fb3ca01802e7b7261f4d0e625bd3e1a7c24b275c77ec53392b59eb81324ea4e0

Analysis

max time kernel
149s
max time network
175s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
21/08/2026, 17:34

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General

Target
[Kimochi] RJ01535674/baselib.dll
Size 319KB
Sample260821-v5pcxaythy
SHA256 fb3ca01802e7b7261f4d0e625bd3e1a7c24b275c77ec53392b59eb81324ea4e0
MD5 31346089a3947960ccc3a79922268b1a
SHA1 0f7a0a97c7522b9a3f8010cd0eab400a53dd5d70
SHA512 8b4fa21e7f8b321c441ad9d1809bf7b9a234d7e15a3c67771a809524de583e63420be49dbdc85b99ecfe4b47eeba32c2183f8785c135544395fad857fd75500a
SSDEEP 6144:GysJoZIXcNWh4QM8RCyj1gGpuyH32zYQM0Lv5YhR2Me+8FLN2MfNEPfL/EB6D5ak:GXJoZIM/QMWCyjyyuyHGM02hVU0MfNEN
TLSH
T1B2649F1174008472E7AF01707D18BAE99AFD7E110FA0C6EF63E8462D9E715C1A63A67B
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
384	1280	WerFault.exe	87

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 1 IoCs

description	pid	Process	procid_target
PID 4592 wrote to memory of 1280	4592	rundll32.exe	87

C:\Windows\system32\rundll32.exe
rundll32.exe "C:\Users\Admin\AppData\Local\Temp\[Kimochi] RJ01535674\baselib.dll",#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4592
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Local\Temp\[Kimochi] RJ01535674\baselib.dll",#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1280
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1280 -s 612
    3⤵
    - Program crash
    PID:384

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1280 -ip 1280
1⤵
PID:2984

Network

MITRE ATT&CK Enterprise v16

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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