d75c207829297c343a86f4e69cb87983d9c4083a6f0202f84ae1603180c84133

Analysis

max time kernel
134s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31-10-2024 08:23

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General

Target

$PLUGINSDIR/CrxInstaller.dll
Size

1.5MB
MD5

b9086dfa9511196d59814b0fb377b09a
SHA1

ec723cd037ec98fc933b3b67a54afb7dd9f8172c
SHA256

a804304dbbeecb815a9b8b90f071fe50ccec50502eb367f86bfc575db1102e85
SHA512

8d847d5096db55ee4744b1091c1cf481069f14e5b3fe4a73e42fff2639b4d520a49341fe1b61f69406b05e5c2d06ff6fc35f1ad73c39844fc3c80b01470411df
SSDEEP

24576:Ff64gx6dClC8MokQ/f6Qi/KgIxyTETKSkegNheT+pZUS+oeZfHV9fvXoa:whFLkCfMKggyTEcJGH99fvXT

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1504	4920	WerFault.exe	86

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 3416 wrote to memory of 4920	3416	rundll32.exe	86
PID 3416 wrote to memory of 4920	3416	rundll32.exe	86
PID 3416 wrote to memory of 4920	3416	rundll32.exe	86

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\CrxInstaller.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3416
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\CrxInstaller.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4920
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4920 -s 616
    3⤵
    - Program crash
    PID:1504

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4920 -ip 4920
1⤵
PID:2896

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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