597d06e44811afb2e030ccca2ae68e765ab69a08b27bc61d41f4caa7e60756c5

Analysis

max time kernel
103s
max time network
112s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
17/03/2025, 13:54

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General

Target

decaptcher.dll
Size

72KB
MD5

05aa12c2665ebd53f9505d0cf9f37b83
SHA1

c0e6e0401fe2bcf40251c3d4514c6b3d58b7a4a3
SHA256

6903e1192b4a90bd78f4a0853d6d72bc0fa74ce8800946c698a4406a60c2f239
SHA512

586ec510204719da09f2d0761a2d8f9aee0dc15252f9340fcb09137650e21354d3d3c025b362c297d0b3439587d65a3c294cbe2359aa9d6ce224c34fa674bcab
SSDEEP

1536:6/3nHtECUPHH0sV2gIHFLJtKbHBlnDLL:g3HtECU/DVVUuzBlnDLL

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5168	468	WerFault.exe	86

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 1832 wrote to memory of 468	1832	rundll32.exe	86
PID 1832 wrote to memory of 468	1832	rundll32.exe	86
PID 1832 wrote to memory of 468	1832	rundll32.exe	86

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\decaptcher.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1832
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\decaptcher.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  PID:468
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 468 -s 612
    3⤵
    - Program crash
    PID:5168

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 468 -ip 468
1⤵
PID:2328

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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