Analysis

  • max time kernel
    137s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/08/2024, 00:39

General

  • Target
    file.exe
  • Size 206KB
  • Sample240823-azmlxawekd
  • SHA256 f483cd73cfdc2768e4a02bae030ee1bf56bc6382150c4848aaf9914aebd16347
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • stealc

Botnet
  • default

C2
  • http://46.8.231.109

Attributes
  • url_path

    /c4754d4f680ead72.php

Extracted

Family
  • vidar

Version
  • 10.8

Botnet
  • 3cd4672c6baedc17edab0cb86e9453d1

C2
  • https://t.me/jamelwt

  • https://steamcommunity.com/profiles/76561199761128941

  • https://t.me/iyigunl

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://deicedosmzj.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.

  • Stealc

    Stealc is an infostealer written in C++.

  • 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 3 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).

  • Program crash 4 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 12 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 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 60 IoCs
  • Suspicious use of WriteProcessMemory 58 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:4116
    • 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:1804
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\AdminHCAAEGIJKE.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3132
        • C:\Users\AdminHCAAEGIJKE.exe
          "C:\Users\AdminHCAAEGIJKE.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:4864
          • 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:1892
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 1892 -s 868
              6⤵
              • Program crash
              PID:2572
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 1892 -s 1208
              6⤵
              • Program crash
              PID:3544
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\AdminIDGDAAKFHI.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4700
        • C:\Users\AdminIDGDAAKFHI.exe
          "C:\Users\AdminIDGDAAKFHI.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:232
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
            5⤵
            • 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:1424
            • C:\ProgramData\GDHIIIIEHC.exe
              "C:\ProgramData\GDHIIIIEHC.exe"
              6⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:3616
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                7⤵
                • System Location Discovery: System Language Discovery
                PID:4648
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 4648 -s 1232
                  8⤵
                  • Program crash
                  PID:5032
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 4648 -s 1256
                  8⤵
                  • Program crash
                  PID:3484
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\AKKFHDAKECFH" & exit
              6⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:1968
              • C:\Windows\SysWOW64\timeout.exe
                timeout /t 10
                7⤵
                • System Location Discovery: System Language Discovery
                • Delays execution with timeout.exe
                PID:3780
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --field-trial-handle=4508,i,4174666705242427184,7333705955694532165,262144 --variations-seed-version --mojo-platform-channel-handle=2380 /prefetch:3
    1⤵
      PID:224
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1892 -ip 1892
      1⤵
        PID:3216
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1892 -ip 1892
        1⤵
          PID:3904
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4224,i,4174666705242427184,7333705955694532165,262144 --variations-seed-version --mojo-platform-channel-handle=4564 /prefetch:8
          1⤵
            PID:4468
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4648 -ip 4648
            1⤵
              PID:4520
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4648 -ip 4648
              1⤵
                PID:848

              Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

                    AKKFHD

                    • Path C:\ProgramData\AKKFHDAKECFH\AKKFHD
                    • Size 232KB
                    • SHA256 90e5a153e8fdd736699c9b9d04241c317fadf83ddc507530dc56b13902f9188c
                    • MD5 SHA1 SHA512 SSDEEP

                    CFCBKK

                    • Path C:\ProgramData\AKKFHDAKECFH\CFCBKK
                    • Size 114KB
                    • SHA256 4928d3109995b2faee203bc67184c892e9633fc7df6ad619f5852cf680c36ed4
                    • MD5 SHA1 SHA512 SSDEEP

                    GDHIII

                    • Path C:\ProgramData\AKKFHDAKECFH\GDHIII
                    • Size 11KB
                    • SHA256 4c252a87d52df2ad5492595189a7f378833e57bd99dd4de7a37b097c6f7d4466
                    • MD5 SHA1 SHA512 SSDEEP

                    freebl3.dll

                    • Path C:\ProgramData\freebl3.dll
                    • Size 669KB
                    • SHA256 edd043f2005dbd5902fc421eabb9472a7266950c5cbaca34e2d590b17d12f5fa
                    • MD5 SHA1 SHA512 SSDEEP

                    mozglue.dll

                    • Path C:\ProgramData\mozglue.dll
                    • Size 593KB
                    • SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
                    • MD5 SHA1 SHA512 SSDEEP

                    msvcp140.dll

                    • Path C:\ProgramData\msvcp140.dll
                    • Size 439KB
                    • SHA256 5136a49a682ac8d7f1ce71b211de8688fce42ed57210af087a8e2dbc8a934062
                    • MD5 SHA1 SHA512 SSDEEP

                    nss3.dll

                    • Path C:\ProgramData\nss3.dll
                    • Size 2.0MB
                    • SHA256 ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
                    • MD5 SHA1 SHA512 SSDEEP

                    softokn3.dll

                    • Path C:\ProgramData\softokn3.dll
                    • Size 251KB
                    • SHA256 74ebbac956e519e16923abdc5ab8912098a4f64e38ddcb2eae23969f306afe5a
                    • MD5 SHA1 SHA512 SSDEEP

                    vcruntime140.dll

                    • Path C:\ProgramData\vcruntime140.dll
                    • Size 78KB
                    • SHA256 8934aaeb65b6e6d253dfe72dea5d65856bd871e989d5d3a2a35edfe867bb4825
                    • MD5 SHA1 SHA512 SSDEEP

                    AdminHCAAEGIJKE.exe

                    • Path C:\Users\AdminHCAAEGIJKE.exe
                    • Size 277KB
                    • SHA256 8fb9067b5e6f6c74b741a6fc32d21f640edaed0d856cdbf4b0ca4e9d88736c37
                    • MD5 SHA1 SHA512 SSDEEP

                    AdminIDGDAAKFHI.exe

                    • Path C:\Users\AdminIDGDAAKFHI.exe
                    • Size 191KB
                    • SHA256 856f48350c1064b855c7ecd52549bc3cc214c12e1c0d0fc5af91ff9c45fb2841
                    • MD5 SHA1 SHA512 SSDEEP

                    SCT Auditing Pending Reports

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\SCT Auditing Pending Reports
                    • Size 2B
                    • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                    • MD5 SHA1 SHA512

                    Sdch Dictionaries

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Sdch Dictionaries
                    • Size 40B
                    • SHA256 6028bd681dbf11a0a58dde8a0cd884115c04caa59d080ba51bde1b086ce0079d
                    • MD5 SHA1 SHA512

                    memory/232-110-0x0000000000D90000-0x0000000000DC4000-memory.dmp

                    memory/1424-113-0x0000000000400000-0x0000000000641000-memory.dmp

                    memory/1424-136-0x0000000000400000-0x0000000000641000-memory.dmp

                    memory/1424-216-0x0000000000400000-0x0000000000641000-memory.dmp

                    memory/1424-215-0x0000000000400000-0x0000000000641000-memory.dmp

                    memory/1424-208-0x0000000000400000-0x0000000000641000-memory.dmp

                    memory/1424-207-0x0000000000400000-0x0000000000641000-memory.dmp

                    memory/1424-171-0x0000000000400000-0x0000000000641000-memory.dmp

                    memory/1424-170-0x0000000000400000-0x0000000000641000-memory.dmp

                    memory/1424-154-0x0000000000400000-0x0000000000641000-memory.dmp

                    memory/1424-117-0x0000000000400000-0x0000000000641000-memory.dmp

                    memory/1424-115-0x0000000000400000-0x0000000000641000-memory.dmp

                    memory/1424-152-0x0000000000400000-0x0000000000641000-memory.dmp

                    memory/1424-138-0x0000000022060000-0x00000000222BF000-memory.dmp

                    memory/1424-135-0x0000000000400000-0x0000000000641000-memory.dmp

                    memory/1804-9-0x0000000061E00000-0x0000000061EF3000-memory.dmp

                    memory/1804-6-0x0000000000400000-0x0000000000643000-memory.dmp

                    memory/1804-102-0x0000000000400000-0x0000000000643000-memory.dmp

                    memory/1804-3-0x0000000000400000-0x0000000000643000-memory.dmp

                    memory/1804-111-0x0000000000400000-0x0000000000643000-memory.dmp

                    memory/1804-8-0x0000000000400000-0x0000000000643000-memory.dmp

                    memory/1892-120-0x0000000000400000-0x000000000044C000-memory.dmp

                    memory/1892-103-0x0000000000400000-0x000000000044C000-memory.dmp

                    memory/1892-96-0x0000000000400000-0x000000000044C000-memory.dmp

                    memory/1892-99-0x0000000000400000-0x000000000044C000-memory.dmp

                    memory/4116-100-0x0000000074A10000-0x00000000751C0000-memory.dmp

                    memory/4116-7-0x0000000074A10000-0x00000000751C0000-memory.dmp

                    memory/4116-0-0x0000000074A1E000-0x0000000074A1F000-memory.dmp

                    memory/4116-1-0x0000000000760000-0x0000000000798000-memory.dmp

                    memory/4864-93-0x000000007260E000-0x000000007260F000-memory.dmp

                    memory/4864-94-0x0000000000BB0000-0x0000000000BFA000-memory.dmp

                    memory/4864-153-0x0000000072600000-0x0000000072DB0000-memory.dmp

                    memory/4864-101-0x0000000072600000-0x0000000072DB0000-memory.dmp