Analysis

  • max time kernel
    133s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-06-2024 02:51

General

  • Target

    Setup.exe

  • Size

    707.9MB

  • MD5

    b25431a1b7b821eef6f77698c18fabb7

  • SHA1

    8986dac902bc4827925550dab54d522c9d508d50

  • SHA256

    b81deb9f7a113389c170b54921cd8ec33216e7819b91b3a413e2ee79ad592434

  • SHA512

    474e6f1ad5eb02557f3046e6f23f176bca72248617a2b6c4b9378ac18b72e32175a8976e3e8d106c454d12b946e920aa1048e374b701c218f87df1d335d15f27

  • SSDEEP

    196608:P/tv60Dx802nynypt/G0o55XGyPkqPVGEt3eaie54JngocFYKAAPIVelZ3wTVCZU:tBx802nygh6WwZjeaF549X

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

Version

10.1

Botnet

bd7a7ef85507e39998176b88b253bdb9

C2

https://t.me/memve4erin

https://steamcommunity.com/profiles/76561199699680841

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0

Signatures

  • Detect Vidar Stealer 6 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 3 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • Checks processor information in registry 2 TTPs 1 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 23 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Setup.exe
    "C:\Users\Admin\AppData\Local\Temp\Setup.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1904
    • C:\Windows\SysWOW64\netsh.exe
      C:\Windows\SysWOW64\netsh.exe
      2⤵
      • Event Triggered Execution: Netsh Helper DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:2160
      • C:\Users\Admin\AppData\Local\Temp\coml.au3
        C:\Users\Admin\AppData\Local\Temp\coml.au3
        3⤵
        • Checks computer location settings
        • Loads dropped DLL
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:3000
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\CBGCBKFBGIII" & exit
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:3700
          • C:\Windows\SysWOW64\timeout.exe
            timeout /t 10
            5⤵
            • Delays execution with timeout.exe
            PID:4548
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3060,i,3595107284059830391,18018199024659337217,262144 --variations-seed-version --mojo-platform-channel-handle=4064 /prefetch:8
    1⤵
      PID:1052
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --field-trial-handle=3612,i,3595107284059830391,18018199024659337217,262144 --variations-seed-version --mojo-platform-channel-handle=3416 /prefetch:3
      1⤵
        PID:4100

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\CBGCBKFBGIII\VCRUNT~1.DLL

        Filesize

        78KB

        MD5

        a37ee36b536409056a86f50e67777dd7

        SHA1

        1cafa159292aa736fc595fc04e16325b27cd6750

        SHA256

        8934aaeb65b6e6d253dfe72dea5d65856bd871e989d5d3a2a35edfe867bb4825

        SHA512

        3a7c260646315cf8c01f44b2ec60974017496bd0d80dd055c7e43b707cadba2d63aab5e0efd435670aa77886ed86368390d42c4017fc433c3c4b9d1c47d0f356

      • C:\ProgramData\CBGCBKFBGIII\mozglue.dll

        Filesize

        593KB

        MD5

        c8fd9be83bc728cc04beffafc2907fe9

        SHA1

        95ab9f701e0024cedfbd312bcfe4e726744c4f2e

        SHA256

        ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

        SHA512

        fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

      • C:\ProgramData\CBGCBKFBGIII\msvcp140.dll

        Filesize

        439KB

        MD5

        5ff1fca37c466d6723ec67be93b51442

        SHA1

        34cc4e158092083b13d67d6d2bc9e57b798a303b

        SHA256

        5136a49a682ac8d7f1ce71b211de8688fce42ed57210af087a8e2dbc8a934062

        SHA512

        4802ef62630c521d83a1d333969593fb00c9b38f82b4d07f70fbd21f495fea9b3f67676064573d2c71c42bc6f701992989742213501b16087bb6110e337c7546

      • C:\ProgramData\CBGCBKFBGIII\nss3.dll

        Filesize

        2.0MB

        MD5

        1cc453cdf74f31e4d913ff9c10acdde2

        SHA1

        6e85eae544d6e965f15fa5c39700fa7202f3aafe

        SHA256

        ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

        SHA512

        dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

      • C:\ProgramData\CBGCBKFBGIII\softokn3.dll

        Filesize

        251KB

        MD5

        4e52d739c324db8225bd9ab2695f262f

        SHA1

        71c3da43dc5a0d2a1941e874a6d015a071783889

        SHA256

        74ebbac956e519e16923abdc5ab8912098a4f64e38ddcb2eae23969f306afe5a

        SHA512

        2d4168a69082a9192b9248f7331bd806c260478ff817567df54f997d7c3c7d640776131355401e4bdb9744e246c36d658cb24b18de67d8f23f10066e5fe445f6

      • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\SCT Auditing Pending Reports

        Filesize

        2B

        MD5

        d751713988987e9331980363e24189ce

        SHA1

        97d170e1550eee4afc0af065b78cda302a97674c

        SHA256

        4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945

        SHA512

        b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

      • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Sdch Dictionaries

        Filesize

        40B

        MD5

        20d4b8fa017a12a108c87f540836e250

        SHA1

        1ac617fac131262b6d3ce1f52f5907e31d5f6f00

        SHA256

        6028bd681dbf11a0a58dde8a0cd884115c04caa59d080ba51bde1b086ce0079d

        SHA512

        507b2b8a8a168ff8f2bdafa5d9d341c44501a5f17d9f63f3d43bd586bc9e8ae33221887869fa86f845b7d067cb7d2a7009efd71dda36e03a40a74fee04b86856

      • C:\Users\Admin\AppData\Local\Temp\b5df97f2

        Filesize

        6.8MB

        MD5

        957edcb00ce0b522499f6c799ea11053

        SHA1

        b1c91d93701d206820e45118e0df50d34790d27d

        SHA256

        e4456eea3e2fca53bc2a06fd247eba74bf668c39069d5c821d082ef7dfa03f5d

        SHA512

        167cb1c01f28bc40f85d0d8f895346d147a286811550142ebdf659cc4ba92f015d4def386d58adf4c48b1946ee31ddd8dcbef50ba09533889e9ad161c9867eb6

      • C:\Users\Admin\AppData\Local\Temp\bb7083d5

        Filesize

        6.8MB

        MD5

        1d88c4434779a424cdc3383613851f80

        SHA1

        cc0b88adab15e067d943b4551f8f2af79f205ac3

        SHA256

        236206c5cf0e197614ad6663422da4d07a1720c3de1309b03c74367277995a00

        SHA512

        01dd009b6e69ad5a9e376c18148a6a9f078c45b8dcad1c28951a71445d543704591c161f4722856c3673d6fa2955ca088dd090a9cdc5c6f57fac69f30407bd7e

      • C:\Users\Admin\AppData\Local\Temp\coml.au3

        Filesize

        872KB

        MD5

        c56b5f0201a3b3de53e561fe76912bfd

        SHA1

        2a4062e10a5de813f5688221dbeb3f3ff33eb417

        SHA256

        237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d

        SHA512

        195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c

      • memory/1904-9-0x00007FFCB1700000-0x00007FFCB1872000-memory.dmp

        Filesize

        1.4MB

      • memory/1904-6-0x00007FFCB1700000-0x00007FFCB1872000-memory.dmp

        Filesize

        1.4MB

      • memory/1904-7-0x00007FFCB1718000-0x00007FFCB1719000-memory.dmp

        Filesize

        4KB

      • memory/1904-8-0x00007FFCB1700000-0x00007FFCB1872000-memory.dmp

        Filesize

        1.4MB

      • memory/1904-0-0x00007FF6384F0000-0x00007FF638CCB000-memory.dmp

        Filesize

        7.9MB

      • memory/2160-19-0x0000000074271000-0x000000007427F000-memory.dmp

        Filesize

        56KB

      • memory/2160-14-0x000000007427E000-0x0000000074280000-memory.dmp

        Filesize

        8KB

      • memory/2160-15-0x0000000074271000-0x000000007427F000-memory.dmp

        Filesize

        56KB

      • memory/2160-12-0x00007FFCCF470000-0x00007FFCCF665000-memory.dmp

        Filesize

        2.0MB

      • memory/3000-23-0x00007FFCCF470000-0x00007FFCCF665000-memory.dmp

        Filesize

        2.0MB

      • memory/3000-97-0x0000000001200000-0x000000000194B000-memory.dmp

        Filesize

        7.3MB

      • memory/3000-103-0x0000000001200000-0x000000000194B000-memory.dmp

        Filesize

        7.3MB

      • memory/3000-118-0x0000000001200000-0x000000000194B000-memory.dmp

        Filesize

        7.3MB

      • memory/3000-119-0x0000000001200000-0x000000000194B000-memory.dmp

        Filesize

        7.3MB

      • memory/3000-27-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        Filesize

        972KB

      • memory/3000-26-0x0000000001200000-0x000000000194B000-memory.dmp

        Filesize

        7.3MB

      • memory/3000-21-0x0000000001200000-0x000000000194B000-memory.dmp

        Filesize

        7.3MB