vobfus | 55b81333ce5bdb1c3f57663be945cdb918a7052774d30c6a65b96b5082c43ede

Analysis

max time kernel
149s
max time network
141s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03-09-2024 16:04

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General

Target

402b7f6127a11b824e618e6bc2adb6005a46081fe9252020cacabdb32c4a6302.exe
Size

204KB
MD5

6c3c5dd37301cefb88af00b46cb67587
SHA1

87f871215a1a786ce9ce477620fbbdaf8c86d5b7
SHA256

402b7f6127a11b824e618e6bc2adb6005a46081fe9252020cacabdb32c4a6302
SHA512

98cfd9402657bd4184acba374d1a82de3b290bb6cdb55eb1017505f10e38925c4360ba6acc4a2ca4ff0ad83904ed89d56cac844b8bd9621a0080b096dacd1ff0
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	402b7f6127a11b824e618e6bc2adb6005a46081fe9252020cacabdb32c4a6302.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	402b7f6127a11b824e618e6bc2adb6005a46081fe9252020cacabdb32c4a6302.exe
Key created	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	402b7f6127a11b824e618e6bc2adb6005a46081fe9252020cacabdb32c4a6302.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	402b7f6127a11b824e618e6bc2adb6005a46081fe9252020cacabdb32c4a6302.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"	402b7f6127a11b824e618e6bc2adb6005a46081fe9252020cacabdb32c4a6302.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	402b7f6127a11b824e618e6bc2adb6005a46081fe9252020cacabdb32c4a6302.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	402b7f6127a11b824e618e6bc2adb6005a46081fe9252020cacabdb32c4a6302.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
2652	402b7f6127a11b824e618e6bc2adb6005a46081fe9252020cacabdb32c4a6302.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2652	402b7f6127a11b824e618e6bc2adb6005a46081fe9252020cacabdb32c4a6302.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2652	402b7f6127a11b824e618e6bc2adb6005a46081fe9252020cacabdb32c4a6302.exe
2652	402b7f6127a11b824e618e6bc2adb6005a46081fe9252020cacabdb32c4a6302.exe

C:\Users\Admin\AppData\Local\Temp\402b7f6127a11b824e618e6bc2adb6005a46081fe9252020cacabdb32c4a6302.exe
"C:\Users\Admin\AppData\Local\Temp\402b7f6127a11b824e618e6bc2adb6005a46081fe9252020cacabdb32c4a6302.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:2652

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
6230b6a7caeaccfd5fff5358bbdc2be9

SHA1
64d366f94ee817a1464f059dedee6acc9955f5c1

SHA256
2cf5d0c4210138f6c0553dad679b2565411503bed02d55b5c16b7f989e4ec36a

SHA512
57dc89083ed6c39adf366aa628578ddd091ae77daa9ca6a3ca1ca5662a8ac17fc6e3da3a96b2e2d4fac4f96a73db14f9f59c958bda8e2638881b6fdd690037f1

Download Submit
memory/2652-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2652-24-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2652-231-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads