vobfus | 3bc5aff621dba568fbd60396c4d384da3f976cdef7b8e1986f77b5cd52a5f7d5

General

Target

3bc5aff621dba568fbd60396c4d384da3f976cdef7b8e1986f77b5cd52a5f7d5.exe
Size

572KB
MD5

b80b70d75cbeff3124a445f333811861
SHA1

babe2df011c85d1d4c2b492d9a72a05a01c27856
SHA256

3bc5aff621dba568fbd60396c4d384da3f976cdef7b8e1986f77b5cd52a5f7d5
SHA512

f20aa43abea76d1d582a24781fa235fa689bab3ef62116e7f0f0e9cf70a63b84a9b51be9391cc095249c06c51ae846150e462b4c992198ac15911978245224b4

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:

3bc5aff621dba568fbd60396c4d384da3f976cdef7b8e1986f77b5cd52a5f7d5.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	3bc5aff621dba568fbd60396c4d384da3f976cdef7b8e1986f77b5cd52a5f7d5.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	3bc5aff621dba568fbd60396c4d384da3f976cdef7b8e1986f77b5cd52a5f7d5.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	3bc5aff621dba568fbd60396c4d384da3f976cdef7b8e1986f77b5cd52a5f7d5.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"	3bc5aff621dba568fbd60396c4d384da3f976cdef7b8e1986f77b5cd52a5f7d5.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

3bc5aff621dba568fbd60396c4d384da3f976cdef7b8e1986f77b5cd52a5f7d5.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	3bc5aff621dba568fbd60396c4d384da3f976cdef7b8e1986f77b5cd52a5f7d5.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run	3bc5aff621dba568fbd60396c4d384da3f976cdef7b8e1986f77b5cd52a5f7d5.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"	3bc5aff621dba568fbd60396c4d384da3f976cdef7b8e1986f77b5cd52a5f7d5.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	3bc5aff621dba568fbd60396c4d384da3f976cdef7b8e1986f77b5cd52a5f7d5.exe

Script User-Agent 2 IoCs

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

Processes:

description	flow	ioc
HTTP User-Agent header	15	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	26	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

3bc5aff621dba568fbd60396c4d384da3f976cdef7b8e1986f77b5cd52a5f7d5.exe

pid process

4048 3bc5aff621dba568fbd60396c4d384da3f976cdef7b8e1986f77b5cd52a5f7d5.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

3bc5aff621dba568fbd60396c4d384da3f976cdef7b8e1986f77b5cd52a5f7d5.exe

pid process

4048 3bc5aff621dba568fbd60396c4d384da3f976cdef7b8e1986f77b5cd52a5f7d5.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

3bc5aff621dba568fbd60396c4d384da3f976cdef7b8e1986f77b5cd52a5f7d5.exe

pid	process
4048	3bc5aff621dba568fbd60396c4d384da3f976cdef7b8e1986f77b5cd52a5f7d5.exe
4048	3bc5aff621dba568fbd60396c4d384da3f976cdef7b8e1986f77b5cd52a5f7d5.exe

C:\Users\Admin\AppData\Local\Temp\3bc5aff621dba568fbd60396c4d384da3f976cdef7b8e1986f77b5cd52a5f7d5.exe
"C:\Users\Admin\AppData\Local\Temp\3bc5aff621dba568fbd60396c4d384da3f976cdef7b8e1986f77b5cd52a5f7d5.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:4048

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/4048-114-0x0000000000400000-0x0000000000434000-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