b0fcbac8d85290c790ad1968d2959ce73f40682ea8f6ba79b6a57af25c7e0995

Analysis

max time kernel
95s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
04/09/2024, 10:32

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General

Target
b0fcbac8d85290c790ad1968d2959ce73f40682ea8f6ba79b6a57af25c7e0995.dll
Size 76KB
Sample240904-mlbcyazcmc
SHA256 b0fcbac8d85290c790ad1968d2959ce73f40682ea8f6ba79b6a57af25c7e0995
MD5 edfdb4f9aaa786d242fc1672d29aeafa
SHA1 ee6a09fad28a6097fd2df0fcd59b60c812cca3d1
SHA512 111514f1338fb25a9f08bf60831b12e647f7c930fd3344ff43e2d705a4e3bc645b0a3e329b550aaff1915d40e5b325fed4685bcfb6ea74c83fd8e35e74833dd4
SSDEEP 1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZPt2hCP251g:c8y93KQjy7G55riF1cMo03Jt2ZE
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

discovery upx

Malware Config

Signatures

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3648-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/3648-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4812	3648	WerFault.exe	83

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 AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3648	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 316 wrote to memory of 3648	316	rundll32.exe	83
PID 316 wrote to memory of 3648	316	rundll32.exe	83
PID 316 wrote to memory of 3648	316	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b0fcbac8d85290c790ad1968d2959ce73f40682ea8f6ba79b6a57af25c7e0995.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:316
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b0fcbac8d85290c790ad1968d2959ce73f40682ea8f6ba79b6a57af25c7e0995.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:3648
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3648 -s 712
    3⤵
    - Program crash
    PID:4812

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3648 -ip 3648
1⤵
PID:4032

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

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Downloads

memory/3648-0-0x0000000010000000-0x0000000010030000-memory.dmp

Download

memory/3648-1-0x0000000010000000-0x0000000010030000-memory.dmp