Analysis

  • max time kernel
    122s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    20-11-2024 01:10

General

  • Target

    8eae0fa62e0400bda4c1f395103d02390199045c35ece42d437a9d878433440b.exe

  • Size

    8.3MB

  • MD5

    2780aa0eed2951601dc61d4c38011b85

  • SHA1

    1e5b178f61f58a9e90b267d881c20031f530c001

  • SHA256

    8eae0fa62e0400bda4c1f395103d02390199045c35ece42d437a9d878433440b

  • SHA512

    f599fec839cb48c3c145e0ef8583949fff3b5538b8ad402bd4e06b6f851c7bb682f884757fa6dbaac3fce134c34cd86236abc76b7c657d4370cdcf4046c2f09e

  • SSDEEP

    196608:exOxtJahKu0vlXzxh+ZD2G1md3dtonTkM:7xtJtzX2ZD2GUtonv

Malware Config

Extracted

Family

vidar

Version

11.7

Botnet

8ec2721615c8de7e0afa1fdbfc111f76

C2

https://t.me/m07mbk

https://steamcommunity.com/profiles/76561199801589826

Signatures

  • Detect Vidar Stealer 7 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • Stealc family
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Vidar family
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 6 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 2 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 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8eae0fa62e0400bda4c1f395103d02390199045c35ece42d437a9d878433440b.exe
    "C:\Users\Admin\AppData\Local\Temp\8eae0fa62e0400bda4c1f395103d02390199045c35ece42d437a9d878433440b.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2380
    • C:\Users\Admin\AppData\Local\Temp\8eae0fa62e0400bda4c1f395103d02390199045c35ece42d437a9d878433440b.exe
      "C:\Users\Admin\AppData\Local\Temp\8eae0fa62e0400bda4c1f395103d02390199045c35ece42d437a9d878433440b.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2508
      • C:\Users\Admin\AppData\Local\Temp\BUILD.EXE
        "C:\Users\Admin\AppData\Local\Temp\BUILD.EXE"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2796
        • C:\Users\Admin\AppData\Local\Temp\BUILD.EXE
          "C:\Users\Admin\AppData\Local\Temp\BUILD.EXE"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Modifies system certificate store
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2648
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\BUILD.EXE" & rd /s /q "C:\ProgramData\ECGHCBGCBFHI" & exit
            5⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:1392
            • C:\Windows\SysWOW64\timeout.exe
              timeout /t 10
              6⤵
              • System Location Discovery: System Language Discovery
              • Delays execution with timeout.exe
              PID:1752
      • C:\Users\Admin\AppData\Local\Temp\CRYPTED.EXE
        "C:\Users\Admin\AppData\Local\Temp\CRYPTED.EXE"
        3⤵
        • Executes dropped EXE
        PID:2904

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\CRYPTED.EXE

    Filesize

    353KB

    MD5

    a6c522213b6d328513ac0770555035f4

    SHA1

    e3376ed412a343b6c787c7b5cf62ec63d47aa00c

    SHA256

    0a14b17aa3dfadac32fb1b5fffbe2f68f694f5a5b3adc3b9363458f329952238

    SHA512

    93723e343751815b406f0b7dbfd2fa9dda558e577a2e5852eb42d92c44685b643463faf691213025a1f19d1a2b5266245ffac5bd6e7f5a463f3ec000d0ae7dea

  • C:\Users\Admin\AppData\Local\Temp\Cab8039.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\Tar809A.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • \Users\Admin\AppData\Local\Temp\BUILD.EXE

    Filesize

    4.1MB

    MD5

    117231c0ea5644ae28ec0a8963b14e41

    SHA1

    4e28424ff04d51ec065e93f85a5e9e1b4ccc992d

    SHA256

    c5f355ea361d59345a90a6f1e157d29e982830d623202af7ecff5288d6f75c32

    SHA512

    5488f16020f1b14241e43c30640641fd0cead88a4f607e405b8ad42f31f161c4c38b58189111491c9901ac65a1cd2f7d43b43b9b75ce76eae4c35d48835dc988

  • memory/2380-26-0x0000000000C16000-0x0000000000C43000-memory.dmp

    Filesize

    180KB

  • memory/2380-19-0x0000000000517000-0x000000000052F000-memory.dmp

    Filesize

    96KB

  • memory/2380-25-0x0000000000C0E000-0x0000000000C43000-memory.dmp

    Filesize

    212KB

  • memory/2380-24-0x0000000000C0A000-0x0000000000C0F000-memory.dmp

    Filesize

    20KB

  • memory/2380-23-0x0000000000C04000-0x0000000000C0F000-memory.dmp

    Filesize

    44KB

  • memory/2380-7-0x0000000000400000-0x0000000000C61000-memory.dmp

    Filesize

    8.4MB

  • memory/2380-22-0x0000000000C01000-0x0000000000C05000-memory.dmp

    Filesize

    16KB

  • memory/2380-21-0x0000000000C42000-0x0000000000C61000-memory.dmp

    Filesize

    124KB

  • memory/2380-20-0x0000000000BFA000-0x0000000000C05000-memory.dmp

    Filesize

    44KB

  • memory/2380-6-0x0000000000400000-0x0000000000C61000-memory.dmp

    Filesize

    8.4MB

  • memory/2380-13-0x0000000000400000-0x0000000000C61000-memory.dmp

    Filesize

    8.4MB

  • memory/2380-2-0x0000000000400000-0x0000000000C61000-memory.dmp

    Filesize

    8.4MB

  • memory/2380-12-0x0000000000400000-0x0000000000C61000-memory.dmp

    Filesize

    8.4MB

  • memory/2380-14-0x0000000000400000-0x0000000000C61000-memory.dmp

    Filesize

    8.4MB

  • memory/2380-5-0x0000000000400000-0x0000000000C61000-memory.dmp

    Filesize

    8.4MB

  • memory/2380-3-0x0000000000517000-0x000000000052F000-memory.dmp

    Filesize

    96KB

  • memory/2380-0-0x0000000000400000-0x0000000000C61000-memory.dmp

    Filesize

    8.4MB

  • memory/2508-8-0x0000000000C70000-0x00000000010FA000-memory.dmp

    Filesize

    4.5MB

  • memory/2508-16-0x0000000000C70000-0x00000000010FA000-memory.dmp

    Filesize

    4.5MB

  • memory/2508-41-0x0000000000C70000-0x00000000010FA000-memory.dmp

    Filesize

    4.5MB

  • memory/2508-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2508-11-0x0000000000C70000-0x00000000010FA000-memory.dmp

    Filesize

    4.5MB

  • memory/2508-27-0x0000000000400000-0x0000000000C61000-memory.dmp

    Filesize

    8.4MB

  • memory/2648-51-0x0000000000830000-0x0000000000A89000-memory.dmp

    Filesize

    2.3MB

  • memory/2648-113-0x0000000000830000-0x0000000000A89000-memory.dmp

    Filesize

    2.3MB

  • memory/2648-112-0x0000000000830000-0x0000000000A89000-memory.dmp

    Filesize

    2.3MB

  • memory/2648-111-0x0000000000830000-0x0000000000A89000-memory.dmp

    Filesize

    2.3MB

  • memory/2648-54-0x0000000000830000-0x0000000000A89000-memory.dmp

    Filesize

    2.3MB

  • memory/2648-58-0x0000000000830000-0x0000000000A89000-memory.dmp

    Filesize

    2.3MB

  • memory/2796-56-0x0000000000400000-0x000000000082E000-memory.dmp

    Filesize

    4.2MB

  • memory/2796-48-0x0000000000400000-0x000000000082E000-memory.dmp

    Filesize

    4.2MB

  • memory/2796-55-0x0000000000400000-0x000000000082E000-memory.dmp

    Filesize

    4.2MB

  • memory/2796-45-0x0000000000400000-0x000000000082E000-memory.dmp

    Filesize

    4.2MB

  • memory/2796-46-0x0000000000400000-0x000000000082E000-memory.dmp

    Filesize

    4.2MB

  • memory/2796-47-0x0000000000400000-0x000000000082E000-memory.dmp

    Filesize

    4.2MB

  • memory/2796-43-0x0000000000400000-0x000000000082E000-memory.dmp

    Filesize

    4.2MB