vobfus | 3aae6e0384895349e46eaa61444c701c8c052af823b2fab5a11bb96fcf6362fa

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
31-08-2024 12:30

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

16cc455f3264931ad4ed9dba96987580d6dc69fbf132557492e4ccee0127cc52.exe
Size

204KB
MD5

b3ebc5a8d4006c203f6fd68762071a4d
SHA1

f2f96fcf195bc828a38ceb1b6e51c820ef1103ff
SHA256

16cc455f3264931ad4ed9dba96987580d6dc69fbf132557492e4ccee0127cc52
SHA512

8690a259bd4ecd21c76850ac43db47e86056cff2c4dc4d008c2c12caecf5ae17a303236e44b4ba56add1a8da039d8cb0cfad12ed2653b3893e8e0fb0749fbfd2
SSDEEP

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

Score

10^/10

vobfus discovery 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\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	16cc455f3264931ad4ed9dba96987580d6dc69fbf132557492e4ccee0127cc52.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	16cc455f3264931ad4ed9dba96987580d6dc69fbf132557492e4ccee0127cc52.exe
Key created	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	16cc455f3264931ad4ed9dba96987580d6dc69fbf132557492e4ccee0127cc52.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	16cc455f3264931ad4ed9dba96987580d6dc69fbf132557492e4ccee0127cc52.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"	16cc455f3264931ad4ed9dba96987580d6dc69fbf132557492e4ccee0127cc52.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	16cc455f3264931ad4ed9dba96987580d6dc69fbf132557492e4ccee0127cc52.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	16cc455f3264931ad4ed9dba96987580d6dc69fbf132557492e4ccee0127cc52.exe

Script User-Agent 2 IoCs

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

description	flow	ioc
HTTP User-Agent header	35	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	73	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
5504	16cc455f3264931ad4ed9dba96987580d6dc69fbf132557492e4ccee0127cc52.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
5504	16cc455f3264931ad4ed9dba96987580d6dc69fbf132557492e4ccee0127cc52.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5504	16cc455f3264931ad4ed9dba96987580d6dc69fbf132557492e4ccee0127cc52.exe
5504	16cc455f3264931ad4ed9dba96987580d6dc69fbf132557492e4ccee0127cc52.exe

C:\Users\Admin\AppData\Local\Temp\16cc455f3264931ad4ed9dba96987580d6dc69fbf132557492e4ccee0127cc52.exe
"C:\Users\Admin\AppData\Local\Temp\16cc455f3264931ad4ed9dba96987580d6dc69fbf132557492e4ccee0127cc52.exe"
1⤵
- Adds policy Run key to start application
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
PID:5504

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
204KB

MD5
bd85c46e45b3898dea2697ab708df04e

SHA1
ec405fa826f850fc7cfc48c0d64050c0574f43b5

SHA256
5f2aaa80bf9214e5f710273a325dcd6e47c0300788b97d48fd2e18be2bf1b832

SHA512
663a621cab2c8a02bf7c3834c794b24d300fb0b3f9a71aa39b06e58cda46fb0e6fc0701a9a5761e3408871277b20c5e54445f46918b4d82a139e9055a73dd9cc

Download Submit
memory/5504-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/5504-10-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/5504-67-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/5504-281-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads