bfa5e0df0e8fc72b9a2da771243de237e867dcb313146e9772885f9013d84a1e

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07-01-2025 06:56

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General

Target

$PLUGINSDIR/owbf.dll
Size

38KB
MD5

a3e66854ebc39bf5c56dba367d8151c4
SHA1

8421a86d7772cd2191c753421c6c42fb0c41ec05
SHA256

0c2e690572d7a0a66dfaff96486f73d456b34c5a7e37cfacc74fceaff4db9c62
SHA512

752324f9a0e5edeed8960d886460ca02bee5b4bc8a7b729a13a685b883c7190345dc202fb944d02056ede705abc248d346efc76127cd2c3a75447808814c39f2
SSDEEP

384:v2dM18Yb19J7ZX4qFTrtR1836QFlqIknaqRCz+7N/YvU8PI2gqf0j:vLR19J7ZFTJ7arFlRkh/Ys8Fja

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4740	4260	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 6 IoCs

description	pid	Process	procid_target
PID 4060 wrote to memory of 4260	4060	rundll32.exe	82
PID 4060 wrote to memory of 4260	4060	rundll32.exe	82
PID 4060 wrote to memory of 4260	4060	rundll32.exe	82
PID 4260 wrote to memory of 4892	4260	rundll32.exe	83
PID 4260 wrote to memory of 4892	4260	rundll32.exe	83
PID 4260 wrote to memory of 4892	4260	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\owbf.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4060
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\owbf.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4260
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\owbf.dll,#1
    3⤵
    PID:4892
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4260 -s 688
    3⤵
    - Program crash
    PID:4740

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4260 -ip 4260
1⤵
PID:4016

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

Replay Monitor

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Downloads

memory/4260-0-0x0000000010009000-0x000000001000B000-memory.dmp

Filesize
8KB

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