512

2edaf28d957a23bf3cef4df128fef096bc71a07adcc45028d05740392328619c37ac008b3e3303457d3598c9fd3638ee980511010311a903d96dfa85eb34d9ab

Score

10^/10

plugx trojan

Malware Config

Signatures

Detects PlugX Payload 6 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4112-137-0x00000000021F0000-0x0000000002221000-memory.dmp	family_plugx
behavioral2/memory/1956-144-0x0000000000D90000-0x0000000000DC1000-memory.dmp	family_plugx
behavioral2/memory/2556-147-0x0000000001300000-0x0000000001331000-memory.dmp	family_plugx
behavioral2/memory/1928-149-0x0000000000C70000-0x0000000000CA1000-memory.dmp	family_plugx
behavioral2/memory/2556-150-0x0000000001300000-0x0000000001331000-memory.dmp	family_plugx
behavioral2/memory/1928-151-0x0000000000C70000-0x0000000000CA1000-memory.dmp	family_plugx

PlugX
PlugX is a RAT (Remote Access Trojan) that has been around since 2008.
trojan plugx
Executes dropped EXE 2 IoCs

Processes:

mcvsmap.exemcvsmap.exe

pid process

4112 mcvsmap.exe
1956 mcvsmap.exe

pid	process
4112	mcvsmap.exe
1956	mcvsmap.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

3a6f18436a355dccb1b0baa715824e201bfbe0307683e7f726b33bee4fd2c2b8.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	3a6f18436a355dccb1b0baa715824e201bfbe0307683e7f726b33bee4fd2c2b8.exe

Loads dropped DLL 2 IoCs

Processes:

mcvsmap.exemcvsmap.exe

pid process

4112 mcvsmap.exe
1956 mcvsmap.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

pid	process
4112	mcvsmap.exe
1956	mcvsmap.exe

Modifies registry class 2 IoCs

Processes:

svchost.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\CLASSES\FAST	svchost.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\FAST\CLSID = 44003500370037003600320036004100380031004400390039003700410031000000	svchost.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

svchost.exemsiexec.exe

pid	process
2556	svchost.exe
2556	svchost.exe
2556	svchost.exe
2556	svchost.exe
2556	svchost.exe
2556	svchost.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
2556	svchost.exe
2556	svchost.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
2556	svchost.exe
2556	svchost.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
2556	svchost.exe
2556	svchost.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
2556	svchost.exe
2556	svchost.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe
1928	msiexec.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

Processes:

svchost.exemsiexec.exe

pid process

2556 svchost.exe
1928 msiexec.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

mcvsmap.exemcvsmap.exesvchost.exemsiexec.exe

description	pid	process
Token: SeDebugPrivilege	4112	mcvsmap.exe
Token: SeTcbPrivilege	4112	mcvsmap.exe
Token: SeDebugPrivilege	1956	mcvsmap.exe
Token: SeTcbPrivilege	1956	mcvsmap.exe
Token: SeDebugPrivilege	2556	svchost.exe
Token: SeTcbPrivilege	2556	svchost.exe
Token: SeDebugPrivilege	1928	msiexec.exe
Token: SeTcbPrivilege	1928	msiexec.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

3a6f18436a355dccb1b0baa715824e201bfbe0307683e7f726b33bee4fd2c2b8.exemcvsmap.exesvchost.exe

description	pid	process	target process
PID 1596 wrote to memory of 4112	1596	3a6f18436a355dccb1b0baa715824e201bfbe0307683e7f726b33bee4fd2c2b8.exe	mcvsmap.exe
PID 1596 wrote to memory of 4112	1596	3a6f18436a355dccb1b0baa715824e201bfbe0307683e7f726b33bee4fd2c2b8.exe	mcvsmap.exe
PID 1596 wrote to memory of 4112	1596	3a6f18436a355dccb1b0baa715824e201bfbe0307683e7f726b33bee4fd2c2b8.exe	mcvsmap.exe
PID 1956 wrote to memory of 2556	1956	mcvsmap.exe	svchost.exe
PID 1956 wrote to memory of 2556	1956	mcvsmap.exe	svchost.exe
PID 1956 wrote to memory of 2556	1956	mcvsmap.exe	svchost.exe
PID 1956 wrote to memory of 2556	1956	mcvsmap.exe	svchost.exe
PID 1956 wrote to memory of 2556	1956	mcvsmap.exe	svchost.exe
PID 1956 wrote to memory of 2556	1956	mcvsmap.exe	svchost.exe
PID 1956 wrote to memory of 2556	1956	mcvsmap.exe	svchost.exe
PID 1956 wrote to memory of 2556	1956	mcvsmap.exe	svchost.exe
PID 2556 wrote to memory of 1928	2556	svchost.exe	msiexec.exe
PID 2556 wrote to memory of 1928	2556	svchost.exe	msiexec.exe
PID 2556 wrote to memory of 1928	2556	svchost.exe	msiexec.exe
PID 2556 wrote to memory of 1928	2556	svchost.exe	msiexec.exe
PID 2556 wrote to memory of 1928	2556	svchost.exe	msiexec.exe
PID 2556 wrote to memory of 1928	2556	svchost.exe	msiexec.exe
PID 2556 wrote to memory of 1928	2556	svchost.exe	msiexec.exe
PID 2556 wrote to memory of 1928	2556	svchost.exe	msiexec.exe

C:\Users\Admin\AppData\Local\Temp\3a6f18436a355dccb1b0baa715824e201bfbe0307683e7f726b33bee4fd2c2b8.exe
"C:\Users\Admin\AppData\Local\Temp\3a6f18436a355dccb1b0baa715824e201bfbe0307683e7f726b33bee4fd2c2b8.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1596

C:\Users\Admin\AppData\Local\Temp\RarSFX0\mcvsmap.exe
"C:\Users\Admin\AppData\Local\Temp\RarSFX0\mcvsmap.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
PID:4112

C:\ProgramData\VirusMap\mcvsmap.exe
C:\ProgramData\VirusMap\mcvsmap.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1956

C:\Windows\SysWOW64\svchost.exe
C:\Windows\system32\svchost.exe 201 0
2⤵
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2556

C:\Windows\SysWOW64\msiexec.exe
C:\Windows\system32\msiexec.exe 209 2556
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:1928

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\ProgramData\SxS\bug.log
Filesize
456B

MD5
9994b95fef9bc53b16fa886f27588144

SHA1
647e1b342cb7b1727c8ab2de5c635470d0836c02

SHA256
f43dbe1253a06d676b74d837f9ece25ce01cd0686f63c7034e74fd5ece5b7c75

SHA512
775c22269f2b9b39322a007e4cd4310d7748d325d015c4a4a887983211c266477c3b682201aac1538b02923adfd6711dd1a6cc254251b26a008daa19b34421d6

Download Submit
C:\ProgramData\SxS\bug.log
Filesize
618B

MD5
f912739373ada6b8861481e18dcbd342

SHA1
715e5a2034437947a2b211e4295cbe2024c0e927

SHA256
0affc64775bd2f7c2bbbbf1a8041e2791d78af369a4c14dfa224904fd33107d9

SHA512
f962360a0c86cd8f2416ac22a689d4e1b1a131bb75aba6af5801d6174b531979b18f47cf9e86a1efaaeb1709993a14182de57c5013a72c29396d395622c38f3b

Download Submit
C:\ProgramData\VirusMap\McUtil.DLL
Filesize
48KB

MD5
ad4a646b38a482cc07d5b09b4fffd3b3

SHA1
ae0f9bf2740d00c5d485827eb32aca33feaa3a90

SHA256
0a99238e1ebebc47d7a89b2ccddfae537479f7f77322b5d4941315d3f7e5ca48

SHA512
0a09420c939f71c26fabdc5a036e8e98413e6dbb70552a6b0a277abcf0cd1dcc8f2950631909bdddad97049d80312a4eeada6a1952dd51ebc9d5b38eb50866a1

Download Submit
C:\ProgramData\VirusMap\McUtil.dll
Filesize
48KB

MD5
ad4a646b38a482cc07d5b09b4fffd3b3

SHA1
ae0f9bf2740d00c5d485827eb32aca33feaa3a90

SHA256
0a99238e1ebebc47d7a89b2ccddfae537479f7f77322b5d4941315d3f7e5ca48

SHA512
0a09420c939f71c26fabdc5a036e8e98413e6dbb70552a6b0a277abcf0cd1dcc8f2950631909bdddad97049d80312a4eeada6a1952dd51ebc9d5b38eb50866a1

Download Submit
C:\ProgramData\VirusMap\McUtil.dll.PPT
Filesize
121KB

MD5
6bbba1416a6f16da14bf93e15c417282

SHA1
8688eb1bed03797ff0b14376867712de27d85078

SHA256
5341ec0c5356057d480550068cd4ef0d49ccb5e113b39f044a934f6ce98be627

SHA512
3700940923a9cc584d07406b9b33dedc09ef0f4a33663d97dc3ca441bab43b0407228d135e729b9ce9493b66c66e4c69c54dbf0cfae99cf08848f1f1433eb27d

Download Submit
C:\ProgramData\VirusMap\mcvsmap.exe
Filesize
256KB

MD5
4e1e0b8b0673937415599bf2f24c44ad

SHA1
9224de3af2a246011c6294f64f27206d165317ba

SHA256
ae16e10e621d6610a3f7f2c7122f9d1263700ba02d1b90e42798decb2fe84096

SHA512
87f4407045f2213ecc76fb73e6b717ffc503e0c042be118965a139e7178fdcc2ff02fe0904cde3102679c4a74d09224e24f64dbd9faa609e06a6ce2fcda0ab5d

Download Submit
C:\ProgramData\VirusMap\mcvsmap.exe
Filesize
256KB

MD5
4e1e0b8b0673937415599bf2f24c44ad

SHA1
9224de3af2a246011c6294f64f27206d165317ba

SHA256
ae16e10e621d6610a3f7f2c7122f9d1263700ba02d1b90e42798decb2fe84096

SHA512
87f4407045f2213ecc76fb73e6b717ffc503e0c042be118965a139e7178fdcc2ff02fe0904cde3102679c4a74d09224e24f64dbd9faa609e06a6ce2fcda0ab5d

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\McUtil.DLL
Filesize
48KB

MD5
ad4a646b38a482cc07d5b09b4fffd3b3

SHA1
ae0f9bf2740d00c5d485827eb32aca33feaa3a90

SHA256
0a99238e1ebebc47d7a89b2ccddfae537479f7f77322b5d4941315d3f7e5ca48

SHA512
0a09420c939f71c26fabdc5a036e8e98413e6dbb70552a6b0a277abcf0cd1dcc8f2950631909bdddad97049d80312a4eeada6a1952dd51ebc9d5b38eb50866a1

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\McUtil.dll
Filesize
48KB

MD5
ad4a646b38a482cc07d5b09b4fffd3b3

SHA1
ae0f9bf2740d00c5d485827eb32aca33feaa3a90

SHA256
0a99238e1ebebc47d7a89b2ccddfae537479f7f77322b5d4941315d3f7e5ca48

SHA512
0a09420c939f71c26fabdc5a036e8e98413e6dbb70552a6b0a277abcf0cd1dcc8f2950631909bdddad97049d80312a4eeada6a1952dd51ebc9d5b38eb50866a1

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\McUtil.dll.PPT
Filesize
121KB

MD5
6bbba1416a6f16da14bf93e15c417282

SHA1
8688eb1bed03797ff0b14376867712de27d85078

SHA256
5341ec0c5356057d480550068cd4ef0d49ccb5e113b39f044a934f6ce98be627

SHA512
3700940923a9cc584d07406b9b33dedc09ef0f4a33663d97dc3ca441bab43b0407228d135e729b9ce9493b66c66e4c69c54dbf0cfae99cf08848f1f1433eb27d

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\mcvsmap.exe
Filesize
256KB

MD5
4e1e0b8b0673937415599bf2f24c44ad

SHA1
9224de3af2a246011c6294f64f27206d165317ba

SHA256
ae16e10e621d6610a3f7f2c7122f9d1263700ba02d1b90e42798decb2fe84096

SHA512
87f4407045f2213ecc76fb73e6b717ffc503e0c042be118965a139e7178fdcc2ff02fe0904cde3102679c4a74d09224e24f64dbd9faa609e06a6ce2fcda0ab5d

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\mcvsmap.exe
Filesize
256KB

MD5
4e1e0b8b0673937415599bf2f24c44ad

SHA1
9224de3af2a246011c6294f64f27206d165317ba

SHA256
ae16e10e621d6610a3f7f2c7122f9d1263700ba02d1b90e42798decb2fe84096

SHA512
87f4407045f2213ecc76fb73e6b717ffc503e0c042be118965a139e7178fdcc2ff02fe0904cde3102679c4a74d09224e24f64dbd9faa609e06a6ce2fcda0ab5d

Download Submit
memory/1928-148-0x0000000000000000-mapping.dmp

Download
memory/1928-149-0x0000000000C70000-0x0000000000CA1000-memory.dmp

Filesize
196KB

Download
memory/1928-151-0x0000000000C70000-0x0000000000CA1000-memory.dmp

Filesize
196KB

Download
memory/1956-144-0x0000000000D90000-0x0000000000DC1000-memory.dmp

Filesize
196KB

Download
memory/2556-143-0x0000000000000000-mapping.dmp

Download
memory/2556-147-0x0000000001300000-0x0000000001331000-memory.dmp

Filesize
196KB

Download
memory/2556-150-0x0000000001300000-0x0000000001331000-memory.dmp

Filesize
196KB

Download
memory/4112-130-0x0000000000000000-mapping.dmp

Download
memory/4112-136-0x00000000020B0000-0x00000000021B0000-memory.dmp

Filesize
1024KB

Download
memory/4112-137-0x00000000021F0000-0x0000000002221000-memory.dmp

Filesize
196KB

Download