vobfus | 10ccfa017bb6621a055e59cbb6db08c1e3f5e0c47046c771d2b3ed9f54f71d49

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
06/01/2025, 08:29

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General

Target

JaffaCakes118_1930aad92e021a6a2442324167bc61f2.exe
Size

204KB
MD5

1930aad92e021a6a2442324167bc61f2
SHA1

b623ffead1317a363e3e3e318c4089705b6c3aa5
SHA256

10ccfa017bb6621a055e59cbb6db08c1e3f5e0c47046c771d2b3ed9f54f71d49
SHA512

cd8d03718b16870e3bd6697232f6acb99ccdb4bed0fbaf91db598173b97bc7b0d12fc0e1b097afa94b08e5bf6aa169e1160f187ccf1568e4cdf475f09c3aeff8
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
Vobfus family
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\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	JaffaCakes118_1930aad92e021a6a2442324167bc61f2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_1930aad92e021a6a2442324167bc61f2.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	JaffaCakes118_1930aad92e021a6a2442324167bc61f2.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_1930aad92e021a6a2442324167bc61f2.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"	JaffaCakes118_1930aad92e021a6a2442324167bc61f2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_1930aad92e021a6a2442324167bc61f2.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	JaffaCakes118_1930aad92e021a6a2442324167bc61f2.exe

Script User-Agent 2 IoCs

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

description	flow	ioc
HTTP User-Agent header	15	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	45	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
876	JaffaCakes118_1930aad92e021a6a2442324167bc61f2.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
876	JaffaCakes118_1930aad92e021a6a2442324167bc61f2.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
876	JaffaCakes118_1930aad92e021a6a2442324167bc61f2.exe
876	JaffaCakes118_1930aad92e021a6a2442324167bc61f2.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1930aad92e021a6a2442324167bc61f2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1930aad92e021a6a2442324167bc61f2.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:876

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
fe7479b642bb3292ba509f63d8a16278

SHA1
e68edee3006deffce16ed5cd326a2b156cca740c

SHA256
3396d6495a96c728f48707557cef813d964721ba3a71500e553c0455945aba5a

SHA512
14efecf06b7d6ead8ee6c8a44c2788c21d5faad059b58e99e2e611a3422c6f4bf7e9d5628adb525e973fa9ed704f6de72bab37be8cca650ef99c072e52bcd497

Download Submit
memory/876-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/876-31-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/876-238-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads