Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-06-2024 09:11

General

  • Target

    0b482e2ab1e7617208c8c1efb813fa9068ffef7e6838a4e3480306556a9a8360.exe

  • Size

    2.4MB

  • MD5

    783e39299c7629c4f388b029645e558c

  • SHA1

    8c381c89c48665c907ebb53302d598f671f26901

  • SHA256

    0b482e2ab1e7617208c8c1efb813fa9068ffef7e6838a4e3480306556a9a8360

  • SHA512

    9dcb071810a55807dae7a1c594be5e6e206f63abcf62d521e1a27770e5ac5abdfed3e1498122e4b2de3ff49f29bf81069b29827b71ec82e8748f98fa43ae31c5

  • SSDEEP

    49152:bRynbaHbGJeBwbxc3C4BVEIamvPurzsuvRUwca8OxzTYMeGusZk81bbaonFo:NynbaWeBw1HIEIameviwcaBosTZ5iZ

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://t.me/r8z0l

https://steamcommunity.com/profiles/76561199698764354

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0

Signatures

  • Detect Vidar Stealer 4 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Downloads MZ/PE file
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Themida packer 2 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Checks processor information in registry 2 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0b482e2ab1e7617208c8c1efb813fa9068ffef7e6838a4e3480306556a9a8360.exe
    "C:\Users\Admin\AppData\Local\Temp\0b482e2ab1e7617208c8c1efb813fa9068ffef7e6838a4e3480306556a9a8360.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1896
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      2⤵
        PID:4016
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
        2⤵
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        PID:3544

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1896-40-0x0000000005620000-0x0000000005635000-memory.dmp

      Filesize

      84KB

    • memory/1896-6-0x00000000757A0000-0x0000000075890000-memory.dmp

      Filesize

      960KB

    • memory/1896-3-0x00000000757A0000-0x0000000075890000-memory.dmp

      Filesize

      960KB

    • memory/1896-1-0x00000000757C0000-0x00000000757C1000-memory.dmp

      Filesize

      4KB

    • memory/1896-8-0x00000000757A0000-0x0000000075890000-memory.dmp

      Filesize

      960KB

    • memory/1896-7-0x00000000757A0000-0x0000000075890000-memory.dmp

      Filesize

      960KB

    • memory/1896-56-0x0000000005620000-0x0000000005635000-memory.dmp

      Filesize

      84KB

    • memory/1896-5-0x00000000757A0000-0x0000000075890000-memory.dmp

      Filesize

      960KB

    • memory/1896-4-0x00000000757A0000-0x0000000075890000-memory.dmp

      Filesize

      960KB

    • memory/1896-11-0x0000000000490000-0x0000000000B3A000-memory.dmp

      Filesize

      6.7MB

    • memory/1896-12-0x0000000005650000-0x00000000056EC000-memory.dmp

      Filesize

      624KB

    • memory/1896-13-0x0000000005780000-0x0000000005854000-memory.dmp

      Filesize

      848KB

    • memory/1896-14-0x0000000005620000-0x000000000563C000-memory.dmp

      Filesize

      112KB

    • memory/1896-24-0x0000000005620000-0x0000000005635000-memory.dmp

      Filesize

      84KB

    • memory/1896-74-0x0000000005620000-0x0000000005635000-memory.dmp

      Filesize

      84KB

    • memory/1896-72-0x0000000005620000-0x0000000005635000-memory.dmp

      Filesize

      84KB

    • memory/1896-70-0x0000000005620000-0x0000000005635000-memory.dmp

      Filesize

      84KB

    • memory/1896-68-0x0000000005620000-0x0000000005635000-memory.dmp

      Filesize

      84KB

    • memory/1896-15-0x0000000005620000-0x0000000005635000-memory.dmp

      Filesize

      84KB

    • memory/1896-64-0x0000000005620000-0x0000000005635000-memory.dmp

      Filesize

      84KB

    • memory/1896-62-0x0000000005620000-0x0000000005635000-memory.dmp

      Filesize

      84KB

    • memory/1896-60-0x0000000005620000-0x0000000005635000-memory.dmp

      Filesize

      84KB

    • memory/1896-58-0x0000000005620000-0x0000000005635000-memory.dmp

      Filesize

      84KB

    • memory/1896-16-0x0000000005620000-0x0000000005635000-memory.dmp

      Filesize

      84KB

    • memory/1896-66-0x0000000005620000-0x0000000005635000-memory.dmp

      Filesize

      84KB

    • memory/1896-2-0x00000000757A0000-0x0000000075890000-memory.dmp

      Filesize

      960KB

    • memory/1896-18-0x0000000005620000-0x0000000005635000-memory.dmp

      Filesize

      84KB

    • memory/1896-81-0x0000000000490000-0x0000000000B3A000-memory.dmp

      Filesize

      6.7MB

    • memory/1896-82-0x00000000757A0000-0x0000000075890000-memory.dmp

      Filesize

      960KB

    • memory/1896-54-0x0000000005620000-0x0000000005635000-memory.dmp

      Filesize

      84KB

    • memory/1896-52-0x0000000005620000-0x0000000005635000-memory.dmp

      Filesize

      84KB

    • memory/1896-50-0x0000000005620000-0x0000000005635000-memory.dmp

      Filesize

      84KB

    • memory/1896-48-0x0000000005620000-0x0000000005635000-memory.dmp

      Filesize

      84KB

    • memory/1896-46-0x0000000005620000-0x0000000005635000-memory.dmp

      Filesize

      84KB

    • memory/1896-44-0x0000000005620000-0x0000000005635000-memory.dmp

      Filesize

      84KB

    • memory/1896-42-0x0000000005620000-0x0000000005635000-memory.dmp

      Filesize

      84KB

    • memory/1896-0-0x0000000000490000-0x0000000000B3A000-memory.dmp

      Filesize

      6.7MB

    • memory/1896-38-0x0000000005620000-0x0000000005635000-memory.dmp

      Filesize

      84KB

    • memory/1896-37-0x0000000005620000-0x0000000005635000-memory.dmp

      Filesize

      84KB

    • memory/1896-34-0x0000000005620000-0x0000000005635000-memory.dmp

      Filesize

      84KB

    • memory/1896-32-0x0000000005620000-0x0000000005635000-memory.dmp

      Filesize

      84KB

    • memory/1896-30-0x0000000005620000-0x0000000005635000-memory.dmp

      Filesize

      84KB

    • memory/1896-28-0x0000000005620000-0x0000000005635000-memory.dmp

      Filesize

      84KB

    • memory/1896-26-0x0000000005620000-0x0000000005635000-memory.dmp

      Filesize

      84KB

    • memory/1896-22-0x0000000005620000-0x0000000005635000-memory.dmp

      Filesize

      84KB

    • memory/1896-20-0x0000000005620000-0x0000000005635000-memory.dmp

      Filesize

      84KB

    • memory/3544-94-0x0000000000400000-0x0000000000648000-memory.dmp

      Filesize

      2.3MB

    • memory/3544-75-0x0000000000400000-0x0000000000648000-memory.dmp

      Filesize

      2.3MB

    • memory/3544-77-0x0000000000400000-0x0000000000648000-memory.dmp

      Filesize

      2.3MB

    • memory/3544-79-0x00000000757A0000-0x0000000075890000-memory.dmp

      Filesize

      960KB

    • memory/3544-141-0x00000000757A0000-0x0000000075890000-memory.dmp

      Filesize

      960KB