Analysis

  • max time kernel
    146s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    29/05/2023, 16:27

General

  • Target

    06188699.exe

  • Size

    437KB

  • MD5

    04197441a29753c237bc0c285082c0d8

  • SHA1

    463462810a45452d6e91364ae7858263437648dd

  • SHA256

    692fe3aca06ef0e1582fcf692dfd0e2e38e1b542368848318e0095a8f85f3d77

  • SHA512

    91456197c3d88bcf52ce557690751fe9d7b5b90c92313e00a11c7af75bdddf92623b26f7fa70c72df6083221010556052d366dcc45d091e46d8dfda585297a05

  • SSDEEP

    6144:oVju3O8Ay+erAUi0nS8L4PgujA8qZb1Mo0IdG:oVx8AkkUtfLFpmo9k

Malware Config

Extracted

Family

vidar

Version

4.1

Botnet

77a63e71a10ee1d81a28b5c866b75922

C2

https://steamcommunity.com/profiles/76561199510444991

https://t.me/task4manager

Attributes
  • profile_id_v2

    77a63e71a10ee1d81a28b5c866b75922

  • user_agent

    Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36 Edg/112.0.1722.34

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Suspicious use of SetThreadContext 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\06188699.exe
    "C:\Users\Admin\AppData\Local\Temp\06188699.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1992
    • C:\Users\Admin\AppData\Local\Temp\06188699.exe
      "C:\Users\Admin\AppData\Local\Temp\06188699.exe"
      2⤵
      • Loads dropped DLL
      • Modifies system certificate store
      PID:2008

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          62KB

          MD5

          3ac860860707baaf32469fa7cc7c0192

          SHA1

          c33c2acdaba0e6fa41fd2f00f186804722477639

          SHA256

          d015145d551ecd14916270efad773bbc9fd57fad2228d2c24559f696c961d904

          SHA512

          d62ad2408c969a95550fb87efda50f988770ba5e39972041bf85924275baf156b8bec309ecc6409e5acdd37ec175dea40eff921ab58933b5b5b5d35a6147567c

        • C:\Users\Admin\AppData\Local\Temp\Tar27B4.tmp

          Filesize

          164KB

          MD5

          4ff65ad929cd9a367680e0e5b1c08166

          SHA1

          c0af0d4396bd1f15c45f39d3b849ba444233b3a2

          SHA256

          c8733c93cc5aaf5ca206d06af22ee8dbdec764fb5085019a6a9181feb9dfdee6

          SHA512

          f530dc0d024a5a3b8903ffaaa41b608a5ccdd6da4ba1949f2c2e55a9fca475fec5c8d2119b5763cabe7ef1c3788fb9dcac621869db51d65b1d83cfe404fb4c27

        • \ProgramData\mozglue.dll

          Filesize

          593KB

          MD5

          c8fd9be83bc728cc04beffafc2907fe9

          SHA1

          95ab9f701e0024cedfbd312bcfe4e726744c4f2e

          SHA256

          ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

          SHA512

          fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

        • \ProgramData\nss3.dll

          Filesize

          2.0MB

          MD5

          1cc453cdf74f31e4d913ff9c10acdde2

          SHA1

          6e85eae544d6e965f15fa5c39700fa7202f3aafe

          SHA256

          ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

          SHA512

          dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

        • memory/1992-57-0x00000000002D0000-0x0000000000326000-memory.dmp

          Filesize

          344KB

        • memory/2008-55-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2008-56-0x0000000000400000-0x000000000046A000-memory.dmp

          Filesize

          424KB

        • memory/2008-59-0x0000000000400000-0x000000000046A000-memory.dmp

          Filesize

          424KB

        • memory/2008-60-0x0000000000400000-0x000000000046A000-memory.dmp

          Filesize

          424KB

        • memory/2008-112-0x0000000061E00000-0x0000000061EF3000-memory.dmp

          Filesize

          972KB

        • memory/2008-141-0x0000000000400000-0x000000000046A000-memory.dmp

          Filesize

          424KB

        • memory/2008-154-0x0000000000400000-0x000000000046A000-memory.dmp

          Filesize

          424KB