Analysis

  • max time kernel
    49s
  • max time network
    137s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    26-09-2024 02:02

General

  • Target

    922cc62136078b304e61183fc11d3a6258eecf23da272278897543b25ba1a541.exe

  • Size

    403KB

  • MD5

    03c94d73127dfe7f3d12aa591612cad6

  • SHA1

    1ced86cbe41cdd4710776c2bfda5ced85e11c5c8

  • SHA256

    922cc62136078b304e61183fc11d3a6258eecf23da272278897543b25ba1a541

  • SHA512

    dc36256646c2c5af54622be4f46e53bee22b47f4e54981138d0a8e675e679178a31d05bc8bd14e72254304f4a1ba6117c58b61d3be0d8a5a3ec93d0b592541cc

  • SSDEEP

    6144:AKSk+V/WTaEEVQTDHSICGdB2mgFwayoEkNS+GSYOuGVYk/xS8s4LegipEO:AnREEVOzSF1vn9EkNmljaYQxoKYEO

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://drawzhotdog.shop/api

https://gutterydhowi.shop/api

https://ghostreedmnu.shop/api

https://offensivedzvju.shop/api

https://vozmeatillu.shop/api

https://fragnantbui.shop/api

https://stogeneratmns.shop/api

https://reinforcenh.shop/api

https://performenj.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 3 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 15 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 1 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 5 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\922cc62136078b304e61183fc11d3a6258eecf23da272278897543b25ba1a541.exe
    "C:\Users\Admin\AppData\Local\Temp\922cc62136078b304e61183fc11d3a6258eecf23da272278897543b25ba1a541.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2100
    • 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:2412
      • C:\ProgramData\GHJDBAKEHD.exe
        "C:\ProgramData\GHJDBAKEHD.exe"
        3⤵
        • Drops startup file
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2908
        • C:\Users\Admin\AppData\Local\Temp\Malewmf\MFDBG.exe
          "C:\Users\Admin\AppData\Local\Temp\Malewmf\MFDBG.exe"
          4⤵
          • Drops startup file
          • Executes dropped EXE
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1272
          • C:\Users\Admin\AppData\Local\Temp\Malewmf\FDWDZ.exe
            "C:\Users\Admin\AppData\Local\Temp\Malewmf\FDWDZ.exe" --checker
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2252
      • C:\ProgramData\CFHIIJDBKE.exe
        "C:\ProgramData\CFHIIJDBKE.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3028
        • 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:2372
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\BFCFBKKKFHCF" & exit
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3056
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 10
          4⤵
          • System Location Discovery: System Language Discovery
          • Delays execution with timeout.exe
          PID:2664

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\GHJDBAKEHD.exe

    Filesize

    25KB

    MD5

    168087c84c5ff3664e5e2f4eec18d7dd

    SHA1

    639e9e87103f576617ed08c50910ca92fe5c8c5b

    SHA256

    2a7cdb79045658b9c02ebbb159e5b3680d7d6d832dbd757572f7d202c3fa935d

    SHA512

    89491261e1234f917964566def4b1a50505ba4c2eb90d14c19e2130d78fe65cd61c4bba685909109c7088b35e7fd48f6311ace7a0dd8c703a6d1b1d23d1a54bb

  • C:\Users\Admin\AppData\Local\Temp\CabAD61.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\TarAD83.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\MFDBG_041c59f2cfff47de85eda90655bca809.lnk

    Filesize

    1022B

    MD5

    94c96a6493a34eaa4b696a799abd5482

    SHA1

    886cc9c52a1676073aace7e1e6cf007c805326db

    SHA256

    1924b8a50c803deea97d669fca2b0498bcbeaade7f459473f48dba8fef8971bf

    SHA512

    4f60dc8c65ef8ca8f7a98edc0060379f400d0032a377eb13b8169cfdc8c09fb06986111a09083192a791ab9c08dce88efabd4702c43f9c0c55a961353bb27e7a

  • \ProgramData\CFHIIJDBKE.exe

    Filesize

    368KB

    MD5

    0cee1d66332dec523210f62e479284b9

    SHA1

    33f950916e13a6ec654c52160ee47e88c64a5724

    SHA256

    0a6a258bfdb9b1947f2945b44e274ff3f06a7c5c733ff83c2a71c5f911fa9cc0

    SHA512

    603aa4834c6d3a9f3b6b1629eeb2108cecfd7192110f0cf948f2971957a9231ad9d405d8424e3a41b32a8ff415d8f84e55afdec38bf996703093084162d11972

  • \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/1272-514-0x0000000000370000-0x000000000037C000-memory.dmp

    Filesize

    48KB

  • memory/2100-1-0x0000000000D00000-0x0000000000D68000-memory.dmp

    Filesize

    416KB

  • memory/2100-14-0x0000000074B20000-0x000000007520E000-memory.dmp

    Filesize

    6.9MB

  • memory/2100-0-0x0000000074B2E000-0x0000000074B2F000-memory.dmp

    Filesize

    4KB

  • memory/2252-532-0x00000000012D0000-0x00000000012DC000-memory.dmp

    Filesize

    48KB

  • memory/2372-598-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2372-584-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2372-586-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2372-588-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2372-590-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2372-592-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2372-595-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2372-596-0x0000000000400000-0x0000000000462000-memory.dmp

    Filesize

    392KB

  • memory/2412-8-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2412-16-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2412-356-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2412-375-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2412-418-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2412-437-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2412-4-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2412-5-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2412-13-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2412-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2412-11-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2412-7-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2412-157-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2412-3-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2412-6-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2412-259-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2412-206-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2412-187-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2412-177-0x0000000020560000-0x00000000207BF000-memory.dmp

    Filesize

    2.4MB

  • memory/2908-492-0x0000000000F50000-0x0000000000F5C000-memory.dmp

    Filesize

    48KB

  • memory/2908-491-0x000000007336E000-0x000000007336F000-memory.dmp

    Filesize

    4KB

  • memory/3028-558-0x0000000000F20000-0x0000000000F80000-memory.dmp

    Filesize

    384KB