vobfus | 8c326959f5854e31f94ec964d493a5989c636a377bc39380c4b6132bc546e98d

General

Target

8c326959f5854e31f94ec964d493a5989c636a377bc39380c4b6132bc546e98d.exe
Size

764KB
MD5

b8a6b26707be3d985df7252e3a37f796
SHA1

1359fea05a95b2489f2421d65c88038bbe30397d
SHA256

8c326959f5854e31f94ec964d493a5989c636a377bc39380c4b6132bc546e98d
SHA512

64934870254e9622a0de1ef86f2d1b5cfa3012b6fb5e7167da99fd5d7898c0915839341bb79b23670ab9e086dbe9f8209a52f6c165bfb1dacf32e94cd28da300

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:

8c326959f5854e31f94ec964d493a5989c636a377bc39380c4b6132bc546e98d.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	8c326959f5854e31f94ec964d493a5989c636a377bc39380c4b6132bc546e98d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	8c326959f5854e31f94ec964d493a5989c636a377bc39380c4b6132bc546e98d.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	8c326959f5854e31f94ec964d493a5989c636a377bc39380c4b6132bc546e98d.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"	8c326959f5854e31f94ec964d493a5989c636a377bc39380c4b6132bc546e98d.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

8c326959f5854e31f94ec964d493a5989c636a377bc39380c4b6132bc546e98d.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	8c326959f5854e31f94ec964d493a5989c636a377bc39380c4b6132bc546e98d.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run	8c326959f5854e31f94ec964d493a5989c636a377bc39380c4b6132bc546e98d.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"	8c326959f5854e31f94ec964d493a5989c636a377bc39380c4b6132bc546e98d.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	8c326959f5854e31f94ec964d493a5989c636a377bc39380c4b6132bc546e98d.exe

Script User-Agent 2 IoCs

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

Processes:

description	flow	ioc
HTTP User-Agent header	22	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:

8c326959f5854e31f94ec964d493a5989c636a377bc39380c4b6132bc546e98d.exe

pid process

4060 8c326959f5854e31f94ec964d493a5989c636a377bc39380c4b6132bc546e98d.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

8c326959f5854e31f94ec964d493a5989c636a377bc39380c4b6132bc546e98d.exe

pid process

4060 8c326959f5854e31f94ec964d493a5989c636a377bc39380c4b6132bc546e98d.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

8c326959f5854e31f94ec964d493a5989c636a377bc39380c4b6132bc546e98d.exe

pid	process
4060	8c326959f5854e31f94ec964d493a5989c636a377bc39380c4b6132bc546e98d.exe
4060	8c326959f5854e31f94ec964d493a5989c636a377bc39380c4b6132bc546e98d.exe

C:\Users\Admin\AppData\Local\Temp\8c326959f5854e31f94ec964d493a5989c636a377bc39380c4b6132bc546e98d.exe
"C:\Users\Admin\AppData\Local\Temp\8c326959f5854e31f94ec964d493a5989c636a377bc39380c4b6132bc546e98d.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:4060

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

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Downloads

memory/4060-114-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads