1c1d79429a64ef7c545ab6e20a59b6ec899e2e153779dd4698a5ef3481349f89

Analysis

max time kernel
118s
max time network
126s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
30/12/2023, 05:42

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General

Target

10418fcd3a60d0bb85e736a326c4e73d.dll
Size

21KB
MD5

10418fcd3a60d0bb85e736a326c4e73d
SHA1

48fd166534b6a6abdc05cd18aa634095d4b95bad
SHA256

1c1d79429a64ef7c545ab6e20a59b6ec899e2e153779dd4698a5ef3481349f89
SHA512

a996942c974704eb6d4fce7ea5a4b31c8768e0ab464d060ebf179f61e7e8bca8ccbd0742d61e39fd496473a42f2c0bdeb586ad098c2c53e877bf186b4139bbe2
SSDEEP

384:TujjSdgcmF5aAn9QUEK9X3Ybo0CDTi9xbTpRzDap1S:yjjSdpmTaHUP9bJ6l/zDa

Score

7^/10

persistence

Malware Config

Signatures

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ChkDisk.lnk	rundll32.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ChkDisk.dll	rundll32.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\autochk = "rundll32.exe C:\\Windows\\system32\\autochk.dll,_IWMPEvents@16"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\autochk = "rundll32.exe C:\\Users\\Admin\\protect.dll,_IWMPEvents@16"	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\autochk.dll	rundll32.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2996	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2448 wrote to memory of 2996	2448	rundll32.exe	28
PID 2448 wrote to memory of 2996	2448	rundll32.exe	28
PID 2448 wrote to memory of 2996	2448	rundll32.exe	28
PID 2448 wrote to memory of 2996	2448	rundll32.exe	28
PID 2448 wrote to memory of 2996	2448	rundll32.exe	28
PID 2448 wrote to memory of 2996	2448	rundll32.exe	28
PID 2448 wrote to memory of 2996	2448	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\10418fcd3a60d0bb85e736a326c4e73d.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2448
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\10418fcd3a60d0bb85e736a326c4e73d.dll,#1
  2⤵
  - Drops startup file
  - Adds Run key to start application
  - Drops file in System32 directory
  - Suspicious use of SetWindowsHookEx
  PID:2996

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 Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2996-0-0x0000000010000000-0x0000000010008000-memory.dmp

Filesize
32KB

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads