Analysis

  • max time kernel
    96s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/09/2024, 04:35

General

  • Target
    file.exe
  • Size 216KB
  • Sample240919-e7nlds1dra
  • SHA256 d63d18c67f83e54c77072aa953c5e5c0496a7a4c2ac6ca8bd07e211ee80b3d6c
  • 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/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

Signatures

  • Detect Vidar Stealer 17 IoCs
  • 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 4 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 5 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 14 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 6 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 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:1784
    • 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:2216
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\AdminIJDBGDGCGD.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1356
        • C:\Users\AdminIJDBGDGCGD.exe
          "C:\Users\AdminIJDBGDGCGD.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2440
          • 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:3324
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\AdminGCFCFCGCGI.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:740
        • C:\Users\AdminGCFCFCGCGI.exe
          "C:\Users\AdminGCFCFCGCGI.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:912
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
            5⤵
              PID:2808
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
              5⤵
                PID:4124
              • 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:1712
                • C:\ProgramData\AKKKFBGDHJ.exe
                  "C:\ProgramData\AKKKFBGDHJ.exe"
                  6⤵
                  • Executes dropped EXE
                  • Suspicious use of SetThreadContext
                  • System Location Discovery: System Language Discovery
                  • Suspicious use of WriteProcessMemory
                  PID:4180
                  • 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:3564
                • C:\ProgramData\KFIEHIIIJD.exe
                  "C:\ProgramData\KFIEHIIIJD.exe"
                  6⤵
                  • Executes dropped EXE
                  • Suspicious use of SetThreadContext
                  • System Location Discovery: System Language Discovery
                  • Suspicious use of WriteProcessMemory
                  PID:1920
                  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                    7⤵
                      PID:876
                    • 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:4736
                  • C:\Windows\SysWOW64\cmd.exe
                    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\ECAFHDBGHJKF" & exit
                    6⤵
                    • System Location Discovery: System Language Discovery
                    PID:1496
                    • C:\Windows\SysWOW64\timeout.exe
                      timeout /t 10
                      7⤵
                      • System Location Discovery: System Language Discovery
                      • Delays execution with timeout.exe
                      PID:3600

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              CGDBGC

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

              HDGCGH

              • Path C:\ProgramData\ECAFHDBGHJKF\HDGCGH
              • Size 114KB
              • SHA256 2d0e57c642cc32f10e77a73015075c2d03276dd58689944b01139b2bde8a62a1
              • MD5 SHA1 SHA512 SSDEEP

              IJDBGD

              • Path C:\ProgramData\ECAFHDBGHJKF\IJDBGD
              • Size 11KB
              • SHA256 2cf3d6c393eefd795d52db6ffe2f7254f92146aa30b194fbb84d8aa4faf4e585
              • MD5 SHA1 SHA512 SSDEEP

              CBAFID

              • Path C:\ProgramData\JJDHIDBFBFHI\CBAFID
              • Size 20KB
              • SHA256 ccd15f9c7a997ae2b5320ea856c7efc54b5055254d41a443d21a60c39c565cb7
              • MD5 SHA1 SHA512 SSDEEP

              CBAFID

              • Path C:\ProgramData\JJDHIDBFBFHI\CBAFID
              • Size 160KB
              • SHA256 e187946249cd390a3c1cf5d4e3b0d8f554f9acdc416bf4e7111fff217bb08855
              • MD5 SHA1 SHA512 SSDEEP

              ECAFHD

              • Path C:\ProgramData\JJDHIDBFBFHI\ECAFHD
              • Size 40KB
              • SHA256 42aad7886965428a941508b776a666a4450eb658cb90e80fae1e7457fc71f914
              • 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

              AdminGCFCFCGCGI.exe

              • Path C:\Users\AdminGCFCFCGCGI.exe
              • Size 293KB
              • SHA256 6f8b44c727d44c82461e3e33098a1d93517bd200c4489120914f34e22715309c
              • MD5 SHA1 SHA512 SSDEEP

              AdminIJDBGDGCGD.exe

              • Path C:\Users\AdminIJDBGDGCGD.exe
              • Size 355KB
              • SHA256 d0285d1ff85d7ef17ce9e3c0b185bd93624d6fde47a2cf0ec99a8cfd4a7afb0d
              • MD5 SHA1 SHA512 SSDEEP

              103621DE9CD5414CC2538780B4B75751

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

              156887258BBD6E1FEF562837733EA04E_5BBC02CEDFD3F7AC9E268D830CF231EE

              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\156887258BBD6E1FEF562837733EA04E_5BBC02CEDFD3F7AC9E268D830CF231EE
              • Size 2KB
              • SHA256 ac4301cf80e1320cc836f85d90d28221a50ec57e6129b195acf0cb00df5d18b2
              • MD5 SHA1 SHA512

              223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771

              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771
              • Size 2KB
              • SHA256 e6548a38d5a516be84c393b45ce4a1577e4bbd6bb40aad980237037fe0e5a740
              • MD5 SHA1 SHA512

              EB2C4AB8B68FFA4B7733A9139239A396_D76DB901EE986B889F30D8CC06229E2D

              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\EB2C4AB8B68FFA4B7733A9139239A396_D76DB901EE986B889F30D8CC06229E2D
              • Size 1KB
              • SHA256 42f8b46499f0f8fd94833336b4bdc1e908cb2b6b719d72229764bef52b80a6d6
              • MD5 SHA1 SHA512

              F0DE068383AE2420BC8A7F145640D9D9

              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\F0DE068383AE2420BC8A7F145640D9D9
              • Size 504B
              • SHA256 b6a65f0474d64d62801ee284c91e656eba15773d9a5cd12587a3564c9ed6439f
              • MD5 SHA1 SHA512

              103621DE9CD5414CC2538780B4B75751

              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\103621DE9CD5414CC2538780B4B75751
              • Size 192B
              • SHA256 d097e47af24c82cfd93b15114e4af61a40138138aed6ca812ee1b137af888a93
              • MD5 SHA1 SHA512

              156887258BBD6E1FEF562837733EA04E_5BBC02CEDFD3F7AC9E268D830CF231EE

              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\156887258BBD6E1FEF562837733EA04E_5BBC02CEDFD3F7AC9E268D830CF231EE
              • Size 458B
              • SHA256 baa9cb87b7f8c2ab96ae302242988070b31dcbdfb1ad54e6e758a5788c9fa991
              • MD5 SHA1 SHA512

              223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771

              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771
              • Size 450B
              • SHA256 08dfea192462aeb9a6f57988adbf2b4a6c9d35036327a91160f8c834b4952861
              • MD5 SHA1 SHA512

              EB2C4AB8B68FFA4B7733A9139239A396_D76DB901EE986B889F30D8CC06229E2D

              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\EB2C4AB8B68FFA4B7733A9139239A396_D76DB901EE986B889F30D8CC06229E2D
              • Size 458B
              • SHA256 9b7350296b45a00eff693f50e5ed42e32d99313843ae56d9d378f39b3d4a7964
              • MD5 SHA1 SHA512

              F0DE068383AE2420BC8A7F145640D9D9

              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\F0DE068383AE2420BC8A7F145640D9D9
              • Size 550B
              • SHA256 22bc30094df2f9160663b645dfdbe0b6a8c1bb07c0827bc47128256f12b965b3
              • MD5 SHA1 SHA512

              KFIEHIIIJD.exe.log

              • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\KFIEHIIIJD.exe.log
              • Size 42B
              • SHA256 d8988d672d6915b46946b28c06ad8066c50041f6152a91d37ffa5cf129cc146b
              • MD5 SHA1 SHA512

              memory/912-113-0x0000000000B30000-0x0000000000B7A000-memory.dmp

              memory/1712-207-0x0000000000400000-0x0000000000657000-memory.dmp

              memory/1712-199-0x0000000000400000-0x0000000000657000-memory.dmp

              memory/1712-137-0x0000000022930000-0x0000000022B8F000-memory.dmp

              memory/1712-150-0x0000000000400000-0x0000000000657000-memory.dmp

              memory/1712-151-0x0000000000400000-0x0000000000657000-memory.dmp

              memory/1712-120-0x0000000000400000-0x0000000000657000-memory.dmp

              memory/1712-167-0x0000000000400000-0x0000000000657000-memory.dmp

              memory/1712-116-0x0000000000400000-0x0000000000657000-memory.dmp

              memory/1712-168-0x0000000000400000-0x0000000000657000-memory.dmp

              memory/1712-135-0x0000000000400000-0x0000000000657000-memory.dmp

              memory/1712-134-0x0000000000400000-0x0000000000657000-memory.dmp

              memory/1712-118-0x0000000000400000-0x0000000000657000-memory.dmp

              memory/1712-206-0x0000000000400000-0x0000000000657000-memory.dmp

              memory/1712-198-0x0000000000400000-0x0000000000657000-memory.dmp

              memory/1784-9-0x00000000743D0000-0x0000000074B80000-memory.dmp

              memory/1784-0-0x00000000743DE000-0x00000000743DF000-memory.dmp

              memory/1784-1-0x0000000000650000-0x0000000000688000-memory.dmp

              memory/1784-2-0x00000000743D0000-0x0000000074B80000-memory.dmp

              memory/1784-8-0x00000000743D0000-0x0000000074B80000-memory.dmp

              memory/2216-12-0x0000000061E00000-0x0000000061EF3000-memory.dmp

              memory/2216-10-0x0000000000400000-0x0000000000643000-memory.dmp

              memory/2216-96-0x0000000000400000-0x0000000000643000-memory.dmp

              memory/2216-4-0x0000000000400000-0x0000000000643000-memory.dmp

              memory/2216-7-0x0000000000400000-0x0000000000643000-memory.dmp

              memory/2216-114-0x0000000000400000-0x0000000000643000-memory.dmp

              memory/2440-105-0x0000000071F20000-0x00000000726D0000-memory.dmp

              memory/2440-98-0x0000000071F20000-0x00000000726D0000-memory.dmp

              memory/2440-97-0x0000000071F2E000-0x0000000071F2F000-memory.dmp

              memory/2440-95-0x0000000000220000-0x000000000027A000-memory.dmp

              memory/3324-103-0x0000000000400000-0x000000000045D000-memory.dmp

              memory/3324-100-0x0000000000400000-0x000000000045D000-memory.dmp

              memory/3324-106-0x0000000000400000-0x000000000045D000-memory.dmp

              memory/3564-230-0x0000000000400000-0x000000000045D000-memory.dmp

              memory/4736-258-0x0000000000400000-0x0000000000657000-memory.dmp

              memory/4736-259-0x0000000000400000-0x0000000000657000-memory.dmp

              memory/4736-260-0x0000000022300000-0x000000002255F000-memory.dmp

              memory/4736-274-0x0000000000400000-0x0000000000657000-memory.dmp

              memory/4736-275-0x0000000000400000-0x0000000000657000-memory.dmp