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Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/09/2024, 13:47

General

  • Target

    file.exe

  • Size

    403KB

  • MD5

    5456c9b238c54e52277972cdadf6764d

  • SHA1

    512977a16b78c08e9aeb028e06a5995fc36c0d40

  • SHA256

    6e25c012659d74422317726da92134c5e9a70a937a1ceb585b83aeb99eee36fd

  • SHA512

    bf6cfbbc35edcfec8d8dd2c7be5c587b2b43ada1bb1a43620711cc713b122e41b978cfb1b5b0f8dfe107bea00d34de02c7a112926302652f3810a779a818944b

  • SSDEEP

    12288:WAdGQU/9evJZ/vzqp68V09Ij7THMweRdj0EO:DdxJvJNvl+jPR2d4t

Malware Config

Extracted

Family

vidar

Version

11

Botnet

3a15237aa92dcd8ccca447211fb5fc2a

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://ghostreedmnu.shop/api

Signatures

  • Detect Vidar Stealer 13 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
  • Checks computer location settings 2 TTPs 3 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 64 IoCs
  • Executes dropped EXE 4 IoCs
  • 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 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
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 37 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:2700
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Checks computer location settings
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:604
      • C:\ProgramData\EHJJKFCBGI.exe
        "C:\ProgramData\EHJJKFCBGI.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4292
        • 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
          • Suspicious behavior: EnumeratesProcesses
          PID:4332
      • C:\ProgramData\FHCAEGCBFH.exe
        "C:\ProgramData\FHCAEGCBFH.exe"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2544
        • C:\Users\Admin\AppData\Local\Temp\Software\IDSM.exe
          "C:\Users\Admin\AppData\Local\Temp\Software\IDSM.exe"
          4⤵
          • Checks computer location settings
          • Drops startup file
          • Executes dropped EXE
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:3692
          • 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:4708
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\IEHDBAAFIDGD" & exit
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3908
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 10
          4⤵
          • System Location Discovery: System Language Discovery
          • Delays execution with timeout.exe
          PID:3840

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\EHJJKFCBGI.exe

    Filesize

    375KB

    MD5

    3f21d4209d237332463e5364186f1b91

    SHA1

    6ba5926a058b13e58e21fbb3c7e22074381b5c80

    SHA256

    c7995bd4c494c80060f42ee5b8519bfdbed13e047751e924aabc3710e412bc6d

    SHA512

    2d12345204e7a25fbfef9c4ede47713e7898eb387cc07b4eb05dfe104e2a0aaca6ec60529551fe2bb1e38cf710e4e00486a52e787a7db4a4f1d975cca2a5a419

  • C:\ProgramData\FHCAEGCBFH.exe

    Filesize

    25KB

    MD5

    5a7ef447d5d556b9d550da1cac582a7a

    SHA1

    3761d13fe006bf7332bbb6e697cd31cfe463e541

    SHA256

    1f8acba1d796a9ebaed193ece097f9e82c09f596ab79bd66362c5cda736df3d1

    SHA512

    3a15ba07b474eaf49c94cd5c61bfb64acf1021fe05520972cae458fd8bbd98d18a94590af3eaaac9f7e77be9a54084d68087f3439ad37be67145b5e19c6af0f3

  • C:\ProgramData\mozglue.dll

    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • C:\ProgramData\nss3.dll

    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\IDSM_5920cc3fd1c44eeb8a61bdc176445330.lnk

    Filesize

    1KB

    MD5

    fb065483fadf9abcbd619bdc7af9cff3

    SHA1

    7fcf446f168d0924a251b6fd86c387aed46ce216

    SHA256

    682d91ba1abaa45d3805f83090a6b070e78707d75fe7b2dd8d6bb6c915b5650a

    SHA512

    d6503d16c74218d9034d2f3d2ed61a20dc72e9a3d6a179c0e3048ac5299df6596d30e93442d15ecaac2d376c14a732820f104cdc65f97cbd6bb81fb2effe0fd1

  • memory/604-19-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/604-78-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/604-3-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/604-20-0x0000000022710000-0x000000002296F000-memory.dmp

    Filesize

    2.4MB

  • memory/604-35-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/604-36-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/604-52-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/604-53-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/604-8-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/604-6-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/604-77-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/604-18-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/604-85-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/604-86-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2544-118-0x00000000004C0000-0x00000000004CC000-memory.dmp

    Filesize

    48KB

  • memory/2544-119-0x0000000002700000-0x000000000270C000-memory.dmp

    Filesize

    48KB

  • memory/2700-11-0x0000000074640000-0x0000000074DF0000-memory.dmp

    Filesize

    7.7MB

  • memory/2700-0-0x000000007464E000-0x000000007464F000-memory.dmp

    Filesize

    4KB

  • memory/2700-1-0x0000000000260000-0x00000000002C8000-memory.dmp

    Filesize

    416KB

  • memory/4292-103-0x0000000072F7E000-0x0000000072F7F000-memory.dmp

    Filesize

    4KB

  • memory/4292-104-0x0000000000380000-0x00000000003E2000-memory.dmp

    Filesize

    392KB

  • memory/4332-149-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/4332-151-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/4332-153-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB