39636529f99caaf04caf4bec02f46d63c790df1eca13a6d45873d2738b7c1cc1

Analysis

max time kernel
142s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
22-09-2023 05:39

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

39636529f99caaf04caf4bec02f46d63c790df1eca13a6d45873d2738b7c1cc1.dll
Size

5.0MB
MD5

3eeaecbc2dd335185911689f69e30326
SHA1

5279b66a5750827752f0f81eb19fc1370e42f3f5
SHA256

39636529f99caaf04caf4bec02f46d63c790df1eca13a6d45873d2738b7c1cc1
SHA512

f56eccbf622ae29e0f85cf821b158751db6bc2b1889e10a6c34e86fbd242f4a238755a542919e9f786de8ea53ccd7fcbb68734f4d4187d25340e27b1b28fe62e
SSDEEP

98304:zIxsnO859Rrin70NuJX2td9J30aNMEwczdD:Pnr59tsoCid9OwnB

Score

8^/10

persistence

Malware Config

Signatures

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\OsyZDBKxKLCuy.sys\ImagePath = "\\??\\C:\\Windows\\SysWOW64\\rundOsyZDBKxKLCuy.sys"	rundll32.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundOsyZDBKxKLCuy.sys	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\rundOsyZDBKxKLCuy.sys	rundll32.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
656	Process not Found

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4624	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3300 wrote to memory of 4624	3300	rundll32.exe	84
PID 3300 wrote to memory of 4624	3300	rundll32.exe	84
PID 3300 wrote to memory of 4624	3300	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\39636529f99caaf04caf4bec02f46d63c790df1eca13a6d45873d2738b7c1cc1.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3300
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\39636529f99caaf04caf4bec02f46d63c790df1eca13a6d45873d2738b7c1cc1.dll,#1
  2⤵
  - Sets service image path in registry
  - Drops file in System32 directory
  - Suspicious use of SetWindowsHookEx
  PID:4624

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads