Analysis

  • max time kernel
    37s
  • max time network
    19s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    21-02-2024 11:12

General

  • Target

    Insidious.exe

  • Size

    303KB

  • MD5

    cd1ac5775cfc183e6ebfb9397f4ae3c7

  • SHA1

    8937b324e8c47f3b858d6e56c3705a96d5cf5d40

  • SHA256

    9b7e5212ceb95912f0776f8bd48eac1b1098e9807e8f27291a3ffdd592c4e974

  • SHA512

    d26c95bb9ccad0b1b3195e23dfc5b9e8cfeba458c0605ddefae3d807545b024a09d70aeb6d6f0c9d04472124b0ff7f28744ca534f107be2a72c0ab4366826c78

  • SSDEEP

    6144:YjFT6MDdbICydeB0iG54G4S+ZoHi63mA1D0LGC:YjzQ54G4SuoCU1DBC

Malware Config

Extracted

Family

44caliber

C2

https://discord.com/api/webhooks/1209815343875235840/T1sUleC88lxasrU1EpgCYPjJI1NBPf57Wdr3z0H9p3gJmNIVwOVbhzTSCb3qRBCKKNRj

Signatures

  • 44Caliber

    An open source infostealer written in C#.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Insidious.exe
    "C:\Users\Admin\AppData\Local\Temp\Insidious.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2112
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2112 -s 888
      2⤵
        PID:2804

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Credential Access

    Unsecured Credentials

    2
    T1552

    Credentials In Files

    2
    T1552.001

    Collection

    Data from Local System

    2
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2112-0-0x0000000001230000-0x0000000001282000-memory.dmp
      Filesize

      328KB

    • memory/2112-1-0x000007FEF56B0000-0x000007FEF609C000-memory.dmp
      Filesize

      9.9MB

    • memory/2112-2-0x000000001B190000-0x000000001B210000-memory.dmp
      Filesize

      512KB

    • memory/2112-21-0x000007FEF56B0000-0x000007FEF609C000-memory.dmp
      Filesize

      9.9MB