Analysis

  • max time kernel
    135s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-04-2023 22:42

General

  • Target

    722e5c23eff7116dead7e70f52673519604efa15a2743939034cb2fccd1c4672.exe

  • Size

    326KB

  • MD5

    0d864f313f0f8bc51ab95e69e77177ce

  • SHA1

    cfe61207e7f7f1c4d3104425d2257f301e07f433

  • SHA256

    722e5c23eff7116dead7e70f52673519604efa15a2743939034cb2fccd1c4672

  • SHA512

    bed133ef77d0dfda0afbe14e27ea851437954672aef9f988ecb49afbe8aa55469ebd34d38355a423fd6f74e71a79d2cda99f602b0ab294c28c480fb3d444e418

  • SSDEEP

    6144:3qYMM+1vwaJL3FF97TUjlBUdkfBLBIZDya0LUQiTa+T:3qYMM+1oe3zsBUd2K4LUQi7

Malware Config

Extracted

Family

vidar

Version

3.5

Botnet

2234cb18bdcd93ea6f4e5f1473025a81

C2

https://steamcommunity.com/profiles/76561199497218285

https://t.me/tg_duckworld

Attributes
  • profile_id_v2

    2234cb18bdcd93ea6f4e5f1473025a81

  • user_agent

    Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.93 Safari/537.36 Vivaldi/3.7

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Loads dropped DLL 2 IoCs
  • 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.

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\722e5c23eff7116dead7e70f52673519604efa15a2743939034cb2fccd1c4672.exe
    "C:\Users\Admin\AppData\Local\Temp\722e5c23eff7116dead7e70f52673519604efa15a2743939034cb2fccd1c4672.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:1464
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1464 -s 2084
      2⤵
      • Program crash
      PID:2748
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1464 -ip 1464
    1⤵
      PID:4548

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\mozglue.dll

      Filesize

      593KB

      MD5

      c8fd9be83bc728cc04beffafc2907fe9

      SHA1

      95ab9f701e0024cedfbd312bcfe4e726744c4f2e

      SHA256

      ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

      SHA512

      fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

    • C:\ProgramData\nss3.dll

      Filesize

      2.0MB

      MD5

      1cc453cdf74f31e4d913ff9c10acdde2

      SHA1

      6e85eae544d6e965f15fa5c39700fa7202f3aafe

      SHA256

      ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

      SHA512

      dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

    • memory/1464-134-0x0000000004920000-0x0000000004977000-memory.dmp

      Filesize

      348KB

    • memory/1464-135-0x0000000000400000-0x0000000002BAC000-memory.dmp

      Filesize

      39.7MB

    • memory/1464-148-0x0000000004920000-0x0000000004977000-memory.dmp

      Filesize

      348KB

    • memory/1464-150-0x0000000061E00000-0x0000000061EF3000-memory.dmp

      Filesize

      972KB

    • memory/1464-149-0x0000000000400000-0x0000000002BAC000-memory.dmp

      Filesize

      39.7MB

    • memory/1464-220-0x0000000000400000-0x0000000002BAC000-memory.dmp

      Filesize

      39.7MB

    • memory/1464-221-0x0000000000400000-0x0000000002BAC000-memory.dmp

      Filesize

      39.7MB