Analysis

  • max time kernel
    121s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    05-07-2024 20:49

General

  • Target

    048aee0544f6faf502419b571a053980.exe

  • Size

    5.9MB

  • MD5

    048aee0544f6faf502419b571a053980

  • SHA1

    047c0fb760c3af3b0a1e741bd808858090dd70bf

  • SHA256

    ddeeff4e5314374020eec0588d404cbd6ffd20ebf828bc81e9b0816def71232f

  • SHA512

    4fa292dade05bfc568ba6a39f129bdf88e59486faadebd64f2488fac79893c49b95c1bd7a606afae5e2add7cfece62554aa6d0e5ebd9f4eb75ba20dd462e8940

  • SSDEEP

    98304:jYBYLosS6pvT7gIit3r648uaK9hobG/c70C0LRaFS:cBYLNS6pvT76t3r6bJK9hobZEVp

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 1 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\048aee0544f6faf502419b571a053980.exe
    "C:\Users\Admin\AppData\Local\Temp\048aee0544f6faf502419b571a053980.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1968
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      2⤵
        PID:2704
      • 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:2644
        • C:\ProgramData\HCBGDGCAAK.exe
          "C:\ProgramData\HCBGDGCAAK.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:2424
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 2424 -s 96
            4⤵
            • Loads dropped DLL
            • Program crash
            PID:2164
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\BGDAAKJJDAAK" & exit
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2076
          • C:\Windows\SysWOW64\timeout.exe
            timeout /t 10
            4⤵
            • Delays execution with timeout.exe
            PID:2360

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\CabBA7B.tmp

      Filesize

      70KB

      MD5

      49aebf8cbd62d92ac215b2923fb1b9f5

      SHA1

      1723be06719828dda65ad804298d0431f6aff976

      SHA256

      b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

      SHA512

      bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

      Filesize

      181KB

      MD5

      4ea6026cf93ec6338144661bf1202cd1

      SHA1

      a1dec9044f750ad887935a01430bf49322fbdcb7

      SHA256

      8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

      SHA512

      6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

    • \ProgramData\HCBGDGCAAK.exe

      Filesize

      937KB

      MD5

      168c5908924803d268d26965c32a5620

      SHA1

      9e0e2dc9c7e931c4ee860c32d83711c433f7b1a3

      SHA256

      2fd72d0d0fbc053a53adee5d9ec6cffde3fb5a3c6ba0c0490e24552b264d5449

      SHA512

      749f0e4da8d6fde35b53e769b0b594c2e63835f970eedc54c8c15889863811b5fb296650ae9f5e255bafdd4b942ad3434a60c48e05f1283820c378d30645f1c1

    • memory/1968-39-0x00000000004A0000-0x00000000004B5000-memory.dmp

      Filesize

      84KB

    • memory/1968-62-0x00000000004A0000-0x00000000004B5000-memory.dmp

      Filesize

      84KB

    • memory/1968-32-0x00000000004A0000-0x00000000004B5000-memory.dmp

      Filesize

      84KB

    • memory/1968-22-0x00000000004A0000-0x00000000004B5000-memory.dmp

      Filesize

      84KB

    • memory/1968-6-0x00000000004A0000-0x00000000004B5000-memory.dmp

      Filesize

      84KB

    • memory/1968-65-0x0000000074C10000-0x00000000752FE000-memory.dmp

      Filesize

      6.9MB

    • memory/1968-64-0x00000000004A0000-0x00000000004B5000-memory.dmp

      Filesize

      84KB

    • memory/1968-34-0x00000000004A0000-0x00000000004B5000-memory.dmp

      Filesize

      84KB

    • memory/1968-60-0x00000000004A0000-0x00000000004B5000-memory.dmp

      Filesize

      84KB

    • memory/1968-58-0x00000000004A0000-0x00000000004B5000-memory.dmp

      Filesize

      84KB

    • memory/1968-56-0x00000000004A0000-0x00000000004B5000-memory.dmp

      Filesize

      84KB

    • memory/1968-54-0x00000000004A0000-0x00000000004B5000-memory.dmp

      Filesize

      84KB

    • memory/1968-36-0x00000000004A0000-0x00000000004B5000-memory.dmp

      Filesize

      84KB

    • memory/1968-50-0x00000000004A0000-0x00000000004B5000-memory.dmp

      Filesize

      84KB

    • memory/1968-48-0x00000000004A0000-0x00000000004B5000-memory.dmp

      Filesize

      84KB

    • memory/1968-46-0x00000000004A0000-0x00000000004B5000-memory.dmp

      Filesize

      84KB

    • memory/1968-44-0x00000000004A0000-0x00000000004B5000-memory.dmp

      Filesize

      84KB

    • memory/1968-42-0x00000000004A0000-0x00000000004B5000-memory.dmp

      Filesize

      84KB

    • memory/1968-40-0x00000000004A0000-0x00000000004B5000-memory.dmp

      Filesize

      84KB

    • memory/1968-0-0x0000000074C1E000-0x0000000074C1F000-memory.dmp

      Filesize

      4KB

    • memory/1968-52-0x00000000004A0000-0x00000000004B5000-memory.dmp

      Filesize

      84KB

    • memory/1968-4-0x00000000004A0000-0x00000000004BC000-memory.dmp

      Filesize

      112KB

    • memory/1968-5-0x00000000004A0000-0x00000000004B5000-memory.dmp

      Filesize

      84KB

    • memory/1968-30-0x00000000004A0000-0x00000000004B5000-memory.dmp

      Filesize

      84KB

    • memory/1968-28-0x00000000004A0000-0x00000000004B5000-memory.dmp

      Filesize

      84KB

    • memory/1968-27-0x00000000004A0000-0x00000000004B5000-memory.dmp

      Filesize

      84KB

    • memory/1968-24-0x00000000004A0000-0x00000000004B5000-memory.dmp

      Filesize

      84KB

    • memory/1968-21-0x00000000004A0000-0x00000000004B5000-memory.dmp

      Filesize

      84KB

    • memory/1968-18-0x00000000004A0000-0x00000000004B5000-memory.dmp

      Filesize

      84KB

    • memory/1968-16-0x00000000004A0000-0x00000000004B5000-memory.dmp

      Filesize

      84KB

    • memory/1968-15-0x00000000004A0000-0x00000000004B5000-memory.dmp

      Filesize

      84KB

    • memory/1968-12-0x00000000004A0000-0x00000000004B5000-memory.dmp

      Filesize

      84KB

    • memory/1968-10-0x00000000004A0000-0x00000000004B5000-memory.dmp

      Filesize

      84KB

    • memory/1968-8-0x00000000004A0000-0x00000000004B5000-memory.dmp

      Filesize

      84KB

    • memory/1968-1-0x0000000000DF0000-0x00000000013CC000-memory.dmp

      Filesize

      5.9MB

    • memory/1968-2-0x0000000074C10000-0x00000000752FE000-memory.dmp

      Filesize

      6.9MB

    • memory/1968-3-0x0000000005140000-0x000000000529E000-memory.dmp

      Filesize

      1.4MB

    • memory/1968-76-0x0000000074C10000-0x00000000752FE000-memory.dmp

      Filesize

      6.9MB

    • memory/2644-69-0x0000000000400000-0x0000000000648000-memory.dmp

      Filesize

      2.3MB

    • memory/2644-66-0x0000000000400000-0x0000000000648000-memory.dmp

      Filesize

      2.3MB

    • memory/2644-67-0x0000000000400000-0x0000000000648000-memory.dmp

      Filesize

      2.3MB

    • memory/2644-68-0x0000000000400000-0x0000000000648000-memory.dmp

      Filesize

      2.3MB