a3a264617e3ef583f7a8e9747ad08da7c5e831ee25eb597543512ae32ddf628c

Analysis

max time kernel
13s
max time network
17s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
29/08/2024, 01:49

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

_bz2.dll
Size

72KB
MD5

7f8dc5e22155dfaeeee837bee907f960
SHA1

9d03bd1120fd67cb4a2a6e42707c3ecc95d56a31
SHA256

f2eaab5894a666556a6ec0f7b430deb30cdcdb534e822cda8c789435d3834535
SHA512

ac4ae9f88dbebdd6619be62252275260f476bec5765644de279dadf9f10437ebec526d833fbaae70686de1ef65fc574659191c2c8050df96b7ff7ff3fb51f80c
SSDEEP

1536:uHi3lVNW+yen/syxiC8b4dUL7BIh4Vxg4yGr:TlnJ6t1b4dUL7BIh4Vxbr

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2224	2980	WerFault.exe	30

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 11 IoCs

description	pid	Process	procid_target
PID 2404 wrote to memory of 2980	2404	rundll32.exe	30
PID 2404 wrote to memory of 2980	2404	rundll32.exe	30
PID 2404 wrote to memory of 2980	2404	rundll32.exe	30
PID 2404 wrote to memory of 2980	2404	rundll32.exe	30
PID 2404 wrote to memory of 2980	2404	rundll32.exe	30
PID 2404 wrote to memory of 2980	2404	rundll32.exe	30
PID 2404 wrote to memory of 2980	2404	rundll32.exe	30
PID 2980 wrote to memory of 2224	2980	rundll32.exe	31
PID 2980 wrote to memory of 2224	2980	rundll32.exe	31
PID 2980 wrote to memory of 2224	2980	rundll32.exe	31
PID 2980 wrote to memory of 2224	2980	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\_bz2.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2404
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\_bz2.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2980
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2980 -s 220
    3⤵
    - Program crash
    PID:2224

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

Replay Monitor

Loading Replay Monitor...

Downloads