vobfus | a1d8571eed33e3a4390fde4c63f63162d266ae73d4fae0ee99b57d2e5f09927d

General

Target

a1d8571eed33e3a4390fde4c63f63162d266ae73d4fae0ee99b57d2e5f09927d.exe
Size

571KB
MD5

c994ccc21209b0495c74d5db187b2244
SHA1

66c9aaaef690c829eed7b0780ead3ac3c0759b19
SHA256

a1d8571eed33e3a4390fde4c63f63162d266ae73d4fae0ee99b57d2e5f09927d
SHA512

fa112f5acadcd2688d7aae20935b5bd1f08adfb9c778d996b7b5e128a91fad8c9af1e97206d1ea2c36a4ed7cb98a8eeb64c9183a5161ed5da3925ba573876cf5

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:

a1d8571eed33e3a4390fde4c63f63162d266ae73d4fae0ee99b57d2e5f09927d.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	a1d8571eed33e3a4390fde4c63f63162d266ae73d4fae0ee99b57d2e5f09927d.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	a1d8571eed33e3a4390fde4c63f63162d266ae73d4fae0ee99b57d2e5f09927d.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	a1d8571eed33e3a4390fde4c63f63162d266ae73d4fae0ee99b57d2e5f09927d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	a1d8571eed33e3a4390fde4c63f63162d266ae73d4fae0ee99b57d2e5f09927d.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

a1d8571eed33e3a4390fde4c63f63162d266ae73d4fae0ee99b57d2e5f09927d.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	a1d8571eed33e3a4390fde4c63f63162d266ae73d4fae0ee99b57d2e5f09927d.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	a1d8571eed33e3a4390fde4c63f63162d266ae73d4fae0ee99b57d2e5f09927d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	a1d8571eed33e3a4390fde4c63f63162d266ae73d4fae0ee99b57d2e5f09927d.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run	a1d8571eed33e3a4390fde4c63f63162d266ae73d4fae0ee99b57d2e5f09927d.exe

Script User-Agent 2 IoCs

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

Processes:

description	flow	ioc
HTTP User-Agent header	6	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	5	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

a1d8571eed33e3a4390fde4c63f63162d266ae73d4fae0ee99b57d2e5f09927d.exe

pid process

2036 a1d8571eed33e3a4390fde4c63f63162d266ae73d4fae0ee99b57d2e5f09927d.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

a1d8571eed33e3a4390fde4c63f63162d266ae73d4fae0ee99b57d2e5f09927d.exe

pid process

2036 a1d8571eed33e3a4390fde4c63f63162d266ae73d4fae0ee99b57d2e5f09927d.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

a1d8571eed33e3a4390fde4c63f63162d266ae73d4fae0ee99b57d2e5f09927d.exe

pid	process
2036	a1d8571eed33e3a4390fde4c63f63162d266ae73d4fae0ee99b57d2e5f09927d.exe
2036	a1d8571eed33e3a4390fde4c63f63162d266ae73d4fae0ee99b57d2e5f09927d.exe

C:\Users\Admin\AppData\Local\Temp\a1d8571eed33e3a4390fde4c63f63162d266ae73d4fae0ee99b57d2e5f09927d.exe
"C:\Users\Admin\AppData\Local\Temp\a1d8571eed33e3a4390fde4c63f63162d266ae73d4fae0ee99b57d2e5f09927d.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:2036

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

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Downloads

memory/2036-59-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads