Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230831-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-09-2023 16:52

General

  • Target

    lz_JC.exe

  • Size

    388KB

  • MD5

    4ff84ca1c02088f313c97694244cb2a4

  • SHA1

    d2ffff7d201ac6236d3d091047f498c11bae00d6

  • SHA256

    f3126ddd86d1e048db68f22cb1de5de871282bbd5764c4c77867042c8f1aab93

  • SHA512

    0ab79b098be51c4035871e1b85bb815954a0c936fb9bc5bc598ac824e1c4e45d5f6b56f4f3e4a063c82a91ab30cb953018abc9161e3b2cfdf785d97d6a09d00b

  • SSDEEP

    12288:tCspLdeVEn/oEehNiNsF9hS2Oga+nqgU+1kkqabCtXSXNcqye9cBz:tCULoVEn/oEsA/2OgVqgU+1kkqabCtXB

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

rornfl12.duckdns.org:3072

Attributes
  • communication_password

    81dc9bdb52d04dc20036dbd8313ed055

  • install_dir

    chrome

  • install_file

    updater

  • tor_process

    tor

Signatures

  • BitRAT

    BitRAT is a remote access tool written in C++ and uses leaked source code from other families.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k netsvcs -p
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    PID:4924
  • C:\Users\Admin\AppData\Local\Temp\lz_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\lz_JC.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1200
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      2⤵
      • Adds Run key to start application
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2124

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1200-46-0x00000000096B0000-0x0000000009925000-memory.dmp

    Filesize

    2.5MB

  • memory/1200-65-0x00000000096B0000-0x0000000009925000-memory.dmp

    Filesize

    2.5MB

  • memory/1200-8-0x0000000005FA0000-0x0000000006544000-memory.dmp

    Filesize

    5.6MB

  • memory/1200-9-0x0000000005910000-0x00000000059A2000-memory.dmp

    Filesize

    584KB

  • memory/1200-10-0x0000000005900000-0x0000000005910000-memory.dmp

    Filesize

    64KB

  • memory/1200-11-0x00000000059D0000-0x00000000059DA000-memory.dmp

    Filesize

    40KB

  • memory/1200-12-0x0000000074C90000-0x0000000075440000-memory.dmp

    Filesize

    7.7MB

  • memory/1200-13-0x00000000096B0000-0x0000000009925000-memory.dmp

    Filesize

    2.5MB

  • memory/1200-14-0x00000000096B0000-0x0000000009925000-memory.dmp

    Filesize

    2.5MB

  • memory/1200-16-0x00000000096B0000-0x0000000009925000-memory.dmp

    Filesize

    2.5MB

  • memory/1200-18-0x00000000096B0000-0x0000000009925000-memory.dmp

    Filesize

    2.5MB

  • memory/1200-20-0x00000000096B0000-0x0000000009925000-memory.dmp

    Filesize

    2.5MB

  • memory/1200-22-0x00000000096B0000-0x0000000009925000-memory.dmp

    Filesize

    2.5MB

  • memory/1200-24-0x00000000096B0000-0x0000000009925000-memory.dmp

    Filesize

    2.5MB

  • memory/1200-42-0x00000000096B0000-0x0000000009925000-memory.dmp

    Filesize

    2.5MB

  • memory/1200-28-0x00000000096B0000-0x0000000009925000-memory.dmp

    Filesize

    2.5MB

  • memory/1200-30-0x00000000096B0000-0x0000000009925000-memory.dmp

    Filesize

    2.5MB

  • memory/1200-32-0x00000000096B0000-0x0000000009925000-memory.dmp

    Filesize

    2.5MB

  • memory/1200-34-0x00000000096B0000-0x0000000009925000-memory.dmp

    Filesize

    2.5MB

  • memory/1200-36-0x00000000096B0000-0x0000000009925000-memory.dmp

    Filesize

    2.5MB

  • memory/1200-38-0x00000000096B0000-0x0000000009925000-memory.dmp

    Filesize

    2.5MB

  • memory/1200-40-0x00000000096B0000-0x0000000009925000-memory.dmp

    Filesize

    2.5MB

  • memory/1200-26-0x00000000096B0000-0x0000000009925000-memory.dmp

    Filesize

    2.5MB

  • memory/1200-1096-0x0000000074C90000-0x0000000075440000-memory.dmp

    Filesize

    7.7MB

  • memory/1200-61-0x00000000096B0000-0x0000000009925000-memory.dmp

    Filesize

    2.5MB

  • memory/1200-48-0x00000000096B0000-0x0000000009925000-memory.dmp

    Filesize

    2.5MB

  • memory/1200-50-0x00000000096B0000-0x0000000009925000-memory.dmp

    Filesize

    2.5MB

  • memory/1200-52-0x00000000096B0000-0x0000000009925000-memory.dmp

    Filesize

    2.5MB

  • memory/1200-54-0x00000000096B0000-0x0000000009925000-memory.dmp

    Filesize

    2.5MB

  • memory/1200-56-0x00000000096B0000-0x0000000009925000-memory.dmp

    Filesize

    2.5MB

  • memory/1200-57-0x0000000005900000-0x0000000005910000-memory.dmp

    Filesize

    64KB

  • memory/1200-59-0x00000000096B0000-0x0000000009925000-memory.dmp

    Filesize

    2.5MB

  • memory/1200-0-0x0000000074C90000-0x0000000075440000-memory.dmp

    Filesize

    7.7MB

  • memory/1200-63-0x00000000096B0000-0x0000000009925000-memory.dmp

    Filesize

    2.5MB

  • memory/1200-7-0x0000000000EC0000-0x0000000000F28000-memory.dmp

    Filesize

    416KB

  • memory/1200-67-0x00000000096B0000-0x0000000009925000-memory.dmp

    Filesize

    2.5MB

  • memory/1200-69-0x00000000096B0000-0x0000000009925000-memory.dmp

    Filesize

    2.5MB

  • memory/1200-71-0x00000000096B0000-0x0000000009925000-memory.dmp

    Filesize

    2.5MB

  • memory/1200-73-0x00000000096B0000-0x0000000009925000-memory.dmp

    Filesize

    2.5MB

  • memory/1200-75-0x00000000096B0000-0x0000000009925000-memory.dmp

    Filesize

    2.5MB

  • memory/1200-77-0x00000000096B0000-0x0000000009925000-memory.dmp

    Filesize

    2.5MB

  • memory/1200-1090-0x0000000007770000-0x0000000007771000-memory.dmp

    Filesize

    4KB

  • memory/1200-44-0x00000000096B0000-0x0000000009925000-memory.dmp

    Filesize

    2.5MB

  • memory/2124-1095-0x0000000000400000-0x00000000007CE000-memory.dmp

    Filesize

    3.8MB

  • memory/2124-1098-0x0000000074BA0000-0x0000000074BD9000-memory.dmp

    Filesize

    228KB

  • memory/2124-1106-0x0000000074860000-0x0000000074899000-memory.dmp

    Filesize

    228KB

  • memory/2124-1112-0x0000000000400000-0x00000000007CE000-memory.dmp

    Filesize

    3.8MB

  • memory/2124-1143-0x0000000074860000-0x0000000074899000-memory.dmp

    Filesize

    228KB