vobfus | 5b9f0c0ae022498663eaa86c4ba400ee3d03f4424df1bd4e08e5edb26c11c5d7

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
30-08-2024 22:21

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General

Target

57615dc0ce2d330e4875fab9e73ab067fb75d00821f0dd8697ee2fd8c3c68f8b.exe
Size

204KB
MD5

13d2c32c0c9d99c18f59779553c8afb4
SHA1

c54d138840c217e8d2c2b932b0e6e072cdcaab4b
SHA256

57615dc0ce2d330e4875fab9e73ab067fb75d00821f0dd8697ee2fd8c3c68f8b
SHA512

9f994797849784b7352746d03228698ce191e5850e59b11a688d0055e61631bbe8658a955930f168621de16f3e14793716f6c249852b07a4eeb22d6544ad905c
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
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	57615dc0ce2d330e4875fab9e73ab067fb75d00821f0dd8697ee2fd8c3c68f8b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	57615dc0ce2d330e4875fab9e73ab067fb75d00821f0dd8697ee2fd8c3c68f8b.exe
Key created	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	57615dc0ce2d330e4875fab9e73ab067fb75d00821f0dd8697ee2fd8c3c68f8b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	57615dc0ce2d330e4875fab9e73ab067fb75d00821f0dd8697ee2fd8c3c68f8b.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\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	57615dc0ce2d330e4875fab9e73ab067fb75d00821f0dd8697ee2fd8c3c68f8b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	57615dc0ce2d330e4875fab9e73ab067fb75d00821f0dd8697ee2fd8c3c68f8b.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	57615dc0ce2d330e4875fab9e73ab067fb75d00821f0dd8697ee2fd8c3c68f8b.exe

Script User-Agent 2 IoCs

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

description	flow	ioc
HTTP User-Agent header	64	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	23	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4652	57615dc0ce2d330e4875fab9e73ab067fb75d00821f0dd8697ee2fd8c3c68f8b.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4652	57615dc0ce2d330e4875fab9e73ab067fb75d00821f0dd8697ee2fd8c3c68f8b.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4652	57615dc0ce2d330e4875fab9e73ab067fb75d00821f0dd8697ee2fd8c3c68f8b.exe
4652	57615dc0ce2d330e4875fab9e73ab067fb75d00821f0dd8697ee2fd8c3c68f8b.exe

C:\Users\Admin\AppData\Local\Temp\57615dc0ce2d330e4875fab9e73ab067fb75d00821f0dd8697ee2fd8c3c68f8b.exe
"C:\Users\Admin\AppData\Local\Temp\57615dc0ce2d330e4875fab9e73ab067fb75d00821f0dd8697ee2fd8c3c68f8b.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:4652

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
0ff21023a46c2451970a424c13fc1152

SHA1
6bd9db1bd5777230bcfe058f0165f40967f0a243

SHA256
59da2061fa34ed1223353421b3b3c32a5c05f4632e934747d158e41a0f05ada2

SHA512
c60958b8bb76490ff479dcf407b606ef7f3c0b385fa967082358c13b8373381b4801b0c3b08dcb418b1b14138185529ba79b52927f30218349bba6f47b703092

Download Submit
memory/4652-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/4652-17-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/4652-224-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads