plugx | 0187a11496437b76b2401bc6136432547b6bcdaca30f2b7d16e4d39f47d5c3ee

General

Target

PS/RsTray.exe
Size

174KB
MD5

d65adc7ad95e88fab486707b8c228f17
SHA1

dfa0589b58a469e34695a22313d184e5352a3282
SHA256

a3674fef407c354e911a8a6c7d4b991802c47cf6409d6dc32dc84be6312159e2
SHA512

3c9114610dfc107adec6a6220356607c737499866eba965985bb1f6b9aedbfae529a5432abb8307ce0653580fab9c2580c66d96ef4cdb4319a0fde5ad3c3ac01
SSDEEP

3072:wq1/mmpPCL8OZwevvCRmvUGmeU1hbFZJslQLRzMaZ:wUmqCL8Oj3XZm5jNLRzVZ

Score

10^/10

plugx trojan

Malware Config

Signatures

Detects PlugX payload 19 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1860-0-0x0000000001BD0000-0x0000000001C01000-memory.dmp	family_plugx
behavioral1/memory/1860-2-0x0000000001BD0000-0x0000000001C01000-memory.dmp	family_plugx
behavioral1/memory/2596-19-0x00000000002D0000-0x0000000000301000-memory.dmp	family_plugx
behavioral1/memory/2668-53-0x0000000000170000-0x00000000001A1000-memory.dmp	family_plugx
behavioral1/memory/2668-49-0x0000000000170000-0x00000000001A1000-memory.dmp	family_plugx
behavioral1/memory/2668-47-0x0000000000170000-0x00000000001A1000-memory.dmp	family_plugx
behavioral1/memory/2668-48-0x0000000000170000-0x00000000001A1000-memory.dmp	family_plugx
behavioral1/memory/2668-36-0x0000000000170000-0x00000000001A1000-memory.dmp	family_plugx
behavioral1/memory/2668-28-0x0000000000170000-0x00000000001A1000-memory.dmp	family_plugx
behavioral1/memory/2668-25-0x0000000000170000-0x00000000001A1000-memory.dmp	family_plugx
behavioral1/memory/2596-20-0x00000000002D0000-0x0000000000301000-memory.dmp	family_plugx
behavioral1/memory/2968-65-0x0000000000280000-0x00000000002B1000-memory.dmp	family_plugx
behavioral1/memory/2968-70-0x0000000000280000-0x00000000002B1000-memory.dmp	family_plugx
behavioral1/memory/2968-72-0x0000000000280000-0x00000000002B1000-memory.dmp	family_plugx
behavioral1/memory/2968-71-0x0000000000280000-0x00000000002B1000-memory.dmp	family_plugx
behavioral1/memory/2668-73-0x0000000000170000-0x00000000001A1000-memory.dmp	family_plugx
behavioral1/memory/2968-74-0x0000000000280000-0x00000000002B1000-memory.dmp	family_plugx
behavioral1/memory/2668-77-0x0000000000170000-0x00000000001A1000-memory.dmp	family_plugx
behavioral1/memory/2668-78-0x0000000000170000-0x00000000001A1000-memory.dmp	family_plugx

PlugX
PlugX is a RAT (Remote Access Trojan) that has been around since 2008.
trojan plugx
Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2668 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

RsTray.exe

pid process

2596 RsTray.exe
Loads dropped DLL 1 IoCs

Processes:

RsTray.exe

pid process

2596 RsTray.exe

pid	process
2596	RsTray.exe

pid	process
2596	RsTray.exe

Modifies data under HKEY_USERS 12 IoCs

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{10A52142-7252-451C-97D7-325E0A5C3C76}\WpadDecisionReason = "1"	svchost.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{10A52142-7252-451C-97D7-325E0A5C3C76}\WpadDecisionTime = 00c846f8b3b8da01	svchost.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{10A52142-7252-451C-97D7-325E0A5C3C76}\WpadDecision = "0"	svchost.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{10A52142-7252-451C-97D7-325E0A5C3C76}\WpadNetworkName = "Network 3"	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-8f-56-e4-0d-35	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{10A52142-7252-451C-97D7-325E0A5C3C76}\86-8f-56-e4-0d-35	svchost.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-8f-56-e4-0d-35\WpadDecisionTime = 00c846f8b3b8da01	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	svchost.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-8f-56-e4-0d-35\WpadDetectedUrl	svchost.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-8f-56-e4-0d-35\WpadDecisionReason = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\86-8f-56-e4-0d-35\WpadDecision = "0"	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{10A52142-7252-451C-97D7-325E0A5C3C76}	svchost.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 = 34003800360043003800370044004200370043003300390037004400370030000000	svchost.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

svchost.exemsiexec.exe

pid	process
2668	svchost.exe
2668	svchost.exe
2668	svchost.exe
2668	svchost.exe
2668	svchost.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2668	svchost.exe
2668	svchost.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2668	svchost.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2668	svchost.exe
2668	svchost.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2668	svchost.exe
2668	svchost.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2668	svchost.exe
2668	svchost.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe
2968	msiexec.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

Processes:

svchost.exemsiexec.exe

pid process

2668 svchost.exe
2968 msiexec.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

RsTray.exeRsTray.exesvchost.exemsiexec.exe

description	pid	process
Token: SeDebugPrivilege	1860	RsTray.exe
Token: SeTcbPrivilege	1860	RsTray.exe
Token: SeDebugPrivilege	2596	RsTray.exe
Token: SeTcbPrivilege	2596	RsTray.exe
Token: SeDebugPrivilege	2668	svchost.exe
Token: SeTcbPrivilege	2668	svchost.exe
Token: SeDebugPrivilege	2968	msiexec.exe
Token: SeTcbPrivilege	2968	msiexec.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

RsTray.exesvchost.exe

description	pid	process	target process
PID 2596 wrote to memory of 2668	2596	RsTray.exe	svchost.exe
PID 2596 wrote to memory of 2668	2596	RsTray.exe	svchost.exe
PID 2596 wrote to memory of 2668	2596	RsTray.exe	svchost.exe
PID 2596 wrote to memory of 2668	2596	RsTray.exe	svchost.exe
PID 2596 wrote to memory of 2668	2596	RsTray.exe	svchost.exe
PID 2596 wrote to memory of 2668	2596	RsTray.exe	svchost.exe
PID 2596 wrote to memory of 2668	2596	RsTray.exe	svchost.exe
PID 2596 wrote to memory of 2668	2596	RsTray.exe	svchost.exe
PID 2596 wrote to memory of 2668	2596	RsTray.exe	svchost.exe
PID 2668 wrote to memory of 2968	2668	svchost.exe	msiexec.exe
PID 2668 wrote to memory of 2968	2668	svchost.exe	msiexec.exe
PID 2668 wrote to memory of 2968	2668	svchost.exe	msiexec.exe
PID 2668 wrote to memory of 2968	2668	svchost.exe	msiexec.exe
PID 2668 wrote to memory of 2968	2668	svchost.exe	msiexec.exe
PID 2668 wrote to memory of 2968	2668	svchost.exe	msiexec.exe
PID 2668 wrote to memory of 2968	2668	svchost.exe	msiexec.exe
PID 2668 wrote to memory of 2968	2668	svchost.exe	msiexec.exe
PID 2668 wrote to memory of 2968	2668	svchost.exe	msiexec.exe
PID 2668 wrote to memory of 2968	2668	svchost.exe	msiexec.exe
PID 2668 wrote to memory of 2968	2668	svchost.exe	msiexec.exe
PID 2668 wrote to memory of 2968	2668	svchost.exe	msiexec.exe

C:\Users\Admin\AppData\Local\Temp\PS\RsTray.exe
"C:\Users\Admin\AppData\Local\Temp\PS\RsTray.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1860

C:\ProgramData\PS\RsTray.exe
C:\ProgramData\PS\RsTray.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2596
- C:\Windows\SysWOW64\svchost.exe
  C:\Windows\system32\svchost.exe 201 0
  2⤵
  - Deletes itself
  - Modifies data under HKEY_USERS
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2668
- - C:\Windows\SysWOW64\msiexec.exe
    C:\Windows\system32\msiexec.exe 209 2668
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:2968

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\ProgramData\PS\RsTray.exe

Filesize
174KB

MD5
d65adc7ad95e88fab486707b8c228f17

SHA1
dfa0589b58a469e34695a22313d184e5352a3282

SHA256
a3674fef407c354e911a8a6c7d4b991802c47cf6409d6dc32dc84be6312159e2

SHA512
3c9114610dfc107adec6a6220356607c737499866eba965985bb1f6b9aedbfae529a5432abb8307ce0653580fab9c2580c66d96ef4cdb4319a0fde5ad3c3ac01

Download Submit
C:\ProgramData\PS\comserv.dll.url

Filesize
122KB

MD5
fe14ef97d52c1c4f4764c36b76f18340

SHA1
60a931c6607ffe7dabdce33151f7d217b7581175

SHA256
d8c68c81908ca0b31a773cf78bc59b9d886ba72177b2b4f5a1d9ea46b95ce05e

SHA512
390366a82817d8e841084744cd879bd7be6ce1dff85e26e9fe4739b709c17718c4e836f2f543c1d84f47096230e2d9dbc6dab6c597acc8ae802c43b1d4ae7f0d

Download Submit
C:\ProgramData\SxS\bug.log

Filesize
782B

MD5
48e717b992505b897b10a6493d488a67

SHA1
dbaa8b7d7f1b86f207d00c094da1d106bc5749b4

SHA256
4313500e273b5af1e38019be9a4b695e82b16a4379306d941031d16ade7da78b

SHA512
272517067aa83cc3707a9652b4608b44c33f6a7ec1d0fc79b57ecdf1ff241e99d83cb8282234798040f8c10889bbb4a7578a43bef94d1a4a560334b23d7a0b1b

Download Submit
C:\ProgramData\SxS\bug.log

Filesize
1KB

MD5
99ed45c2dedcc034e8093db5f4562987

SHA1
42c4d48f9121137f65dec2619ac989e9c422c8d7

SHA256
b20534160b5ac3d35f869db10b353cc080d72f62f9ab16ae9c2872a508c45990

SHA512
06f80cf625f0c7abf06ef6f2ad1d57208a02b228ea5d40afdecd462ae994c7bf3d2f8bb580a7364307e5cec841984b4efc69474db29297e9b50a2c9a0866174d

Download Submit
C:\ProgramData\SxS\bug.log

Filesize
1KB

MD5
0fd31cef7732e6d7c37a01967b763664

SHA1
f521103585ad1e0ed32e7c6fb4366dd26eb14db3

SHA256
3b5b603f3d4ce5b588599063dc259b2d3e35fb6dd08593a77d8787f0d61a9c99

SHA512
34dab61adcfbcdfe87ae924e260327e369bbaea5def715e69f722b8351816eaa82f100d945a0b2faba24ee0b23abf372dec8f42764a47ae127c4e5709f4917d9

Download Submit
\ProgramData\PS\comserv.dll

Filesize
2KB

MD5
6d54b4f07a1b92bd6fafe7160b2c887c

SHA1
6bf4a36e729a2c4156b1280db97252ba8ea7d9b4

SHA256
653fe0ab7b634e50ba09f962c6357bcf76ce633768aa41dd01d1a93ef83a0a54

SHA512
32c57ca7ce437fc7712948a6f30733112830ff570d89ca903e5a5bdec43277a19a453df8c027e0835ad1dff2f7927cf973e33efa1847ed608cb6eb534d8163a3

Download Submit
memory/1860-1-0x0000000001DA0000-0x0000000001EA0000-memory.dmp

Filesize
1024KB

Download
memory/1860-2-0x0000000001BD0000-0x0000000001C01000-memory.dmp

Filesize
196KB

Download
memory/1860-0-0x0000000001BD0000-0x0000000001C01000-memory.dmp

Filesize
196KB

Download
memory/2596-20-0x00000000002D0000-0x0000000000301000-memory.dmp

Filesize
196KB

Download
memory/2596-19-0x00000000002D0000-0x0000000000301000-memory.dmp

Filesize
196KB

Download
memory/2668-47-0x0000000000170000-0x00000000001A1000-memory.dmp

Filesize
196KB

Download
memory/2668-73-0x0000000000170000-0x00000000001A1000-memory.dmp

Filesize
196KB

Download
memory/2668-27-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2668-25-0x0000000000170000-0x00000000001A1000-memory.dmp

Filesize
196KB

Download
memory/2668-24-0x00000000000C0000-0x00000000000C2000-memory.dmp

Filesize
8KB

Download
memory/2668-23-0x00000000000A0000-0x00000000000BD000-memory.dmp

Filesize
116KB

Download
memory/2668-21-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2668-36-0x0000000000170000-0x00000000001A1000-memory.dmp

Filesize
196KB

Download
memory/2668-46-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/2668-48-0x0000000000170000-0x00000000001A1000-memory.dmp

Filesize
196KB

Download
memory/2668-78-0x0000000000170000-0x00000000001A1000-memory.dmp

Filesize
196KB

Download
memory/2668-77-0x0000000000170000-0x00000000001A1000-memory.dmp

Filesize
196KB

Download
memory/2668-53-0x0000000000170000-0x00000000001A1000-memory.dmp

Filesize
196KB

Download
memory/2668-49-0x0000000000170000-0x00000000001A1000-memory.dmp

Filesize
196KB

Download
memory/2668-28-0x0000000000170000-0x00000000001A1000-memory.dmp

Filesize
196KB

Download
memory/2968-71-0x0000000000280000-0x00000000002B1000-memory.dmp

Filesize
196KB

Download
memory/2968-72-0x0000000000280000-0x00000000002B1000-memory.dmp

Filesize
196KB

Download
memory/2968-74-0x0000000000280000-0x00000000002B1000-memory.dmp

Filesize
196KB

Download
memory/2968-70-0x0000000000280000-0x00000000002B1000-memory.dmp

Filesize
196KB

Download
memory/2968-69-0x0000000000090000-0x0000000000091000-memory.dmp

Filesize
4KB

Download
memory/2968-65-0x0000000000280000-0x00000000002B1000-memory.dmp

Filesize
196KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads