Analysis

  • max time kernel
    125s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    26-12-2020 18:58

General

  • Target

    0d21e2d58bff8760c99aa392e4f2e9fa.exe

  • Size

    519KB

  • MD5

    0d21e2d58bff8760c99aa392e4f2e9fa

  • SHA1

    b462c2a0956833e55e375593b666b45d4aae906f

  • SHA256

    99efe2a8deeea71edacb53813ca977c730b3d87db80122c7ea2cfa0f01b2ce7b

  • SHA512

    6d3e5d1fef66fe77eb5cfe93c5e5b868ca17399f2adf79753818f3c44a697699f5cbeae219d77baca81ef5917c363a6f4065121945440ae475a02f319b9f613a

Malware Config

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Loads dropped DLL 4 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • JavaScript code in executable 1 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0d21e2d58bff8760c99aa392e4f2e9fa.exe
    "C:\Users\Admin\AppData\Local\Temp\0d21e2d58bff8760c99aa392e4f2e9fa.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:1096

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1096-2-0x0000000005359000-0x000000000536A000-memory.dmp

    Filesize

    68KB

  • memory/1096-3-0x0000000005630000-0x0000000005641000-memory.dmp

    Filesize

    68KB

  • memory/1828-4-0x000007FEF77D0000-0x000007FEF7A4A000-memory.dmp

    Filesize

    2.5MB