456be755d876295bee40e29e4e3043878a7765c1c2e8ac1e622c2ed6f0a87783

Analysis

max time kernel
93s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-12-2024 03:05

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

456be755d876295bee40e29e4e3043878a7765c1c2e8ac1e622c2ed6f0a87783N.dll
Size

100KB
MD5

35db5a4b1527f52df173cb584f8863c0
SHA1

3dbeb72f73c8f261635125e28186dc99a346b15d
SHA256

456be755d876295bee40e29e4e3043878a7765c1c2e8ac1e622c2ed6f0a87783
SHA512

add7dd43474e01966384ab31b5ae2e3dbc32b916c4beb23a0cb4465708cab98770c8ada033ebeab642358edbc3d07e0597cbef326585e3ff12cfd9fcc6259813
SSDEEP

1536:rNP0+uTEX7OpopI4iWb50WZgePYrEzt0GE/AiSTSDIqGU2U:x8+tYopj1N0WZVYrXdgs

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
552	rundll32Srv.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32Srv.exe	rundll32.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2188	552	WerFault.exe	84
1676	2464	WerFault.exe	83

System Location Discovery: System Language Discovery 1 TTPs 2 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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32Srv.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3744 wrote to memory of 2464	3744	rundll32.exe	83
PID 3744 wrote to memory of 2464	3744	rundll32.exe	83
PID 3744 wrote to memory of 2464	3744	rundll32.exe	83
PID 2464 wrote to memory of 552	2464	rundll32.exe	84
PID 2464 wrote to memory of 552	2464	rundll32.exe	84
PID 2464 wrote to memory of 552	2464	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\456be755d876295bee40e29e4e3043878a7765c1c2e8ac1e622c2ed6f0a87783N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3744
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\456be755d876295bee40e29e4e3043878a7765c1c2e8ac1e622c2ed6f0a87783N.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2464
- - C:\Windows\SysWOW64\rundll32Srv.exe
    C:\Windows\SysWOW64\rundll32Srv.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:552
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 552 -s 364
      4⤵
      Program crash
      PID:2188
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2464 -s 608
    3⤵
    - Program crash
    PID:1676

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 552 -ip 552
1⤵
PID:4052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 2464 -ip 2464
1⤵
PID:3420

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

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\rundll32Srv.exe

Filesize
59KB

MD5
54960c2df820f374ee1216a88a5750cd

SHA1
625417a11188c591c20837d0acea1f993f33e01a

SHA256
fd45f7c47b029a6f0a94ddd71135fe817f90ce7a231ce329ca47b648292b6cbc

SHA512
bbc05eb7872f4f7c3343f47bbda890b28ea6a51dc413fcc959ca515894ad3fdbbd893c4c0959acd1f8eaf479209e98d4641d318890758b7ebe7349c4c3757836

Download Submit
memory/552-5-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/2464-1-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2464-6-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download