vobfus | 6acfa6198352af3eef4768c0c759c223b8d1d853d51a780f7673de6866abd5f6

Analysis

max time kernel
149s
max time network
146s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
02/06/2024, 23:09

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General

Target

6acfa6198352af3eef4768c0c759c223b8d1d853d51a780f7673de6866abd5f6.exe
Size

208KB
MD5

95a41a0c44e30fb9a2072a686b945d06
SHA1

0763dfe074093ba42f0707c54b86ba99975d4a76
SHA256

6acfa6198352af3eef4768c0c759c223b8d1d853d51a780f7673de6866abd5f6
SHA512

984a219ba9baa422949cd537d1735c9396072c24ca4b73e68b601729c3a62961efd0863ec6a2440d9120f05697d8381ee400e6a83514fbc4398c708e8f2342c7
SSDEEP

3072:3Hjk+0oLnWFnzBHv/xWFsg8WatFBGFVWPE5ac0pG/1z+QVMbg1:Xo/BHng5HaVG4G/1z+QVMbg1

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

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	6acfa6198352af3eef4768c0c759c223b8d1d853d51a780f7673de6866abd5f6.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	6acfa6198352af3eef4768c0c759c223b8d1d853d51a780f7673de6866abd5f6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	6acfa6198352af3eef4768c0c759c223b8d1d853d51a780f7673de6866abd5f6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	6acfa6198352af3eef4768c0c759c223b8d1d853d51a780f7673de6866abd5f6.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	6acfa6198352af3eef4768c0c759c223b8d1d853d51a780f7673de6866abd5f6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	6acfa6198352af3eef4768c0c759c223b8d1d853d51a780f7673de6866abd5f6.exe

Script User-Agent 2 IoCs

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

description	flow	ioc
HTTP User-Agent header	3	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	4	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2356	6acfa6198352af3eef4768c0c759c223b8d1d853d51a780f7673de6866abd5f6.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2356	6acfa6198352af3eef4768c0c759c223b8d1d853d51a780f7673de6866abd5f6.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2356	6acfa6198352af3eef4768c0c759c223b8d1d853d51a780f7673de6866abd5f6.exe
2356	6acfa6198352af3eef4768c0c759c223b8d1d853d51a780f7673de6866abd5f6.exe

C:\Users\Admin\AppData\Local\Temp\6acfa6198352af3eef4768c0c759c223b8d1d853d51a780f7673de6866abd5f6.exe
"C:\Users\Admin\AppData\Local\Temp\6acfa6198352af3eef4768c0c759c223b8d1d853d51a780f7673de6866abd5f6.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:2356

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\AG58FPQON.exe

Filesize
208KB

MD5
6e33b82dd40e2c75094e649ae4b60d55

SHA1
ef7d6e695a6bd1eb6d77789da2e2bb6d64e894c7

SHA256
8f79c1d9f741627505ea69d1ab8d7281366fe490b4a5f6c777e171f134227b48

SHA512
725de79941e5b27a4fc6c931cd75ff1bd9526c2a173be48d2ddee0a5c3751ca22e8e41f3a6087856db179345e2738ec0b436b0be5bcf39a685b61b430020f57d

Download Submit
memory/2356-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2356-10-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2356-67-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2356-281-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads