Analysis

  • max time kernel
    121s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    06-07-2024 00:56

General

  • Target

    software.exe

  • Size

    5.5MB

  • MD5

    1ed6f9d578e14edad0bf47edf1f6269f

  • SHA1

    0e6546d7a7f237a4c094e24810fd4ab29ab6a970

  • SHA256

    83b2f6c63dc3ec6cea64755ce2042ff747d52571daaef8a47934e00378f0afd3

  • SHA512

    7481e391bc9fd0b0a30ca7464847e6ab0bbaa4febb8bfb33407742fd2e90f7fb0d88fd2ab0dc49fa499864e16a234d6f910926944c2a3ce337d614351dccfd60

  • SSDEEP

    98304:zeL9fRCBL/JS6w1PMcf5blPwJp003KOIupEAjlgJHc6:zeL9ROL/Eh/PQbaObEACl

Malware Config

Extracted

Family

vidar

C2

https://t.me/bu77un

https://steamcommunity.com/profiles/76561199730044335

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.1) Gecko/20100101 Firefox/128.1

Signatures

  • Detect Vidar Stealer 2 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 6 IoCs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 22 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\software.exe
    "C:\Users\Admin\AppData\Local\Temp\software.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3048
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      2⤵
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2984
      • C:\ProgramData\GDGIJECGDG.exe
        "C:\ProgramData\GDGIJECGDG.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:1688
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1688 -s 96
          4⤵
          • Loads dropped DLL
          • Program crash
          PID:1008
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\EGIDAAFIEHIE" & exit
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:572
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 10
          4⤵
          • Delays execution with timeout.exe
          PID:1348

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\GDGIJECGDG.exe

    Filesize

    937KB

    MD5

    168c5908924803d268d26965c32a5620

    SHA1

    9e0e2dc9c7e931c4ee860c32d83711c433f7b1a3

    SHA256

    2fd72d0d0fbc053a53adee5d9ec6cffde3fb5a3c6ba0c0490e24552b264d5449

    SHA512

    749f0e4da8d6fde35b53e769b0b594c2e63835f970eedc54c8c15889863811b5fb296650ae9f5e255bafdd4b942ad3434a60c48e05f1283820c378d30645f1c1

  • C:\Users\Admin\AppData\Local\Temp\CabDDA4.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\TarDE15.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • memory/2984-66-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2984-560-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2984-80-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2984-68-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/3048-54-0x0000000000F20000-0x0000000000F35000-memory.dmp

    Filesize

    84KB

  • memory/3048-62-0x0000000000F20000-0x0000000000F35000-memory.dmp

    Filesize

    84KB

  • memory/3048-32-0x0000000000F20000-0x0000000000F35000-memory.dmp

    Filesize

    84KB

  • memory/3048-30-0x0000000000F20000-0x0000000000F35000-memory.dmp

    Filesize

    84KB

  • memory/3048-28-0x0000000000F20000-0x0000000000F35000-memory.dmp

    Filesize

    84KB

  • memory/3048-24-0x0000000000F20000-0x0000000000F35000-memory.dmp

    Filesize

    84KB

  • memory/3048-40-0x0000000000F20000-0x0000000000F35000-memory.dmp

    Filesize

    84KB

  • memory/3048-38-0x0000000000F20000-0x0000000000F35000-memory.dmp

    Filesize

    84KB

  • memory/3048-22-0x0000000000F20000-0x0000000000F35000-memory.dmp

    Filesize

    84KB

  • memory/3048-20-0x0000000000F20000-0x0000000000F35000-memory.dmp

    Filesize

    84KB

  • memory/3048-50-0x0000000000F20000-0x0000000000F35000-memory.dmp

    Filesize

    84KB

  • memory/3048-48-0x0000000000F20000-0x0000000000F35000-memory.dmp

    Filesize

    84KB

  • memory/3048-52-0x0000000000F20000-0x0000000000F35000-memory.dmp

    Filesize

    84KB

  • memory/3048-46-0x0000000000F20000-0x0000000000F35000-memory.dmp

    Filesize

    84KB

  • memory/3048-44-0x0000000000F20000-0x0000000000F35000-memory.dmp

    Filesize

    84KB

  • memory/3048-0-0x0000000074DEE000-0x0000000074DEF000-memory.dmp

    Filesize

    4KB

  • memory/3048-42-0x0000000000F20000-0x0000000000F35000-memory.dmp

    Filesize

    84KB

  • memory/3048-18-0x0000000000F20000-0x0000000000F35000-memory.dmp

    Filesize

    84KB

  • memory/3048-64-0x0000000000F20000-0x0000000000F35000-memory.dmp

    Filesize

    84KB

  • memory/3048-34-0x0000000000F20000-0x0000000000F35000-memory.dmp

    Filesize

    84KB

  • memory/3048-60-0x0000000000F20000-0x0000000000F35000-memory.dmp

    Filesize

    84KB

  • memory/3048-58-0x0000000000F20000-0x0000000000F35000-memory.dmp

    Filesize

    84KB

  • memory/3048-56-0x0000000000F20000-0x0000000000F35000-memory.dmp

    Filesize

    84KB

  • memory/3048-16-0x0000000000F20000-0x0000000000F35000-memory.dmp

    Filesize

    84KB

  • memory/3048-14-0x0000000000F20000-0x0000000000F35000-memory.dmp

    Filesize

    84KB

  • memory/3048-12-0x0000000000F20000-0x0000000000F35000-memory.dmp

    Filesize

    84KB

  • memory/3048-8-0x0000000000F20000-0x0000000000F35000-memory.dmp

    Filesize

    84KB

  • memory/3048-6-0x0000000000F20000-0x0000000000F35000-memory.dmp

    Filesize

    84KB

  • memory/3048-5-0x0000000000F20000-0x0000000000F35000-memory.dmp

    Filesize

    84KB

  • memory/3048-65-0x0000000074DE0000-0x00000000754CE000-memory.dmp

    Filesize

    6.9MB

  • memory/3048-36-0x0000000000F20000-0x0000000000F35000-memory.dmp

    Filesize

    84KB

  • memory/3048-26-0x0000000000F20000-0x0000000000F35000-memory.dmp

    Filesize

    84KB

  • memory/3048-10-0x0000000000F20000-0x0000000000F35000-memory.dmp

    Filesize

    84KB

  • memory/3048-81-0x0000000074DE0000-0x00000000754CE000-memory.dmp

    Filesize

    6.9MB

  • memory/3048-4-0x0000000000F20000-0x0000000000F3C000-memory.dmp

    Filesize

    112KB

  • memory/3048-3-0x0000000004CB0000-0x0000000004D94000-memory.dmp

    Filesize

    912KB

  • memory/3048-2-0x0000000074DE0000-0x00000000754CE000-memory.dmp

    Filesize

    6.9MB

  • memory/3048-1-0x0000000000100000-0x000000000067A000-memory.dmp

    Filesize

    5.5MB