Analysis

  • max time kernel
    149s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • submitted
    11-09-2022 06:47

General

  • Target

    d311d95c1cbae9b5a21e2c52995a2ae6.exe

  • Size

    375KB

  • MD5

    d311d95c1cbae9b5a21e2c52995a2ae6

  • SHA1

    e6334f2bd1a4fc2926acff2888abb6835605ce70

  • SHA256

    33736e8940993c97705403cdbef1ceacb862b4a2fd126cd99b58718b937a9362

  • SHA512

    abe975a92068a9a77f9e0bff43bc12d66f330e2ae92edc45abc1367168c61477cf6fcba1368e20467576f473aca7d09ad14c97d3417b557f26fb79221a4bcf24

  • SSDEEP

    6144:HhtAlyCzt2Lmi0WCQD4erl+IPNqh/cDluYEBKTm46X0V77AoHuASdOX:HhtAPMmi0WCqvrl+IlNl/EkTmfEVdsOX

Malware Config

Extracted

Family

vidar

Version

54.2

Botnet

1438

C2

https://t.me/tigogames

https://ioc.exchange/@tiagoa26

Attributes
  • profile_id

    1438

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Loads dropped DLL 2 IoCs
  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Suspicious use of SetThreadContext 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
  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d311d95c1cbae9b5a21e2c52995a2ae6.exe
    "C:\Users\Admin\AppData\Local\Temp\d311d95c1cbae9b5a21e2c52995a2ae6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4444
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      2⤵
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4280
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c taskkill /im AppLaunch.exe /f & timeout /t 6 & del /f /q "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe" & del C:\PrograData\*.dll & exit
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1744
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /im AppLaunch.exe /f
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:2688
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 6
          4⤵
          • Delays execution with timeout.exe
          PID:4156

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\ProgramData\mozglue.dll

    Filesize

    133KB

    MD5

    8f73c08a9660691143661bf7332c3c27

    SHA1

    37fa65dd737c50fda710fdbde89e51374d0c204a

    SHA256

    3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

    SHA512

    0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

  • C:\ProgramData\nss3.dll

    Filesize

    1.2MB

    MD5

    bfac4e3c5908856ba17d41edcd455a51

    SHA1

    8eec7e888767aa9e4cca8ff246eb2aacb9170428

    SHA256

    e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

    SHA512

    2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

  • memory/1744-161-0x0000000000000000-mapping.dmp

  • memory/2688-162-0x0000000000000000-mapping.dmp

  • memory/4156-163-0x0000000000000000-mapping.dmp

  • memory/4280-132-0x0000000000000000-mapping.dmp

  • memory/4280-133-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/4280-139-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/4280-140-0x0000000060900000-0x0000000060992000-memory.dmp

    Filesize

    584KB