vobfus | 58c1e3ccd405a65d046a6d3d8e235fb2175d72e5966d94a5340e7d18ee406c1f

Analysis

max time kernel
150s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
01-09-2024 13:44

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General

Target

ed7662c5bfa5fbf91743927533ce85f050ae4e3485316ee4c97923605eb13e0a.exe
Size

204KB
MD5

04bdcfaf1056e3804c27da6e01f767fa
SHA1

c84b6b8f4687f6701417ca669c396bb0b64e4d15
SHA256

ed7662c5bfa5fbf91743927533ce85f050ae4e3485316ee4c97923605eb13e0a
SHA512

149079fda42d4ed295a4c1d1e9111c7f5cd5ef14c0cc0e4f097ca1c58e384fdef0ec3589c194185055b79a2d0a5bcee7ae0723294f9eeee2c173681644dca549
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	ed7662c5bfa5fbf91743927533ce85f050ae4e3485316ee4c97923605eb13e0a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	ed7662c5bfa5fbf91743927533ce85f050ae4e3485316ee4c97923605eb13e0a.exe
Key created	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	ed7662c5bfa5fbf91743927533ce85f050ae4e3485316ee4c97923605eb13e0a.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	ed7662c5bfa5fbf91743927533ce85f050ae4e3485316ee4c97923605eb13e0a.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"	ed7662c5bfa5fbf91743927533ce85f050ae4e3485316ee4c97923605eb13e0a.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	ed7662c5bfa5fbf91743927533ce85f050ae4e3485316ee4c97923605eb13e0a.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	ed7662c5bfa5fbf91743927533ce85f050ae4e3485316ee4c97923605eb13e0a.exe

Script User-Agent 2 IoCs

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

description	flow	ioc
HTTP User-Agent header	23	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	64	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1608	ed7662c5bfa5fbf91743927533ce85f050ae4e3485316ee4c97923605eb13e0a.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1608	ed7662c5bfa5fbf91743927533ce85f050ae4e3485316ee4c97923605eb13e0a.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1608	ed7662c5bfa5fbf91743927533ce85f050ae4e3485316ee4c97923605eb13e0a.exe
1608	ed7662c5bfa5fbf91743927533ce85f050ae4e3485316ee4c97923605eb13e0a.exe

C:\Users\Admin\AppData\Local\Temp\ed7662c5bfa5fbf91743927533ce85f050ae4e3485316ee4c97923605eb13e0a.exe
"C:\Users\Admin\AppData\Local\Temp\ed7662c5bfa5fbf91743927533ce85f050ae4e3485316ee4c97923605eb13e0a.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:1608

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
22cedfb1d619833ee94d7f14eeb93bb1

SHA1
a9f5274a8cb1887705d0f3b4a4d29a6150c4f176

SHA256
44771af7735fd55db01e081aa8ee5ed4168792f91b4aea26c213c120c16f2f2a

SHA512
601dd8248baf5e081556abe91bb209db9c6c353db0092bfd2a59e667ddfc555fe1491989510b1c003b2962521d3abe4f7e47b27e464e261761e23ca3d1b5ccdd

Download Submit
memory/1608-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1608-17-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1608-224-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads