vobfus | 43ff037737ffba75364ef3f6228296d256f4e607487b16dfa5af4a57212ea5b0

Analysis

max time kernel
149s
max time network
145s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
31-12-2024 13:16

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General

Target

JaffaCakes118_1de2da7e81fad7cf542b5ac3e295da07.exe
Size

200KB
MD5

1de2da7e81fad7cf542b5ac3e295da07
SHA1

2b6ac129f55c7a715bea221a44f484392f5124b1
SHA256

43ff037737ffba75364ef3f6228296d256f4e607487b16dfa5af4a57212ea5b0
SHA512

6a12e7ae28ba67bd52d3f8870d1412e526240fb90115f71af8cc3b2b8015bc542b50c23f13570af4ed515a656870ce4d43b4a042edb27575a98cef72b10f2397
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\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	JaffaCakes118_1de2da7e81fad7cf542b5ac3e295da07.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_1de2da7e81fad7cf542b5ac3e295da07.exe
Key created	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	JaffaCakes118_1de2da7e81fad7cf542b5ac3e295da07.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_1de2da7e81fad7cf542b5ac3e295da07.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\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_1de2da7e81fad7cf542b5ac3e295da07.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_1de2da7e81fad7cf542b5ac3e295da07.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_1de2da7e81fad7cf542b5ac3e295da07.exe

Script User-Agent 2 IoCs

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

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

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2128	JaffaCakes118_1de2da7e81fad7cf542b5ac3e295da07.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2128	JaffaCakes118_1de2da7e81fad7cf542b5ac3e295da07.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2128	JaffaCakes118_1de2da7e81fad7cf542b5ac3e295da07.exe
2128	JaffaCakes118_1de2da7e81fad7cf542b5ac3e295da07.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1de2da7e81fad7cf542b5ac3e295da07.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1de2da7e81fad7cf542b5ac3e295da07.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:2128

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
200KB

MD5
44eea9e7e9af3cf8c1da7a6a44f231b9

SHA1
5714806a89f47ef9067cbae739ca284785db9c3d

SHA256
599e94c08d6963a07f748539b1a5132543bf0858fe01752167d62ceb4e0c0296

SHA512
c3f645e791990d94467e13b42f7b0e18f1a392bb1953ee6a9767185a010da3c3c157ecd96057bbdfab4ee5f670556ba35da81a0a649874623b3cf00f0e40a8a3

Download Submit
memory/2128-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2128-10-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2128-74-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2128-288-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads