vobfus | df3397ad00e3bf8339f0ee843302a86148a6651f27a2721a798862fad2be8597

Analysis

max time kernel
149s
max time network
144s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
31-08-2024 01:09

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General

Target

78f1437e6e579e0d877095d8480e1b94e751ed9fd90228dae065fa7960decbe1.exe
Size

204KB
MD5

570a87689b233a07f3caeb035c996015
SHA1

c96abacd312c98104f80741ebb6b3d273d3e674a
SHA256

78f1437e6e579e0d877095d8480e1b94e751ed9fd90228dae065fa7960decbe1
SHA512

bd0cef71d7bd18b46b4dbc0f7ddf7212051e2432f74767a89f1fd5c2bfc241eaf8edf54d8c57b97e0cef6678b47807ad670f3aace53551c454c693b5a2435fbb
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	78f1437e6e579e0d877095d8480e1b94e751ed9fd90228dae065fa7960decbe1.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	78f1437e6e579e0d877095d8480e1b94e751ed9fd90228dae065fa7960decbe1.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	78f1437e6e579e0d877095d8480e1b94e751ed9fd90228dae065fa7960decbe1.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	78f1437e6e579e0d877095d8480e1b94e751ed9fd90228dae065fa7960decbe1.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"	78f1437e6e579e0d877095d8480e1b94e751ed9fd90228dae065fa7960decbe1.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	78f1437e6e579e0d877095d8480e1b94e751ed9fd90228dae065fa7960decbe1.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	78f1437e6e579e0d877095d8480e1b94e751ed9fd90228dae065fa7960decbe1.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
2284	78f1437e6e579e0d877095d8480e1b94e751ed9fd90228dae065fa7960decbe1.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2284	78f1437e6e579e0d877095d8480e1b94e751ed9fd90228dae065fa7960decbe1.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2284	78f1437e6e579e0d877095d8480e1b94e751ed9fd90228dae065fa7960decbe1.exe
2284	78f1437e6e579e0d877095d8480e1b94e751ed9fd90228dae065fa7960decbe1.exe

C:\Users\Admin\AppData\Local\Temp\78f1437e6e579e0d877095d8480e1b94e751ed9fd90228dae065fa7960decbe1.exe
"C:\Users\Admin\AppData\Local\Temp\78f1437e6e579e0d877095d8480e1b94e751ed9fd90228dae065fa7960decbe1.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:2284

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
4a3a47cca919c4139dfae72236b9ebf9

SHA1
3c284afec7bf560837ec3cce8fa3d7d4db389c00

SHA256
c9736b46eef135eec0e5a4a6cc91863677511a4ee257d992dc254919dcae94fc

SHA512
f1cbf7c02e12c8516216e7526f906931999a7e87738a97685ff63680b44e66c2342dc8b3690f5411569ace5a8c30b1d9366f2fccae3dabde546e7dad5d317d17

Download Submit
memory/2284-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2284-31-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2284-238-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads