Analysis

  • max time kernel
    24s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    19-09-2024 23:33

General

  • Target

    file.exe

  • Size

    292KB

  • MD5

    4a8a0ccfecc930091116324c79c1006e

  • SHA1

    d790befcbc31a4befafeaf08879e15f99633b2a1

  • SHA256

    146b7006b041d25b6846c797234f38387ec4b141c4a7e4f100d0e6d2eda29088

  • SHA512

    ffef04766c2a9f9d038ccf6156ac7f03a0e0809adaf245a1347e5ece6ad31f9b37f283d71d34c031350456f30036078d5a3e97fa563bf6af6a8fcf6edeeb25d2

  • SSDEEP

    6144:eOqbmw1o1lVPSPP0qoKQy7xfkx2mjou4sFlOpHS9oEO:dOX05KKcbsTiHS6EO

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

Extracted

Family

lumma

C2

https://questionmwq.shop/api

https://chickerkuso.shop/api

https://achievenmtynwjq.shop/api

https://puredoffustow.shop/api

https://opponnentduei.shop/api

https://metallygaricwo.shop/api

https://milldymarskwom.shop/api

https://quotamkdsdqo.shop/api

https://carrtychaintnyw.shop/api

Signatures

  • Detect Vidar Stealer 16 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.

  • 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 2 IoCs
  • Loads dropped DLL 10 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 3 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 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 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 49 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:2756
    • 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:2384
      • C:\ProgramData\KEGCBFCBFB.exe
        "C:\ProgramData\KEGCBFCBFB.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1956
        • 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:976
      • C:\ProgramData\ECAEGHIJEH.exe
        "C:\ProgramData\ECAEGHIJEH.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1060
        • 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
          PID:1640
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\FBKKJEBFIDAE" & exit
        3⤵
          PID:1948
          • C:\Windows\SysWOW64\timeout.exe
            timeout /t 10
            4⤵
            • Delays execution with timeout.exe
            PID:2828

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\EDC238BFF48A31D55A97E1E93892934B_C31B2498754E340573F1336DE607D619

      Filesize

      471B

      MD5

      e4c9c228deb34fd1cfe809ad5d511938

      SHA1

      8bc49f78d86ba765d25d13e40dfeaa719c5cd6a4

      SHA256

      fb5db2210730bc192f671fa5786693678ea904d914aab03d09232a1c07acd5b5

      SHA512

      41f2e064008763af4512292d784daf27300b857add60dc5417bb6a9389e80b6863681d00e3e67b62686962c8f0f9afd7311ed028dc2f59e1d73174432ead1b69

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

      Filesize

      342B

      MD5

      a764dfd64e3f29dabcc843f496cbf198

      SHA1

      1afc509c2e5047dd9deed1f2dfb0dbe91902b0c3

      SHA256

      249e9bc04e401c7c1984e44308a10219d4c093dcfad9fb5957e24a99aa947c95

      SHA512

      c74374098b0c9e25626f65b3e5aa4333a3bd7bac9335659d7c018393703483e0e20163d18fd1fe58332f541af492669ca4b0ccdab563fa6e7ae067e6c1ee541e

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\EDC238BFF48A31D55A97E1E93892934B_C31B2498754E340573F1336DE607D619

      Filesize

      400B

      MD5

      f4691c66bfe8d439cfc9b4a657327df4

      SHA1

      8baa16c55918ca92458aa9a2e192ce0ead6e77ae

      SHA256

      3e83bb7da2140307ae5b9481657653ebcc3fa6059e45a9a86a684f8a452d359d

      SHA512

      a38198e1be77536582bdc49051098eb9f92be00bf6e60480ba992d93da365318f77f4828c7b9fb77745072ba6a7e08eaa786f14ac77c81347188fd09c6e88ee7

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\Q0WBLVJY\76561199768374681[1].htm

      Filesize

      33KB

      MD5

      58a0fa9b9d590b4937da56a3848f89c0

      SHA1

      f872c96603915800638951a1ea9286cb01f5817d

      SHA256

      2cafd9660c341edc740c29d00c560db59c7f8ee6187b967169dc1afceb4f3909

      SHA512

      e7fb8b2ca4c88f5d5f035539dc43c40a61aaab5e75755de3138e72537b3a8a8e4578c3624051826657104a6c0ac4b7d3402b44653d5e33448b2d68c8d49fc600

    • C:\Users\Admin\AppData\Local\Temp\Cab4D38.tmp

      Filesize

      70KB

      MD5

      49aebf8cbd62d92ac215b2923fb1b9f5

      SHA1

      1723be06719828dda65ad804298d0431f6aff976

      SHA256

      b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

      SHA512

      bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

    • C:\Users\Admin\AppData\Local\Temp\Tar4D4B.tmp

      Filesize

      181KB

      MD5

      4ea6026cf93ec6338144661bf1202cd1

      SHA1

      a1dec9044f750ad887935a01430bf49322fbdcb7

      SHA256

      8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

      SHA512

      6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

    • \ProgramData\ECAEGHIJEH.exe

      Filesize

      292KB

      MD5

      4a8a0ccfecc930091116324c79c1006e

      SHA1

      d790befcbc31a4befafeaf08879e15f99633b2a1

      SHA256

      146b7006b041d25b6846c797234f38387ec4b141c4a7e4f100d0e6d2eda29088

      SHA512

      ffef04766c2a9f9d038ccf6156ac7f03a0e0809adaf245a1347e5ece6ad31f9b37f283d71d34c031350456f30036078d5a3e97fa563bf6af6a8fcf6edeeb25d2

    • \ProgramData\KEGCBFCBFB.exe

      Filesize

      354KB

      MD5

      384a847ad2833788fa253433fd2eea8d

      SHA1

      1984d8788fe40bd95a90d7d4e9dea6c4e4ff6201

      SHA256

      de30491736617249b3e80fc9436ecf0f7675b3c3014509398c3db7298f93336a

      SHA512

      bcdbd44837629d8881c29a7c7f6a2d4e98b52fbc49952bad2c89340a1dee18fac9987aaa8a3d91905a1f88a216c0e2501201a8665f3df7d5f627ff71a2418aac

    • \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/976-519-0x0000000000400000-0x000000000045D000-memory.dmp

      Filesize

      372KB

    • memory/976-529-0x0000000000400000-0x000000000045D000-memory.dmp

      Filesize

      372KB

    • memory/976-517-0x0000000000400000-0x000000000045D000-memory.dmp

      Filesize

      372KB

    • memory/976-521-0x0000000000400000-0x000000000045D000-memory.dmp

      Filesize

      372KB

    • memory/976-524-0x0000000000400000-0x000000000045D000-memory.dmp

      Filesize

      372KB

    • memory/976-518-0x0000000000400000-0x000000000045D000-memory.dmp

      Filesize

      372KB

    • memory/976-526-0x0000000000400000-0x000000000045D000-memory.dmp

      Filesize

      372KB

    • memory/976-520-0x0000000000400000-0x000000000045D000-memory.dmp

      Filesize

      372KB

    • memory/1060-548-0x00000000002E0000-0x000000000032A000-memory.dmp

      Filesize

      296KB

    • memory/1640-747-0x00000000203F0000-0x000000002064F000-memory.dmp

      Filesize

      2.4MB

    • memory/1640-728-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/1640-709-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/1956-530-0x0000000072F30000-0x000000007361E000-memory.dmp

      Filesize

      6.9MB

    • memory/1956-528-0x0000000072F30000-0x000000007361E000-memory.dmp

      Filesize

      6.9MB

    • memory/1956-505-0x0000000072F30000-0x000000007361E000-memory.dmp

      Filesize

      6.9MB

    • memory/1956-496-0x00000000008C0000-0x000000000091A000-memory.dmp

      Filesize

      360KB

    • memory/1956-495-0x0000000072F3E000-0x0000000072F3F000-memory.dmp

      Filesize

      4KB

    • memory/2384-9-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/2384-8-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/2384-422-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/2384-379-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/2384-360-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/2384-229-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/2384-210-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/2384-200-0x00000000203B0000-0x000000002060F000-memory.dmp

      Filesize

      2.4MB

    • memory/2384-180-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/2384-161-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/2384-7-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/2384-441-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/2384-6-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/2384-11-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/2384-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2384-15-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/2384-17-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/2384-4-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/2384-20-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/2756-19-0x0000000074710000-0x0000000074DFE000-memory.dmp

      Filesize

      6.9MB

    • memory/2756-0-0x000000007471E000-0x000000007471F000-memory.dmp

      Filesize

      4KB

    • memory/2756-5-0x0000000074710000-0x0000000074DFE000-memory.dmp

      Filesize

      6.9MB

    • memory/2756-2-0x0000000074710000-0x0000000074DFE000-memory.dmp

      Filesize

      6.9MB

    • memory/2756-1-0x00000000008F0000-0x000000000093A000-memory.dmp

      Filesize

      296KB