Resubmissions

03/10/2024, 20:46

241003-zklthazamd10

02/10/2024, 15:16

241002-snmfwawhqd10

01/10/2024, 01:49

241001-b8w3davemp10

Analysis

  • max time kernel
    94s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/10/2024, 01:49

General

  • Target
    de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe
  • Size 404KB
  • Sample241001-b8w3davemp
  • SHA256 de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

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
  • vidar

Version
  • 11

Botnet
  • 8b4d47586874b08947203f03e4db3962

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
  • stealc

Botnet
  • default

C2
  • http://46.8.231.109

Attributes
  • url_path

    /c4754d4f680ead72.php

Extracted

Family
  • lumma

C2
  • https://underlinemdsj.site/api

  • https://offeviablwke.site/api

Signatures

  • Detect Vidar Stealer 22 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 2 IoCs

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

  • Executes dropped EXE 5 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 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 6 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 16 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 8 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe
    "C:\Users\Admin\AppData\Local\Temp\de664956d799e59e1cca0788d545922ee420e3afdcf277442f148f52bc78df89.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4420
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
        PID:4640
      • 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:1600
        • C:\ProgramData\EBKEHJJDAA.exe
          "C:\ProgramData\EBKEHJJDAA.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:396
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
            4⤵
              PID:1464
            • 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
              PID:1820
          • C:\ProgramData\IECBGIDAEH.exe
            "C:\ProgramData\IECBGIDAEH.exe"
            3⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:1736
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
              4⤵
                PID:3000
              • 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
                • Checks processor information in registry
                • Suspicious behavior: EnumeratesProcesses
                PID:1068
            • C:\ProgramData\GHDHJEBFBF.exe
              "C:\ProgramData\GHDHJEBFBF.exe"
              3⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:720
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                4⤵
                • 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:4620
                • C:\Windows\SysWOW64\cmd.exe
                  "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\AdminHIIDGCGCBF.exe"
                  5⤵
                  • System Location Discovery: System Language Discovery
                  PID:3212
                  • C:\Users\AdminHIIDGCGCBF.exe
                    "C:\Users\AdminHIIDGCGCBF.exe"
                    6⤵
                    • Executes dropped EXE
                    • Suspicious use of SetThreadContext
                    • System Location Discovery: System Language Discovery
                    PID:2236
                    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                      7⤵
                        PID:1676
                      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                        7⤵
                          PID:3636
                        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                          7⤵
                            PID:1904
                          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                            7⤵
                              PID:1560
                            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                              7⤵
                                PID:3128
                              • 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:4724
                          • C:\Windows\SysWOW64\cmd.exe
                            "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\AdminGHDHJEBFBF.exe"
                            5⤵
                            • System Location Discovery: System Language Discovery
                            PID:3288
                            • C:\Users\AdminGHDHJEBFBF.exe
                              "C:\Users\AdminGHDHJEBFBF.exe"
                              6⤵
                              • Executes dropped EXE
                              • Suspicious use of SetThreadContext
                              • System Location Discovery: System Language Discovery
                              PID:400
                              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                                "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                                7⤵
                                  PID:1396
                                • 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:4840
                        • C:\Windows\SysWOW64\cmd.exe
                          "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\CAEHJEBKFCAK" & exit
                          3⤵
                          • System Location Discovery: System Language Discovery
                          • Suspicious use of WriteProcessMemory
                          PID:392
                          • C:\Windows\SysWOW64\timeout.exe
                            timeout /t 10
                            4⤵
                            • System Location Discovery: System Language Discovery
                            • Delays execution with timeout.exe
                            PID:4784

                    Network

                          MITRE ATT&CK Enterprise v15

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          HDAFBG

                          • Path C:\ProgramData\AEBKKECBGIIJ\HDAFBG
                          • Size 20KB
                          • SHA256 ccd15f9c7a997ae2b5320ea856c7efc54b5055254d41a443d21a60c39c565cb7
                          • MD5 SHA1 SHA512 SSDEEP

                          JECGII

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

                          JECGII

                          • Path C:\ProgramData\AEBKKECBGIIJ\JECGII
                          • Size 160KB
                          • SHA256 e187946249cd390a3c1cf5d4e3b0d8f554f9acdc416bf4e7111fff217bb08855
                          • MD5 SHA1 SHA512 SSDEEP

                          EBGIDGCA

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

                          EBKEHJJDAA.exe

                          • Path C:\ProgramData\EBKEHJJDAA.exe
                          • Size 372KB
                          • SHA256 af60c2dd60ece7f8e83870b22b1c5c0e095c9c3669171c16eaaff406cda6eeb2
                          • MD5 SHA1 SHA512 SSDEEP

                          GHDHJEBFBF.exe

                          • Path C:\ProgramData\GHDHJEBFBF.exe
                          • Size 327KB
                          • SHA256 2280a0c18708cb5fd0e093e2f42350e3afb8f3ca31fd3279fc797a6c535532ef
                          • MD5 SHA1 SHA512 SSDEEP

                          IECBGIDAEH.exe

                          • Path C:\ProgramData\IECBGIDAEH.exe
                          • Size 404KB
                          • SHA256 00c39991e9994d94f4fc657f7072c7e4137baf5aa27961cf5451daf6b3cda75a
                          • MD5 SHA1 SHA512 SSDEEP

                          KEHDBAEGIIIEBGCAAFHI

                          • Path C:\ProgramData\KEHDBAEGIIIEBGCAAFHI
                          • Size 11KB
                          • SHA256 d5f0477754533125a7a554372d1f164767e6032511c1dc7c6da2b2becedd47b0
                          • MD5 SHA1 SHA512 SSDEEP

                          KFIIJJJD

                          • Path C:\ProgramData\KFIIJJJD
                          • Size 114KB
                          • SHA256 4c407af4d5326d1ea43e89945eda0b86c81ad0d12bd5465b327c0fd1df56f7d4
                          • MD5 SHA1 SHA512 SSDEEP

                          mozglue.dll

                          • Path C:\ProgramData\mozglue.dll
                          • Size 10KB
                          • SHA256 6126b4308622feafb09603f7f438f03479cbec18249c4e15779c3e829fdef393
                          • 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 17KB
                          • SHA256 060e730081814ce2ab1389969c07917727da5ab0ab17a4d2e81bf651b9eb1f11
                          • MD5 SHA1 SHA512 SSDEEP

                          nss3.dll

                          • Path C:\ProgramData\nss3.dll
                          • Size 112KB
                          • SHA256 75941d72abfbd4b2d76c4a4b8a92405e10c253abee63a7a11b621594dab73676
                          • MD5 SHA1 SHA512 SSDEEP

                          nss3.dll

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

                          vcruntime140.dll

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

                          EDC238BFF48A31D55A97E1E93892934B_C31B2498754E340573F1336DE607D619

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\EDC238BFF48A31D55A97E1E93892934B_C31B2498754E340573F1336DE607D619
                          • Size 471B
                          • SHA256 b949b4e92e2803878a2b71476a58d2cbfd53c95ab7bb1583ce4e77398f135105
                          • MD5 SHA1 SHA512

                          EDC238BFF48A31D55A97E1E93892934B_C31B2498754E340573F1336DE607D619

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\EDC238BFF48A31D55A97E1E93892934B_C31B2498754E340573F1336DE607D619
                          • Size 400B
                          • SHA256 36a4999268d5b62ba16a04144c15c256880361d0463ac5bae5045071f805188d
                          • MD5 SHA1 SHA512

                          AdminHIIDGCGCBF.exe.log

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

                          76561199780418869[1].htm

                          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\68XY2BI1\76561199780418869[1].htm
                          • Size 33KB
                          • SHA256 2eb096864603076ca85b2d78463f4b4a82a0a36655f981fd2874c179c8e347e4
                          • MD5 SHA1 SHA512 SSDEEP

                          memory/396-125-0x0000000072220000-0x00000000729D0000-memory.dmp

                          memory/396-103-0x0000000000850000-0x00000000008B0000-memory.dmp

                          memory/396-104-0x0000000072220000-0x00000000729D0000-memory.dmp

                          memory/396-102-0x000000007222E000-0x000000007222F000-memory.dmp

                          memory/720-139-0x0000000000150000-0x00000000001A6000-memory.dmp

                          memory/1068-143-0x0000000000400000-0x0000000000676000-memory.dmp

                          memory/1068-259-0x0000000000400000-0x0000000000676000-memory.dmp

                          memory/1068-258-0x0000000000400000-0x0000000000676000-memory.dmp

                          memory/1068-244-0x0000000022920000-0x0000000022B7F000-memory.dmp

                          memory/1068-234-0x0000000000400000-0x0000000000676000-memory.dmp

                          memory/1068-230-0x0000000000400000-0x0000000000676000-memory.dmp

                          memory/1068-145-0x0000000000400000-0x0000000000676000-memory.dmp

                          memory/1068-141-0x0000000000400000-0x0000000000676000-memory.dmp

                          memory/1600-87-0x0000000000400000-0x0000000000676000-memory.dmp

                          memory/1600-78-0x0000000000400000-0x0000000000676000-memory.dmp

                          memory/1600-3-0x0000000000400000-0x0000000000676000-memory.dmp

                          memory/1600-8-0x0000000000400000-0x0000000000676000-memory.dmp

                          memory/1600-6-0x0000000000400000-0x0000000000676000-memory.dmp

                          memory/1600-86-0x0000000000400000-0x0000000000676000-memory.dmp

                          memory/1600-79-0x0000000000400000-0x0000000000676000-memory.dmp

                          memory/1600-13-0x0000000000400000-0x0000000000676000-memory.dmp

                          memory/1600-48-0x0000000000400000-0x0000000000676000-memory.dmp

                          memory/1600-47-0x0000000000400000-0x0000000000676000-memory.dmp

                          memory/1600-31-0x0000000000400000-0x0000000000676000-memory.dmp

                          memory/1600-30-0x0000000000400000-0x0000000000676000-memory.dmp

                          memory/1600-15-0x000000001FE20000-0x000000002007F000-memory.dmp

                          memory/1600-12-0x0000000000400000-0x0000000000676000-memory.dmp

                          memory/1736-118-0x00000000002F0000-0x0000000000358000-memory.dmp

                          memory/1820-122-0x0000000000400000-0x0000000000463000-memory.dmp

                          memory/1820-120-0x0000000000400000-0x0000000000463000-memory.dmp

                          memory/1820-124-0x0000000000400000-0x0000000000463000-memory.dmp

                          memory/4420-0-0x00000000748CE000-0x00000000748CF000-memory.dmp

                          memory/4420-11-0x00000000748C0000-0x0000000075070000-memory.dmp

                          memory/4420-91-0x00000000748C0000-0x0000000075070000-memory.dmp

                          memory/4420-1-0x0000000000D70000-0x0000000000DDA000-memory.dmp

                          memory/4620-156-0x0000000061E00000-0x0000000061EF3000-memory.dmp

                          memory/4620-149-0x0000000000400000-0x0000000000661000-memory.dmp

                          memory/4620-151-0x0000000000400000-0x0000000000661000-memory.dmp

                          memory/4724-278-0x0000000000400000-0x0000000000676000-memory.dmp

                          memory/4724-279-0x0000000000400000-0x0000000000676000-memory.dmp