vobfus | de541b7889d8c2dca83d44fa504247bbd553faad04ac357ff22c73d1d3a5b0db

General

Target

ade7ff4a6290971c5e6f5cc6cf4020f66db4c8f08ed6d44a36cba1d61bf352c4.exe
Size

5.7MB
MD5

132cb6ccbe20c89fc7216b7072bfb33f
SHA1

bce08640b253d85e8942bcb26a28681dc875ff20
SHA256

ade7ff4a6290971c5e6f5cc6cf4020f66db4c8f08ed6d44a36cba1d61bf352c4
SHA512

dbc3f555729f616c1a298780e7e6fc212e411737de1d74e72692efcea0a44a9c409d6112fee3659c065b6c77208ff37e5e52d1ee5ebf080d97cb4dd234f83496
SSDEEP

98304:VbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbF:P

Score

10^/10

vobfus discovery persistence upx 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	ade7ff4a6290971c5e6f5cc6cf4020f66db4c8f08ed6d44a36cba1d61bf352c4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	ade7ff4a6290971c5e6f5cc6cf4020f66db4c8f08ed6d44a36cba1d61bf352c4.exe
Key created	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	ade7ff4a6290971c5e6f5cc6cf4020f66db4c8f08ed6d44a36cba1d61bf352c4.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	ade7ff4a6290971c5e6f5cc6cf4020f66db4c8f08ed6d44a36cba1d61bf352c4.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4204-0-0x0000000000400000-0x0000000000437000-memory.dmp	upx
behavioral2/files/0x000800000002340f-7.dat	upx
behavioral2/memory/4204-17-0x0000000000400000-0x0000000000437000-memory.dmp	upx
behavioral2/memory/4204-18-0x0000000000400000-0x0000000000437000-memory.dmp	upx
behavioral2/memory/4204-232-0x0000000000400000-0x0000000000437000-memory.dmp	upx

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\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	ade7ff4a6290971c5e6f5cc6cf4020f66db4c8f08ed6d44a36cba1d61bf352c4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	ade7ff4a6290971c5e6f5cc6cf4020f66db4c8f08ed6d44a36cba1d61bf352c4.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	ade7ff4a6290971c5e6f5cc6cf4020f66db4c8f08ed6d44a36cba1d61bf352c4.exe

Script User-Agent 2 IoCs

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

description	flow	ioc
HTTP User-Agent header	23	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	66	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4204	ade7ff4a6290971c5e6f5cc6cf4020f66db4c8f08ed6d44a36cba1d61bf352c4.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4204	ade7ff4a6290971c5e6f5cc6cf4020f66db4c8f08ed6d44a36cba1d61bf352c4.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4204	ade7ff4a6290971c5e6f5cc6cf4020f66db4c8f08ed6d44a36cba1d61bf352c4.exe
4204	ade7ff4a6290971c5e6f5cc6cf4020f66db4c8f08ed6d44a36cba1d61bf352c4.exe

C:\Users\Admin\AppData\Local\Temp\ade7ff4a6290971c5e6f5cc6cf4020f66db4c8f08ed6d44a36cba1d61bf352c4.exe
"C:\Users\Admin\AppData\Local\Temp\ade7ff4a6290971c5e6f5cc6cf4020f66db4c8f08ed6d44a36cba1d61bf352c4.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:4204

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
5.7MB

MD5
4e2973c97ff5b61cf74e8a25cdcefb7e

SHA1
1c927ceda6e8d894fc5e62ee60e447823d2a80ea

SHA256
2d38b2d97370c64798abd298b6804af0604a7f13f1ee844a0d520d459152ae9a

SHA512
d086628fc835f902aa5d32a9d6d3cc21b968f465d9b1f627a928ec87c5b8eea4fd75d8120edcb3cc7e969c9222efb2a8a6d19709be2fdabf661c385d9994fe91

Download Submit
memory/4204-0-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/4204-17-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/4204-18-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/4204-232-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads