vobfus | 9cdf45064260f57a3027a7750111da505ee8b00bc5356b6a715a081acfc637d4

General

Target

9cdf45064260f57a3027a7750111da505ee8b00bc5356b6a715a081acfc637d4.exe
Size

221KB
MD5

bd59d216e1dd8c362f828dafc8e4bcf6
SHA1

f33ee43d0424a86b78abbbf927f6e7376b0e98dd
SHA256

9cdf45064260f57a3027a7750111da505ee8b00bc5356b6a715a081acfc637d4
SHA512

16308ddfc531c333143c2bd99a1d4cef9ced917a05ccaa873353fd41efdb5be892af27c0051f412cd06b136ba31770486eea38cab16478cce04867ad2e46ce55

Score

10^/10

vobfus 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

T1060

Modify Registry

T1112

Processes:

9cdf45064260f57a3027a7750111da505ee8b00bc5356b6a715a081acfc637d4.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	9cdf45064260f57a3027a7750111da505ee8b00bc5356b6a715a081acfc637d4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	9cdf45064260f57a3027a7750111da505ee8b00bc5356b6a715a081acfc637d4.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	9cdf45064260f57a3027a7750111da505ee8b00bc5356b6a715a081acfc637d4.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	9cdf45064260f57a3027a7750111da505ee8b00bc5356b6a715a081acfc637d4.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

9cdf45064260f57a3027a7750111da505ee8b00bc5356b6a715a081acfc637d4.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	9cdf45064260f57a3027a7750111da505ee8b00bc5356b6a715a081acfc637d4.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	9cdf45064260f57a3027a7750111da505ee8b00bc5356b6a715a081acfc637d4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	9cdf45064260f57a3027a7750111da505ee8b00bc5356b6a715a081acfc637d4.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run	9cdf45064260f57a3027a7750111da505ee8b00bc5356b6a715a081acfc637d4.exe

Script User-Agent 2 IoCs

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

Processes:

description	flow	ioc
HTTP User-Agent header	16	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	24	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

9cdf45064260f57a3027a7750111da505ee8b00bc5356b6a715a081acfc637d4.exe

pid process

2116 9cdf45064260f57a3027a7750111da505ee8b00bc5356b6a715a081acfc637d4.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

9cdf45064260f57a3027a7750111da505ee8b00bc5356b6a715a081acfc637d4.exe

pid process

2116 9cdf45064260f57a3027a7750111da505ee8b00bc5356b6a715a081acfc637d4.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

9cdf45064260f57a3027a7750111da505ee8b00bc5356b6a715a081acfc637d4.exe

pid	process
2116	9cdf45064260f57a3027a7750111da505ee8b00bc5356b6a715a081acfc637d4.exe
2116	9cdf45064260f57a3027a7750111da505ee8b00bc5356b6a715a081acfc637d4.exe

C:\Users\Admin\AppData\Local\Temp\9cdf45064260f57a3027a7750111da505ee8b00bc5356b6a715a081acfc637d4.exe
"C:\Users\Admin\AppData\Local\Temp\9cdf45064260f57a3027a7750111da505ee8b00bc5356b6a715a081acfc637d4.exe"
1⤵
- Adds policy Run key to start application
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
PID:2116

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

2

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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