plugx | 6e6bfcbc22644d060670718dea2c5a7d860edc55cf8bd6100e277e53a8b0fc92

Resubmissions

24-02-2022 11:15

220224-nck2fschd6 10

22-02-2022 08:29

220222-kdlgtsfgen 10

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-en-20211208
submitted
24-02-2022 11:15

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General

Target

6e6bfcbc22644d060670718dea2c5a7d860edc55cf8bd6100e277e53a8b0fc92.exe
Size

267KB
MD5

b921f1f433015d3780e9c13ab245f2eb
SHA1

cbc30251bb9392dc0c47b2b1084273c0aa58a0dc
SHA256

6e6bfcbc22644d060670718dea2c5a7d860edc55cf8bd6100e277e53a8b0fc92
SHA512

7eef07ca4bf6ba69e56f0dc6420d8af25a50a2aefcfdc72d5718238068076a2794e74282743132537c166ee38864e6bc85fc905e3cf1d98082b94fbb32f8e203

Score

10^/10

plugx trojan

Malware Config

Signatures

PlugX
PlugX is a RAT (Remote Access Trojan) that has been around since 2008.
trojan plugx

PlugX Rat Payload 4 IoCs

resource	yara_rule
behavioral1/memory/828-76-0x0000000000310000-0x0000000000337000-memory.dmp	PlugX
behavioral1/memory/1920-78-0x0000000000270000-0x0000000000297000-memory.dmp	PlugX
behavioral1/memory/1488-80-0x00000000001A0000-0x00000000001C5000-memory.dmp	PlugX
behavioral1/memory/1316-86-0x0000000000240000-0x0000000000265000-memory.dmp	PlugX

Executes dropped EXE 2 IoCs

pid	Process
1920	Mc.exe
828	Mc.exe

Deletes itself 1 IoCs

pid	Process
1488	svchost.exe

Loads dropped DLL 6 IoCs

pid	Process
948	6e6bfcbc22644d060670718dea2c5a7d860edc55cf8bd6100e277e53a8b0fc92.exe
948	6e6bfcbc22644d060670718dea2c5a7d860edc55cf8bd6100e277e53a8b0fc92.exe
948	6e6bfcbc22644d060670718dea2c5a7d860edc55cf8bd6100e277e53a8b0fc92.exe
948	6e6bfcbc22644d060670718dea2c5a7d860edc55cf8bd6100e277e53a8b0fc92.exe
948	6e6bfcbc22644d060670718dea2c5a7d860edc55cf8bd6100e277e53a8b0fc92.exe
1920	Mc.exe

Drops file in Windows directory 6 IoCs

description	ioc	Process
File created	C:\Windows\McUtil.dll.url	Mc.exe
File opened for modification	C:\Windows\Mc.exe	Mc.exe
File created	C:\Windows\Mc.exe	Mc.exe
File opened for modification	C:\Windows\McUtil.dll	Mc.exe
File created	C:\Windows\McUtil.dll	Mc.exe
File opened for modification	C:\Windows\McUtil.dll.url	Mc.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\SYSTEM\CENTRALPROCESSOR\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CENTRALPROCESSOR\0\~MHZ	svchost.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\CLASSES\XXXX	svchost.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\XXXX\CLSID = 30003500320046004300300045004400380041003200390041003600340041000000	svchost.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1488	svchost.exe
1488	svchost.exe
1488	svchost.exe
1488	svchost.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1488	svchost.exe
1488	svchost.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1488	svchost.exe
1488	svchost.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1488	svchost.exe
1488	svchost.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1488	svchost.exe
1488	svchost.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1316	msiexec.exe
1488	svchost.exe
1488	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
1488	svchost.exe
1316	msiexec.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	1920	Mc.exe
Token: SeTcbPrivilege	1920	Mc.exe
Token: SeDebugPrivilege	828	Mc.exe
Token: SeTcbPrivilege	828	Mc.exe
Token: SeDebugPrivilege	1488	svchost.exe
Token: SeTcbPrivilege	1488	svchost.exe
Token: SeDebugPrivilege	1316	msiexec.exe
Token: SeTcbPrivilege	1316	msiexec.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 948 wrote to memory of 1920	948	6e6bfcbc22644d060670718dea2c5a7d860edc55cf8bd6100e277e53a8b0fc92.exe	27
PID 948 wrote to memory of 1920	948	6e6bfcbc22644d060670718dea2c5a7d860edc55cf8bd6100e277e53a8b0fc92.exe	27
PID 948 wrote to memory of 1920	948	6e6bfcbc22644d060670718dea2c5a7d860edc55cf8bd6100e277e53a8b0fc92.exe	27
PID 948 wrote to memory of 1920	948	6e6bfcbc22644d060670718dea2c5a7d860edc55cf8bd6100e277e53a8b0fc92.exe	27
PID 948 wrote to memory of 1920	948	6e6bfcbc22644d060670718dea2c5a7d860edc55cf8bd6100e277e53a8b0fc92.exe	27
PID 948 wrote to memory of 1920	948	6e6bfcbc22644d060670718dea2c5a7d860edc55cf8bd6100e277e53a8b0fc92.exe	27
PID 948 wrote to memory of 1920	948	6e6bfcbc22644d060670718dea2c5a7d860edc55cf8bd6100e277e53a8b0fc92.exe	27
PID 828 wrote to memory of 1488	828	Mc.exe	29
PID 828 wrote to memory of 1488	828	Mc.exe	29
PID 828 wrote to memory of 1488	828	Mc.exe	29
PID 828 wrote to memory of 1488	828	Mc.exe	29
PID 828 wrote to memory of 1488	828	Mc.exe	29
PID 828 wrote to memory of 1488	828	Mc.exe	29
PID 828 wrote to memory of 1488	828	Mc.exe	29
PID 828 wrote to memory of 1488	828	Mc.exe	29
PID 828 wrote to memory of 1488	828	Mc.exe	29
PID 1488 wrote to memory of 1316	1488	svchost.exe	31
PID 1488 wrote to memory of 1316	1488	svchost.exe	31
PID 1488 wrote to memory of 1316	1488	svchost.exe	31
PID 1488 wrote to memory of 1316	1488	svchost.exe	31
PID 1488 wrote to memory of 1316	1488	svchost.exe	31
PID 1488 wrote to memory of 1316	1488	svchost.exe	31
PID 1488 wrote to memory of 1316	1488	svchost.exe	31
PID 1488 wrote to memory of 1316	1488	svchost.exe	31
PID 1488 wrote to memory of 1316	1488	svchost.exe	31
PID 1488 wrote to memory of 1316	1488	svchost.exe	31
PID 1488 wrote to memory of 1316	1488	svchost.exe	31
PID 1488 wrote to memory of 1316	1488	svchost.exe	31

C:\Users\Admin\AppData\Local\Temp\6e6bfcbc22644d060670718dea2c5a7d860edc55cf8bd6100e277e53a8b0fc92.exe
"C:\Users\Admin\AppData\Local\Temp\6e6bfcbc22644d060670718dea2c5a7d860edc55cf8bd6100e277e53a8b0fc92.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:948
- C:\Users\Admin\AppData\Local\Temp\RarSFX0\Mc.exe
  "C:\Users\Admin\AppData\Local\Temp\RarSFX0\Mc.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  PID:1920

C:\Windows\Mc.exe
C:\Windows\Mc.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:828
- C:\Windows\SysWOW64\svchost.exe
  C:\Windows\system32\svchost.exe
  2⤵
  - Deletes itself
  - Checks processor information in registry
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1488
- - C:\Windows\SysWOW64\msiexec.exe
    C:\Windows\SysWOW64\msiexec.exe
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:1316

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/828-76-0x0000000000310000-0x0000000000337000-memory.dmp

Filesize
156KB

Download
memory/828-75-0x0000000001CD0000-0x0000000001DD0000-memory.dmp

Filesize
1024KB

Download
memory/948-55-0x0000000075321000-0x0000000075323000-memory.dmp

Filesize
8KB

Download
memory/1316-86-0x0000000000240000-0x0000000000265000-memory.dmp

Filesize
148KB

Download
memory/1488-71-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/1488-73-0x00000000000A0000-0x00000000000B7000-memory.dmp

Filesize
92KB

Download
memory/1488-74-0x00000000000C0000-0x00000000000C2000-memory.dmp

Filesize
8KB

Download
memory/1488-79-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/1488-80-0x00000000001A0000-0x00000000001C5000-memory.dmp

Filesize
148KB

Download
memory/1920-77-0x0000000000402000-0x0000000000403000-memory.dmp

Filesize
4KB

Download
memory/1920-78-0x0000000000270000-0x0000000000297000-memory.dmp

Filesize
156KB

Download