vobfus | 63ba0e5cd54b96e9b0fcebeb66e2dab5662c813c7ee7886f5f77912f1c0774de

Analysis

max time kernel
150s
max time network
143s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
01-09-2024 01:45

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General

Target

bba873f28487d3f7eb53b66f2c2894d6041ed003b9c4ab4aab27e8cbfddf80c5.exe
Size

204KB
MD5

7b8474a3424cff431e0afff8cf5bf4cc
SHA1

bf6a5344c0be5bd3cdae8af60ddeffb8ac63092c
SHA256

bba873f28487d3f7eb53b66f2c2894d6041ed003b9c4ab4aab27e8cbfddf80c5
SHA512

28cdd823a4b7986f8e70e48ce21e14b3760db0ea9809a2ca5fa96acd42e1c1100c991f3f384d79e1833d3141ea4bf79a7a51165eb0458a1e2b471e2f375a64c5
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
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	bba873f28487d3f7eb53b66f2c2894d6041ed003b9c4ab4aab27e8cbfddf80c5.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	bba873f28487d3f7eb53b66f2c2894d6041ed003b9c4ab4aab27e8cbfddf80c5.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	bba873f28487d3f7eb53b66f2c2894d6041ed003b9c4ab4aab27e8cbfddf80c5.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	bba873f28487d3f7eb53b66f2c2894d6041ed003b9c4ab4aab27e8cbfddf80c5.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"	bba873f28487d3f7eb53b66f2c2894d6041ed003b9c4ab4aab27e8cbfddf80c5.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	bba873f28487d3f7eb53b66f2c2894d6041ed003b9c4ab4aab27e8cbfddf80c5.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	bba873f28487d3f7eb53b66f2c2894d6041ed003b9c4ab4aab27e8cbfddf80c5.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
2488	bba873f28487d3f7eb53b66f2c2894d6041ed003b9c4ab4aab27e8cbfddf80c5.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2488	bba873f28487d3f7eb53b66f2c2894d6041ed003b9c4ab4aab27e8cbfddf80c5.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2488	bba873f28487d3f7eb53b66f2c2894d6041ed003b9c4ab4aab27e8cbfddf80c5.exe
2488	bba873f28487d3f7eb53b66f2c2894d6041ed003b9c4ab4aab27e8cbfddf80c5.exe

C:\Users\Admin\AppData\Local\Temp\bba873f28487d3f7eb53b66f2c2894d6041ed003b9c4ab4aab27e8cbfddf80c5.exe
"C:\Users\Admin\AppData\Local\Temp\bba873f28487d3f7eb53b66f2c2894d6041ed003b9c4ab4aab27e8cbfddf80c5.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:2488

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
6f4e4e114bd3d303db8b3fc75d95c240

SHA1
636367d64796e1958e740340265155bd806f94c1

SHA256
3230120f43cafb9b1aa2bf242b95b62d2a63b98e656756ad6059f5f5d2aea152

SHA512
5a8c773968537d60e66d087d44e1b9deffea75cacffe0b0bbcc9038a86e153f3a9194b70859bf8edde2fbbcd1bf4ffb47216da7ba6c9051baacd08ff6993eb8a

Download Submit
memory/2488-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2488-24-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2488-231-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads