vobfus | 50b45cd978c8c6cdd63edbf37fd9bc66cd12cca2ef264a5b2968618cace20482

General

Target

50b45cd978c8c6cdd63edbf37fd9bc66cd12cca2ef264a5b2968618cace20482.exe
Size

220KB
MD5

b7dd0435cfd59929fb75c522f1b1e838
SHA1

19ec6983a31b1d1b81352223815c0511b70ba2fa
SHA256

50b45cd978c8c6cdd63edbf37fd9bc66cd12cca2ef264a5b2968618cace20482
SHA512

211269f58bff0da41d6d24af4391569baa323d80e2ab76479f45061937e2ab52d8c08bfe0be0852b83f51ef47866ee3a9815ca4c76d595363263a7918f7527c5

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:

50b45cd978c8c6cdd63edbf37fd9bc66cd12cca2ef264a5b2968618cace20482.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	50b45cd978c8c6cdd63edbf37fd9bc66cd12cca2ef264a5b2968618cace20482.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	50b45cd978c8c6cdd63edbf37fd9bc66cd12cca2ef264a5b2968618cace20482.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	50b45cd978c8c6cdd63edbf37fd9bc66cd12cca2ef264a5b2968618cace20482.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"	50b45cd978c8c6cdd63edbf37fd9bc66cd12cca2ef264a5b2968618cace20482.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

50b45cd978c8c6cdd63edbf37fd9bc66cd12cca2ef264a5b2968618cace20482.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	50b45cd978c8c6cdd63edbf37fd9bc66cd12cca2ef264a5b2968618cace20482.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run	50b45cd978c8c6cdd63edbf37fd9bc66cd12cca2ef264a5b2968618cace20482.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"	50b45cd978c8c6cdd63edbf37fd9bc66cd12cca2ef264a5b2968618cace20482.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	50b45cd978c8c6cdd63edbf37fd9bc66cd12cca2ef264a5b2968618cace20482.exe

Script User-Agent 2 IoCs

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

Processes:

description	flow	ioc
HTTP User-Agent header	17	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

Processes:

50b45cd978c8c6cdd63edbf37fd9bc66cd12cca2ef264a5b2968618cace20482.exe

pid process

2256 50b45cd978c8c6cdd63edbf37fd9bc66cd12cca2ef264a5b2968618cace20482.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

50b45cd978c8c6cdd63edbf37fd9bc66cd12cca2ef264a5b2968618cace20482.exe

pid process

2256 50b45cd978c8c6cdd63edbf37fd9bc66cd12cca2ef264a5b2968618cace20482.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

50b45cd978c8c6cdd63edbf37fd9bc66cd12cca2ef264a5b2968618cace20482.exe

pid	process
2256	50b45cd978c8c6cdd63edbf37fd9bc66cd12cca2ef264a5b2968618cace20482.exe
2256	50b45cd978c8c6cdd63edbf37fd9bc66cd12cca2ef264a5b2968618cace20482.exe

C:\Users\Admin\AppData\Local\Temp\50b45cd978c8c6cdd63edbf37fd9bc66cd12cca2ef264a5b2968618cace20482.exe
"C:\Users\Admin\AppData\Local\Temp\50b45cd978c8c6cdd63edbf37fd9bc66cd12cca2ef264a5b2968618cace20482.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:2256

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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