8836b7284c080af5a5ba4e5ac5ec8eba5ddb6e6e018caada15ee573026cd4817

Analysis

max time kernel
122s
max time network
137s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
10-01-2024 19:32

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General

Target

5159f0a365349fcca5f0e60b88bd60ca.dll
Size

46KB
MD5

5159f0a365349fcca5f0e60b88bd60ca
SHA1

16a9b675b40cc10b697b30b4b6deea9b328c8e02
SHA256

8836b7284c080af5a5ba4e5ac5ec8eba5ddb6e6e018caada15ee573026cd4817
SHA512

3048595d9d064f749ca0c598bd0c4b9be34b07e99083f9be143471018ac9bff59c92f18a1dc0c7e5244ff6a6cfa28f84a66e3bd114b8dfa6f52b82a51fd48cc4
SSDEEP

768:APIBLqugML0Frtv+emYOI4jQPmVPAuKLtsQe5e83CwXeuObc8IDb/IcSKCnNis1g:AwBiMM0bYWUPmV18sV5xvXebo3DzSB1g

Score

10^/10

persistence

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 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\ShellServiceObjectDelayLoad\lexmf = "{9cf258be-9cf2-d036-d036-9cf258be147a}"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad	rundll32.exe

Drops file in System32 directory 2 IoCs

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

Modifies registry class 5 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9cf258be-9cf2-d036-d036-9cf258be147a}\InprocServer32\ThreadingModel = "Apartment"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9cf258be-9cf2-d036-d036-9cf258be147a}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9cf258be-9cf2-d036-d036-9cf258be147a}\	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9cf258be-9cf2-d036-d036-9cf258be147a}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{9cf258be-9cf2-d036-d036-9cf258be147a}\InprocServer32\ = "C:\\Windows\\SysWow64\\dwpib.zoh"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1992	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1992	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1924 wrote to memory of 1992	1924	rundll32.exe	21
PID 1924 wrote to memory of 1992	1924	rundll32.exe	21
PID 1924 wrote to memory of 1992	1924	rundll32.exe	21
PID 1924 wrote to memory of 1992	1924	rundll32.exe	21
PID 1924 wrote to memory of 1992	1924	rundll32.exe	21
PID 1924 wrote to memory of 1992	1924	rundll32.exe	21
PID 1924 wrote to memory of 1992	1924	rundll32.exe	21

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5159f0a365349fcca5f0e60b88bd60ca.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1924
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\5159f0a365349fcca5f0e60b88bd60ca.dll,#1
  2⤵
  - Adds autorun key to be loaded by Explorer.exe on startup
  - Drops file in System32 directory
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:1992

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

Replay Monitor

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Downloads

memory/1992-1-0x0000000000220000-0x0000000000255000-memory.dmp

Filesize
212KB

Download
memory/1992-2-0x0000000000110000-0x0000000000145000-memory.dmp

Filesize
212KB

Download
memory/1992-0-0x0000000000110000-0x0000000000145000-memory.dmp

Filesize
212KB

Download
memory/1992-4-0x0000000000220000-0x0000000000255000-memory.dmp

Filesize
212KB

Download
memory/1992-3-0x0000000000110000-0x0000000000145000-memory.dmp

Filesize
212KB

Download
memory/1992-8-0x0000000000110000-0x0000000000145000-memory.dmp

Filesize
212KB

Download
memory/1992-9-0x0000000000110000-0x0000000000145000-memory.dmp

Filesize
212KB

Download
memory/1992-10-0x0000000000110000-0x0000000000145000-memory.dmp

Filesize
212KB

Download
memory/1992-11-0x0000000000220000-0x0000000000255000-memory.dmp

Filesize
212KB

Download