Analysis

  • max time kernel
    149s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    25-05-2021 22:27

General

  • Target

    core/cmd.bat

Malware Config

Extracted

Family

icedid

rsa_pubkey.plain

Extracted

Family

icedid

Botnet

987543880

C2

fimlubindu.top

vindurualeg.top

esaquell.website

extrimefigim.top

Attributes
  • url_path

    /news/

Signatures

  • IcedID, BokBot

    IcedID is a banking trojan capable of stealing credentials.

  • Blocklisted process makes network request 6 IoCs
  • Downloads MZ/PE file
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Enumerates physical storage devices 1 TTPs

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

  • Discovers systems in the same network 1 TTPs 2 IoCs
  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • Gathers system information 1 TTPs 1 IoCs

    Runs systeminfo.exe.

  • Modifies registry class 2 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 40 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c "C:\Users\Admin\AppData\Local\Temp\core\cmd.bat"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1084
    • C:\Windows\system32\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\core\childx64.bin,update /i:"license.dat"
      2⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1148
      • C:\Windows\system32\cmd.exe
        cmd.exe /c chcp >&2
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1424
        • C:\Windows\system32\chcp.com
          chcp
          4⤵
            PID:620
        • C:\Windows\System32\Wbem\WMIC.exe
          WMIC /Node:localhost /Namespace:\\root\SecurityCenter2 Path AntiVirusProduct Get * /Format:List
          3⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:760
        • C:\Windows\system32\ipconfig.exe
          ipconfig /all
          3⤵
          • Gathers network information
          PID:544
        • C:\Windows\system32\systeminfo.exe
          systeminfo
          3⤵
          • Gathers system information
          PID:1848
        • C:\Windows\system32\net.exe
          net config workstation
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:396
          • C:\Windows\system32\net1.exe
            C:\Windows\system32\net1 config workstation
            4⤵
              PID:436
          • C:\Windows\system32\nltest.exe
            nltest /domain_trusts
            3⤵
              PID:804
            • C:\Windows\system32\nltest.exe
              nltest /domain_trusts /all_trusts
              3⤵
                PID:980
              • C:\Windows\system32\net.exe
                net view /all /domain
                3⤵
                • Discovers systems in the same network
                PID:1368
              • C:\Windows\system32\net.exe
                net view /all
                3⤵
                • Discovers systems in the same network
                PID:544
              • C:\Windows\system32\net.exe
                net group "Domain Admins" /domain
                3⤵
                • Suspicious use of WriteProcessMemory
                PID:1728
                • C:\Windows\system32\net1.exe
                  C:\Windows\system32\net1 group "Domain Admins" /domain
                  4⤵
                    PID:432

            Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            • memory/1148-62-0x0000000001D40000-0x0000000001D81000-memory.dmp

              Filesize

              260KB

            • memory/1148-61-0x0000000001D90000-0x0000000001DE8000-memory.dmp

              Filesize

              352KB