Analysis

  • max time kernel
    61s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/04/2023, 09:15

General

  • Target

    6ca0732c155a15f67928a38c9c9ba8b2f08fb5e90fa38332b94b0457607c208b.exe

  • Size

    234KB

  • MD5

    4851971e37ce8cd2b61a795780b7d4b5

  • SHA1

    eab1b044ddb4df43660b96cf8000e6b0bacf9f6e

  • SHA256

    6ca0732c155a15f67928a38c9c9ba8b2f08fb5e90fa38332b94b0457607c208b

  • SHA512

    82bbaa0f15206a2322a75d20571baf20c5e7e91c6cc5e1d4fdc1aebc36624c2da7cefa036e7bf6d1e0252a914e705631829cc12ade308f872ffe008b7c8731de

  • SSDEEP

    3072:Yiwwb6hYh8zBR4FGTy8YkMwjmalLUZ7d+a+4alnzr1AXwBdR+6dO6drF4OogCY14:dY+hxl6pi4lnzr8wBWr692c1IOq

Malware Config

Extracted

Family

vidar

Version

3.3

Botnet

028224d8754aad544d9c102ba2ac630c

C2

https://steamcommunity.com/profiles/76561199492257783

https://t.me/justsometg

Attributes
  • profile_id_v2

    028224d8754aad544d9c102ba2ac630c

  • user_agent

    Mozilla/5.0 (X11; Linux 3.5.4-1-ARCH i686; es) KHTML/4.9.1 (like Gecko) Konqueror/4.9

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Blocklisted process makes network request 1 IoCs
  • 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 NtSetInformationThreadHideFromDebugger 20 IoCs
  • 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.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6ca0732c155a15f67928a38c9c9ba8b2f08fb5e90fa38332b94b0457607c208b.exe
    "C:\Users\Admin\AppData\Local\Temp\6ca0732c155a15f67928a38c9c9ba8b2f08fb5e90fa38332b94b0457607c208b.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1400
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:/Windows/SysWOW64/WindowsPowerShell/v1.0/powershell.exe"
      2⤵
      • Blocklisted process makes network request
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2044
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
        C:\Windows\Microsoft.NET/Framework/v4.0.30319/aspnet_compiler.exe
        3⤵
        • Loads dropped DLL
        • Checks processor information in registry
        PID:2744
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2744 -s 1844
          4⤵
          • Program crash
          PID:1668
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2744 -ip 2744
    1⤵
      PID:1672

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\mozglue.dll

      Filesize

      593KB

      MD5

      c8fd9be83bc728cc04beffafc2907fe9

      SHA1

      95ab9f701e0024cedfbd312bcfe4e726744c4f2e

      SHA256

      ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

      SHA512

      fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

    • C:\ProgramData\nss3.dll

      Filesize

      2.0MB

      MD5

      1cc453cdf74f31e4d913ff9c10acdde2

      SHA1

      6e85eae544d6e965f15fa5c39700fa7202f3aafe

      SHA256

      ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

      SHA512

      dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_erf5qxlv.uwk.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/1400-134-0x0000000005D10000-0x00000000062B4000-memory.dmp

      Filesize

      5.6MB

    • memory/1400-135-0x0000000005800000-0x0000000005892000-memory.dmp

      Filesize

      584KB

    • memory/1400-136-0x00000000057A0000-0x00000000057B0000-memory.dmp

      Filesize

      64KB

    • memory/1400-137-0x00000000057D0000-0x00000000057DA000-memory.dmp

      Filesize

      40KB

    • memory/1400-160-0x00000000057A0000-0x00000000057B0000-memory.dmp

      Filesize

      64KB

    • memory/1400-133-0x0000000000DB0000-0x0000000000DEC000-memory.dmp

      Filesize

      240KB

    • memory/2044-155-0x0000000006830000-0x0000000006874000-memory.dmp

      Filesize

      272KB

    • memory/2044-178-0x0000000002A20000-0x0000000002A30000-memory.dmp

      Filesize

      64KB

    • memory/2044-144-0x0000000005C80000-0x0000000005CE6000-memory.dmp

      Filesize

      408KB

    • memory/2044-142-0x0000000005A40000-0x0000000005A62000-memory.dmp

      Filesize

      136KB

    • memory/2044-154-0x00000000062F0000-0x000000000630E000-memory.dmp

      Filesize

      120KB

    • memory/2044-141-0x0000000002A20000-0x0000000002A30000-memory.dmp

      Filesize

      64KB

    • memory/2044-156-0x0000000007600000-0x0000000007676000-memory.dmp

      Filesize

      472KB

    • memory/2044-157-0x0000000002A20000-0x0000000002A30000-memory.dmp

      Filesize

      64KB

    • memory/2044-158-0x0000000007D00000-0x000000000837A000-memory.dmp

      Filesize

      6.5MB

    • memory/2044-159-0x0000000007680000-0x000000000769A000-memory.dmp

      Filesize

      104KB

    • memory/2044-140-0x00000000053E0000-0x0000000005A08000-memory.dmp

      Filesize

      6.2MB

    • memory/2044-138-0x0000000002A20000-0x0000000002A30000-memory.dmp

      Filesize

      64KB

    • memory/2044-139-0x00000000029A0000-0x00000000029D6000-memory.dmp

      Filesize

      216KB

    • memory/2044-143-0x0000000005B60000-0x0000000005BC6000-memory.dmp

      Filesize

      408KB

    • memory/2044-168-0x0000000002A20000-0x0000000002A30000-memory.dmp

      Filesize

      64KB

    • memory/2744-164-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/2744-163-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/2744-179-0x0000000061E00000-0x0000000061EF3000-memory.dmp

      Filesize

      972KB

    • memory/2744-162-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/2744-161-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/2744-247-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/2744-248-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB