plugx | 8843f39d991fb9ad4da612e523daa84dcea2a124b82466593aab26e65b8830a4

Analysis

max time kernel
151s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
02/12/2022, 10:58

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General

Target
8843f39d991fb9ad4da612e523daa84dcea2a124b82466593aab26e65b8830a4.exe
Size 342KB
Sample221202-m29knsag63
SHA256 8843f39d991fb9ad4da612e523daa84dcea2a124b82466593aab26e65b8830a4
MD5 7eaecc4084e090a5f2f0325d1a88ee5f
SHA1 963180155ca06a29918013c8783ad349da811e13
SHA512 a7c82c560611ac19e48c9dd10ffbab64b6a5bd49bd2c2ef2b2b73a6e31418f79b5b4ff3e338111fc7e8d7f47a7e670059d1790b49e359e8924504b36c0b992c9
SSDEEP 6144:v4lRkAehaKuqT+FdR4U5LUb8I77edkob1n/2ogNKtP8jv9CG3BeGldF1umkt3IJa:vkWAehJuqT4SPoInix1NgNMsp3BDlD4h
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

plugx trojan

Malware Config

Signatures

Detects PlugX payload 7 IoCs

resource	yara_rule
behavioral2/memory/3532-146-0x0000000000E60000-0x0000000000E98000-memory.dmp	family_plugx
behavioral2/memory/4828-147-0x0000000000B20000-0x0000000000B58000-memory.dmp	family_plugx
behavioral2/memory/4636-149-0x0000000002180000-0x00000000021B8000-memory.dmp	family_plugx
behavioral2/memory/2532-150-0x0000000001170000-0x00000000011A8000-memory.dmp	family_plugx
behavioral2/memory/752-152-0x0000000000A40000-0x0000000000A78000-memory.dmp	family_plugx
behavioral2/memory/2532-153-0x0000000001170000-0x00000000011A8000-memory.dmp	family_plugx
behavioral2/memory/752-154-0x0000000000A40000-0x0000000000A78000-memory.dmp	family_plugx

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

Executes dropped EXE 3 IoCs

pid	Process
4828	setup.exe
4636	NvSmart.exe
3532	NvSmart.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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	8843f39d991fb9ad4da612e523daa84dcea2a124b82466593aab26e65b8830a4.exe

Loads dropped DLL 2 IoCs

pid	Process
4636	NvSmart.exe
3532	NvSmart.exe

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

System Information Discovery
T1082

Modifies data under HKEY_USERS 17 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\User Agent\Post Platform	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\User Agent\Post Platform	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\User Agent\Post Platform	svchost.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	svchost.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\User Agent	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\User Agent\Post Platform	svchost.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows	svchost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\User Agent	svchost.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	svchost.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\CLASSES\FAST	svchost.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\FAST\CLSID = 37003200390041003500300038003500380039003200430034004300320046000000	svchost.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2532	svchost.exe
2532	svchost.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
2532	svchost.exe
2532	svchost.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
2532	svchost.exe
2532	svchost.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
2532	svchost.exe
2532	svchost.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
2532	svchost.exe
2532	svchost.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
752	msiexec.exe
2532	svchost.exe
2532	svchost.exe
752	msiexec.exe
752	msiexec.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2532	svchost.exe
752	msiexec.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeDebugPrivilege	4828	setup.exe
Token: SeTcbPrivilege	4828	setup.exe
Token: SeDebugPrivilege	4636	NvSmart.exe
Token: SeTcbPrivilege	4636	NvSmart.exe
Token: SeDebugPrivilege	3532	NvSmart.exe
Token: SeTcbPrivilege	3532	NvSmart.exe
Token: SeDebugPrivilege	2532	svchost.exe
Token: SeTcbPrivilege	2532	svchost.exe
Token: SeDebugPrivilege	752	msiexec.exe
Token: SeTcbPrivilege	752	msiexec.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4828	setup.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2288 wrote to memory of 4828	2288	8843f39d991fb9ad4da612e523daa84dcea2a124b82466593aab26e65b8830a4.exe	82
PID 2288 wrote to memory of 4828	2288	8843f39d991fb9ad4da612e523daa84dcea2a124b82466593aab26e65b8830a4.exe	82
PID 2288 wrote to memory of 4828	2288	8843f39d991fb9ad4da612e523daa84dcea2a124b82466593aab26e65b8830a4.exe	82
PID 3532 wrote to memory of 2532	3532	NvSmart.exe	85
PID 3532 wrote to memory of 2532	3532	NvSmart.exe	85
PID 3532 wrote to memory of 2532	3532	NvSmart.exe	85
PID 3532 wrote to memory of 2532	3532	NvSmart.exe	85
PID 3532 wrote to memory of 2532	3532	NvSmart.exe	85
PID 3532 wrote to memory of 2532	3532	NvSmart.exe	85
PID 3532 wrote to memory of 2532	3532	NvSmart.exe	85
PID 3532 wrote to memory of 2532	3532	NvSmart.exe	85
PID 2532 wrote to memory of 752	2532	svchost.exe	86
PID 2532 wrote to memory of 752	2532	svchost.exe	86
PID 2532 wrote to memory of 752	2532	svchost.exe	86
PID 2532 wrote to memory of 752	2532	svchost.exe	86
PID 2532 wrote to memory of 752	2532	svchost.exe	86
PID 2532 wrote to memory of 752	2532	svchost.exe	86
PID 2532 wrote to memory of 752	2532	svchost.exe	86
PID 2532 wrote to memory of 752	2532	svchost.exe	86

C:\Users\Admin\AppData\Local\Temp\8843f39d991fb9ad4da612e523daa84dcea2a124b82466593aab26e65b8830a4.exe
"C:\Users\Admin\AppData\Local\Temp\8843f39d991fb9ad4da612e523daa84dcea2a124b82466593aab26e65b8830a4.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2288
- C:\programdata\setup.exe
  "C:\programdata\setup.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4828

C:\ProgramData\Wins\NvSmart.exe
"C:\ProgramData\Wins\NvSmart.exe" 100 4828
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
PID:4636

C:\ProgramData\Wins\NvSmart.exe
"C:\ProgramData\Wins\NvSmart.exe" 200 0
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3532
- C:\Windows\SysWOW64\svchost.exe
  C:\Windows\system32\svchost.exe 201 0
  2⤵
  - Modifies data under HKEY_USERS
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2532
- - C:\Windows\SysWOW64\msiexec.exe
    C:\Windows\system32\msiexec.exe 209 2532
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:752

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

bug.log

Path C:\ProgramData\SxS\bug.log
Size 500B
SHA256 290b9df7712cfc3f7801bcbd1fd3de0edd95966361239491e95851769ea989ac
MD5 dd888538b2bf991876f01db9aa516a9a
SHA1 fe1eea0167db330632fed4b4787db7fbf024fef5
SHA512 42bd46c705b5c4e656dbd3292af671b17b0a2d802f00e5df2f4c0a27c95ef3d636b52fd23408de05764fd60543d60e368c285b7dd2f96a7a5172f672ea7d3041
MD5 SHA1 SHA512

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NvSmart.chm

Path C:\ProgramData\Wins\NvSmart.chm
Size 155KB
SHA256 7ba3e66a633e04feac7167e19621e43b7eb0499f38e818c6dedad21f5f6b39be
MD5 c7814f4a0c42065005e82bda45e4d849
SHA1 735e60ab5b0d52344851510c2b1e5f7136d65301
SHA512 ae327466612592b4439dedfa288a54e46102f46d9afd47ad6f236964c016eefc162beffc56394cfca7db92f043f4ff4d02bbdacf70daae9463ed85ce6207dd77
SSDEEP 3072:pyEqlSTXxTvOtvNbCGGezbcOl4gi939EdO0CYREqRuFFBOzDdnR:pyXS7xTvOtNbCN0bggi9teJkEz
MD5 SHA1 SHA512 SSDEEP

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NvSmart.exe

Path C:\ProgramData\Wins\NvSmart.exe
Size 46KB
SHA256 523d28df917f9d265cd2c0d38df26277bc56a535145100ed82e6f5fdeaae7256
MD5 09b8b54f78a10c435cd319070aa13c28
SHA1 6474d0369f97e72e01e4971128d1062f5c2b3656
SHA512 c1f2f5c4aa5eb55d255e22db032da954a38a0204fb4d9bc76042f140f1b1e171944aa09b0eb11159323a8b9f33974c73fd32a4f76d976aaa8a16cc9c60a34ca7
SSDEEP 768:Ep+QDJgY/OTFStOWjmyPTc+6lye958TZLWMmSbC9X:Epj9IexPANL58TZaDaC9
MD5 SHA1 SHA512 SSDEEP

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NvSmart.exe

Path C:\ProgramData\Wins\NvSmart.exe
Size 46KB
SHA256 523d28df917f9d265cd2c0d38df26277bc56a535145100ed82e6f5fdeaae7256
MD5 09b8b54f78a10c435cd319070aa13c28
SHA1 6474d0369f97e72e01e4971128d1062f5c2b3656
SHA512 c1f2f5c4aa5eb55d255e22db032da954a38a0204fb4d9bc76042f140f1b1e171944aa09b0eb11159323a8b9f33974c73fd32a4f76d976aaa8a16cc9c60a34ca7
SSDEEP 768:Ep+QDJgY/OTFStOWjmyPTc+6lye958TZLWMmSbC9X:Epj9IexPANL58TZaDaC9
MD5 SHA1 SHA512 SSDEEP

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NvSmart.exe

Path C:\ProgramData\Wins\NvSmart.exe
Size 46KB
SHA256 523d28df917f9d265cd2c0d38df26277bc56a535145100ed82e6f5fdeaae7256
MD5 09b8b54f78a10c435cd319070aa13c28
SHA1 6474d0369f97e72e01e4971128d1062f5c2b3656
SHA512 c1f2f5c4aa5eb55d255e22db032da954a38a0204fb4d9bc76042f140f1b1e171944aa09b0eb11159323a8b9f33974c73fd32a4f76d976aaa8a16cc9c60a34ca7
SSDEEP 768:Ep+QDJgY/OTFStOWjmyPTc+6lye958TZLWMmSbC9X:Epj9IexPANL58TZaDaC9
MD5 SHA1 SHA512 SSDEEP

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NvSmartMax.dll

Path C:\ProgramData\Wins\NvSmartMax.dll
Size 4KB
SHA256 fb1c1de76504a35b5c9cf4a60c4a7497064917e0ac96b5389b5ef56c4a02bc17
MD5 0674a0929aec3db11383523b40fa36d1
SHA1 9f50aa213232690e06aa49b7e7b1640127429117
SHA512 ce1a5007499232d6730bf97745bd5e931d6a26d658d3c47a4200a2e225c78e947dbca2487bae77adb65399c2985dce5cbc95f2672ca7e309b3a9f9ba4501d10b
SSDEEP 48:ap2dvbxNvcfDQ9mZpzm+pcG6mfjjCSCe:3hvGQQZE+N6mrjCt
MD5 SHA1 SHA512 SSDEEP

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NvSmartMax.dll

Path C:\ProgramData\Wins\NvSmartMax.dll
Size 4KB
SHA256 fb1c1de76504a35b5c9cf4a60c4a7497064917e0ac96b5389b5ef56c4a02bc17
MD5 0674a0929aec3db11383523b40fa36d1
SHA1 9f50aa213232690e06aa49b7e7b1640127429117
SHA512 ce1a5007499232d6730bf97745bd5e931d6a26d658d3c47a4200a2e225c78e947dbca2487bae77adb65399c2985dce5cbc95f2672ca7e309b3a9f9ba4501d10b
SSDEEP 48:ap2dvbxNvcfDQ9mZpzm+pcG6mfjjCSCe:3hvGQQZE+N6mrjCt
MD5 SHA1 SHA512 SSDEEP

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NvSmartMax.dll

Path C:\ProgramData\Wins\NvSmartMax.dll
Size 4KB
SHA256 fb1c1de76504a35b5c9cf4a60c4a7497064917e0ac96b5389b5ef56c4a02bc17
MD5 0674a0929aec3db11383523b40fa36d1
SHA1 9f50aa213232690e06aa49b7e7b1640127429117
SHA512 ce1a5007499232d6730bf97745bd5e931d6a26d658d3c47a4200a2e225c78e947dbca2487bae77adb65399c2985dce5cbc95f2672ca7e309b3a9f9ba4501d10b
SSDEEP 48:ap2dvbxNvcfDQ9mZpzm+pcG6mfjjCSCe:3hvGQQZE+N6mrjCt
MD5 SHA1 SHA512 SSDEEP

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setup.exe

Path C:\ProgramData\setup.exe
Size 341KB
SHA256 bba7c47c1c2af0a0d54d2c44c3386f54b59874b9c878dfa8fdacf72937770a96
MD5 608abb0c39949775368837a6c068b113
SHA1 24de091315d67bf66d0a089524d5742c79b90400
SHA512 89e843d7f7cb700c35c5bcbcdce6d800e9c6b4ccee3997ec0b38c09b452e3d6edbd638b9e9f520b7fdab4dea7c18a85ad23a94eb257b777e69e504e1dd20cb8f
SSDEEP 6144:VKs+6SrgizF3ndvz9T6LmVgcHBsnsTyXS7xTvOtNbCN0bggi9teJkEzbr:XSXndvz9T6yVgchB7xCeNvtOkEzb
MD5 SHA1 SHA512 SSDEEP

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setup.exe

Path C:\programdata\setup.exe
Size 341KB
SHA256 bba7c47c1c2af0a0d54d2c44c3386f54b59874b9c878dfa8fdacf72937770a96
MD5 608abb0c39949775368837a6c068b113
SHA1 24de091315d67bf66d0a089524d5742c79b90400
SHA512 89e843d7f7cb700c35c5bcbcdce6d800e9c6b4ccee3997ec0b38c09b452e3d6edbd638b9e9f520b7fdab4dea7c18a85ad23a94eb257b777e69e504e1dd20cb8f
SSDEEP 6144:VKs+6SrgizF3ndvz9T6LmVgcHBsnsTyXS7xTvOtNbCN0bggi9teJkEzbr:XSXndvz9T6yVgchB7xCeNvtOkEzb
MD5 SHA1 SHA512 SSDEEP

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memory/752-154-0x0000000000A40000-0x0000000000A78000-memory.dmp

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memory/752-152-0x0000000000A40000-0x0000000000A78000-memory.dmp

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memory/2532-150-0x0000000001170000-0x00000000011A8000-memory.dmp

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memory/2532-153-0x0000000001170000-0x00000000011A8000-memory.dmp

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memory/3532-146-0x0000000000E60000-0x0000000000E98000-memory.dmp

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memory/4636-149-0x0000000002180000-0x00000000021B8000-memory.dmp

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memory/4636-141-0x0000000002080000-0x0000000002180000-memory.dmp

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memory/4828-147-0x0000000000B20000-0x0000000000B58000-memory.dmp

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memory/4828-135-0x0000000000A20000-0x0000000000A47000-memory.dmp

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