vobfus | c88bbe9f66baa07aae1c2868e9e3b9ae3052b95ff246074030f9148c72df0fa7

Analysis

max time kernel
119s
max time network
93s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-11-2024 07:50

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General

Target

c88bbe9f66baa07aae1c2868e9e3b9ae3052b95ff246074030f9148c72df0fa7.exe
Size

204KB
MD5

156a9a84ab1b3bffb4ec916a2c154696
SHA1

37762b30c2c3051e549903551dc0bd020ec89d4f
SHA256

c88bbe9f66baa07aae1c2868e9e3b9ae3052b95ff246074030f9148c72df0fa7
SHA512

43aa5b277e02558efdf7fb1acf8633bb06de02978dc926512148836d7f20d3621bca1252efef0e9d0f0efb729aa3c44e33477d59838f8dcfacd7cbe9f7bef723
SSDEEP

3072:3Hjk+0oLnWFnzBHv/xWFsg8WatFBGFVWPE5ac0pG/1z+QVMbg1a:Xo/BHng5HaVG4G/1z+QVMbg1a

Score

10^/10

vobfus discovery persistence worm

Malware Config

Signatures

Vobfus
A widespread worm which spreads via network drives and removable media.
worm vobfus
Vobfus family
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	c88bbe9f66baa07aae1c2868e9e3b9ae3052b95ff246074030f9148c72df0fa7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	c88bbe9f66baa07aae1c2868e9e3b9ae3052b95ff246074030f9148c72df0fa7.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	c88bbe9f66baa07aae1c2868e9e3b9ae3052b95ff246074030f9148c72df0fa7.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	c88bbe9f66baa07aae1c2868e9e3b9ae3052b95ff246074030f9148c72df0fa7.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"	c88bbe9f66baa07aae1c2868e9e3b9ae3052b95ff246074030f9148c72df0fa7.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	c88bbe9f66baa07aae1c2868e9e3b9ae3052b95ff246074030f9148c72df0fa7.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	c88bbe9f66baa07aae1c2868e9e3b9ae3052b95ff246074030f9148c72df0fa7.exe

Script User-Agent 1 IoCs

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

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

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1976	c88bbe9f66baa07aae1c2868e9e3b9ae3052b95ff246074030f9148c72df0fa7.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1976	c88bbe9f66baa07aae1c2868e9e3b9ae3052b95ff246074030f9148c72df0fa7.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1976	c88bbe9f66baa07aae1c2868e9e3b9ae3052b95ff246074030f9148c72df0fa7.exe
1976	c88bbe9f66baa07aae1c2868e9e3b9ae3052b95ff246074030f9148c72df0fa7.exe

C:\Users\Admin\AppData\Local\Temp\c88bbe9f66baa07aae1c2868e9e3b9ae3052b95ff246074030f9148c72df0fa7.exe
"C:\Users\Admin\AppData\Local\Temp\c88bbe9f66baa07aae1c2868e9e3b9ae3052b95ff246074030f9148c72df0fa7.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:1976

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

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Downloads

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

Filesize
204KB

MD5
80e2932f9e2575c5f334ee9fb5c52d03

SHA1
3cb160934cc0fdb526419ba852ae760a7d12d62f

SHA256
8a1575a1a52460650912e9e696f190c41c081e7754747e0934ac842b0846e64e

SHA512
28f12567ac8fd42f9a66d91adf7d9bb72f5aec26ac8e4d62281b7cde490040d7d4f62770884ffe2d45e5f7643110cccae9f5c84dd142c82317fd73817e2f6750

Download Submit
memory/1976-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1976-31-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1976-238-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads