vobfus | dba4c1ef7ffd8e9d819faec504117c36f8a47b63fd5c9afa3bad73c21b5cada8

General

Target

294b0494baf481b0ca707436f22e26ec26902fdb12b3cb91e31dc2ea52e26720.exe
Size

204KB
MD5

b74bd0eaf068f5f5a0e9b6d47fb10bc8
SHA1

7dc822ac335921591f28cd0fe9d557e92326ddf2
SHA256

294b0494baf481b0ca707436f22e26ec26902fdb12b3cb91e31dc2ea52e26720
SHA512

7d6eb7ec57d2964924c90284a8f438cd0e5c599c5063f0459a2c32b43d6f50826e0b253a2d7db9476ee9ef797d3081ccac2485a305dad1e257a670aaa9d133a7
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	294b0494baf481b0ca707436f22e26ec26902fdb12b3cb91e31dc2ea52e26720.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	294b0494baf481b0ca707436f22e26ec26902fdb12b3cb91e31dc2ea52e26720.exe
Key created	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	294b0494baf481b0ca707436f22e26ec26902fdb12b3cb91e31dc2ea52e26720.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	294b0494baf481b0ca707436f22e26ec26902fdb12b3cb91e31dc2ea52e26720.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"	294b0494baf481b0ca707436f22e26ec26902fdb12b3cb91e31dc2ea52e26720.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000\Software\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	294b0494baf481b0ca707436f22e26ec26902fdb12b3cb91e31dc2ea52e26720.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	294b0494baf481b0ca707436f22e26ec26902fdb12b3cb91e31dc2ea52e26720.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
2716	294b0494baf481b0ca707436f22e26ec26902fdb12b3cb91e31dc2ea52e26720.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2716	294b0494baf481b0ca707436f22e26ec26902fdb12b3cb91e31dc2ea52e26720.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2716	294b0494baf481b0ca707436f22e26ec26902fdb12b3cb91e31dc2ea52e26720.exe
2716	294b0494baf481b0ca707436f22e26ec26902fdb12b3cb91e31dc2ea52e26720.exe

C:\Users\Admin\AppData\Local\Temp\294b0494baf481b0ca707436f22e26ec26902fdb12b3cb91e31dc2ea52e26720.exe
"C:\Users\Admin\AppData\Local\Temp\294b0494baf481b0ca707436f22e26ec26902fdb12b3cb91e31dc2ea52e26720.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:2716

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
a18c59b1059cccfac61c857fc3e7b320

SHA1
887635370ef4346cdb38b51b26ec98f5f55c8aa8

SHA256
d8167674c180dcf6cd8a42aa1212ab7a6337f0c24e38b7c5c5b029622d598374

SHA512
a50e8f0fec0027b90edd70835302e6a854b75a234830880bc3d5e25e8b237d138cc2aa8590a60df73f517d205d939ce17ce276b5653d37986461f0628b6a169c

Download Submit
memory/2716-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2716-10-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2716-81-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2716-224-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads