Analysis

  • max time kernel
    122s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    23-09-2024 05:03

General

  • Target

    41b381e462f4108957fbab888701dfb9e605621507f8dd2d3f71a32b429c5f0c.exe

  • Size

    292KB

  • MD5

    0c4b826cab211945649ac4bbb0c48c6b

  • SHA1

    fe0132f85b63833f55a41651fcc0f32c1c96124d

  • SHA256

    41b381e462f4108957fbab888701dfb9e605621507f8dd2d3f71a32b429c5f0c

  • SHA512

    6e4ea6a514002c61cadfea41ae6aa9e81178570dbae5f78b79e95f654dc6c7716a8f98b812c805ad45423f0e657fab260492e46b2e6bb45d25520d933dc27363

  • SSDEEP

    6144:D8zag1zxFKmMqtXpA8dI41MwJckA3/l6ah4LXeofOdLBhShSpk+JEO:OjNxjXrX1z1845DdfCLBxZEO

Malware Config

Extracted

Family

vidar

C2

https://t.me/edm0d

https://steamcommunity.com/profiles/76561199768374681

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36 OPR/110.0.0.0

Signatures

  • Detect Vidar Stealer 14 IoCs
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 6 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 web browsers 2 TTPs

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

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • 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 2 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 43 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\41b381e462f4108957fbab888701dfb9e605621507f8dd2d3f71a32b429c5f0c.exe
    "C:\Users\Admin\AppData\Local\Temp\41b381e462f4108957fbab888701dfb9e605621507f8dd2d3f71a32b429c5f0c.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2696
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2752
      • C:\ProgramData\CGDGIJKFIJ.exe
        "C:\ProgramData\CGDGIJKFIJ.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2108
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1848
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 1848 -s 252
            5⤵
            • Program crash
            PID:628
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\CBAKEBGIIDAF" & exit
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1724
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 10
          4⤵
          • System Location Discovery: System Language Discovery
          • Delays execution with timeout.exe
          PID:1720

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\CabF45F.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\TarF491.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • \ProgramData\CGDGIJKFIJ.exe

    Filesize

    381KB

    MD5

    f5a1956973dce107d4c0b6267ce88870

    SHA1

    79a19513d7c9cff939f2881c4172a05dbaef735b

    SHA256

    7b794c5bdb820791f0359da90a9a4f258412b8feef9c6e6a0411f6aead9d3a04

    SHA512

    f42180c75c0ae8dc083c6fff98a66c0d875fadb400d7945816ea330a54777632a3a7752d3e78b90e45f58ed3d04d6708b1dcea51d82711356e6d14e405a7c579

  • \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/1848-528-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/1848-519-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/1848-525-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/1848-520-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/1848-522-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/1848-517-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/1848-518-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/2108-530-0x0000000072CE0000-0x00000000733CE000-memory.dmp

    Filesize

    6.9MB

  • memory/2108-495-0x00000000010B0000-0x0000000001110000-memory.dmp

    Filesize

    384KB

  • memory/2108-494-0x0000000072CEE000-0x0000000072CEF000-memory.dmp

    Filesize

    4KB

  • memory/2108-514-0x0000000072CE0000-0x00000000733CE000-memory.dmp

    Filesize

    6.9MB

  • memory/2108-531-0x0000000072CE0000-0x00000000733CE000-memory.dmp

    Filesize

    6.9MB

  • memory/2108-526-0x0000000002510000-0x0000000004510000-memory.dmp

    Filesize

    32.0MB

  • memory/2108-550-0x0000000072CE0000-0x00000000733CE000-memory.dmp

    Filesize

    6.9MB

  • memory/2696-307-0x00000000744C0000-0x0000000074BAE000-memory.dmp

    Filesize

    6.9MB

  • memory/2696-18-0x00000000744C0000-0x0000000074BAE000-memory.dmp

    Filesize

    6.9MB

  • memory/2696-1-0x0000000000E40000-0x0000000000E8A000-memory.dmp

    Filesize

    296KB

  • memory/2696-0-0x00000000744CE000-0x00000000744CF000-memory.dmp

    Filesize

    4KB

  • memory/2696-2-0x00000000744C0000-0x0000000074BAE000-memory.dmp

    Filesize

    6.9MB

  • memory/2696-4-0x00000000744C0000-0x0000000074BAE000-memory.dmp

    Filesize

    6.9MB

  • memory/2752-8-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/2752-10-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/2752-421-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/2752-440-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/2752-159-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/2752-6-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/2752-7-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/2752-208-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/2752-9-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/2752-378-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/2752-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2752-13-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/2752-15-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/2752-17-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/2752-359-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/2752-5-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/2752-178-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/2752-198-0x0000000020350000-0x00000000205AF000-memory.dmp

    Filesize

    2.4MB

  • memory/2752-227-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB