vobfus | e4c83122e5feea8a7b23ff03888b71aaa449d4ee8565ab75aa7625f415056403

General

Target
VirusShare_58695175d4455ce99ab1029c255b7d08.exe
Size 212KB
Sample251103-ppntjsfp91
SHA256 473a70eca76ea775144352e5c044dcdad6c03c77987196004d29df024eeb9d3d
MD5 58695175d4455ce99ab1029c255b7d08
SHA1 5cb9db9a19178529b86abfeafc59b5125521d8a7
SHA512 93604cfba77756dd88835640fdf707400e11991ec1c87d628e7a3503f5d50d61cfa4b23d90986b63bc57c7e1012fc4fe122ae7768f7f9d6f96a9d45cebe1b86b
SSDEEP 3072:3Hjk+0oLnWFnzBHv/xWFsg8WatFBGFVWPE5ac0pG/1z+QVMbg1:Xo/BHng5HaVG4G/1z+QVMbg1
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

discovery vobfus 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 8 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2318277690-2490144949-3346562762-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	VirusShare_58695175d4455ce99ab1029c255b7d08.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2318277690-2490144949-3346562762-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	AG58FPQON.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	VirusShare_58695175d4455ce99ab1029c255b7d08.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2318277690-2490144949-3346562762-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	VirusShare_58695175d4455ce99ab1029c255b7d08.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	AG58FPQON.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	AG58FPQON.exe
Key created	\REGISTRY\USER\S-1-5-21-2318277690-2490144949-3346562762-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	AG58FPQON.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	VirusShare_58695175d4455ce99ab1029c255b7d08.exe

Executes dropped EXE 1 IoCs

pid	Process
5072	AG58FPQON.exe

Adds 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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	VirusShare_58695175d4455ce99ab1029c255b7d08.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2318277690-2490144949-3346562762-1000\Software\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	VirusShare_58695175d4455ce99ab1029c255b7d08.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	AG58FPQON.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2318277690-2490144949-3346562762-1000\Software\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	AG58FPQON.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	VirusShare_58695175d4455ce99ab1029c255b7d08.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AG58FPQON.exe

Script User-Agent 2 IoCs

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

description	flow	ioc
HTTP User-Agent header	10	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	25	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
5072	AG58FPQON.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
5688	VirusShare_58695175d4455ce99ab1029c255b7d08.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
5688	VirusShare_58695175d4455ce99ab1029c255b7d08.exe
5072	AG58FPQON.exe
5072	AG58FPQON.exe

C:\Users\Admin\AppData\Local\Temp\VirusShare_58695175d4455ce99ab1029c255b7d08.exe
"C:\Users\Admin\AppData\Local\Temp\VirusShare_58695175d4455ce99ab1029c255b7d08.exe"
1⤵
- Adds policy Run key to start application
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
PID:5688

C:\Users\Admin\AppData\Roaming\AG58FPQON.exe
C:\Users\Admin\AppData\Roaming\AG58FPQON.exe
1⤵
- Adds policy Run key to start application
- Executes dropped EXE
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:5072

Network

MITRE ATT&CK Enterprise v16

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

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Downloads

AG58FPQON.exe

Path C:\Users\Admin\AppData\Roaming\AG58FPQON.exe
Size 212KB
SHA256 427c4a177adc5d4d47f473349f2e65bf3004e4dd3f5dee1d62435cee56c4fa49
MD5 1dd274873da1edbe5281bdce50e612b7
SHA1 ab7138a247500027f403d9ea3cac1a5b986dfda9
SHA512 48bb9dfbcdfa147b7400b67a263595e86edac5b443541be6ce9888032d5e63f2b39d3d08c2639d7e99056dc126934787e4cf8519e7a5d8f141282e07f27e5150
SSDEEP 3072:3Hjk+0oLnWFnzBHv/xWFsg8WatFBGFVWPE5ac0pG/1z+QVMbg1E:Xo/BHng5HaVG4G/1z+QVMbg1E
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/5688-0-0x0000000000400000-0x0000000000434000-memory.dmp

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memory/5688-15-0x0000000000400000-0x0000000000434000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads