Overview

overview

10

Static

static

USE THIS.exe

windows7_x64

10

USE THIS.exe

windows10_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-en
  • submitted
    04/09/2021, 15:01

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General

  • Target
    USE THIS.exe
  • Size 2.0MB
  • Sample210904-sdwa2ahdhm
  • SHA256 b4a79b7fac8b571454b8d2373623a9fa825c1bc2ef6d1370b831782237d24984
  • MD5 SHA1 SHA512
Score
10/10
bitratpersistencesuricatatrojanupx

Malware Config

Signatures

  • BitRAT

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

    trojanbitrat
  • BitRAT Payload 1 IoCs
  • suricata: ET MALWARE Observed Malicious SSL Cert (BitRAT CnC)

    suricata: ET MALWARE Observed Malicious SSL Cert (BitRAT CnC)

    suricata
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: RenamesItself 20 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\USE THIS.exe
    "C:\Users\Admin\AppData\Local\Temp\USE THIS.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1076
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\USE THIS.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:584
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JbsvkxFokcDlUJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA821.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1484
    • C:\Users\Admin\AppData\Local\Temp\USE THIS.exe
      "C:\Users\Admin\AppData\Local\Temp\USE THIS.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1656

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/584-67-0x0000000002270000-0x0000000002EBA000-memory.dmp
        Download

        memory/584-65-0x0000000002270000-0x0000000002EBA000-memory.dmp
        Download

        memory/584-66-0x0000000002270000-0x0000000002EBA000-memory.dmp
        Download

        memory/584-59-0x00000000753B1000-0x00000000753B3000-memory.dmp
        Download

        memory/1076-56-0x0000000005CF0000-0x0000000005EA0000-memory.dmp
        Download

        memory/1076-57-0x0000000006090000-0x0000000006203000-memory.dmp
        Download

        memory/1076-52-0x0000000000A70000-0x0000000000A71000-memory.dmp
        Download

        memory/1076-55-0x00000000004E0000-0x00000000004F6000-memory.dmp
        Download

        memory/1076-54-0x0000000004C90000-0x0000000004C91000-memory.dmp
        Download

        memory/1656-61-0x0000000000400000-0x00000000007E4000-memory.dmp
        Download

        memory/1656-64-0x0000000000400000-0x00000000007E4000-memory.dmp
        Download