Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/09/2024, 04:58

General

  • Target
    file.exe
  • Size 326KB
  • Sample240930-fltqystdqc
  • SHA256 2b8bcd9d7d072feb114e0436dc10aa80fda52cdd46a4948ea1ae984f74898375
  • 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
  • 11

Botnet
  • a669a86f8433a1e88901711c0f772c97

C2
  • https://t.me/jamsemlg

  • 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

Extracted

Family
  • lumma

C2
  • https://possiwreeste.site/api

  • https://underlinemdsj.site/api

  • https://chaptermusu.store/api

Signatures

  • Detect Vidar Stealer 16 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.

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Executes dropped EXE 7 IoCs
  • Loads dropped DLL 6 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
  • 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 8 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 22 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 10 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 24 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:5012
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
        PID:4816
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        2⤵
          PID:3200
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          2⤵
            PID:4864
          • 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:1192
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\AdminAEBAKJDGHI.exe"
              3⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:3312
              • C:\Users\AdminAEBAKJDGHI.exe
                "C:\Users\AdminAEBAKJDGHI.exe"
                4⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • System Location Discovery: System Language Discovery
                • Suspicious use of WriteProcessMemory
                PID:3704
                • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                  5⤵
                    PID:3632
                  • 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:2380
                    • C:\ProgramData\FBGCAAAAFB.exe
                      "C:\ProgramData\FBGCAAAAFB.exe"
                      6⤵
                      • Executes dropped EXE
                      • Suspicious use of SetThreadContext
                      • System Location Discovery: System Language Discovery
                      • Suspicious use of WriteProcessMemory
                      PID:2920
                      • 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:624
                    • C:\ProgramData\AEBAKJDGHI.exe
                      "C:\ProgramData\AEBAKJDGHI.exe"
                      6⤵
                      • Executes dropped EXE
                      • Suspicious use of SetThreadContext
                      • System Location Discovery: System Language Discovery
                      PID:1732
                      • 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
                        • Checks processor information in registry
                        • Suspicious behavior: EnumeratesProcesses
                        PID:2752
                    • C:\ProgramData\JJDBAEHIJK.exe
                      "C:\ProgramData\JJDBAEHIJK.exe"
                      6⤵
                      • Executes dropped EXE
                      • Suspicious use of SetThreadContext
                      • System Location Discovery: System Language Discovery
                      PID:1108
                      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                        7⤵
                        • Checks computer location settings
                        • Loads dropped DLL
                        • System Location Discovery: System Language Discovery
                        • Checks processor information in registry
                        • Suspicious behavior: EnumeratesProcesses
                        PID:2972
                        • C:\Windows\SysWOW64\cmd.exe
                          "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\AdminIDAEHCFHJJ.exe"
                          8⤵
                          • System Location Discovery: System Language Discovery
                          PID:1120
                          • C:\Users\AdminIDAEHCFHJJ.exe
                            "C:\Users\AdminIDAEHCFHJJ.exe"
                            9⤵
                            • Executes dropped EXE
                            • Suspicious use of SetThreadContext
                            • System Location Discovery: System Language Discovery
                            PID:2756
                            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                              10⤵
                              • System Location Discovery: System Language Discovery
                              • Checks processor information in registry
                              • Suspicious behavior: EnumeratesProcesses
                              PID:4572
                        • C:\Windows\SysWOW64\cmd.exe
                          "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\AdminKKJDGDHIDB.exe"
                          8⤵
                          • System Location Discovery: System Language Discovery
                          PID:3136
                          • C:\Users\AdminKKJDGDHIDB.exe
                            "C:\Users\AdminKKJDGDHIDB.exe"
                            9⤵
                            • Executes dropped EXE
                            • Suspicious use of SetThreadContext
                            • System Location Discovery: System Language Discovery
                            PID:3796
                            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                              10⤵
                                PID:3716
                              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                                "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                                10⤵
                                • System Location Discovery: System Language Discovery
                                PID:2848
                      • C:\Windows\SysWOW64\cmd.exe
                        "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\DAECFIJDAAAK" & exit
                        6⤵
                        • System Location Discovery: System Language Discovery
                        PID:1504
                        • C:\Windows\SysWOW64\timeout.exe
                          timeout /t 10
                          7⤵
                          • System Location Discovery: System Language Discovery
                          • Delays execution with timeout.exe
                          PID:1764
                • C:\Windows\SysWOW64\cmd.exe
                  "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\AdminFBKECFIIEH.exe"
                  3⤵
                  • System Location Discovery: System Language Discovery
                  • Suspicious use of WriteProcessMemory
                  PID:3588
                  • C:\Users\AdminFBKECFIIEH.exe
                    "C:\Users\AdminFBKECFIIEH.exe"
                    4⤵
                    • Executes dropped EXE
                    • Suspicious use of SetThreadContext
                    • System Location Discovery: System Language Discovery
                    • Suspicious use of WriteProcessMemory
                    PID:4612
                    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                      5⤵
                        PID:2728
                      • 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:3968

              Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

                    AECFCAAECBGDGDHIEHJE

                    • Path C:\ProgramData\AECFCAAECBGDGDHIEHJE
                    • Size 48KB
                    • SHA256 c9fd7be4579e4aa942e8c2b44ab10115fa6c2fe6afd0c584865413d9d53f3b2a
                    • MD5 SHA1 SHA512 SSDEEP

                    AECFCA

                    • Path C:\ProgramData\DAECFIJDAAAK\AECFCA
                    • Size 114KB
                    • SHA256 a793f3d212f395bfc8973231a22a6013c0e334443aa4172a8b5d611bb0f378a7
                    • MD5 SHA1 SHA512 SSDEEP

                    DGCFHI

                    • Path C:\ProgramData\DAECFIJDAAAK\DGCFHI
                    • Size 11KB
                    • SHA256 c521816d1e04b24819f556f77d1a3aa932ffe537d50ab1ffc1ea1dc243839620
                    • MD5 SHA1 SHA512 SSDEEP

                    HJJKFB

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

                    EGDBFIIECBGDGDGDHCAKKFBFIE

                    • Path C:\ProgramData\EGDBFIIECBGDGDGDHCAKKFBFIE
                    • Size 20KB
                    • SHA256 d76e7512e496b7c8d9fcd3010a55e2e566881dc6dacaf0343652a4915d47829f
                    • MD5 SHA1 SHA512 SSDEEP

                    AAAAAA

                    • Path C:\ProgramData\FBKECFIIEHCF\AAAAAA
                    • Size 160KB
                    • SHA256 e187946249cd390a3c1cf5d4e3b0d8f554f9acdc416bf4e7111fff217bb08855
                    • MD5 SHA1 SHA512 SSDEEP

                    AAAAAA

                    • Path C:\ProgramData\FBKECFIIEHCF\AAAAAA
                    • Size 40KB
                    • SHA256 42aad7886965428a941508b776a666a4450eb658cb90e80fae1e7457fc71f914
                    • MD5 SHA1 SHA512 SSDEEP

                    CBKJJE

                    • Path C:\ProgramData\FBKECFIIEHCF\CBKJJE
                    • Size 20KB
                    • SHA256 ccd15f9c7a997ae2b5320ea856c7efc54b5055254d41a443d21a60c39c565cb7
                    • MD5 SHA1 SHA512 SSDEEP

                    JJDBAEHIJK.exe

                    • Path C:\ProgramData\JJDBAEHIJK.exe
                    • Size 326KB
                    • SHA256 2b8bcd9d7d072feb114e0436dc10aa80fda52cdd46a4948ea1ae984f74898375
                    • 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

                    AdminAEBAKJDGHI.exe

                    • Path C:\Users\AdminAEBAKJDGHI.exe
                    • Size 404KB
                    • SHA256 de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89
                    • MD5 SHA1 SHA512 SSDEEP

                    AdminFBKECFIIEH.exe

                    • Path C:\Users\AdminFBKECFIIEH.exe
                    • Size 371KB
                    • SHA256 f1fa2872fcd33c6dbce8d974c0c0381c0762d46a53ceaca14a29727ad02baef3
                    • MD5 SHA1 SHA512 SSDEEP

                    AEBAKJDGHI.exe.log

                    • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\AEBAKJDGHI.exe.log
                    • Size 425B
                    • SHA256 34ba0ab8d1850e7825763f413142a333ccbc05fa2b5499a28a7d27b8a1c5b4bb
                    • MD5 SHA1 SHA512

                    sql[1].dll

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\3HDB1LPD\sql[1].dll
                    • Size 2.3MB
                    • SHA256 036a57102385d7f0d7b2deacf932c1c372ae30d924365b7a88f8a26657dd7550
                    • MD5 SHA1 SHA512 SSDEEP

                    memory/1192-271-0x0000000000400000-0x0000000000661000-memory.dmp

                    memory/1192-9-0x0000000061E00000-0x0000000061EF3000-memory.dmp

                    memory/1192-7-0x0000000000400000-0x0000000000661000-memory.dmp

                    memory/1192-122-0x0000000000400000-0x0000000000661000-memory.dmp

                    memory/1192-8-0x0000000000400000-0x0000000000661000-memory.dmp

                    memory/1192-3-0x0000000000400000-0x0000000000661000-memory.dmp

                    memory/2380-138-0x0000000000400000-0x0000000000676000-memory.dmp

                    memory/2380-194-0x0000000000400000-0x0000000000676000-memory.dmp

                    memory/2380-155-0x0000000000400000-0x0000000000676000-memory.dmp

                    memory/2380-93-0x0000000000400000-0x0000000000676000-memory.dmp

                    memory/2380-156-0x0000000000400000-0x0000000000676000-memory.dmp

                    memory/2380-124-0x0000000022120000-0x000000002237F000-memory.dmp

                    memory/2380-185-0x0000000000400000-0x0000000000676000-memory.dmp

                    memory/2380-121-0x0000000000400000-0x0000000000676000-memory.dmp

                    memory/2380-120-0x0000000000400000-0x0000000000676000-memory.dmp

                    memory/2380-95-0x0000000000400000-0x0000000000676000-memory.dmp

                    memory/2380-186-0x0000000000400000-0x0000000000676000-memory.dmp

                    memory/2380-97-0x0000000000400000-0x0000000000676000-memory.dmp

                    memory/2380-193-0x0000000000400000-0x0000000000676000-memory.dmp

                    memory/2380-139-0x0000000000400000-0x0000000000676000-memory.dmp

                    memory/2752-255-0x000000001FCD0000-0x000000001FF2F000-memory.dmp

                    memory/2752-252-0x0000000000400000-0x0000000000676000-memory.dmp

                    memory/2752-253-0x0000000000400000-0x0000000000676000-memory.dmp

                    memory/2752-269-0x0000000000400000-0x0000000000676000-memory.dmp

                    memory/3704-87-0x00000000731BE000-0x00000000731BF000-memory.dmp

                    memory/3704-88-0x0000000000D00000-0x0000000000D6A000-memory.dmp

                    memory/3968-111-0x0000000000400000-0x0000000000463000-memory.dmp

                    memory/3968-109-0x0000000000400000-0x0000000000463000-memory.dmp

                    memory/3968-105-0x0000000000400000-0x0000000000463000-memory.dmp

                    memory/4612-103-0x0000000000890000-0x00000000008F0000-memory.dmp

                    memory/5012-0-0x00000000751DE000-0x00000000751DF000-memory.dmp

                    memory/5012-5-0x00000000751D0000-0x0000000075980000-memory.dmp

                    memory/5012-119-0x00000000751D0000-0x0000000075980000-memory.dmp

                    memory/5012-1-0x0000000000CE0000-0x0000000000D36000-memory.dmp