Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220721-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-07-2022 17:47

General

  • Target

    a396c91b4750c7d2c166e523f2659ee64d88a840ab3d941b27b8b4e78e0ec24a.exe

  • Size

    2.1MB

  • MD5

    54de310a8f0a06c0141f2c00ee587736

  • SHA1

    e38ad9557e9e1bc2bdcdafd726da2c6d9d3c6372

  • SHA256

    a396c91b4750c7d2c166e523f2659ee64d88a840ab3d941b27b8b4e78e0ec24a

  • SHA512

    d53b79ee7e15639dc4d94bb646b87830eabbc40af6730459d687710d8b30b1b519e66c49a487e5756fecf4758583d8b619e9a038ee0752ee86f78488a6f3bda1

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

89.248.173.187:4898

Attributes
  • communication_password

    81dc9bdb52d04dc20036dbd8313ed055

  • install_dir

    desktop

  • install_file

    wmzr.exe

  • 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 4 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: RenamesItself 29 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a396c91b4750c7d2c166e523f2659ee64d88a840ab3d941b27b8b4e78e0ec24a.exe
    "C:\Users\Admin\AppData\Local\Temp\a396c91b4750c7d2c166e523f2659ee64d88a840ab3d941b27b8b4e78e0ec24a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:828
    • C:\Users\Admin\AppData\Local\Temp\a396c91b4750c7d2c166e523f2659ee64d88a840ab3d941b27b8b4e78e0ec24a.exe
      "C:\Users\Admin\AppData\Local\Temp\a396c91b4750c7d2c166e523f2659ee64d88a840ab3d941b27b8b4e78e0ec24a.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1468

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/828-133-0x000000000346A000-0x000000000364E000-memory.dmp

    Filesize

    1.9MB

  • memory/828-135-0x0000000003650000-0x0000000003A15000-memory.dmp

    Filesize

    3.8MB

  • memory/1468-138-0x0000000074A70000-0x0000000074AA9000-memory.dmp

    Filesize

    228KB

  • memory/1468-139-0x0000000000400000-0x00000000007CE000-memory.dmp

    Filesize

    3.8MB

  • memory/1468-131-0x0000000000400000-0x00000000007CE000-memory.dmp

    Filesize

    3.8MB

  • memory/1468-134-0x0000000000400000-0x00000000007CE000-memory.dmp

    Filesize

    3.8MB

  • memory/1468-136-0x0000000000400000-0x00000000007CE000-memory.dmp

    Filesize

    3.8MB

  • memory/1468-137-0x0000000074B40000-0x0000000074B79000-memory.dmp

    Filesize

    228KB

  • memory/1468-130-0x0000000000000000-mapping.dmp

  • memory/1468-132-0x0000000000400000-0x00000000007CE000-memory.dmp

    Filesize

    3.8MB

  • memory/1468-140-0x0000000074A70000-0x0000000074AA9000-memory.dmp

    Filesize

    228KB

  • memory/1468-141-0x0000000074A70000-0x0000000074AA9000-memory.dmp

    Filesize

    228KB

  • memory/1468-142-0x0000000074B40000-0x0000000074B79000-memory.dmp

    Filesize

    228KB

  • memory/1468-143-0x0000000074A70000-0x0000000074AA9000-memory.dmp

    Filesize

    228KB

  • memory/1468-144-0x0000000074A70000-0x0000000074AA9000-memory.dmp

    Filesize

    228KB

  • memory/1468-145-0x0000000074A70000-0x0000000074AA9000-memory.dmp

    Filesize

    228KB

  • memory/1468-146-0x0000000074A70000-0x0000000074AA9000-memory.dmp

    Filesize

    228KB

  • memory/1468-147-0x0000000074A70000-0x0000000074AA9000-memory.dmp

    Filesize

    228KB