Analysis

  • max time kernel
    133s
  • max time network
    257s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    23-09-2024 05:08

General

  • Target

    a893e20fea08c8615de1775ad3559ea6eff35b5ec3b1ab6f463924285a84f47f.exe

  • Size

    216KB

  • MD5

    ea754070163f8eca914b259096d834f0

  • SHA1

    cebf2eccad67deaf6ac9b8dc71118ad474b16868

  • SHA256

    a893e20fea08c8615de1775ad3559ea6eff35b5ec3b1ab6f463924285a84f47f

  • SHA512

    2a75b505780c6670204f5c4e2818bb1b027c88e98c9c45dde39aed786afaeff60215afb278fdd89eed58639c9eccf901836da4329d3c62c03911992b923ca225

  • SSDEEP

    6144:I/NKt5fv5P2tInQP5loWIUKp6KgjfOc2PEO:IFuxv5OinA5lJQ6Kgb6EO

Malware Config

Extracted

Family

stealc

Botnet

default

C2

http://46.8.231.109

Attributes
  • url_path

    /c4754d4f680ead72.php

Extracted

Family

vidar

Version

11

Botnet

3a15237aa92dcd8ccca447211fb5fc2a

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

Signatures

  • Detect Vidar Stealer 11 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
  • 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 12 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 32 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a893e20fea08c8615de1775ad3559ea6eff35b5ec3b1ab6f463924285a84f47f.exe
    "C:\Users\Admin\AppData\Local\Temp\a893e20fea08c8615de1775ad3559ea6eff35b5ec3b1ab6f463924285a84f47f.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2772
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
        PID:4748
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:5116
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\AdminDHCAECGIEB.exe"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:648
          • C:\Users\AdminDHCAECGIEB.exe
            "C:\Users\AdminDHCAECGIEB.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:880
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
              5⤵
                PID:1152
              • 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:5072
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\AdminGCAKKECAEG.exe"
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:164
            • C:\Users\AdminGCAKKECAEG.exe
              "C:\Users\AdminGCAKKECAEG.exe"
              4⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:1752
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                5⤵
                  PID:1812
                • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                  5⤵
                  • Loads dropped DLL
                  • System Location Discovery: System Language Discovery
                  • Checks processor information in registry
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of WriteProcessMemory
                  PID:592
                  • C:\ProgramData\KJKKJKEHDB.exe
                    "C:\ProgramData\KJKKJKEHDB.exe"
                    6⤵
                    • Executes dropped EXE
                    • Suspicious use of SetThreadContext
                    • System Location Discovery: System Language Discovery
                    • Suspicious use of WriteProcessMemory
                    PID:4332
                    • 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:4188
                  • C:\Windows\SysWOW64\cmd.exe
                    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\IJDGCAEBFIIE" & exit
                    6⤵
                    • System Location Discovery: System Language Discovery
                    PID:1580
                    • C:\Windows\SysWOW64\timeout.exe
                      timeout /t 10
                      7⤵
                      • System Location Discovery: System Language Discovery
                      • Delays execution with timeout.exe
                      PID:2272

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\ProgramData\IJDGCAEBFIIE\EHDGCG

          Filesize

          6KB

          MD5

          df7c2c8224613e6a6dd714d5d9fa247d

          SHA1

          d6e0a108494ef7ab2756250c5df5cae8b3a994a7

          SHA256

          ccab09bd3486976b4aa17b48e31bcaf8e6be365ea6605e168bf203d7e5b3e818

          SHA512

          af1ff3b3a71e764ea507503637896f3dfe69d16e201b0be9bcf4c728700e1a30685028f6be57609fb685571c71baefb476103d96d8b7f034d492eb373ed33b0a

        • C:\ProgramData\IJDGCAEBFIIE\HJJKFB

          Filesize

          92KB

          MD5

          dc89cfe2a3b5ff9acb683c7237226713

          SHA1

          24f19bc7d79fa0c5af945b28616225866ee51dd5

          SHA256

          ceddefa824f1dd6e7e669d4470e18e557c22fe73359f5b31edf4537473b96148

          SHA512

          ee5d047e1124351997ecfaa5c8bd3e9ce8a974ac281675cda4d0a55e40f3883336a2378b9ebf3d1f227d01b386c26473c32e39bcab836da2b392bf778a6cf5c2

        • C:\ProgramData\freebl3.dll

          Filesize

          669KB

          MD5

          550686c0ee48c386dfcb40199bd076ac

          SHA1

          ee5134da4d3efcb466081fb6197be5e12a5b22ab

          SHA256

          edd043f2005dbd5902fc421eabb9472a7266950c5cbaca34e2d590b17d12f5fa

          SHA512

          0b7f47af883b99f9fbdc08020446b58f2f3fa55292fd9bc78fc967dd35bdd8bd549802722de37668cc89ede61b20359190efbfdf026ae2bdc854f4740a54649e

        • C:\ProgramData\msvcp140.dll

          Filesize

          439KB

          MD5

          5ff1fca37c466d6723ec67be93b51442

          SHA1

          34cc4e158092083b13d67d6d2bc9e57b798a303b

          SHA256

          5136a49a682ac8d7f1ce71b211de8688fce42ed57210af087a8e2dbc8a934062

          SHA512

          4802ef62630c521d83a1d333969593fb00c9b38f82b4d07f70fbd21f495fea9b3f67676064573d2c71c42bc6f701992989742213501b16087bb6110e337c7546

        • C:\ProgramData\softokn3.dll

          Filesize

          251KB

          MD5

          4e52d739c324db8225bd9ab2695f262f

          SHA1

          71c3da43dc5a0d2a1941e874a6d015a071783889

          SHA256

          74ebbac956e519e16923abdc5ab8912098a4f64e38ddcb2eae23969f306afe5a

          SHA512

          2d4168a69082a9192b9248f7331bd806c260478ff817567df54f997d7c3c7d640776131355401e4bdb9744e246c36d658cb24b18de67d8f23f10066e5fe445f6

        • C:\ProgramData\vcruntime140.dll

          Filesize

          78KB

          MD5

          a37ee36b536409056a86f50e67777dd7

          SHA1

          1cafa159292aa736fc595fc04e16325b27cd6750

          SHA256

          8934aaeb65b6e6d253dfe72dea5d65856bd871e989d5d3a2a35edfe867bb4825

          SHA512

          3a7c260646315cf8c01f44b2ec60974017496bd0d80dd055c7e43b707cadba2d63aab5e0efd435670aa77886ed86368390d42c4017fc433c3c4b9d1c47d0f356

        • C:\Users\AdminDHCAECGIEB.exe

          Filesize

          381KB

          MD5

          f5a1956973dce107d4c0b6267ce88870

          SHA1

          79a19513d7c9cff939f2881c4172a05dbaef735b

          SHA256

          7b794c5bdb820791f0359da90a9a4f258412b8feef9c6e6a0411f6aead9d3a04

          SHA512

          f42180c75c0ae8dc083c6fff98a66c0d875fadb400d7945816ea330a54777632a3a7752d3e78b90e45f58ed3d04d6708b1dcea51d82711356e6d14e405a7c579

        • C:\Users\AdminGCAKKECAEG.exe

          Filesize

          413KB

          MD5

          76b81bbaa929e92a0885267869e62fdf

          SHA1

          16ee3b53fd9d0fe6bd7fc75ac961a21bfd9fae51

          SHA256

          f59f82ea9cbaa95389bbec5f80b427daa2e575c2827eaaede006590810809f9c

          SHA512

          67d4fb8ed2c767871a307c54fddc86fa4df07ccfa943eeb61e6e8960c4038fb8a38118a69cbb7a6364dde6c11fd3139b8c5f91e029a437dad0d39202383ac3cd

        • \ProgramData\mozglue.dll

          Filesize

          593KB

          MD5

          c8fd9be83bc728cc04beffafc2907fe9

          SHA1

          95ab9f701e0024cedfbd312bcfe4e726744c4f2e

          SHA256

          ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

          SHA512

          fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

        • \ProgramData\nss3.dll

          Filesize

          2.0MB

          MD5

          1cc453cdf74f31e4d913ff9c10acdde2

          SHA1

          6e85eae544d6e965f15fa5c39700fa7202f3aafe

          SHA256

          ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

          SHA512

          dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

        • memory/592-128-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/592-161-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/592-116-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/592-104-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/592-169-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/592-168-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/592-102-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/592-117-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/592-160-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/592-129-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/592-118-0x00000000201E0000-0x000000002043F000-memory.dmp

          Filesize

          2.4MB

        • memory/592-100-0x0000000000400000-0x0000000000676000-memory.dmp

          Filesize

          2.5MB

        • memory/880-81-0x000000007296E000-0x000000007296F000-memory.dmp

          Filesize

          4KB

        • memory/880-79-0x00000000005D0000-0x0000000000630000-memory.dmp

          Filesize

          384KB

        • memory/1752-88-0x00000000000D0000-0x0000000000138000-memory.dmp

          Filesize

          416KB

        • memory/2772-4-0x0000000073E00000-0x00000000744EE000-memory.dmp

          Filesize

          6.9MB

        • memory/2772-2-0x0000000073E00000-0x00000000744EE000-memory.dmp

          Filesize

          6.9MB

        • memory/2772-0-0x0000000073E0E000-0x0000000073E0F000-memory.dmp

          Filesize

          4KB

        • memory/2772-7-0x0000000073E00000-0x00000000744EE000-memory.dmp

          Filesize

          6.9MB

        • memory/2772-1-0x00000000008A0000-0x00000000008D8000-memory.dmp

          Filesize

          224KB

        • memory/5072-93-0x0000000000400000-0x0000000000464000-memory.dmp

          Filesize

          400KB

        • memory/5072-95-0x0000000000400000-0x0000000000464000-memory.dmp

          Filesize

          400KB

        • memory/5072-91-0x0000000000400000-0x0000000000464000-memory.dmp

          Filesize

          400KB

        • memory/5116-5-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/5116-11-0x0000000061E00000-0x0000000061EF3000-memory.dmp

          Filesize

          972KB

        • memory/5116-9-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/5116-97-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/5116-10-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB

        • memory/5116-80-0x0000000000400000-0x0000000000643000-memory.dmp

          Filesize

          2.3MB