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Analysis

  • max time kernel
    117s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    19/09/2024, 22:32

General

  • Target

    2a5d249ebceed527e7ea8d3e5bd9f6769dca5731d45fa4a2aa1495a28b96f98b.exe

  • Size

    274KB

  • MD5

    cedcd86d234896b7a4f145f0d0c2afc7

  • SHA1

    4c4e420ba4c157bbf1b93f4822b242a2a9dd304a

  • SHA256

    2a5d249ebceed527e7ea8d3e5bd9f6769dca5731d45fa4a2aa1495a28b96f98b

  • SHA512

    eb70d3ccf6970256155ae533407a1d904092356272b9ebffead37fbf55a8530f07e19b5ab3990e3ab4ff8c5f82e4413eaed99e605d33a0a28878ff99d5c5ae75

  • SSDEEP

    6144:tevsJRmJAvNCf3GIaWAlgO6dEkcsLOTvisCKsB:tgGRmJUSGYAt6dEkcVTvlsB

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 17 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
  • Loads dropped DLL 2 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 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2a5d249ebceed527e7ea8d3e5bd9f6769dca5731d45fa4a2aa1495a28b96f98b.exe
    "C:\Users\Admin\AppData\Local\Temp\2a5d249ebceed527e7ea8d3e5bd9f6769dca5731d45fa4a2aa1495a28b96f98b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3048
    • 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:1808
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\FIDGHIIECGHD" & exit
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2196
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 10
          4⤵
          • System Location Discovery: System Language Discovery
          • Delays execution with timeout.exe
          PID:2468

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\CabB711.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\TarB734.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • \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/1808-15-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/1808-181-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/1808-535-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/1808-444-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/1808-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1808-11-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/1808-9-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/1808-8-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/1808-12-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/1808-20-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/1808-23-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/1808-5-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/1808-162-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/1808-18-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/1808-201-0x0000000020460000-0x00000000206BF000-memory.dmp

    Filesize

    2.4MB

  • memory/1808-211-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/1808-230-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/1808-425-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/1808-275-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/1808-3-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/1808-382-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/1808-363-0x0000000000400000-0x0000000000657000-memory.dmp

    Filesize

    2.3MB

  • memory/3048-1-0x0000000000B00000-0x0000000000B4A000-memory.dmp

    Filesize

    296KB

  • memory/3048-256-0x00000000740C0000-0x00000000747AE000-memory.dmp

    Filesize

    6.9MB

  • memory/3048-0-0x00000000740CE000-0x00000000740CF000-memory.dmp

    Filesize

    4KB

  • memory/3048-17-0x00000000740C0000-0x00000000747AE000-memory.dmp

    Filesize

    6.9MB