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
    04-10-2024 21:07

General

  • Target

    61ffde65177f9cea78164dd99fe7ecfc7ff9f95309f9b9b7d631870faedf6710.exe

  • Size

    404KB

  • MD5

    15e48f59b50e093dd715c721cec58a29

  • SHA1

    9e8a996b0a8a3c78b7a90bca971d8dd015d5885c

  • SHA256

    61ffde65177f9cea78164dd99fe7ecfc7ff9f95309f9b9b7d631870faedf6710

  • SHA512

    681a6c84a0f2bc8f6d5fe0ce8559b77a9844655385222494ebab191090859415fe7aa88f5834362480a71e982e8c1d02cace1d5b0589693b49495d9face5d497

  • SSDEEP

    6144:hWDZTxXwKjzPrI1UEnjGVqpQduF2dupEzn3ZFunIYUNQ6ZRuR0nXjXzDzgSqqeBj:2Jfajqq8ucd6K3ZFunmHZRu0XXD0JjEO

Malware Config

Extracted

Family

vidar

Version

11

Botnet

8a5f3a9817555d8b0b805aaf007d558d

C2

https://t.me/jamsemlg

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

Extracted

Family

lumma

C2

https://spirittunek.store/api

https://mobbipenju.store/api

https://eaglepawnoy.store/api

https://dissapoiznw.store/api

https://studennotediw.store/api

https://bathdoomgaz.store/api

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 30 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\61ffde65177f9cea78164dd99fe7ecfc7ff9f95309f9b9b7d631870faedf6710.exe
    "C:\Users\Admin\AppData\Local\Temp\61ffde65177f9cea78164dd99fe7ecfc7ff9f95309f9b9b7d631870faedf6710.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2688
    • 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:2656
      • C:\ProgramData\BAFBFCBGHD.exe
        "C:\ProgramData\BAFBFCBGHD.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2424
        • 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:2200
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2424 -s 52
          4⤵
          • Loads dropped DLL
          • Program crash
          PID:1688
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\BAKFBKEHDBGH" & exit
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1756
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 10
          4⤵
          • System Location Discovery: System Language Discovery
          • Delays execution with timeout.exe
          PID:2308

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    342B

    MD5

    4323d2f440b48a2e1f86ec7b0a0e5432

    SHA1

    c6610b1be100835d01e11b1a6a5c54e3dac916b4

    SHA256

    40cef29d11fa1cd3f949d1c850d5a795130c8952affc35529c301a4236ca86eb

    SHA512

    89f15f4676fab2075de9c23321bf5ebeec88a59ae51465366e3d46172fe201cd414f61b4509cc63928041bf651ba49a187f233ebd208dcfecdae4a959bfbc2cb

  • C:\Users\Admin\AppData\Local\Temp\CabFF19.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\TarFF2B.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • \ProgramData\BAFBFCBGHD.exe

    Filesize

    518KB

    MD5

    efbfec97a10f612bb7d1c528f03ece1e

    SHA1

    a98bca7ce107d390e8dd5a6f2822ccd34378f8c8

    SHA256

    3642e58272247143e3d60ae51738f4bd89fe52e41237f9ceaff0642d482d85e3

    SHA512

    33fc075adf327c4fab93ed1ea0206e8e22aa452e395392c08e0183e7a3b59f6da097a11c7e7a9d661a9f107d39f557ab84bfc84ef9048b97bee01fd50526d2d2

  • \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/2200-497-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/2200-500-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/2200-501-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

    Filesize

    4KB

  • memory/2200-502-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/2200-496-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/2200-499-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/2200-498-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/2200-504-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/2200-505-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/2200-547-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/2424-495-0x00000000010D0000-0x00000000010D1000-memory.dmp

    Filesize

    4KB

  • memory/2656-15-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2656-19-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2656-176-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2656-195-0x0000000017B20000-0x0000000017D7F000-memory.dmp

    Filesize

    2.4MB

  • memory/2656-210-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2656-229-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2656-548-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2656-20-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2656-360-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2656-379-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2656-380-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2656-423-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2656-442-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2656-157-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2656-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2656-10-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2656-17-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2656-12-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2656-11-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2656-3-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2656-5-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2656-8-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2688-0-0x0000000073F1E000-0x0000000073F1F000-memory.dmp

    Filesize

    4KB

  • memory/2688-7-0x0000000073F10000-0x00000000745FE000-memory.dmp

    Filesize

    6.9MB

  • memory/2688-1-0x00000000013E0000-0x000000000144A000-memory.dmp

    Filesize

    424KB

  • memory/2688-23-0x0000000073F10000-0x00000000745FE000-memory.dmp

    Filesize

    6.9MB