vobfus | 3aae6e0384895349e46eaa61444c701c8c052af823b2fab5a11bb96fcf6362fa

Analysis

max time kernel
149s
max time network
144s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
31-08-2024 08:13

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General

Target

16cc455f3264931ad4ed9dba96987580d6dc69fbf132557492e4ccee0127cc52.exe
Size

204KB
MD5

b3ebc5a8d4006c203f6fd68762071a4d
SHA1

f2f96fcf195bc828a38ceb1b6e51c820ef1103ff
SHA256

16cc455f3264931ad4ed9dba96987580d6dc69fbf132557492e4ccee0127cc52
SHA512

8690a259bd4ecd21c76850ac43db47e86056cff2c4dc4d008c2c12caecf5ae17a303236e44b4ba56add1a8da039d8cb0cfad12ed2653b3893e8e0fb0749fbfd2
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	16cc455f3264931ad4ed9dba96987580d6dc69fbf132557492e4ccee0127cc52.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	16cc455f3264931ad4ed9dba96987580d6dc69fbf132557492e4ccee0127cc52.exe
Key created	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	16cc455f3264931ad4ed9dba96987580d6dc69fbf132557492e4ccee0127cc52.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	16cc455f3264931ad4ed9dba96987580d6dc69fbf132557492e4ccee0127cc52.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"	16cc455f3264931ad4ed9dba96987580d6dc69fbf132557492e4ccee0127cc52.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2172136094-3310281978-782691160-1000\Software\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	16cc455f3264931ad4ed9dba96987580d6dc69fbf132557492e4ccee0127cc52.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	16cc455f3264931ad4ed9dba96987580d6dc69fbf132557492e4ccee0127cc52.exe

Script User-Agent 2 IoCs

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

description	flow	ioc
HTTP User-Agent header	4	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	3	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2308	16cc455f3264931ad4ed9dba96987580d6dc69fbf132557492e4ccee0127cc52.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2308	16cc455f3264931ad4ed9dba96987580d6dc69fbf132557492e4ccee0127cc52.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2308	16cc455f3264931ad4ed9dba96987580d6dc69fbf132557492e4ccee0127cc52.exe
2308	16cc455f3264931ad4ed9dba96987580d6dc69fbf132557492e4ccee0127cc52.exe

C:\Users\Admin\AppData\Local\Temp\16cc455f3264931ad4ed9dba96987580d6dc69fbf132557492e4ccee0127cc52.exe
"C:\Users\Admin\AppData\Local\Temp\16cc455f3264931ad4ed9dba96987580d6dc69fbf132557492e4ccee0127cc52.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:2308

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
c45bdffc14430cd9bf98bc125a294174

SHA1
5473ca6b19f0229b3662b533cb45ed96fd10a170

SHA256
602a964087d29b3243919b0d14bf67c93d8afdf14b07de8c15ede3288480586a

SHA512
57d801e6a65f7135a9f10bdde34e1fe3e4ef518256fb1260659c15d4e0bde710c31d65e8adb26b5e47be4be834c681f015fb65ddc8139602093da324382b3529

Download Submit
memory/2308-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2308-24-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2308-238-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads