vobfus | c88bbe9f66baa07aae1c2868e9e3b9ae3052b95ff246074030f9148c72df0fa7

General

Target

c88bbe9f66baa07aae1c2868e9e3b9ae3052b95ff246074030f9148c72df0fa7.exe
Size

204KB
MD5

156a9a84ab1b3bffb4ec916a2c154696
SHA1

37762b30c2c3051e549903551dc0bd020ec89d4f
SHA256

c88bbe9f66baa07aae1c2868e9e3b9ae3052b95ff246074030f9148c72df0fa7
SHA512

43aa5b277e02558efdf7fb1acf8633bb06de02978dc926512148836d7f20d3621bca1252efef0e9d0f0efb729aa3c44e33477d59838f8dcfacd7cbe9f7bef723
SSDEEP

3072:3Hjk+0oLnWFnzBHv/xWFsg8WatFBGFVWPE5ac0pG/1z+QVMbg1a:Xo/BHng5HaVG4G/1z+QVMbg1a

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
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"	c88bbe9f66baa07aae1c2868e9e3b9ae3052b95ff246074030f9148c72df0fa7.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	c88bbe9f66baa07aae1c2868e9e3b9ae3052b95ff246074030f9148c72df0fa7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	c88bbe9f66baa07aae1c2868e9e3b9ae3052b95ff246074030f9148c72df0fa7.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	c88bbe9f66baa07aae1c2868e9e3b9ae3052b95ff246074030f9148c72df0fa7.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"	c88bbe9f66baa07aae1c2868e9e3b9ae3052b95ff246074030f9148c72df0fa7.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"	c88bbe9f66baa07aae1c2868e9e3b9ae3052b95ff246074030f9148c72df0fa7.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	c88bbe9f66baa07aae1c2868e9e3b9ae3052b95ff246074030f9148c72df0fa7.exe

Script User-Agent 1 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)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2380	c88bbe9f66baa07aae1c2868e9e3b9ae3052b95ff246074030f9148c72df0fa7.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2380	c88bbe9f66baa07aae1c2868e9e3b9ae3052b95ff246074030f9148c72df0fa7.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2380	c88bbe9f66baa07aae1c2868e9e3b9ae3052b95ff246074030f9148c72df0fa7.exe
2380	c88bbe9f66baa07aae1c2868e9e3b9ae3052b95ff246074030f9148c72df0fa7.exe

C:\Users\Admin\AppData\Local\Temp\c88bbe9f66baa07aae1c2868e9e3b9ae3052b95ff246074030f9148c72df0fa7.exe
"C:\Users\Admin\AppData\Local\Temp\c88bbe9f66baa07aae1c2868e9e3b9ae3052b95ff246074030f9148c72df0fa7.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:2380

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

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Downloads

C:\Users\Admin\AppData\Roaming\AG58FPQON.exe

Filesize
204KB

MD5
3075c4d5409061f78a5b6352850eea80

SHA1
eec797cfede9017021bab525179e86736e4941d5

SHA256
59ff7607bc880615f03084689c9d610fcc1f1a388297f12ada219058537bf1c5

SHA512
6bd3f1a4f882d0d291e038e8e5f5a1efe786a105f94b1062d0b406f14ac1596844ee14eece581bf1bbcbfd0b35e8ecc406051766a601bb0571523dd9e5473501

Download Submit
memory/2380-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2380-10-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2380-74-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2380-288-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads