3de2d6529192a01326d53d2c067de03002e0aaeebfe6647af331e88c24ae4159

Analysis

max time kernel
93s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19-11-2024 23:11

Target

cr.dll
Size

2.5MB
MD5

45ae7cbbf61730443553cafb43a8c4ef
SHA1

e4beb99af5f6ab7c6e5afb897f460aefc657924e
SHA256

4b9b82f7a124d5ab5191aba38541abc76601a3bc3176234e46339c5dc12791b7
SHA512

2bd5d6a4ce25573808acc3ec33d27d2010aea3796b89d3ef87c2ccab1bf7b86609acf5a2df5342c1d367354f06d88c16783fc8e30a2cacf503e9bb7c7f0f4671
SSDEEP

24576:77OCQvkBXG0pKv80g6sToo8yn2u16IVaDOjPFclr2BCKF+gVu9Bd5rWx5AsSLD6s:mCuks0pKv8ouAIVZPFckBCLg

Score

3^/10

discovery

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1160 1420 WerFault.exe rundll32.exe
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

Processes:

rundll32.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe

pid	pid_target	process	target process
1160	1420	WerFault.exe	rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2872 wrote to memory of 1420	2872	rundll32.exe	rundll32.exe
PID 2872 wrote to memory of 1420	2872	rundll32.exe	rundll32.exe
PID 2872 wrote to memory of 1420	2872	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\cr.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2872
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\cr.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1420
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1420 -s 668
    3⤵
    - Program crash
    PID:1160

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1420 -ip 1420
1⤵
PID:3616

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

System Language Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

memory/1420-0-0x00000000770E2000-0x00000000770E3000-memory.dmp

Filesize
4KB

Download
memory/1420-1-0x00000000748C0000-0x0000000074B49000-memory.dmp

Filesize
2.5MB

Download