84ba766b1f292df812017d9c8549bd1026fbdd12b3eabe0e9ad491774f175ab8

Analysis

max time kernel
135s
max time network
130s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-10-2024 18:33

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General

Target

Autoupdater/CheckUpdate.dll
Size

603KB
MD5

06f19f2c355ef2fc0f3c2e1f74856763
SHA1

5ea576bfe653df45b2613281bcba94c4f8b4e1cd
SHA256

0e8aae587cb416d2ad4b885ad1b21cf7242ee8d6ecdf6d3a2bb477636e2dcec6
SHA512

c0e713ae7396e1f76957d19dd9243033299d8ff7eed3dfb1b371ba4c0963dacead718c105496b990f383551e996cfbf1c2f0436b409614425bc97acb3b258e0f
SSDEEP

12288:Yn5u4wJ9V2LIH5WOglMBaVXfstROdM+QAbuuCgBDoy4kgEEPaqY:86J9VOQO9buuCgtoy9gO

Score

5^/10

discovery

Malware Config

Signatures

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\log\checkupdate.log	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

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 4748 wrote to memory of 3724	4748	rundll32.exe	85
PID 4748 wrote to memory of 3724	4748	rundll32.exe	85
PID 4748 wrote to memory of 3724	4748	rundll32.exe	85

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\Autoupdater\CheckUpdate.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4748
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\Autoupdater\CheckUpdate.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  PID:3724

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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