d3500266325555c9e777a4c585afc05dfd73b4cbe9dba741c5876593b78059fd

Analysis

max time kernel
149s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20251016-en
resource tags

arch:x64arch:x86image:win10v2004-20251016-enlocale:en-usos:windows10-2004-x64system
submitted
04/11/2025, 15:47

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General

Target
DLLs/_bz2.dll
Size 71KB
Sample251104-s792aavmck
SHA256 befc81440bbc001bd7647aca42962ee0b45b08435ee9f7140bf570af636b7dd5
MD5 055cfc5297933c338d8c04fd4e2462a2
SHA1 bf8f97ee8136bfe3f93485e946f2069b7ce504e0
SHA512 308ebb33c47b73ecd9c4e4e54ffd09aae5a96019559ef7b2a37a45bd89c42d0d5bdd21da1835fffd84a138b03662c3d68bd72725a22f1b0ddf0329438819ead7
SSDEEP 1536:QVAWCyQNp7eoQO1Bt48bVDf5C1I/4VGmY3DasVplf:rWHW/1bVDf5C1I/4VFtWlf
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

discovery

Malware Config

Signatures

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 4424 wrote to memory of 748	4424	rundll32.exe	83
PID 4424 wrote to memory of 748	4424	rundll32.exe	83
PID 4424 wrote to memory of 748	4424	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\DLLs\_bz2.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4424
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\DLLs\_bz2.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:748

Network

MITRE ATT&CK Enterprise v16

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 v16

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