Analysis

  • max time kernel
    148s
  • max time network
    150s
  • 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, 10:20

General

  • Target
    file.exe
  • Size 206KB
  • Sample240823-mc4ccs1clm
  • SHA256 ec14cfd38041403f5462dd47bbe9791f07f50d1f92f798559a720428da56ddec
  • 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
  • dbd9cbe5987c13eba51899f4a06d17a4

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://potentioallykeos.shop/api

Signatures

  • Detect Vidar Stealer 12 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 1 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 3 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 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 64 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:1868
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
        PID:4000
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        2⤵
          PID:2016
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          2⤵
            PID:992
          • 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:1128
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\AdminECBGHCGCBK.exe"
              3⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:876
              • C:\Users\AdminECBGHCGCBK.exe
                "C:\Users\AdminECBGHCGCBK.exe"
                4⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • System Location Discovery: System Language Discovery
                • Suspicious use of WriteProcessMemory
                PID:1616
                • 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:4532
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 864
                    6⤵
                    • Program crash
                    PID:1088
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\AdminDHJJEGHIID.exe"
              3⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:1536
              • C:\Users\AdminDHJJEGHIID.exe
                "C:\Users\AdminDHJJEGHIID.exe"
                4⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • System Location Discovery: System Language Discovery
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                PID:1216
                • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
                  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
                  5⤵
                    PID:1080
                  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
                    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
                    5⤵
                    • Loads dropped DLL
                    • System Location Discovery: System Language Discovery
                    • Checks processor information in registry
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of WriteProcessMemory
                    PID:2736
                    • C:\ProgramData\CFBAKKJDBK.exe
                      "C:\ProgramData\CFBAKKJDBK.exe"
                      6⤵
                      • Executes dropped EXE
                      • Suspicious use of SetThreadContext
                      • System Location Discovery: System Language Discovery
                      • Suspicious use of WriteProcessMemory
                      PID:2944
                      • 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:2768
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 2768 -s 1236
                          8⤵
                          • Program crash
                          PID:2952
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 2768 -s 860
                          8⤵
                          • Program crash
                          PID:208
                    • C:\Windows\SysWOW64\cmd.exe
                      "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\EHJKJDGCGDAK" & exit
                      6⤵
                      • System Location Discovery: System Language Discovery
                      PID:5040
                      • C:\Windows\SysWOW64\timeout.exe
                        timeout /t 10
                        7⤵
                        • System Location Discovery: System Language Discovery
                        • Delays execution with timeout.exe
                        PID:2972
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4532 -ip 4532
            1⤵
              PID:408
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 2768 -ip 2768
              1⤵
                PID:1236
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 2768 -ip 2768
                1⤵
                  PID:4780

                Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      DHJJEG

                      • Path C:\ProgramData\EHJKJDGCGDAK\DHJJEG
                      • Size 116KB
                      • SHA256 8d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8
                      • MD5 SHA1 SHA512 SSDEEP

                      KEGCFC

                      • Path C:\ProgramData\EHJKJDGCGDAK\KEGCFC
                      • Size 11KB
                      • SHA256 58634c009b33b0dd92a30513bb5309b79bae12aae7d41e453cdff1ef5d313fb1
                      • MD5 SHA1 SHA512 SSDEEP

                      KKEHIE

                      • Path C:\ProgramData\EHJKJDGCGDAK\KKEHIE
                      • Size 114KB
                      • SHA256 ff39b4812a90876b408365be758c698fd40b7f0b2d6591099e021f7d642ff991
                      • 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

                      AdminDHJJEGHIID.exe

                      • Path C:\Users\AdminDHJJEGHIID.exe
                      • Size 4.4MB
                      • SHA256 f0e9658f598de709473b84c8201738d6e1921d009093a3e17327838c6955f44e
                      • MD5 SHA1 SHA512 SSDEEP

                      AdminECBGHCGCBK.exe

                      • Path C:\Users\AdminECBGHCGCBK.exe
                      • Size 277KB
                      • SHA256 06062fe6b0a4eb5028f8a4647f7ffb49f666a19465c026ca7485511b3bcc0a39
                      • MD5 SHA1 SHA512 SSDEEP

                      memory/1128-54-0x0000000000400000-0x0000000000643000-memory.dmp

                      memory/1128-9-0x0000000061E00000-0x0000000061EF3000-memory.dmp

                      memory/1128-8-0x0000000000400000-0x0000000000643000-memory.dmp

                      memory/1128-6-0x0000000000400000-0x0000000000643000-memory.dmp

                      memory/1128-114-0x0000000000400000-0x0000000000643000-memory.dmp

                      memory/1128-3-0x0000000000400000-0x0000000000643000-memory.dmp

                      memory/1216-106-0x0000000004FF0000-0x0000000005130000-memory.dmp

                      memory/1216-108-0x0000000004F30000-0x0000000004F52000-memory.dmp

                      memory/1216-107-0x0000000005130000-0x000000000526E000-memory.dmp

                      memory/1216-104-0x00000000001D0000-0x0000000000648000-memory.dmp

                      memory/1216-105-0x0000000004F50000-0x0000000004FEC000-memory.dmp

                      memory/1616-88-0x000000007256E000-0x000000007256F000-memory.dmp

                      memory/1616-98-0x0000000072560000-0x0000000072D10000-memory.dmp

                      memory/1616-95-0x0000000072560000-0x0000000072D10000-memory.dmp

                      memory/1616-89-0x00000000005F0000-0x000000000063A000-memory.dmp

                      memory/1868-1-0x0000000000180000-0x00000000001B8000-memory.dmp

                      memory/1868-7-0x0000000074970000-0x0000000075120000-memory.dmp

                      memory/1868-0-0x000000007497E000-0x000000007497F000-memory.dmp

                      memory/2736-158-0x0000000000400000-0x0000000000641000-memory.dmp

                      memory/2736-194-0x0000000000400000-0x0000000000641000-memory.dmp

                      memory/2736-127-0x0000000022670000-0x00000000228CF000-memory.dmp

                      memory/2736-202-0x0000000000400000-0x0000000000641000-memory.dmp

                      memory/2736-125-0x0000000000400000-0x0000000000641000-memory.dmp

                      memory/2736-142-0x0000000000400000-0x0000000000641000-memory.dmp

                      memory/2736-159-0x0000000000400000-0x0000000000641000-memory.dmp

                      memory/2736-201-0x0000000000400000-0x0000000000641000-memory.dmp

                      memory/2736-193-0x0000000000400000-0x0000000000641000-memory.dmp

                      memory/2736-141-0x0000000000400000-0x0000000000641000-memory.dmp

                      memory/2736-124-0x0000000000400000-0x0000000000641000-memory.dmp

                      memory/2736-111-0x0000000000400000-0x0000000000641000-memory.dmp

                      memory/2736-109-0x0000000000400000-0x0000000000641000-memory.dmp

                      memory/4532-94-0x0000000000400000-0x000000000044C000-memory.dmp

                      memory/4532-97-0x0000000000400000-0x000000000044C000-memory.dmp

                      memory/4532-91-0x0000000000400000-0x000000000044C000-memory.dmp

                      memory/4532-96-0x0000000000400000-0x000000000044C000-memory.dmp