vobfus | af2e55d3d86fe50d98dc67fcf9ff17f5166a257b702cf42a2a4e27164e932fc2

Analysis

max time kernel
149s
max time network
142s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
31-12-2024 23:32

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General

Target

JaffaCakes118_3e8b95bbd510d1584b34fd5099b28bb6.exe
Size

200KB
MD5

3e8b95bbd510d1584b34fd5099b28bb6
SHA1

686cf362ef8003fc306aeac311bf66ce70217231
SHA256

af2e55d3d86fe50d98dc67fcf9ff17f5166a257b702cf42a2a4e27164e932fc2
SHA512

8efdaa445bdb93847da0e77f2b8b2f63fc9aecae81bfe4c60c745c4a32e5afa5b2a0819dbd4c9737de20337203f784ceb2515c787c6a7f61a6037d62a950b0d4
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_3e8b95bbd510d1584b34fd5099b28bb6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_3e8b95bbd510d1584b34fd5099b28bb6.exe
Key created	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	JaffaCakes118_3e8b95bbd510d1584b34fd5099b28bb6.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_3e8b95bbd510d1584b34fd5099b28bb6.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_3e8b95bbd510d1584b34fd5099b28bb6.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_3e8b95bbd510d1584b34fd5099b28bb6.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_3e8b95bbd510d1584b34fd5099b28bb6.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
2292	JaffaCakes118_3e8b95bbd510d1584b34fd5099b28bb6.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2292	JaffaCakes118_3e8b95bbd510d1584b34fd5099b28bb6.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2292	JaffaCakes118_3e8b95bbd510d1584b34fd5099b28bb6.exe
2292	JaffaCakes118_3e8b95bbd510d1584b34fd5099b28bb6.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3e8b95bbd510d1584b34fd5099b28bb6.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3e8b95bbd510d1584b34fd5099b28bb6.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:2292

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
80f9c454e8094be4a606630c9fd625f1

SHA1
6b4208ca36ba3ba36733415f419b9f2d8c0a992f

SHA256
e6fbf39a76a360c96cc73a86fc75117365c2d428af8c23caf046b41cfd6c434f

SHA512
e947aa3de2079a8768b28e87763fcb054a88e1f60c86bb187002022507907438b32b60e3b5d128899aa8ba2bced564278ef083bcf03f4cc3b7114fd0ffd4ad22

Download Submit
memory/2292-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2292-10-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2292-81-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2292-224-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads