Analysis

  • max time kernel
    23s
  • 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
    13/09/2024, 01:53

General

  • Target
    6b6b6dcf20260d92fbf0fd6cea9d4bdabf29e047af19ad026b58c4aaf448a67e.exe
  • Size 282KB
  • Sample240913-cbg3maydja
  • SHA256 6b6b6dcf20260d92fbf0fd6cea9d4bdabf29e047af19ad026b58c4aaf448a67e
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

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

Extracted

Family
  • stealc

Botnet
  • default

C2
  • http://46.8.231.109

Attributes
  • url_path

    /c4754d4f680ead72.php

Signatures

  • Detect Vidar Stealer 20 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 7 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 6 IoCs
  • Drops file in Program Files directory 2 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 18 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
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6b6b6dcf20260d92fbf0fd6cea9d4bdabf29e047af19ad026b58c4aaf448a67e.exe
    "C:\Users\Admin\AppData\Local\Temp\6b6b6dcf20260d92fbf0fd6cea9d4bdabf29e047af19ad026b58c4aaf448a67e.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4604
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
        PID:4956
      • 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
        • Modifies system certificate store
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:916
        • C:\ProgramData\AEHIJKKFHI.exe
          "C:\ProgramData\AEHIJKKFHI.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2552
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
            4⤵
            • Drops file in Program Files directory
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:1264
            • C:\Program Files\Google\Chrome\Application\FRRXIXYF3I64R.exe
              "C:\Program Files\Google\Chrome\Application\FRRXIXYF3I64R.exe"
              5⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              PID:1704
        • C:\ProgramData\HDAKFCGIJK.exe
          "C:\ProgramData\HDAKFCGIJK.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:3600
          • 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:3728
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\AdminFBKKFBAEGD.exe"
              5⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:3020
              • C:\Users\AdminFBKKFBAEGD.exe
                "C:\Users\AdminFBKKFBAEGD.exe"
                6⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • System Location Discovery: System Language Discovery
                PID:5036
                • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                  7⤵
                    PID:3976
                  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                    7⤵
                      PID:4620
                    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                      7⤵
                      • Drops file in Program Files directory
                      • System Location Discovery: System Language Discovery
                      PID:4008
                      • C:\Program Files\Google\Chrome\Application\PMOIEF1V.exe
                        "C:\Program Files\Google\Chrome\Application\PMOIEF1V.exe"
                        8⤵
                        • Executes dropped EXE
                        • System Location Discovery: System Language Discovery
                        PID:2608
                • C:\Windows\SysWOW64\cmd.exe
                  "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\AdminFHCBGIIJKE.exe"
                  5⤵
                  • System Location Discovery: System Language Discovery
                  PID:1728
                  • C:\Users\AdminFHCBGIIJKE.exe
                    "C:\Users\AdminFHCBGIIJKE.exe"
                    6⤵
                    • Executes dropped EXE
                    • Suspicious use of SetThreadContext
                    • System Location Discovery: System Language Discovery
                    PID:2788
                    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                      7⤵
                        PID:2584
                      • 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:60
              • C:\ProgramData\IEHDBGDHDA.exe
                "C:\ProgramData\IEHDBGDHDA.exe"
                3⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • System Location Discovery: System Language Discovery
                • Suspicious use of WriteProcessMemory
                PID:8
                • 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
                  • Suspicious behavior: EnumeratesProcesses
                  PID:2888
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\DGHIDHCAAKEC" & exit
                3⤵
                • System Location Discovery: System Language Discovery
                • Suspicious use of WriteProcessMemory
                PID:880
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 10
                  4⤵
                  • System Location Discovery: System Language Discovery
                  • Delays execution with timeout.exe
                  PID:2776

          Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                Downloads

                FRRXIXYF3I64R.exe

                • Path C:\Program Files\Google\Chrome\Application\FRRXIXYF3I64R.exe
                • Size 63KB
                • SHA256 c066aee7aa3aa83f763ebc5541daa266ed6c648fbffcde0d836a13b221bb2adc
                • MD5 SHA1 SHA512 SSDEEP

                AEHIJKKFHI.exe

                • Path C:\ProgramData\AEHIJKKFHI.exe
                • Size 328KB
                • SHA256 efe0690c0cc62906989a9e2bbc6e697046b093624e02e15d0e63ea7aa0186884
                • MD5 SHA1 SHA512 SSDEEP

                BAEHIEBGHDAFIEBGIEHJ

                • Path C:\ProgramData\BAEHIEBGHDAFIEBGIEHJ
                • Size 11KB
                • SHA256 bd82f4ad6922273d87d0c5871f8b2039bb6ade4fe4ec921467d1a425c00f610a
                • MD5 SHA1 SHA512 SSDEEP

                DGCBKECA

                • Path C:\ProgramData\DGCBKECA
                • Size 114KB
                • SHA256 02f65483e90802c728726ce1d16f2b405158f666c36e2c63090e27877ae4e309
                • MD5 SHA1 SHA512 SSDEEP

                HJJDGH

                • Path C:\ProgramData\DGCBKECAKFBG\HJJDGH
                • Size 160KB
                • SHA256 e187946249cd390a3c1cf5d4e3b0d8f554f9acdc416bf4e7111fff217bb08855
                • MD5 SHA1 SHA512 SSDEEP

                HJJDGH

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

                IJEBKK

                • Path C:\ProgramData\DGCBKECAKFBG\IJEBKK
                • Size 20KB
                • SHA256 ccd15f9c7a997ae2b5320ea856c7efc54b5055254d41a443d21a60c39c565cb7
                • MD5 SHA1 SHA512 SSDEEP

                DHDBGHCB

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

                HDAKFCGIJK.exe

                • Path C:\ProgramData\HDAKFCGIJK.exe
                • Size 206KB
                • SHA256 c98f17dd444209ad0a6d71221b67cd632bc6409686f750bb5118a7e42eca91e0
                • MD5 SHA1 SHA512 SSDEEP

                IEHDBGDHDA.exe

                • Path C:\ProgramData\IEHDBGDHDA.exe
                • Size 282KB
                • SHA256 fdf090545751ce09207f7cec140d21d246cb2f25002683e2cd36c92e18707f56
                • MD5 SHA1 SHA512 SSDEEP

                freebl3.dll

                • Path C:\ProgramData\freebl3.dll
                • Size 138KB
                • SHA256 dcc6a27055db89837eac8c51bb6bbd5f6f70c63daf6c90214ecc5b0155096d9c
                • 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 13KB
                • SHA256 edc0250d8dfe5b4049a64b6171d12ad701784f4650484d35315ab5286384e79e
                • 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 6KB
                • SHA256 adc2230fcbe96b2eb2dfc294ce283706afca83a802036bb2af31cd10d88c40a9
                • MD5 SHA1 SHA512 SSDEEP

                vcruntime140.dll

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

                0255CEC2C51D081EFF40366512890989_8A726233B0F9B64FE822B7A4065CB375

                • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\0255CEC2C51D081EFF40366512890989_8A726233B0F9B64FE822B7A4065CB375
                • Size 471B
                • SHA256 40cb238f64b6d464f297878f2389d1223b1417f493f488c1d55759df7f8a39c2
                • MD5 SHA1 SHA512

                156887258BBD6E1FEF562837733EA04E_5BBC02CEDFD3F7AC9E268D830CF231EE

                • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\156887258BBD6E1FEF562837733EA04E_5BBC02CEDFD3F7AC9E268D830CF231EE
                • Size 2KB
                • SHA256 46fc92c4d863d93eb50b6e1f097bac457f553915cb172da7136ecd5f81d69fe3
                • MD5 SHA1 SHA512

                223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771

                • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771
                • Size 2KB
                • SHA256 261b931e89a697f15f35ebe38faf32cb8b67ac3fe628ec8ac860c0e6e9b01464
                • MD5 SHA1 SHA512

                5080DC7A65DB6A5960ECD874088F3328_862BA1770B2FEE013603D2FF9ABEAFDA

                • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\5080DC7A65DB6A5960ECD874088F3328_862BA1770B2FEE013603D2FF9ABEAFDA
                • Size 2KB
                • SHA256 340d048d7f46e25d83d97affa98d53d773e83e070b28ed67ea3472362a0a2993
                • MD5 SHA1 SHA512

                B2FAF7692FD9FFBD64EDE317E42334BA_2DBE917624E9880FE0C7C5570D56E691

                • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_2DBE917624E9880FE0C7C5570D56E691
                • Size 1KB
                • SHA256 5d2c8933104167dece16b77357813d01c861d0c00176057ab8fe93222b51141d
                • MD5 SHA1 SHA512

                EB2C4AB8B68FFA4B7733A9139239A396_D76DB901EE986B889F30D8CC06229E2D

                • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\EB2C4AB8B68FFA4B7733A9139239A396_D76DB901EE986B889F30D8CC06229E2D
                • Size 1KB
                • SHA256 fcd368cd3608e36d7cb22c98ea40b5c77feec34a08719fa136cef6db5e2036ec
                • MD5 SHA1 SHA512

                0255CEC2C51D081EFF40366512890989_8A726233B0F9B64FE822B7A4065CB375

                • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\0255CEC2C51D081EFF40366512890989_8A726233B0F9B64FE822B7A4065CB375
                • Size 490B
                • SHA256 906796850cca588888006a0aa4c39f07fc597989b877f3b39c9ee950b2e874c6
                • MD5 SHA1 SHA512

                156887258BBD6E1FEF562837733EA04E_5BBC02CEDFD3F7AC9E268D830CF231EE

                • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\156887258BBD6E1FEF562837733EA04E_5BBC02CEDFD3F7AC9E268D830CF231EE
                • Size 458B
                • SHA256 1b4d7afe74bfd79492551bed5e00202f4f4a8d7ad59036454ceb206a96975334
                • MD5 SHA1 SHA512

                223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771

                • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771
                • Size 450B
                • SHA256 bb7cd813437f77bb605da06db66751bf6834939f9936f6d0d4b33317d5a288ab
                • MD5 SHA1 SHA512

                5080DC7A65DB6A5960ECD874088F3328_862BA1770B2FEE013603D2FF9ABEAFDA

                • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\5080DC7A65DB6A5960ECD874088F3328_862BA1770B2FEE013603D2FF9ABEAFDA
                • Size 482B
                • SHA256 849bfba0859c7191b33b747b7a9fe883c07c801c3be86c2cd8c316fff280cd2d
                • MD5 SHA1 SHA512

                B2FAF7692FD9FFBD64EDE317E42334BA_2DBE917624E9880FE0C7C5570D56E691

                • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_2DBE917624E9880FE0C7C5570D56E691
                • Size 486B
                • SHA256 7b31d7fde685f36a82dfa283e219b1b6845b18f8a6f819a8db98f662a8785ccb
                • MD5 SHA1 SHA512

                EB2C4AB8B68FFA4B7733A9139239A396_D76DB901EE986B889F30D8CC06229E2D

                • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\EB2C4AB8B68FFA4B7733A9139239A396_D76DB901EE986B889F30D8CC06229E2D
                • Size 458B
                • SHA256 d13d25d2529e4ab57011cf943669159867f66eda0bb7b7c7cf416723f358000d
                • MD5 SHA1 SHA512

                AdminFBKKFBAEGD.exe.log

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

                memory/8-168-0x0000000000A50000-0x0000000000A9A000-memory.dmp

                memory/60-308-0x0000000000400000-0x0000000000657000-memory.dmp

                memory/60-309-0x0000000000400000-0x0000000000657000-memory.dmp

                memory/916-27-0x0000000024A10000-0x0000000024C6F000-memory.dmp

                memory/916-4-0x0000000000400000-0x0000000000657000-memory.dmp

                memory/916-10-0x0000000000400000-0x0000000000657000-memory.dmp

                memory/916-8-0x0000000000400000-0x0000000000657000-memory.dmp

                memory/916-25-0x0000000000400000-0x0000000000657000-memory.dmp

                memory/916-26-0x0000000000400000-0x0000000000657000-memory.dmp

                memory/916-84-0x0000000000400000-0x0000000000657000-memory.dmp

                memory/916-42-0x0000000000400000-0x0000000000657000-memory.dmp

                memory/916-43-0x0000000000400000-0x0000000000657000-memory.dmp

                memory/916-59-0x0000000000400000-0x0000000000657000-memory.dmp

                memory/916-94-0x0000000000400000-0x0000000000657000-memory.dmp

                memory/916-93-0x0000000000400000-0x0000000000657000-memory.dmp

                memory/916-60-0x0000000000400000-0x0000000000657000-memory.dmp

                memory/916-85-0x0000000000400000-0x0000000000657000-memory.dmp

                memory/1264-121-0x0000000000400000-0x0000000000459000-memory.dmp

                memory/1264-124-0x0000000000400000-0x0000000000459000-memory.dmp

                memory/1264-131-0x0000000000400000-0x0000000000459000-memory.dmp

                memory/1704-133-0x0000000000720000-0x0000000000732000-memory.dmp

                memory/2552-300-0x0000000073260000-0x0000000073A10000-memory.dmp

                memory/2552-117-0x0000000000CC0000-0x0000000000D16000-memory.dmp

                memory/2552-118-0x000000007326E000-0x000000007326F000-memory.dmp

                memory/2552-130-0x0000000073260000-0x0000000073A10000-memory.dmp

                memory/2888-289-0x0000000000400000-0x0000000000657000-memory.dmp

                memory/2888-292-0x00000000203C0000-0x000000002061F000-memory.dmp

                memory/2888-307-0x0000000000400000-0x0000000000657000-memory.dmp

                memory/2888-306-0x0000000000400000-0x0000000000657000-memory.dmp

                memory/2888-290-0x0000000000400000-0x0000000000657000-memory.dmp

                memory/3600-148-0x0000000000850000-0x0000000000888000-memory.dmp

                memory/3728-179-0x0000000061E00000-0x0000000061EF3000-memory.dmp

                memory/3728-154-0x0000000000400000-0x0000000000643000-memory.dmp

                memory/3728-151-0x0000000000400000-0x0000000000643000-memory.dmp

                memory/4008-272-0x0000000000400000-0x0000000000459000-memory.dmp

                memory/4604-13-0x0000000074900000-0x00000000750B0000-memory.dmp

                memory/4604-0-0x000000007490E000-0x000000007490F000-memory.dmp

                memory/4604-92-0x0000000074900000-0x00000000750B0000-memory.dmp

                memory/4604-1-0x0000000000AF0000-0x0000000000B3A000-memory.dmp