vobfus | 989cc6eb3a90d93d47cbdc78230e80508cd821f22d81ddc67765bdbad1d55713

Analysis

max time kernel
149s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
31-08-2024 15:49

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General

Target

1abf342c788256fea89a96426efba2979f5bba081ed706c95facbdbcb5209f14.exe
Size

204KB
MD5

012cb17c3aa46fade44e80c2cb831e7e
SHA1

276e04e8442fd537dcde45ae80ba9c9dfd41957b
SHA256

1abf342c788256fea89a96426efba2979f5bba081ed706c95facbdbcb5209f14
SHA512

86529eefb5a3de6e6036c347acfedfffa447903e4a0ec449fcf5ab3210c105320999d1ebbefa81431f43dccf99f020fd8d61026384299b5c2758553c40d30b84
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	1abf342c788256fea89a96426efba2979f5bba081ed706c95facbdbcb5209f14.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	1abf342c788256fea89a96426efba2979f5bba081ed706c95facbdbcb5209f14.exe
Key created	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	1abf342c788256fea89a96426efba2979f5bba081ed706c95facbdbcb5209f14.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	1abf342c788256fea89a96426efba2979f5bba081ed706c95facbdbcb5209f14.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"	1abf342c788256fea89a96426efba2979f5bba081ed706c95facbdbcb5209f14.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	1abf342c788256fea89a96426efba2979f5bba081ed706c95facbdbcb5209f14.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	1abf342c788256fea89a96426efba2979f5bba081ed706c95facbdbcb5209f14.exe

Script User-Agent 2 IoCs

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

description	flow	ioc
HTTP User-Agent header	65	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	21	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2032	1abf342c788256fea89a96426efba2979f5bba081ed706c95facbdbcb5209f14.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2032	1abf342c788256fea89a96426efba2979f5bba081ed706c95facbdbcb5209f14.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2032	1abf342c788256fea89a96426efba2979f5bba081ed706c95facbdbcb5209f14.exe
2032	1abf342c788256fea89a96426efba2979f5bba081ed706c95facbdbcb5209f14.exe

C:\Users\Admin\AppData\Local\Temp\1abf342c788256fea89a96426efba2979f5bba081ed706c95facbdbcb5209f14.exe
"C:\Users\Admin\AppData\Local\Temp\1abf342c788256fea89a96426efba2979f5bba081ed706c95facbdbcb5209f14.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:2032

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
136a9a664dec7656faa21550a00fab78

SHA1
10dbbf140af4023ebc82c0eefb7150c490e50453

SHA256
17fb855c9222be837022e7cb81a5f07836e98868688042da05b3f5091908d3be

SHA512
406d7840754b03f24195f10161caf22f4f0fbe9d9f80e4be01b83eb5eebb5f40183e8bf618a999264b7a5711b98d05bb25fce58201400e45b1d4a8c59673e681

Download Submit
memory/2032-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2032-24-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2032-231-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads