vobfus | ac920cc8aa80e0b03c8fbaabac1ae1102c8da31e1f73f9d56b98803cbfc2a561

General

Target

ac920cc8aa80e0b03c8fbaabac1ae1102c8da31e1f73f9d56b98803cbfc2a561.exe
Size

1.9MB
MD5

bf39e5c7d11b155c77de71d7c1b66d16
SHA1

d9caa9e32d4f2894df72e2e62319043428834011
SHA256

ac920cc8aa80e0b03c8fbaabac1ae1102c8da31e1f73f9d56b98803cbfc2a561
SHA512

2cca235d75521ec19f688ea0e152c4fa62bcc70e0d0d6e3343fdd6c0d8ea612424593dc94a881bc2c0611305599f124d50aca1bc2220b89795c4fb2d12038db1

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:

ac920cc8aa80e0b03c8fbaabac1ae1102c8da31e1f73f9d56b98803cbfc2a561.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	ac920cc8aa80e0b03c8fbaabac1ae1102c8da31e1f73f9d56b98803cbfc2a561.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	ac920cc8aa80e0b03c8fbaabac1ae1102c8da31e1f73f9d56b98803cbfc2a561.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	ac920cc8aa80e0b03c8fbaabac1ae1102c8da31e1f73f9d56b98803cbfc2a561.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	ac920cc8aa80e0b03c8fbaabac1ae1102c8da31e1f73f9d56b98803cbfc2a561.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

ac920cc8aa80e0b03c8fbaabac1ae1102c8da31e1f73f9d56b98803cbfc2a561.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run	ac920cc8aa80e0b03c8fbaabac1ae1102c8da31e1f73f9d56b98803cbfc2a561.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	ac920cc8aa80e0b03c8fbaabac1ae1102c8da31e1f73f9d56b98803cbfc2a561.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	ac920cc8aa80e0b03c8fbaabac1ae1102c8da31e1f73f9d56b98803cbfc2a561.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	ac920cc8aa80e0b03c8fbaabac1ae1102c8da31e1f73f9d56b98803cbfc2a561.exe

Script User-Agent 2 IoCs

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

Processes:

description	flow	ioc
HTTP User-Agent header	23	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	16	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

ac920cc8aa80e0b03c8fbaabac1ae1102c8da31e1f73f9d56b98803cbfc2a561.exe

pid process

3768 ac920cc8aa80e0b03c8fbaabac1ae1102c8da31e1f73f9d56b98803cbfc2a561.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

ac920cc8aa80e0b03c8fbaabac1ae1102c8da31e1f73f9d56b98803cbfc2a561.exe

pid process

3768 ac920cc8aa80e0b03c8fbaabac1ae1102c8da31e1f73f9d56b98803cbfc2a561.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

ac920cc8aa80e0b03c8fbaabac1ae1102c8da31e1f73f9d56b98803cbfc2a561.exe

pid	process
3768	ac920cc8aa80e0b03c8fbaabac1ae1102c8da31e1f73f9d56b98803cbfc2a561.exe
3768	ac920cc8aa80e0b03c8fbaabac1ae1102c8da31e1f73f9d56b98803cbfc2a561.exe

C:\Users\Admin\AppData\Local\Temp\ac920cc8aa80e0b03c8fbaabac1ae1102c8da31e1f73f9d56b98803cbfc2a561.exe
"C:\Users\Admin\AppData\Local\Temp\ac920cc8aa80e0b03c8fbaabac1ae1102c8da31e1f73f9d56b98803cbfc2a561.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:3768

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

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Downloads

memory/3768-114-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads