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Resubmissions

06/01/2025, 12:00

250106-n6bpwawkdw 10

06/01/2025, 11:52

250106-n1zvhswjet 10

20/08/2024, 14:25

240820-rrk7js1blm 10

17/08/2024, 19:28

240817-x6wvgsvgpk 10

Analysis

  • max time kernel
    31s
  • max time network
    122s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/08/2024, 19:28

General

  • Target

    8b3d1dd675e2e030d63ef5ecd9fa05da46a577d9f3723e7b358e20a4f6892495.exe

  • Size

    181KB

  • MD5

    8604da617d2310a788d55a8a17158926

  • SHA1

    57be5e931ca21c501294dacd4744666adca8dc0a

  • SHA256

    8b3d1dd675e2e030d63ef5ecd9fa05da46a577d9f3723e7b358e20a4f6892495

  • SHA512

    0d1738c8ac0afe0de609744c14ee0deaf7217afa2292df166791508bb4146b1e377b8bec729f74cc077fd78f7fb8bc651552bb74d7614cf1db7cbefd1dad438c

  • SSDEEP

    3072:Pz2c0Rztm8NGdBXtfAzc1Gr/cMvOwUPfbldFw0t+Z0vhAVfDgZkCeJCsNIilreNO:PkseGXXtIg1GrtvOwUPfbldFw0t+Z0vT

Malware Config

Extracted

Family

vidar

C2

https://steamcommunity.com/profiles/76561199751190313

https://t.me/pech0nk

Attributes
  • user_agent

    Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Extracted

Family

lumma

C2

https://consciousourwi.shop/api

https://potentioallykeos.shop/api

https://interactiedovspm.shop/api

https://charecteristicdxp.shop/api

https://cagedwifedsozm.shop/api

https://deicedosmzj.shop/api

https://southedhiscuso.shop/api

https://weiggheticulop.shop/api

https://tenntysjuxmz.shop/api

Signatures

  • Detect Vidar Stealer 20 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
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 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 4 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 11 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 4 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of WriteProcessMemory 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8b3d1dd675e2e030d63ef5ecd9fa05da46a577d9f3723e7b358e20a4f6892495.exe
    "C:\Users\Admin\AppData\Local\Temp\8b3d1dd675e2e030d63ef5ecd9fa05da46a577d9f3723e7b358e20a4f6892495.exe"
    1⤵
    • 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:1140
    • C:\ProgramData\FHJKKECFIE.exe
      "C:\ProgramData\FHJKKECFIE.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4364
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        3⤵
        • Checks computer location settings
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Checks processor information in registry
        PID:1492
        • C:\ProgramData\JJKFBAKFBG.exe
          "C:\ProgramData\JJKFBAKFBG.exe"
          4⤵
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:4468
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
            5⤵
            • System Location Discovery: System Language Discovery
            PID:4540
        • C:\ProgramData\HCAKFBGCBF.exe
          "C:\ProgramData\HCAKFBGCBF.exe"
          4⤵
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1308
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
            5⤵
            • System Location Discovery: System Language Discovery
            PID:3180
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\JJDGCGHCGHCB" & exit
          4⤵
            PID:4976
            • C:\Windows\SysWOW64\timeout.exe
              timeout /t 10
              5⤵
              • Delays execution with timeout.exe
              PID:4604
      • C:\ProgramData\HCAAEBKEGH.exe
        "C:\ProgramData\HCAAEBKEGH.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1832
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          3⤵
          • System Location Discovery: System Language Discovery
          PID:4296
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\EGIJKEHCAKFC" & exit
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1156
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 10
          3⤵
          • System Location Discovery: System Language Discovery
          • Delays execution with timeout.exe
          PID:668

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\ProgramData\FHJKKECFIE.exe

      Filesize

      190KB

      MD5

      fedb687ed23f77925b35623027f799bb

      SHA1

      7f27d0290ecc2c81bf2b2d0fa1026f54fd687c81

      SHA256

      325396d5ffca8546730b9a56c2d0ed99238d48b5e1c3c49e7d027505ea13b8d1

      SHA512

      6d1fa39560f4d7ca57905bc57d615acf96b1ef69ca2a4d7c0353278e8d4466298ed87f514463c49d671cb0e3b6a269a78636a10a1e463dba5c83fe067dc5df18

    • C:\ProgramData\HCAAEBKEGH.exe

      Filesize

      276KB

      MD5

      a2fb40daa2aae2b589e7338057471282

      SHA1

      8b10a7281f347aa862f365b5bca41c87a8be472c

      SHA256

      409f89268972ae1bff240cc395cc31a3b3876b96f4d6e56fcc5fef74001fcf27

      SHA512

      48daa8f783b24451082c4c339e9f3f704037f89632b55ebf3b6d5b13a85f077785a8ff60f5d35eed8e03fc90543ec5df1b3a1e0dcdf60b7de5a0dc704ffac22a

    • C:\ProgramData\IJDBKKJKJEBF\IJKJJK

      Filesize

      160KB

      MD5

      f310cf1ff562ae14449e0167a3e1fe46

      SHA1

      85c58afa9049467031c6c2b17f5c12ca73bb2788

      SHA256

      e187946249cd390a3c1cf5d4e3b0d8f554f9acdc416bf4e7111fff217bb08855

      SHA512

      1196371de08c964268c44103ccaed530bda6a145df98e0f480d8ee5ad58cb6fb33ca4c9195a52181fe864726dcf52e6a7a466d693af0cda43400a3a7ef125fad

    • 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

    • memory/1140-8-0x0000000027C50000-0x0000000027EAF000-memory.dmp

      Filesize

      2.4MB

    • memory/1492-135-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/1492-114-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/1492-83-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/1492-136-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/1492-119-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/1492-118-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/1492-115-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/1492-108-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/1492-109-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/1492-134-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/1492-111-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/1492-112-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/1492-113-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/1492-87-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/1832-101-0x0000000000E30000-0x0000000000E7C000-memory.dmp

      Filesize

      304KB

    • memory/4296-106-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/4296-104-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/4364-86-0x0000000072190000-0x0000000072940000-memory.dmp

      Filesize

      7.7MB

    • memory/4364-110-0x0000000072190000-0x0000000072940000-memory.dmp

      Filesize

      7.7MB

    • memory/4364-80-0x0000000000FA0000-0x0000000000FD6000-memory.dmp

      Filesize

      216KB

    • memory/4364-79-0x000000007219E000-0x000000007219F000-memory.dmp

      Filesize

      4KB

    • memory/4540-126-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/4540-124-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/4540-138-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/4540-139-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/4540-140-0x000000001F780000-0x000000001F9DF000-memory.dmp

      Filesize

      2.4MB

    • memory/4540-154-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB

    • memory/4540-155-0x0000000000400000-0x0000000000643000-memory.dmp

      Filesize

      2.3MB