b46d57440fa4c6089011d9460c67a196b6cc1bc484860fe7077fad4e9925f1eb

Analysis

max time kernel
91s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
16-12-2024 03:50

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General

Target

BOOKMARK.dll
Size

54KB
MD5

8a8fb246f5bbb650c2ed039265ddd631
SHA1

12a3d2f91341c35eb1812cf015ef9b94191aae22
SHA256

7e5c87cc813f9cb61d89de1b11786e9f0b450266b6105b67e955b26f4b213922
SHA512

10bde3bc3892afb4ee51dd62278bd424ec5a93b765e1eeeba8ccf35af0eb62f8683174338adaae5888200948bf432d77c838ab2bfb1a72a0646617f025723e4a
SSDEEP

1536:dvO8VWe0p22xoOhqfFn7P98q8ok5eQ7G8G/:dnB0p22eOMh6eF

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
968	2340	WerFault.exe	81

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	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5048 wrote to memory of 2340	5048	rundll32.exe	81
PID 5048 wrote to memory of 2340	5048	rundll32.exe	81
PID 5048 wrote to memory of 2340	5048	rundll32.exe	81

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\BOOKMARK.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5048
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\BOOKMARK.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2340
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2340 -s 604
    3⤵
    - Program crash
    PID:968

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2340 -ip 2340
1⤵
PID:3480

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2340-0-0x0000000000A50000-0x0000000000A64000-memory.dmp

Filesize
80KB

Download
memory/2340-1-0x0000000000A50000-0x0000000000A64000-memory.dmp

Filesize
80KB

Download