Analysis

  • max time kernel
    106s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    29-03-2023 20:02

General

  • Target

    tmp.exe

  • Size

    409KB

  • MD5

    24604438f2cb5fcbda87b9fe3f817bcb

  • SHA1

    fe61f3c2824ea356df33eba858d5abed8f46ef82

  • SHA256

    9a61e776585dc88a15e548278caead09cdb871d4f4fac962cf14f0d43eca9c25

  • SHA512

    179fbb54aa9f3f87ff56c2521354a846d67115e691f2c9821dca92ed01b0492334ced528b33d3062d9a5575fa3ae0e1a12f2cf89150d380234af3921edcb7f9d

  • SSDEEP

    6144:YtojTSy7+iRLF+NkKloo39+Te9Oy4BXZ/lZX02oNawWk/mrFy27UoZkCDqUFh:bSAM/99+Te9nWzZXcp/GF7UyDqUFh

Malware Config

Extracted

Family

vidar

Version

3

Botnet

2548f166286a0b36dbfd9f8a1ac09311

C2

https://t.me/zaskullz

https://steamcommunity.com/profiles/76561199486572327

http://135.181.87.234:80

Attributes
  • profile_id_v2

    2548f166286a0b36dbfd9f8a1ac09311

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Uses the VBS compiler for execution 1 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1920
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
        PID:1728

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

      Filesize

      61KB

      MD5

      e71c8443ae0bc2e282c73faead0a6dd3

      SHA1

      0c110c1b01e68edfacaeae64781a37b1995fa94b

      SHA256

      95b0a5acc5bf70d3abdfd091d0c9f9063aa4fde65bd34dbf16786082e1992e72

      SHA512

      b38458c7fa2825afb72794f374827403d5946b1132e136a0ce075dfd351277cf7d957c88dc8a1e4adc3bcae1fa8010dae3831e268e910d517691de24326391a6

    • C:\Users\Admin\AppData\Local\Temp\Tar4B7A.tmp

      Filesize

      161KB

      MD5

      be2bec6e8c5653136d3e72fe53c98aa3

      SHA1

      a8182d6db17c14671c3d5766c72e58d87c0810de

      SHA256

      1919aab2a820642490169bdc4e88bd1189e22f83e7498bf8ebdfb62ec7d843fd

      SHA512

      0d1424ccdf0d53faf3f4e13d534e12f22388648aa4c23edbc503801e3c96b7f73c7999b760b5bef4b5e9dd923dffe21a21889b1ce836dd428420bf0f4f5327ff

    • memory/1728-60-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

      Filesize

      4KB

    • memory/1728-58-0x0000000000400000-0x0000000000471000-memory.dmp

      Filesize

      452KB

    • memory/1728-59-0x0000000000400000-0x0000000000471000-memory.dmp

      Filesize

      452KB

    • memory/1728-55-0x0000000000400000-0x0000000000471000-memory.dmp

      Filesize

      452KB

    • memory/1728-61-0x0000000000400000-0x0000000000471000-memory.dmp

      Filesize

      452KB

    • memory/1728-64-0x0000000000400000-0x0000000000471000-memory.dmp

      Filesize

      452KB

    • memory/1728-65-0x0000000000400000-0x0000000000471000-memory.dmp

      Filesize

      452KB

    • memory/1728-57-0x0000000000400000-0x0000000000471000-memory.dmp

      Filesize

      452KB

    • memory/1728-56-0x0000000000400000-0x0000000000471000-memory.dmp

      Filesize

      452KB

    • memory/1728-118-0x0000000000400000-0x0000000000471000-memory.dmp

      Filesize

      452KB

    • memory/1920-54-0x0000000000B70000-0x0000000000BDC000-memory.dmp

      Filesize

      432KB

    • memory/1920-63-0x0000000004D00000-0x0000000004D40000-memory.dmp

      Filesize

      256KB

    • memory/1920-117-0x0000000004D00000-0x0000000004D40000-memory.dmp

      Filesize

      256KB