Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    23-09-2024 17:05

General

  • Target

    file.exe

  • Size

    394KB

  • MD5

    e4681cf87d9e2a0dd09ff6e02fe79eb6

  • SHA1

    73c19d284b9358e694c1d686cb906b01518641a1

  • SHA256

    05f13d8e64e219b971189c97ef7ebec20ff1b5f9858bb88db814c62b4540f751

  • SHA512

    962686efb51ce376a75d939a2a351979967cbf5d364794feaba16642e6e463c63b5551635fe31eb4bd8be7fcc7940a9c1395cd80606f1349ad5e389e02a4ee0d

  • SSDEEP

    6144:exHv9xQGoaKiDWM6iKwxnKfrfrhCA5PK8W9VFpmuXj8WtlcaZOc:exHHJ961UnK02PKnV+uXj88caZ

Malware Config

Extracted

Family

vidar

Version

11

Botnet

d80be45a1eb6454ca916f92c36ebf67d

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

C2

https://surroundeocw.shop/api

https://racedsuitreow.shop/api

https://defenddsouneuw.shop/api

https://deallyharvenw.shop/api

https://priooozekw.shop/api

https://pumpkinkwquo.shop/api

https://abortinoiwiam.shop/api

https://covvercilverow.shop/api

Signatures

  • Detect Vidar Stealer 14 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
  • Drops startup file 64 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 64 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
  • Adds Run key to start application 2 TTPs 64 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • 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).

  • System Location Discovery: System Language Discovery 1 TTPs 9 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 7 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 51 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2612
    • 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:3024
      • C:\ProgramData\BAFIEGIECG.exe
        "C:\ProgramData\BAFIEGIECG.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1652
        • 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
          • Modifies system certificate store
          PID:304
      • C:\ProgramData\KFIIJJJDGC.exe
        "C:\ProgramData\KFIIJJJDGC.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2524
        • C:\Users\Admin\AppData\Local\Temp\Software\IDSM.exe
          "C:\Users\Admin\AppData\Local\Temp\Software\IDSM.exe"
          4⤵
          • Drops startup file
          • Executes dropped EXE
          • Loads dropped DLL
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1736
          • C:\Users\Admin\AppData\Local\Temp\Software\MSDNG.exe
            "C:\Users\Admin\AppData\Local\Temp\Software\MSDNG.exe" --checker
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1816
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\FIIECFHDBAAE" & exit
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:780
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 10
          4⤵
          • System Location Discovery: System Language Discovery
          • Delays execution with timeout.exe
          PID:1148

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\CabB0EA.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\TarB10C.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\IDSM_ca648ac898ca4d829d2a9ada4c7f1cf0.lnk

    Filesize

    1024B

    MD5

    9d1a3e666b95c5608ffb67aa13758230

    SHA1

    a1a7393a1cd02650497b322e957fc48694451725

    SHA256

    74fcb11a73ba76b861504a10b0eae745efc95a9ccd76e151915451afe4daca2d

    SHA512

    0e49e95454cfe0d1faa80ef387dc8edc16acfff1fbfd133c7dcd0f1c5b8e038f0daab5d33d3e22d0762a965aadfbfab1d7d3be204832b179583085f53e21fcba

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\IDSM_e8d452794f6d4d8f8d1782e355a0bd71.lnk

    Filesize

    1024B

    MD5

    98f46cc93eab3ba020ccede581255267

    SHA1

    26b95bd264861cb3961ba2bfcb8ed44ba56e29b6

    SHA256

    93e9f4ff350f97bdd0b6eaae8a8b5e5ddcb9d81d47ae08b09379112220fc6adc

    SHA512

    e016c24c278ace6c2aa8eb69bf1a4cba8c389dc8192dda9c76a503b07700832db14347b011bd4aae713ffa975ca45f68ffe448451b940fac44afa72e56e596ed

  • \ProgramData\BAFIEGIECG.exe

    Filesize

    362KB

    MD5

    583886f724d722f72c3ae477b0d2d40f

    SHA1

    7234b70620f127f291e3755385299dfe6d3fdfbd

    SHA256

    1957ace1277b9ac0b49bdce7485dfb01cdd208dc489e9ae079b528ef212b39ec

    SHA512

    499dc5703f327ef774eb44ce500b7219f102b44b6622e14fa01c02c8e399ebaae3021bbe992606677a0df64fb213f0932ca4e6d28e3e46ab08a4431aa5dc662b

  • \ProgramData\KFIIJJJDGC.exe

    Filesize

    409KB

    MD5

    39af78c7dafc5b1b5b42268fd412b6fd

    SHA1

    f91d6871cb72874f02d58a8ca099941696b69729

    SHA256

    3878f5b404de6159915d9eb4e00a59dd303c2e36ec1d36a883c47e0d51462556

    SHA512

    bd7fdf9dd91c0039da3e1c5427c4afb2558ed2e375583dbdb39dfd2578ab2e204f0d7d92e79d178ebf06cc30ce38f169998554129aec73ee8c244e09ff685f4d

  • \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/304-517-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/304-515-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/304-524-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/304-522-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/304-527-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/304-519-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/304-518-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/304-516-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/1652-786-0x0000000073640000-0x0000000073D2E000-memory.dmp

    Filesize

    6.9MB

  • memory/1652-526-0x0000000073640000-0x0000000073D2E000-memory.dmp

    Filesize

    6.9MB

  • memory/1652-494-0x000000007364E000-0x000000007364F000-memory.dmp

    Filesize

    4KB

  • memory/1652-495-0x0000000000E50000-0x0000000000EB0000-memory.dmp

    Filesize

    384KB

  • memory/1736-577-0x0000000001270000-0x000000000131A000-memory.dmp

    Filesize

    680KB

  • memory/1816-588-0x0000000000BA0000-0x0000000000C4A000-memory.dmp

    Filesize

    680KB

  • memory/2524-545-0x0000000001130000-0x00000000011DA000-memory.dmp

    Filesize

    680KB

  • memory/2524-555-0x0000000000360000-0x0000000000361000-memory.dmp

    Filesize

    4KB

  • memory/2612-14-0x0000000074E20000-0x000000007550E000-memory.dmp

    Filesize

    6.9MB

  • memory/2612-0-0x0000000074E2E000-0x0000000074E2F000-memory.dmp

    Filesize

    4KB

  • memory/2612-1-0x0000000001250000-0x00000000012B8000-memory.dmp

    Filesize

    416KB

  • memory/3024-7-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/3024-441-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/3024-422-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/3024-379-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/3024-360-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/3024-229-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/3024-210-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/3024-195-0x0000000020380000-0x00000000205DF000-memory.dmp

    Filesize

    2.4MB

  • memory/3024-176-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/3024-157-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/3024-6-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/3024-8-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/3024-11-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/3024-13-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/3024-16-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/3024-3-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/3024-5-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/3024-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/3024-4-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB