vobfus | 0230dcf3d44f603d9132a92b7639e37fef2c1e3b8d9b7d5664a667aee34ba224

Analysis

max time kernel
149s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
31-08-2024 04:10

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General

Target

8a7c9af0feb64e3eec44d184e9818a8588d06513b6cfc417c073cbb4b988dea0.exe
Size

204KB
MD5

9b02f5e0824722223db8980678b52a48
SHA1

cb50c2eaeabb17a89ad5a631345a79f2f24acc68
SHA256

8a7c9af0feb64e3eec44d184e9818a8588d06513b6cfc417c073cbb4b988dea0
SHA512

08641e16f001dc3816a1918ca276d6fb5d6dc0546440c488aa276f6cd1517d982ff0f8ddec88181fcc92c34920cd52aa21706be06c136c37e87ba36278557de2
SSDEEP

3072:3Hjk+0oLnWFnzBHv/xWFsg8WatFBGFVWPE5ac0pG/1z+QVMbg1:Xo/BHng5HaVG4G/1z+QVMbg1

Score

10^/10

vobfus discovery persistence worm

Malware Config

Signatures

Vobfus
A widespread worm which spreads via network drives and removable media.
worm vobfus

Adds policy Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	8a7c9af0feb64e3eec44d184e9818a8588d06513b6cfc417c073cbb4b988dea0.exe
Key created	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	8a7c9af0feb64e3eec44d184e9818a8588d06513b6cfc417c073cbb4b988dea0.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	8a7c9af0feb64e3eec44d184e9818a8588d06513b6cfc417c073cbb4b988dea0.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	8a7c9af0feb64e3eec44d184e9818a8588d06513b6cfc417c073cbb4b988dea0.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	8a7c9af0feb64e3eec44d184e9818a8588d06513b6cfc417c073cbb4b988dea0.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	8a7c9af0feb64e3eec44d184e9818a8588d06513b6cfc417c073cbb4b988dea0.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8a7c9af0feb64e3eec44d184e9818a8588d06513b6cfc417c073cbb4b988dea0.exe

Script User-Agent 2 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	23	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	62	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2232	8a7c9af0feb64e3eec44d184e9818a8588d06513b6cfc417c073cbb4b988dea0.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2232	8a7c9af0feb64e3eec44d184e9818a8588d06513b6cfc417c073cbb4b988dea0.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2232	8a7c9af0feb64e3eec44d184e9818a8588d06513b6cfc417c073cbb4b988dea0.exe
2232	8a7c9af0feb64e3eec44d184e9818a8588d06513b6cfc417c073cbb4b988dea0.exe

C:\Users\Admin\AppData\Local\Temp\8a7c9af0feb64e3eec44d184e9818a8588d06513b6cfc417c073cbb4b988dea0.exe
"C:\Users\Admin\AppData\Local\Temp\8a7c9af0feb64e3eec44d184e9818a8588d06513b6cfc417c073cbb4b988dea0.exe"
1⤵
- Adds policy Run key to start application
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
PID:2232

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\AG58FPQON.exe

Filesize
204KB

MD5
7c1b96ca11f431e4670595ddf70daf50

SHA1
77c3ae4448a804ba20ea926c728508f999c11304

SHA256
8be9bfdd394fe9b650d32d442767c8b4d6393034a5ddb4e81b4f0ed26738e921

SHA512
4a4f25133332661d2cde6584def32739207a4fd653cbe04d6cb17193fe7b6250af2155582df06fa8368a4f1d3be15029df1d9abb3af1481edfa20cb90db0a780

Download Submit
memory/2232-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2232-31-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2232-238-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads