Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    05-10-2024 21:52

General

  • Target

    46560017777262ece006c15a0b7887c1dcd331d61590f7a214e56d2ef3eb1f72N.exe

  • Size

    413KB

  • MD5

    56452ff81a23bdcf4b7110ee2db1c080

  • SHA1

    d0e64ab1986a9756b7c40dde64b19928cde8732a

  • SHA256

    46560017777262ece006c15a0b7887c1dcd331d61590f7a214e56d2ef3eb1f72

  • SHA512

    6848eb4079216d3ff9f561afc197535d5f9172b901f3ecc4d7fec3347b4d11af9d3df004ee7ba33fc19153bdf9a4125075e4257ed2a131370e660b2c2e1c6936

  • SSDEEP

    12288:kQ/QeGgqmEcF5P4PoRRS97ruM5uNNkmEO:WeGgqwF7R0yMg1t

Malware Config

Extracted

Family

vidar

Version

11

Botnet

c31fc52166fceff10179a6e978714ff9

C2

https://steamcommunity.com/profiles/76561199780418869

https://t.me/ae5ed

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:130.0) Gecko/20100101 Firefox/130.0

Extracted

Family

lumma

Signatures

  • Detect Vidar Stealer 17 IoCs
  • Lumma Stealer, LummaC

    Lumma or LummaC is an infostealer written in C++ first seen in August 2022.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 11 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 3 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 14 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\46560017777262ece006c15a0b7887c1dcd331d61590f7a214e56d2ef3eb1f72N.exe
    "C:\Users\Admin\AppData\Local\Temp\46560017777262ece006c15a0b7887c1dcd331d61590f7a214e56d2ef3eb1f72N.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1872
    • 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:1800
      • C:\ProgramData\BFHDAEHDAK.exe
        "C:\ProgramData\BFHDAEHDAK.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1592
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1704
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1592 -s 52
          4⤵
          • Loads dropped DLL
          • Program crash
          PID:1536
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\FCAEBFIJKEBG" & exit
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1872
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 10
          4⤵
          • System Location Discovery: System Language Discovery
          • Delays execution with timeout.exe
          PID:1284

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\CabB849.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\TarB87B.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • \ProgramData\BFHDAEHDAK.exe

    Filesize

    548KB

    MD5

    3fb4a8def53df7777180f15d80b58c67

    SHA1

    9636394a400e2f8073d4bc54810ccece2863cfe4

    SHA256

    b9531ec0e9c23f11af6f6848e649cd59ab9e30c18c9727b8daed496bfa62f8e5

    SHA512

    331f3b03ca4adf4618ac2f298e4ca72c2141efa3c25070ae875c928e724bdfec921ab385645f54899bbf880715a62b3c355240558db7c25598130a949d4d1cd8

  • \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/1592-512-0x00000000002A4000-0x00000000002A5000-memory.dmp

    Filesize

    4KB

  • memory/1704-517-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/1704-514-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/1704-516-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/1704-518-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

    Filesize

    4KB

  • memory/1704-519-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/1704-515-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/1704-523-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/1704-522-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/1704-513-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/1704-556-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/1800-27-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/1800-451-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/1800-166-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/1800-185-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/1800-205-0x00000000203D0000-0x000000002062F000-memory.dmp

    Filesize

    2.4MB

  • memory/1800-219-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/1800-238-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/1800-15-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/1800-19-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/1800-369-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/1800-388-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/1800-413-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/1800-432-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/1800-13-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/1800-23-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/1800-24-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/1800-557-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/1800-5-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/1800-9-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/1800-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1800-11-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/1800-7-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/1872-21-0x0000000074230000-0x000000007491E000-memory.dmp

    Filesize

    6.9MB

  • memory/1872-4-0x0000000074230000-0x000000007491E000-memory.dmp

    Filesize

    6.9MB

  • memory/1872-2-0x0000000074230000-0x000000007491E000-memory.dmp

    Filesize

    6.9MB

  • memory/1872-1-0x00000000003F0000-0x0000000000458000-memory.dmp

    Filesize

    416KB

  • memory/1872-0-0x000000007423E000-0x000000007423F000-memory.dmp

    Filesize

    4KB