Analysis

  • max time kernel
    79s
  • max time network
    145s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    01-04-2021 13:01

General

  • Target

    21ccef2f0c663e5867ee090333b8206e.exe

  • Size

    1.6MB

  • MD5

    21ccef2f0c663e5867ee090333b8206e

  • SHA1

    e37e51fb105119a52af3d015fd96eda7a480232b

  • SHA256

    f24bd8c22941fdf06881f9e4ee40b44db08dcc8323b81aad6cd2e2aadb5ffb93

  • SHA512

    fc079ed52b9c48fb137b92c84b61e8d4f5d34acd17b4c2326cc821cb977ff70fc50caeff984660f345faf360500fdb290065ceacfbcd51622b6538b0051b86d1

Score
10/10

Malware Config

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Loads dropped DLL 2 IoCs
  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\21ccef2f0c663e5867ee090333b8206e.exe
    "C:\Users\Admin\AppData\Local\Temp\21ccef2f0c663e5867ee090333b8206e.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1056
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
      2⤵
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      PID:2544
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2544 -s 1672
        3⤵
        • Program crash
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:416

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • \ProgramData\mozglue.dll

    MD5

    8f73c08a9660691143661bf7332c3c27

    SHA1

    37fa65dd737c50fda710fdbde89e51374d0c204a

    SHA256

    3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

    SHA512

    0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

  • \ProgramData\nss3.dll

    MD5

    bfac4e3c5908856ba17d41edcd455a51

    SHA1

    8eec7e888767aa9e4cca8ff246eb2aacb9170428

    SHA256

    e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

    SHA512

    2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

  • memory/416-15-0x0000000004A40000-0x0000000004A41000-memory.dmp

    Filesize

    4KB

  • memory/1056-9-0x0000000004EC0000-0x0000000004ED3000-memory.dmp

    Filesize

    76KB

  • memory/1056-7-0x0000000004A60000-0x0000000004A61000-memory.dmp

    Filesize

    4KB

  • memory/1056-8-0x0000000004C90000-0x0000000004C91000-memory.dmp

    Filesize

    4KB

  • memory/1056-2-0x0000000073940000-0x000000007402E000-memory.dmp

    Filesize

    6.9MB

  • memory/1056-6-0x0000000004AC0000-0x0000000004AC1000-memory.dmp

    Filesize

    4KB

  • memory/1056-5-0x0000000004FC0000-0x0000000004FC1000-memory.dmp

    Filesize

    4KB

  • memory/1056-3-0x0000000000080000-0x0000000000081000-memory.dmp

    Filesize

    4KB

  • memory/2544-10-0x0000000000400000-0x0000000000498000-memory.dmp

    Filesize

    608KB

  • memory/2544-11-0x000000000046662D-mapping.dmp

  • memory/2544-12-0x0000000000400000-0x0000000000498000-memory.dmp

    Filesize

    608KB