vobfus | f53e0a29315b1b593368cfd9b2b38e8030b6d07b6d981f0bd94d8bcbbb29700c

General

Target

f53e0a29315b1b593368cfd9b2b38e8030b6d07b6d981f0bd94d8bcbbb29700c.exe
Size

572KB
MD5

c0fbdfefebbdc5efae453943f1dcab24
SHA1

7a8ed27a5c73a4e9f18d227f7261214ce5cd3367
SHA256

f53e0a29315b1b593368cfd9b2b38e8030b6d07b6d981f0bd94d8bcbbb29700c
SHA512

c85af047b686003f245f5d85ad47e2efcc380bd92ba22e2f3e7cc26cf59e301a3418b6b2222ab9eb0a0938d4c08acf54678023264e25b0aede1c2bf31c6e5b03

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:

f53e0a29315b1b593368cfd9b2b38e8030b6d07b6d981f0bd94d8bcbbb29700c.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	f53e0a29315b1b593368cfd9b2b38e8030b6d07b6d981f0bd94d8bcbbb29700c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	f53e0a29315b1b593368cfd9b2b38e8030b6d07b6d981f0bd94d8bcbbb29700c.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	f53e0a29315b1b593368cfd9b2b38e8030b6d07b6d981f0bd94d8bcbbb29700c.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"	f53e0a29315b1b593368cfd9b2b38e8030b6d07b6d981f0bd94d8bcbbb29700c.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

f53e0a29315b1b593368cfd9b2b38e8030b6d07b6d981f0bd94d8bcbbb29700c.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	f53e0a29315b1b593368cfd9b2b38e8030b6d07b6d981f0bd94d8bcbbb29700c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	f53e0a29315b1b593368cfd9b2b38e8030b6d07b6d981f0bd94d8bcbbb29700c.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run	f53e0a29315b1b593368cfd9b2b38e8030b6d07b6d981f0bd94d8bcbbb29700c.exe
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"	f53e0a29315b1b593368cfd9b2b38e8030b6d07b6d981f0bd94d8bcbbb29700c.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	7	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

f53e0a29315b1b593368cfd9b2b38e8030b6d07b6d981f0bd94d8bcbbb29700c.exe

pid process

1088 f53e0a29315b1b593368cfd9b2b38e8030b6d07b6d981f0bd94d8bcbbb29700c.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

f53e0a29315b1b593368cfd9b2b38e8030b6d07b6d981f0bd94d8bcbbb29700c.exe

pid process

1088 f53e0a29315b1b593368cfd9b2b38e8030b6d07b6d981f0bd94d8bcbbb29700c.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

f53e0a29315b1b593368cfd9b2b38e8030b6d07b6d981f0bd94d8bcbbb29700c.exe

pid	process
1088	f53e0a29315b1b593368cfd9b2b38e8030b6d07b6d981f0bd94d8bcbbb29700c.exe
1088	f53e0a29315b1b593368cfd9b2b38e8030b6d07b6d981f0bd94d8bcbbb29700c.exe

C:\Users\Admin\AppData\Local\Temp\f53e0a29315b1b593368cfd9b2b38e8030b6d07b6d981f0bd94d8bcbbb29700c.exe
"C:\Users\Admin\AppData\Local\Temp\f53e0a29315b1b593368cfd9b2b38e8030b6d07b6d981f0bd94d8bcbbb29700c.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:1088

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/1088-59-0x0000000000400000-0x0000000000434000-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