vobfus | de541b7889d8c2dca83d44fa504247bbd553faad04ac357ff22c73d1d3a5b0db

General

Target

ade7ff4a6290971c5e6f5cc6cf4020f66db4c8f08ed6d44a36cba1d61bf352c4.exe
Size

5.7MB
MD5

132cb6ccbe20c89fc7216b7072bfb33f
SHA1

bce08640b253d85e8942bcb26a28681dc875ff20
SHA256

ade7ff4a6290971c5e6f5cc6cf4020f66db4c8f08ed6d44a36cba1d61bf352c4
SHA512

dbc3f555729f616c1a298780e7e6fc212e411737de1d74e72692efcea0a44a9c409d6112fee3659c065b6c77208ff37e5e52d1ee5ebf080d97cb4dd234f83496
SSDEEP

98304:VbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbF:P

Score

10^/10

vobfus discovery persistence upx 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\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	ade7ff4a6290971c5e6f5cc6cf4020f66db4c8f08ed6d44a36cba1d61bf352c4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	ade7ff4a6290971c5e6f5cc6cf4020f66db4c8f08ed6d44a36cba1d61bf352c4.exe
Key created	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	ade7ff4a6290971c5e6f5cc6cf4020f66db4c8f08ed6d44a36cba1d61bf352c4.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	ade7ff4a6290971c5e6f5cc6cf4020f66db4c8f08ed6d44a36cba1d61bf352c4.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/5068-0-0x0000000000400000-0x0000000000437000-memory.dmp	upx
behavioral2/files/0x000a00000002343d-7.dat	upx
behavioral2/memory/5068-10-0x0000000000400000-0x0000000000437000-memory.dmp	upx
behavioral2/memory/5068-74-0x0000000000400000-0x0000000000437000-memory.dmp	upx
behavioral2/memory/5068-288-0x0000000000400000-0x0000000000437000-memory.dmp	upx

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"	ade7ff4a6290971c5e6f5cc6cf4020f66db4c8f08ed6d44a36cba1d61bf352c4.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	ade7ff4a6290971c5e6f5cc6cf4020f66db4c8f08ed6d44a36cba1d61bf352c4.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	ade7ff4a6290971c5e6f5cc6cf4020f66db4c8f08ed6d44a36cba1d61bf352c4.exe

Script User-Agent 2 IoCs

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

description	flow	ioc
HTTP User-Agent header	22	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	60	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
5068	ade7ff4a6290971c5e6f5cc6cf4020f66db4c8f08ed6d44a36cba1d61bf352c4.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
5068	ade7ff4a6290971c5e6f5cc6cf4020f66db4c8f08ed6d44a36cba1d61bf352c4.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5068	ade7ff4a6290971c5e6f5cc6cf4020f66db4c8f08ed6d44a36cba1d61bf352c4.exe
5068	ade7ff4a6290971c5e6f5cc6cf4020f66db4c8f08ed6d44a36cba1d61bf352c4.exe

C:\Users\Admin\AppData\Local\Temp\ade7ff4a6290971c5e6f5cc6cf4020f66db4c8f08ed6d44a36cba1d61bf352c4.exe
"C:\Users\Admin\AppData\Local\Temp\ade7ff4a6290971c5e6f5cc6cf4020f66db4c8f08ed6d44a36cba1d61bf352c4.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:5068

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
5.7MB

MD5
33d8e7ac04758db1ecf99edb7f0fcc54

SHA1
34015290de373792b997a6ff2f90362d4e4dd1a9

SHA256
8df56bd4bdc3326c4fefdf0fde62c2cbed8b08d184877df09a369423cdf27792

SHA512
93b2dc8a7517f707ed157795ae1ba4df7fec6340ffa9dbc648965307375a82242bc87982e7581dec54d2732b2faff8476b9d09e5f10392dc7eee52446c2a4223

Download Submit
memory/5068-0-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/5068-10-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/5068-74-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/5068-288-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads