979e6cae1a7cece38a51f18416d469c90b8da28cda1f37305de8730f268a12f8

General

Target

MasterModz27/vietclan1.exe
Size

999KB
MD5

74875414286f38026ba797089abcc4f1
SHA1

77455ecc3f3e1db1249bdc214c254196ecec0120
SHA256

0ff2fecd3d8db67aba33704e7a6cbc92ccf8381ca04616dc6078427428f28d92
SHA512

1b25b62423acbdc9159c4475b9bbd2528d39392dde4473a6cfc9ab59132349499aee07b7abc0cf4d9e6d61f213888799bc034987e66d212b1a5fee43fb765b3b
SSDEEP

24576:1tviYFCFAbEj390uf8oC/mgkrNEaEEmcuRAo80PE:P5IACdf+jaVfJ

Score

7^/10

Malware Config

Signatures

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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	RunDll32.exe

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 24 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\BrowserEmulation\CVListXMLVersionLow = "395196024"	RunDll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Internet Explorer\GPU	RunDll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\Wow64-DeviceId = "140"	RunDll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	RunDll32.exe
Key deleted	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\LowRegistry\DOMStorage	RunDll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Internet Explorer\DomStorageState	RunDll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\BrowserEmulation\IECompatVersionLow = "0"	RunDll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Internet Explorer\Main	RunDll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\BrowserEmulation\CVListXMLVersionHigh = "268435456"	RunDll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\BrowserEmulation\IECompatVersionHigh = "268435456"	RunDll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Cleared = "1"	RunDll32.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Cleared_TIMESTAMP = 8eed776303ccda01	RunDll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	RunDll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\Wow64-VendorId = "4318"	RunDll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\BrowserEmulation\IECompatVersionLow = "395196024"	RunDll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\BrowserEmulation\StaleCompatCache = "1"	RunDll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\Wow64-SoftwareFallback = "0"	RunDll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\Wow64-SubSysId = "0"	RunDll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\Wow64-Revision = "0"	RunDll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\BrowserEmulation\CVListDomainAttributeSet = "0"	RunDll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\DomStorageState\EdpCleanupState = "0"	RunDll32.exe
Key deleted	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\TypedURLs	RunDll32.exe
Key created	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Internet Explorer\BrowserEmulation	RunDll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\BrowserEmulation\IECompatVersionHigh = "0"	RunDll32.exe

Modifies data under HKEY_USERS 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Cryptography\TPM\Telemetry	RunDll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Cryptography\TPM\Telemetry\TraceTimeLast = "133643453880997745"	RunDll32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4388	RunDll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1484	vietclan1.exe
1484	vietclan1.exe
1484	vietclan1.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1484 wrote to memory of 4388	1484	vietclan1.exe	81
PID 1484 wrote to memory of 4388	1484	vietclan1.exe	81
PID 1484 wrote to memory of 4388	1484	vietclan1.exe	81
PID 4388 wrote to memory of 5016	4388	RunDll32.exe	85
PID 4388 wrote to memory of 5016	4388	RunDll32.exe	85
PID 4388 wrote to memory of 5016	4388	RunDll32.exe	85

C:\Users\Admin\AppData\Local\Temp\MasterModz27\vietclan1.exe
"C:\Users\Admin\AppData\Local\Temp\MasterModz27\vietclan1.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1484
- C:\Windows\SysWOW64\RunDll32.exe
  RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 4351
  2⤵
  - Checks computer location settings
  - Modifies Internet Explorer settings
  - Modifies data under HKEY_USERS
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:4388
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe" -ResetDestinationList
    3⤵
    PID:5016
- - C:\Windows\SysWOW64\rundll32.exe
    C:\Windows\system32\rundll32.exe C:\Windows\system32\inetcpl.cpl,ClearMyTracksByProcess Flags:4351 WinX:0 WinY:0 IEFrame:00000000
    3⤵
    PID:4820

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\2IX84YPE\NewErrorPageTemplate[1]

Filesize
1KB

MD5
dfeabde84792228093a5a270352395b6

SHA1
e41258c9576721025926326f76063c2305586f76

SHA256
77b138ab5d0a90ff04648c26addd5e414cc178165e3b54a4cb3739da0f58e075

SHA512
e256f603e67335151bb709294749794e2e3085f4063c623461a0b3decbcca8e620807b707ec9bcbe36dcd7d639c55753da0495be85b4ae5fb6bfc52ab4b284fd

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\2IX84YPE\httpErrorPagesScripts[1]

Filesize
11KB

MD5
9234071287e637f85d721463c488704c

SHA1
cca09b1e0fba38ba29d3972ed8dcecefdef8c152

SHA256
65cc039890c7ceb927ce40f6f199d74e49b8058c3f8a6e22e8f916ad90ea8649

SHA512
87d691987e7a2f69ad8605f35f94241ab7e68ad4f55ad384f1f0d40dc59ffd1432c758123661ee39443d624c881b01dcd228a67afb8700fe5e66fc794a6c0384

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\D5DFSS0T\errorPageStrings[1]

Filesize
4KB

MD5
d65ec06f21c379c87040b83cc1abac6b

SHA1
208d0a0bb775661758394be7e4afb18357e46c8b

SHA256
a1270e90cea31b46432ec44731bf4400d22b38eb2855326bf934fe8f1b169a4f

SHA512
8a166d26b49a5d95aea49bc649e5ea58786a2191f4d2adac6f5fbb7523940ce4482d6a2502aa870a931224f215cb2010a8c9b99a2c1820150e4d365cab28299e

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\VLW1SL5J\dnserrordiagoff[1]

Filesize
1KB

MD5
7e81a79f38695e467a49ee41dd24146d

SHA1
035e110c36bf3072525b05394f73d1ba54d0d316

SHA256
a705d1e0916a79b0d6e60c41a9ce301ed95b3fc00e927f940ab27061c208a536

SHA512
53c5f2f2b9ad8b555f9ae6644941cf2016108e803ea6ab2c7418e31e66874dea5a2bc04be0fa9766e7206617879520e730e9e3e0de136bae886c2e786082d622

Download Submit
C:\Users\Admin\AppData\Local\Packages\windows_ie_ac_001\AC\INetHistory\desktop.ini

Filesize
130B

MD5
941682911c20b2dabecb20476f91c98a

SHA1
0b0becf019cb15e75cdfa23bf0d4cb976f109baa

SHA256
3fef99e07b0455f88a5bb59e83329d0bfcebe078d907985d0abf70be26b9b89a

SHA512
a12f5caf5fd39cf2ae600e4378b9296d07787a83ae76bc410b89182a2f8e3202c4ca80d811d548193dff439541de9447f9fa141ebfd771e7ab7a6053cb4af2b3

Download Submit
memory/1484-1-0x00000000001C0000-0x00000000001C3000-memory.dmp

Filesize
12KB

Download
memory/1484-0-0x0000000000400000-0x0000000000AEB000-memory.dmp

Filesize
6.9MB

Download
memory/1484-41-0x0000000000400000-0x0000000000AEB000-memory.dmp

Filesize
6.9MB

Download
memory/1484-43-0x00000000001C0000-0x00000000001C3000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing