761e9816e1ee0adf78b0322bbb44cd6a3ab162db1bcc1a969d6bbbb9e1e9896f

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05/10/2024, 08:16

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General

Target

$TEMP/brickworks.dll
Size

188KB
MD5

917874763a917e3ec25a38c5f73d8abd
SHA1

f08b1c7b7bb6e65a5a76cb369f21f3ae2c631e47
SHA256

49e447af86d7f28d9d30d194de186d57efa5dc58e93c74bb27d0acc8a04bdf68
SHA512

a39f0f80f5ebdc6bf40f497c93248ae9815755fb59ba67534b2e18b216a3ddb8b9775c25419350cb42722d6a20131aa178be1d939c5535e40fb603c5b5c39a9f
SSDEEP

3072:IjUg6reeTBaswuBW48nZZx2V/oyjiLKEJ2V3XOO8Z1MG7C8Bnt/PSc:G6SmByuBW48nZGPjYKF3XXOeG7C8jPS

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2072	1104	WerFault.exe	82

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 4520 wrote to memory of 1104	4520	rundll32.exe	82
PID 4520 wrote to memory of 1104	4520	rundll32.exe	82
PID 4520 wrote to memory of 1104	4520	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$TEMP\brickworks.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4520
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$TEMP\brickworks.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1104
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1104 -s 604
    3⤵
    - Program crash
    PID:2072

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 1104 -ip 1104
1⤵
PID:4064

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

Windows 7 deprecation

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