Analysis

  • max time kernel
    114s
  • 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
    10/09/2024, 17:14

General

  • Target
    file.exe
  • Size 205KB
  • Sample240910-vrzaysweqa
  • SHA256 daf4e8849a3b6011bff41cc2c7decee8c769a4ebf2be3d7316930f40448ddb25
  • 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

C2
  • https://t.me/fneogr

  • https://t.me/edm0d

  • https://steamcommunity.com/profiles/76561199768374681

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36 OPR/110.0.0.0

Extracted

Family
  • lumma

C2
  • https://complainnykso.shop/api

  • https://preachstrwnwjw.shop/api

  • https://basedsymsotp.shop/api

  • https://charistmatwio.shop/api

  • https://grassemenwji.shop/api

  • https://ignoracndwko.shop/api

  • https://stitchmiscpaew.shop/api

  • https://commisionipwn.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.

  • 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).

  • System Location Discovery: System Language Discovery 1 TTPs 10 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 10 IoCs
  • Suspicious use of WriteProcessMemory 59 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:2072
    • 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:3624
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\AdminCFCBFHJECA.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4736
        • C:\Users\AdminCFCBFHJECA.exe
          "C:\Users\AdminCFCBFHJECA.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:4512
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
            5⤵
              PID:1684
            • 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:1580
              • C:\ProgramData\JKJDAEBFCB.exe
                "C:\ProgramData\JKJDAEBFCB.exe"
                6⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • System Location Discovery: System Language Discovery
                • Suspicious use of WriteProcessMemory
                PID:3428
                • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                  7⤵
                    PID:1572
                  • 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:3828
                • C:\ProgramData\IDHIEGIIIE.exe
                  "C:\ProgramData\IDHIEGIIIE.exe"
                  6⤵
                    PID:4080
                    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                      7⤵
                        PID:5028
                    • C:\Windows\SysWOW64\cmd.exe
                      "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\FIIECFHDBAAE" & exit
                      6⤵
                        PID:5044
                        • C:\Windows\SysWOW64\timeout.exe
                          timeout /t 10
                          7⤵
                          • Delays execution with timeout.exe
                          PID:4196
                • C:\Windows\SysWOW64\cmd.exe
                  "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\AdminKJDHCAFCGD.exe"
                  3⤵
                  • System Location Discovery: System Language Discovery
                  • Suspicious use of WriteProcessMemory
                  PID:64
                  • C:\Users\AdminKJDHCAFCGD.exe
                    "C:\Users\AdminKJDHCAFCGD.exe"
                    4⤵
                    • Executes dropped EXE
                    • Suspicious use of SetThreadContext
                    • System Location Discovery: System Language Discovery
                    • Suspicious use of WriteProcessMemory
                    PID:3164
                    • 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:2404

            Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  GIJJKK

                  • Path C:\ProgramData\AKEGHIJJEHJD\GIJJKK
                  • Size 20KB
                  • SHA256 ccd15f9c7a997ae2b5320ea856c7efc54b5055254d41a443d21a60c39c565cb7
                  • MD5 SHA1 SHA512 SSDEEP

                  GIJJKK

                  • Path C:\ProgramData\AKEGHIJJEHJD\GIJJKK
                  • Size 160KB
                  • SHA256 e187946249cd390a3c1cf5d4e3b0d8f554f9acdc416bf4e7111fff217bb08855
                  • MD5 SHA1 SHA512 SSDEEP

                  GIJJKK

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

                  FBAKEH

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

                  HJJEGI

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

                  IIJDBG

                  • Path C:\ProgramData\FIIECFHDBAAE\IIJDBG
                  • Size 11KB
                  • SHA256 612d581ae07cfae4fbe83ace5a2b51500aad91add698e64cf251bbc8e1b21c05
                  • 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

                  AdminCFCBFHJECA.exe

                  • Path C:\Users\AdminCFCBFHJECA.exe
                  • Size 283KB
                  • SHA256 8eb8822fcff05d89036329669bd654ca07ac68acbe7266d62223e2b5ad9eb67b
                  • MD5 SHA1 SHA512 SSDEEP

                  AdminKJDHCAFCGD.exe

                  • Path C:\Users\AdminKJDHCAFCGD.exe
                  • Size 321KB
                  • SHA256 e411128093d3247f7a4ffade6252146784262d6d8647143ac8dd2157499f3b82
                  • MD5 SHA1 SHA512 SSDEEP

                  103621DE9CD5414CC2538780B4B75751

                  • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\103621DE9CD5414CC2538780B4B75751
                  • Size 717B
                  • SHA256 af2343382b88335eea72251ad84949e244ff54b6995063e24459a7216e9576b9
                  • MD5 SHA1 SHA512

                  103621DE9CD5414CC2538780B4B75751

                  • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\103621DE9CD5414CC2538780B4B75751
                  • Size 192B
                  • SHA256 68b59f3ba0f67829471c1d21ca6ebc179c51a8b6e0ece530d3f9425ad433b5ed
                  • MD5 SHA1 SHA512

                  IDHIEGIIIE.exe.log

                  • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\IDHIEGIIIE.exe.log
                  • Size 226B
                  • SHA256 7e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d
                  • MD5 SHA1 SHA512

                  sql[1].dll

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\2VX66VOV\sql[1].dll
                  • Size 2.3MB
                  • SHA256 036a57102385d7f0d7b2deacf932c1c372ae30d924365b7a88f8a26657dd7550
                  • MD5 SHA1 SHA512 SSDEEP

                  memory/1580-123-0x00000000224B0000-0x000000002270F000-memory.dmp

                  memory/1580-192-0x0000000000400000-0x0000000000657000-memory.dmp

                  memory/1580-200-0x0000000000400000-0x0000000000657000-memory.dmp

                  memory/1580-199-0x0000000000400000-0x0000000000657000-memory.dmp

                  memory/1580-243-0x0000000000400000-0x0000000000657000-memory.dmp

                  memory/1580-191-0x0000000000400000-0x0000000000657000-memory.dmp

                  memory/1580-118-0x0000000000400000-0x0000000000657000-memory.dmp

                  memory/1580-119-0x0000000000400000-0x0000000000657000-memory.dmp

                  memory/1580-95-0x0000000000400000-0x0000000000657000-memory.dmp

                  memory/1580-121-0x0000000000400000-0x0000000000657000-memory.dmp

                  memory/1580-98-0x0000000000400000-0x0000000000657000-memory.dmp

                  memory/1580-137-0x0000000000400000-0x0000000000657000-memory.dmp

                  memory/1580-138-0x0000000000400000-0x0000000000657000-memory.dmp

                  memory/1580-103-0x0000000000400000-0x0000000000657000-memory.dmp

                  memory/1580-154-0x0000000000400000-0x0000000000657000-memory.dmp

                  memory/1580-155-0x0000000000400000-0x0000000000657000-memory.dmp

                  memory/2072-0-0x000000007491E000-0x000000007491F000-memory.dmp

                  memory/2072-1-0x0000000000270000-0x00000000002A8000-memory.dmp

                  memory/2072-7-0x0000000074910000-0x00000000750C0000-memory.dmp

                  memory/2072-57-0x0000000074910000-0x00000000750C0000-memory.dmp

                  memory/2404-116-0x0000000000400000-0x0000000000458000-memory.dmp

                  memory/2404-114-0x0000000000400000-0x0000000000458000-memory.dmp

                  memory/2404-112-0x0000000000400000-0x0000000000458000-memory.dmp

                  memory/3164-110-0x0000000000970000-0x00000000009C4000-memory.dmp

                  memory/3624-6-0x0000000000400000-0x0000000000643000-memory.dmp

                  memory/3624-58-0x0000000000400000-0x0000000000643000-memory.dmp

                  memory/3624-117-0x0000000000400000-0x0000000000643000-memory.dmp

                  memory/3624-9-0x0000000061E00000-0x0000000061EF3000-memory.dmp

                  memory/3624-8-0x0000000000400000-0x0000000000643000-memory.dmp

                  memory/3624-3-0x0000000000400000-0x0000000000643000-memory.dmp

                  memory/3828-221-0x0000000000400000-0x0000000000657000-memory.dmp

                  memory/3828-244-0x0000000000400000-0x0000000000657000-memory.dmp

                  memory/3828-245-0x0000000000400000-0x0000000000657000-memory.dmp

                  memory/3828-247-0x0000000022580000-0x00000000227DF000-memory.dmp

                  memory/3828-261-0x0000000000400000-0x0000000000657000-memory.dmp

                  memory/3828-262-0x0000000000400000-0x0000000000657000-memory.dmp

                  memory/4512-92-0x0000000071E5E000-0x0000000071E5F000-memory.dmp

                  memory/4512-93-0x0000000000A60000-0x0000000000AAA000-memory.dmp

                  memory/4512-102-0x0000000071E50000-0x0000000072600000-memory.dmp

                  memory/4512-120-0x0000000071E50000-0x0000000072600000-memory.dmp