vobfus | 1312ad1b2edbf448a1e0b500cf1e30f014f5e4a27ee8a2749f9499f225ba4d69

General

Target

1312ad1b2edbf448a1e0b500cf1e30f014f5e4a27ee8a2749f9499f225ba4d69.exe
Size

204KB
MD5

19cda4872ffa27dffb6249437a6ac768
SHA1

a280cdd2c9b09e62ba71d578ffe89181b91889b4
SHA256

1312ad1b2edbf448a1e0b500cf1e30f014f5e4a27ee8a2749f9499f225ba4d69
SHA512

df6556981de966ded57f95df746c21287f01c33c8bc08ab78f484542ced1c4887ac5a964d53ed350ce4a552a769c7d763640d336f6fef0546f99d1e5e08635ab
SSDEEP

3072:3Hjk+0oLnWFnzBHv/xWFsg8WatFBGFVWPE5ac0pG/1z+QVMbg1l:Xo/BHng5HaVG4G/1z+QVMbg1l

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	1312ad1b2edbf448a1e0b500cf1e30f014f5e4a27ee8a2749f9499f225ba4d69.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	1312ad1b2edbf448a1e0b500cf1e30f014f5e4a27ee8a2749f9499f225ba4d69.exe
Key created	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	1312ad1b2edbf448a1e0b500cf1e30f014f5e4a27ee8a2749f9499f225ba4d69.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	1312ad1b2edbf448a1e0b500cf1e30f014f5e4a27ee8a2749f9499f225ba4d69.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"	1312ad1b2edbf448a1e0b500cf1e30f014f5e4a27ee8a2749f9499f225ba4d69.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	1312ad1b2edbf448a1e0b500cf1e30f014f5e4a27ee8a2749f9499f225ba4d69.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	1312ad1b2edbf448a1e0b500cf1e30f014f5e4a27ee8a2749f9499f225ba4d69.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
1836	1312ad1b2edbf448a1e0b500cf1e30f014f5e4a27ee8a2749f9499f225ba4d69.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1836	1312ad1b2edbf448a1e0b500cf1e30f014f5e4a27ee8a2749f9499f225ba4d69.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1836	1312ad1b2edbf448a1e0b500cf1e30f014f5e4a27ee8a2749f9499f225ba4d69.exe
1836	1312ad1b2edbf448a1e0b500cf1e30f014f5e4a27ee8a2749f9499f225ba4d69.exe

C:\Users\Admin\AppData\Local\Temp\1312ad1b2edbf448a1e0b500cf1e30f014f5e4a27ee8a2749f9499f225ba4d69.exe
"C:\Users\Admin\AppData\Local\Temp\1312ad1b2edbf448a1e0b500cf1e30f014f5e4a27ee8a2749f9499f225ba4d69.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:1836

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

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
e1d192c04b477cbd5b4cdec197da8bd3

SHA1
ff22e77532c4f33060ecd1cea828f5066251f458

SHA256
e4a7fc7e862bf0176e22a5e4f137eca2fa5e12962c7acc5fb538667ab1fd805e

SHA512
22b5105de059bfc747065b58fd1d5e1943a17476ba276695cb0adfbfc0cabdba4c81a6051c88757e0b90ccc287c89f8de6218802b4de337af81d8269ccdb98d4

Download Submit
memory/1836-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1836-17-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1836-231-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads