vobfus | aa55ea84bff6b246f2b64092be17ed94b8b3633490cd0b976d0099261dc57dab

General

Target

aa55ea84bff6b246f2b64092be17ed94b8b3633490cd0b976d0099261dc57dab.exe
Size

220KB
MD5

bd235c75a4c5229f828baa256f3ef50c
SHA1

a49d0d253067757c5668118857cb40382348fc29
SHA256

aa55ea84bff6b246f2b64092be17ed94b8b3633490cd0b976d0099261dc57dab
SHA512

4a4935bd7efda5ecefa325086b974a471c5cf3e3e19af77b9e0e757f919142e578e1696fe7ac4fe731182d66e27bbc7c5b9d13b6319c206ec021d940347d033a

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:

aa55ea84bff6b246f2b64092be17ed94b8b3633490cd0b976d0099261dc57dab.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	aa55ea84bff6b246f2b64092be17ed94b8b3633490cd0b976d0099261dc57dab.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	aa55ea84bff6b246f2b64092be17ed94b8b3633490cd0b976d0099261dc57dab.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	aa55ea84bff6b246f2b64092be17ed94b8b3633490cd0b976d0099261dc57dab.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"	aa55ea84bff6b246f2b64092be17ed94b8b3633490cd0b976d0099261dc57dab.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

aa55ea84bff6b246f2b64092be17ed94b8b3633490cd0b976d0099261dc57dab.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	aa55ea84bff6b246f2b64092be17ed94b8b3633490cd0b976d0099261dc57dab.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	aa55ea84bff6b246f2b64092be17ed94b8b3633490cd0b976d0099261dc57dab.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run	aa55ea84bff6b246f2b64092be17ed94b8b3633490cd0b976d0099261dc57dab.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"	aa55ea84bff6b246f2b64092be17ed94b8b3633490cd0b976d0099261dc57dab.exe

Script User-Agent 2 IoCs

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

Processes:

description	flow	ioc
HTTP User-Agent header	24	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	27	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

aa55ea84bff6b246f2b64092be17ed94b8b3633490cd0b976d0099261dc57dab.exe

pid process

2208 aa55ea84bff6b246f2b64092be17ed94b8b3633490cd0b976d0099261dc57dab.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

aa55ea84bff6b246f2b64092be17ed94b8b3633490cd0b976d0099261dc57dab.exe

pid process

2208 aa55ea84bff6b246f2b64092be17ed94b8b3633490cd0b976d0099261dc57dab.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

aa55ea84bff6b246f2b64092be17ed94b8b3633490cd0b976d0099261dc57dab.exe

pid	process
2208	aa55ea84bff6b246f2b64092be17ed94b8b3633490cd0b976d0099261dc57dab.exe
2208	aa55ea84bff6b246f2b64092be17ed94b8b3633490cd0b976d0099261dc57dab.exe

C:\Users\Admin\AppData\Local\Temp\aa55ea84bff6b246f2b64092be17ed94b8b3633490cd0b976d0099261dc57dab.exe
"C:\Users\Admin\AppData\Local\Temp\aa55ea84bff6b246f2b64092be17ed94b8b3633490cd0b976d0099261dc57dab.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:2208

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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