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 21 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4544-1-0x0000000002370000-0x00000000023A1000-memory.dmp	family_plugx
behavioral2/memory/4608-20-0x0000000000EC0000-0x0000000000EF1000-memory.dmp	family_plugx
behavioral2/memory/4608-21-0x0000000000EC0000-0x0000000000EF1000-memory.dmp	family_plugx
behavioral2/memory/4544-29-0x0000000002370000-0x00000000023A1000-memory.dmp	family_plugx
behavioral2/memory/1384-25-0x0000000001950000-0x0000000001981000-memory.dmp	family_plugx
behavioral2/memory/1384-23-0x0000000001950000-0x0000000001981000-memory.dmp	family_plugx
behavioral2/memory/1384-32-0x0000000001950000-0x0000000001981000-memory.dmp	family_plugx
behavioral2/memory/1384-45-0x0000000001950000-0x0000000001981000-memory.dmp	family_plugx
behavioral2/memory/1384-44-0x0000000001950000-0x0000000001981000-memory.dmp	family_plugx
behavioral2/memory/1384-43-0x0000000001950000-0x0000000001981000-memory.dmp	family_plugx
behavioral2/memory/1384-48-0x0000000001950000-0x0000000001981000-memory.dmp	family_plugx
behavioral2/memory/1384-49-0x0000000001950000-0x0000000001981000-memory.dmp	family_plugx
behavioral2/memory/1384-50-0x0000000001950000-0x0000000001981000-memory.dmp	family_plugx
behavioral2/memory/3596-54-0x0000000000CF0000-0x0000000000D21000-memory.dmp	family_plugx
behavioral2/memory/3596-60-0x0000000000CF0000-0x0000000000D21000-memory.dmp	family_plugx
behavioral2/memory/3596-59-0x0000000000CF0000-0x0000000000D21000-memory.dmp	family_plugx
behavioral2/memory/3596-61-0x0000000000CF0000-0x0000000000D21000-memory.dmp	family_plugx
behavioral2/memory/1384-62-0x0000000001950000-0x0000000001981000-memory.dmp	family_plugx
behavioral2/memory/3596-63-0x0000000000CF0000-0x0000000000D21000-memory.dmp	family_plugx
behavioral2/memory/1384-66-0x0000000001950000-0x0000000001981000-memory.dmp	family_plugx
behavioral2/memory/1384-67-0x0000000001950000-0x0000000001981000-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

1384 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

RsTray.exe

pid process

4608 RsTray.exe
Loads dropped DLL 1 IoCs

Processes:

RsTray.exe

pid process

4608 RsTray.exe

pid	process
4608	RsTray.exe

pid	process
4608	RsTray.exe

Drops file in System32 directory 4 IoCs

Processes:

svchost.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	svchost.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	svchost.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	svchost.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	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 = 41004200460030004200340031003700390038003000310039004200360044000000	svchost.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

svchost.exemsiexec.exe

pid	process
1384	svchost.exe
1384	svchost.exe
1384	svchost.exe
1384	svchost.exe
1384	svchost.exe
1384	svchost.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
1384	svchost.exe
1384	svchost.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
1384	svchost.exe
1384	svchost.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
1384	svchost.exe
1384	svchost.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
1384	svchost.exe
1384	svchost.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

Processes:

svchost.exemsiexec.exe

pid process

1384 svchost.exe
3596 msiexec.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

RsTray.exeRsTray.exesvchost.exemsiexec.exe

description	pid	process
Token: SeDebugPrivilege	4544	RsTray.exe
Token: SeTcbPrivilege	4544	RsTray.exe
Token: SeDebugPrivilege	4608	RsTray.exe
Token: SeTcbPrivilege	4608	RsTray.exe
Token: SeDebugPrivilege	1384	svchost.exe
Token: SeTcbPrivilege	1384	svchost.exe
Token: SeDebugPrivilege	3596	msiexec.exe
Token: SeTcbPrivilege	3596	msiexec.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

RsTray.exesvchost.exe

description	pid	process	target process
PID 4608 wrote to memory of 1384	4608	RsTray.exe	svchost.exe
PID 4608 wrote to memory of 1384	4608	RsTray.exe	svchost.exe
PID 4608 wrote to memory of 1384	4608	RsTray.exe	svchost.exe
PID 4608 wrote to memory of 1384	4608	RsTray.exe	svchost.exe
PID 4608 wrote to memory of 1384	4608	RsTray.exe	svchost.exe
PID 4608 wrote to memory of 1384	4608	RsTray.exe	svchost.exe
PID 4608 wrote to memory of 1384	4608	RsTray.exe	svchost.exe
PID 4608 wrote to memory of 1384	4608	RsTray.exe	svchost.exe
PID 1384 wrote to memory of 3596	1384	svchost.exe	msiexec.exe
PID 1384 wrote to memory of 3596	1384	svchost.exe	msiexec.exe
PID 1384 wrote to memory of 3596	1384	svchost.exe	msiexec.exe
PID 1384 wrote to memory of 3596	1384	svchost.exe	msiexec.exe
PID 1384 wrote to memory of 3596	1384	svchost.exe	msiexec.exe
PID 1384 wrote to memory of 3596	1384	svchost.exe	msiexec.exe
PID 1384 wrote to memory of 3596	1384	svchost.exe	msiexec.exe
PID 1384 wrote to memory of 3596	1384	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:4544

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:4608
- C:\Windows\SysWOW64\svchost.exe
  C:\Windows\system32\svchost.exe 201 0
  2⤵
  - Deletes itself
  - Drops file in System32 directory
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1384
- - C:\Windows\SysWOW64\msiexec.exe
    C:\Windows\system32\msiexec.exe 209 1384
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:3596

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4444 --field-trial-handle=2248,i,10247514684337323751,15511974759131734137,262144 --variations-seed-version /prefetch:8
1⤵
PID:1392

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

Filesize
2KB

MD5
6d54b4f07a1b92bd6fafe7160b2c887c

SHA1
6bf4a36e729a2c4156b1280db97252ba8ea7d9b4

SHA256
653fe0ab7b634e50ba09f962c6357bcf76ce633768aa41dd01d1a93ef83a0a54

SHA512
32c57ca7ce437fc7712948a6f30733112830ff570d89ca903e5a5bdec43277a19a453df8c027e0835ad1dff2f7927cf973e33efa1847ed608cb6eb534d8163a3

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
456B

MD5
cab1030b85f438b749d33334e1624a03

SHA1
31f1a8876c89a2f48816484d09ba4960bc765e75

SHA256
2d8550569f70e7e0ffdd4ba8812ccd25679c61982ddcc2c2c03bb0bd97f8ac3f

SHA512
91aa0ddf8d5608c3ed053b5be4a6acaa22ea84fbfd0fbd402368c95eef599fda59c76044ddca2109e882ca4cfca95e97921c88aae6502c0fc3bdd5d4e9434cac

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

Filesize
618B

MD5
dfdd5077a93daf1cfd379fda3f3e86ea

SHA1
47c50616142294c15c09af1a0d46c5228efe9b42

SHA256
ef4b98828942947c0ad2fbc3f0805fc617d20323acd8a3f5ec391e4b94e70b0c

SHA512
7b9d7a0073e170bc8a441de14dafa3cc62e5a313752602ce3451e80a0688d415c5cdd08131dbc50870e4a0232edb8ee9e575120048672ac0e98c9d4c70402720

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

Filesize
1KB

MD5
0e6e4d8a8d7ed00222fd3deeab9ae21b

SHA1
ce707d0721d176105ced1b08514bb843e6abefe4

SHA256
bbaf761291721b487931e952be62783ba173ec0e89ccfaa5d843b45a566c326b

SHA512
e3570722da09145c9bc992c93a89014b5fbe5e6508f544fb00f8fc03ed12f22f79b1b14cd03ffdaf6fe54436a4e0f89f32c9867b0706cb1f4269ddc755e5eba3

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

Filesize
1KB

MD5
23b004f3a2c80a0d70e4b5a24e30f11e

SHA1
8711482e55be263c514a87dd3b2032004dc91103

SHA256
d55c46b2ea7a968188e4af3600d51edb4be781d4658383a3aba01e8e2f09353b

SHA512
dea718c9e3cd63552dfba826a3fe614083c51a87006e25ea71ebd61e507e1e1a5321ed7f059669d7a6e277f8dd268477ba632a676cfd4d463610f63b38dd3166

Download Submit
memory/1384-23-0x0000000001950000-0x0000000001981000-memory.dmp

Filesize
196KB

Download
memory/1384-42-0x00000000012B0000-0x00000000012B1000-memory.dmp

Filesize
4KB

Download
memory/1384-25-0x0000000001950000-0x0000000001981000-memory.dmp

Filesize
196KB

Download
memory/1384-22-0x00000000012B0000-0x00000000012B1000-memory.dmp

Filesize
4KB

Download
memory/1384-66-0x0000000001950000-0x0000000001981000-memory.dmp

Filesize
196KB

Download
memory/1384-67-0x0000000001950000-0x0000000001981000-memory.dmp

Filesize
196KB

Download
memory/1384-32-0x0000000001950000-0x0000000001981000-memory.dmp

Filesize
196KB

Download
memory/1384-62-0x0000000001950000-0x0000000001981000-memory.dmp

Filesize
196KB

Download
memory/1384-45-0x0000000001950000-0x0000000001981000-memory.dmp

Filesize
196KB

Download
memory/1384-44-0x0000000001950000-0x0000000001981000-memory.dmp

Filesize
196KB

Download
memory/1384-43-0x0000000001950000-0x0000000001981000-memory.dmp

Filesize
196KB

Download
memory/1384-48-0x0000000001950000-0x0000000001981000-memory.dmp

Filesize
196KB

Download
memory/1384-49-0x0000000001950000-0x0000000001981000-memory.dmp

Filesize
196KB

Download
memory/1384-50-0x0000000001950000-0x0000000001981000-memory.dmp

Filesize
196KB

Download
memory/3596-59-0x0000000000CF0000-0x0000000000D21000-memory.dmp

Filesize
196KB

Download
memory/3596-54-0x0000000000CF0000-0x0000000000D21000-memory.dmp

Filesize
196KB

Download
memory/3596-60-0x0000000000CF0000-0x0000000000D21000-memory.dmp

Filesize
196KB

Download
memory/3596-61-0x0000000000CF0000-0x0000000000D21000-memory.dmp

Filesize
196KB

Download
memory/3596-58-0x0000000000C50000-0x0000000000C51000-memory.dmp

Filesize
4KB

Download
memory/3596-53-0x00000000008D0000-0x00000000008D1000-memory.dmp

Filesize
4KB

Download
memory/3596-63-0x0000000000CF0000-0x0000000000D21000-memory.dmp

Filesize
196KB

Download
memory/4544-0-0x00000000023D0000-0x00000000024D0000-memory.dmp

Filesize
1024KB

Download
memory/4544-29-0x0000000002370000-0x00000000023A1000-memory.dmp

Filesize
196KB

Download
memory/4544-1-0x0000000002370000-0x00000000023A1000-memory.dmp

Filesize
196KB

Download
memory/4608-21-0x0000000000EC0000-0x0000000000EF1000-memory.dmp

Filesize
196KB

Download
memory/4608-20-0x0000000000EC0000-0x0000000000EF1000-memory.dmp

Filesize
196KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads