vobfus | db88bfafa46887e0cafbfee51940f14b81ec965b673491ea62029fb911ade585

General

Target

db88bfafa46887e0cafbfee51940f14b81ec965b673491ea62029fb911ade585.exe
Size

439KB
MD5

b99c8d0713a0263a2c9d6ae83620882c
SHA1

111f4d2967999e8e1acab8b5791d7edbf6773178
SHA256

db88bfafa46887e0cafbfee51940f14b81ec965b673491ea62029fb911ade585
SHA512

910297c5ab33ba05ff8e973aad154b0bad9bf6b5353013f1dffe384ff3f93a4dbcf6a5abcb198e266fa67580c5394fabfc0c104a0bde8c392fcda3859fad51dd

Score

10^/10

vobfus 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

T1060

Modify Registry

T1112

Processes:

db88bfafa46887e0cafbfee51940f14b81ec965b673491ea62029fb911ade585.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	db88bfafa46887e0cafbfee51940f14b81ec965b673491ea62029fb911ade585.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	db88bfafa46887e0cafbfee51940f14b81ec965b673491ea62029fb911ade585.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	db88bfafa46887e0cafbfee51940f14b81ec965b673491ea62029fb911ade585.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	db88bfafa46887e0cafbfee51940f14b81ec965b673491ea62029fb911ade585.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

db88bfafa46887e0cafbfee51940f14b81ec965b673491ea62029fb911ade585.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	db88bfafa46887e0cafbfee51940f14b81ec965b673491ea62029fb911ade585.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	db88bfafa46887e0cafbfee51940f14b81ec965b673491ea62029fb911ade585.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	db88bfafa46887e0cafbfee51940f14b81ec965b673491ea62029fb911ade585.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run	db88bfafa46887e0cafbfee51940f14b81ec965b673491ea62029fb911ade585.exe

Script User-Agent 2 IoCs

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

Processes:

description	flow	ioc
HTTP User-Agent header	6	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	8	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

db88bfafa46887e0cafbfee51940f14b81ec965b673491ea62029fb911ade585.exe

pid process

1076 db88bfafa46887e0cafbfee51940f14b81ec965b673491ea62029fb911ade585.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

db88bfafa46887e0cafbfee51940f14b81ec965b673491ea62029fb911ade585.exe

pid process

1076 db88bfafa46887e0cafbfee51940f14b81ec965b673491ea62029fb911ade585.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

db88bfafa46887e0cafbfee51940f14b81ec965b673491ea62029fb911ade585.exe

pid	process
1076	db88bfafa46887e0cafbfee51940f14b81ec965b673491ea62029fb911ade585.exe
1076	db88bfafa46887e0cafbfee51940f14b81ec965b673491ea62029fb911ade585.exe

C:\Users\Admin\AppData\Local\Temp\db88bfafa46887e0cafbfee51940f14b81ec965b673491ea62029fb911ade585.exe
"C:\Users\Admin\AppData\Local\Temp\db88bfafa46887e0cafbfee51940f14b81ec965b673491ea62029fb911ade585.exe"
1⤵
- Adds policy Run key to start application
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
PID:1076

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

2

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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