vobfus | 2a79425e2eb1ce77d9769572b37fe291d71b334ec5bce6feb697740980c0c25c

Analysis

max time kernel
149s
max time network
145s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06/01/2025, 07:03

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General

Target

JaffaCakes118_15299695bf6c296ceef921b34154f148.exe
Size

204KB
MD5

15299695bf6c296ceef921b34154f148
SHA1

8a569f95211477d00e84452f75e5110284f86b48
SHA256

2a79425e2eb1ce77d9769572b37fe291d71b334ec5bce6feb697740980c0c25c
SHA512

393fbe577185c3b14990c7f117376234e3167fa417f8cec9dda97340514aa1350c664fbc3001fec296fc87750e303fff8b215c486c9a3415106313a8f5458005
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-1-5-21-1846800975-3917212583-2893086201-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	JaffaCakes118_15299695bf6c296ceef921b34154f148.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_15299695bf6c296ceef921b34154f148.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	JaffaCakes118_15299695bf6c296ceef921b34154f148.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_15299695bf6c296ceef921b34154f148.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_15299695bf6c296ceef921b34154f148.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_15299695bf6c296ceef921b34154f148.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_15299695bf6c296ceef921b34154f148.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
2908	JaffaCakes118_15299695bf6c296ceef921b34154f148.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2908	JaffaCakes118_15299695bf6c296ceef921b34154f148.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2908	JaffaCakes118_15299695bf6c296ceef921b34154f148.exe
2908	JaffaCakes118_15299695bf6c296ceef921b34154f148.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_15299695bf6c296ceef921b34154f148.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_15299695bf6c296ceef921b34154f148.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:2908

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
161e4772fbb645d2cec2a6c28dcdffc4

SHA1
e6ee421dddea4c601cdfd961312f06f7a76003f2

SHA256
a4441be93620453a6dd6a28d9e374bf58977a0357cee051410dab78bc338e65b

SHA512
5bf1cd8432a5f7f56c13b293baad791d3fe206ddd5d2f1cfc33d0d01a824e10a8633dca5f22f0ef56d385666213812e73874076628b291c609f42e14192284b2

Download Submit
memory/2908-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2908-10-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2908-67-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2908-281-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads