Analysis

  • max time kernel
    145s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-12-2023 14:52

General

  • Target

    b3cb538f57939a70656641341da72e2d.exe

  • Size

    1.2MB

  • MD5

    b3cb538f57939a70656641341da72e2d

  • SHA1

    c10c9fc37329ceeb5419bf0c255de8087953ad9a

  • SHA256

    23b146523a0691aff74fe5748d14a2b00a68b5c80b747bebaa8707aa1775ca5e

  • SHA512

    3f0f10f096d52c2d5d02a679df8b5fa3d4eaa1ca6f7e9059acd10de30914f1251a47389cc8963aae38f519c05f4e55767a72f6d6ae0658f70c622f49e984bd07

  • SSDEEP

    24576:11yKPbmCt5QleCk1ItmkZsyyaxde/HE1NoignyoTCUF+uOr:mMbnt5QlwhGyt/H0NoVnyDW+uOr

Malware Config

Signatures

  • BlackGuard

    Infostealer first seen in Late 2021.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b3cb538f57939a70656641341da72e2d.exe
    "C:\Users\Admin\AppData\Local\Temp\b3cb538f57939a70656641341da72e2d.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:4992

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/4992-0-0x0000000000910000-0x0000000000CB6000-memory.dmp

    Filesize

    3.6MB

  • memory/4992-2-0x00000000740E0000-0x0000000074890000-memory.dmp

    Filesize

    7.7MB

  • memory/4992-1-0x0000000000910000-0x0000000000CB6000-memory.dmp

    Filesize

    3.6MB

  • memory/4992-4-0x00000000058E0000-0x00000000058F0000-memory.dmp

    Filesize

    64KB

  • memory/4992-3-0x0000000005710000-0x0000000005776000-memory.dmp

    Filesize

    408KB

  • memory/4992-29-0x0000000005FF0000-0x0000000006082000-memory.dmp

    Filesize

    584KB

  • memory/4992-30-0x0000000007030000-0x00000000075D4000-memory.dmp

    Filesize

    5.6MB

  • memory/4992-35-0x0000000000910000-0x0000000000CB6000-memory.dmp

    Filesize

    3.6MB

  • memory/4992-36-0x00000000740E0000-0x0000000074890000-memory.dmp

    Filesize

    7.7MB