91370a1ad29bacd8f98bfbc10dc8edf3efcc8d219a48a2ddd40ca3110c889df1

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07-01-2025 06:10

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General

Target

cr.dll
Size

674KB
MD5

e4d17e5f97b7adc505ada4ed0b62f20a
SHA1

b523b44b849923ed2d6a29163e9b6660146b601c
SHA256

b5aab790bd318d30202bc34f895cc21c1b91485a2b49fcae3e9b2227c9edecfd
SHA512

9901414d2d00f12254d245d9858d30825f3db1e2868da87136508c2fb9507ce018d9d4c64365ac221c42f748bb4abd45cc1a153abe9f9662e0ffa43df14435d5
SSDEEP

6144:ShkN+UOV+nk1Bv0/SKxjtE/c7oalQ1UradWPtFiQriFV2rbwPJE76lJD4B+YTsUm:SyNi1B8F5Nln8QrgJDgCPYtUv8EJQ

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2100	2104	WerFault.exe	30

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 11 IoCs

description	pid	Process	procid_target
PID 2212 wrote to memory of 2104	2212	rundll32.exe	30
PID 2212 wrote to memory of 2104	2212	rundll32.exe	30
PID 2212 wrote to memory of 2104	2212	rundll32.exe	30
PID 2212 wrote to memory of 2104	2212	rundll32.exe	30
PID 2212 wrote to memory of 2104	2212	rundll32.exe	30
PID 2212 wrote to memory of 2104	2212	rundll32.exe	30
PID 2212 wrote to memory of 2104	2212	rundll32.exe	30
PID 2104 wrote to memory of 2100	2104	rundll32.exe	31
PID 2104 wrote to memory of 2100	2104	rundll32.exe	31
PID 2104 wrote to memory of 2100	2104	rundll32.exe	31
PID 2104 wrote to memory of 2100	2104	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\cr.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2212
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\cr.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2104
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2104 -s 236
    3⤵
    - Program crash
    PID:2100

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/2104-0-0x000000007765F000-0x0000000077660000-memory.dmp

Filesize
4KB

Download
memory/2104-1-0x0000000074AF0000-0x0000000074BA0000-memory.dmp

Filesize
704KB

Download