vobfus | 6d8e25f525323dc38eb567690e61d57d3213c484f27b37b2182338f77fe5bfea

General

Target

9dfddc53804b8d14662802a06eb9fc90497d807022544962805efa4367a1ebb3.exe
Size

200KB
MD5

cecc831c80b338264785bc4ef0ee95d7
SHA1

3e8fa0b4a0de1343bc3c354545fa4066a6a10614
SHA256

9dfddc53804b8d14662802a06eb9fc90497d807022544962805efa4367a1ebb3
SHA512

edc11f5b1f71d2ef05caba4cf733cf0046f8126a057ed0f25513383a26c35f3ea537d30a50201099ff383d5a369b7a3e942ef674ebda034f3ca329edec976ed5
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

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-1-5-21-3434294380-2554721341-1919518612-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	9dfddc53804b8d14662802a06eb9fc90497d807022544962805efa4367a1ebb3.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	9dfddc53804b8d14662802a06eb9fc90497d807022544962805efa4367a1ebb3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	9dfddc53804b8d14662802a06eb9fc90497d807022544962805efa4367a1ebb3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	9dfddc53804b8d14662802a06eb9fc90497d807022544962805efa4367a1ebb3.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"	9dfddc53804b8d14662802a06eb9fc90497d807022544962805efa4367a1ebb3.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	9dfddc53804b8d14662802a06eb9fc90497d807022544962805efa4367a1ebb3.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	9dfddc53804b8d14662802a06eb9fc90497d807022544962805efa4367a1ebb3.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
2276	9dfddc53804b8d14662802a06eb9fc90497d807022544962805efa4367a1ebb3.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2276	9dfddc53804b8d14662802a06eb9fc90497d807022544962805efa4367a1ebb3.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2276	9dfddc53804b8d14662802a06eb9fc90497d807022544962805efa4367a1ebb3.exe
2276	9dfddc53804b8d14662802a06eb9fc90497d807022544962805efa4367a1ebb3.exe

C:\Users\Admin\AppData\Local\Temp\9dfddc53804b8d14662802a06eb9fc90497d807022544962805efa4367a1ebb3.exe
"C:\Users\Admin\AppData\Local\Temp\9dfddc53804b8d14662802a06eb9fc90497d807022544962805efa4367a1ebb3.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:2276

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

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
40441b181a0e03b1bd6a7ef37db4d292

SHA1
77ca84743c8f7d934f870e10cc35f5bd1234b361

SHA256
a7a1924e131559761f5b2192f835b843aabd8e103e88857df74d507a00b05b2a

SHA512
16691328ac419ca687ab03ee711faee4ae64f819fc6e3a96217b29b7a941b0f8a8e83e32eaa3122c44bd722a702d1d5d4f0228224e814d3f3cf442d7560aa483

Download Submit
memory/2276-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2276-10-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2276-46-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2276-260-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads