vobfus | 6acfa6198352af3eef4768c0c759c223b8d1d853d51a780f7673de6866abd5f6

Analysis

max time kernel
149s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-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-1-5-21-1181767204-2009306918-3718769404-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	6acfa6198352af3eef4768c0c759c223b8d1d853d51a780f7673de6866abd5f6.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	6acfa6198352af3eef4768c0c759c223b8d1d853d51a780f7673de6866abd5f6.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\SOFTWARE\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	21	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	69	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4916	6acfa6198352af3eef4768c0c759c223b8d1d853d51a780f7673de6866abd5f6.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4916	6acfa6198352af3eef4768c0c759c223b8d1d853d51a780f7673de6866abd5f6.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4916	6acfa6198352af3eef4768c0c759c223b8d1d853d51a780f7673de6866abd5f6.exe
4916	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:4916

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4160,i,11746347647270949551,7786733067759450703,262144 --variations-seed-version --mojo-platform-channel-handle=1288 /prefetch:8
1⤵
PID:3120

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
c8567408c469535c3f5a6606e6ed0db3

SHA1
ae2bbb861579fe946164f40c0aaf00c42afc86ab

SHA256
e018501dcefa3a4b8dc919b5aa3b4cef6693eb539318e3830ed552a9482834f1

SHA512
ce1ffe18fd66db8d864d87da753472ab3783b036cff67cfbace65172b7fdfb302822a5acc51f6e899a8783409b082349f55d818a6a77e521eb7446f2b64eecc6

Download Submit
memory/4916-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/4916-38-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/4916-252-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads