Analysis

  • max time kernel
    122s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-en-20211104
  • submitted
    02-12-2021 13:30

General

  • Target

    charge-12.21.doc

  • Size

    33KB

  • MD5

    74a0006068bb29d6713ce528103687bc

  • SHA1

    156010577234a86d730de63ac661c975caa088c6

  • SHA256

    eae84642b156436fffe52122b3184971df09e9fb369aff2afcad3ad59a8c623f

  • SHA512

    852449009a2ad40075e507882fa0a0389441fc57342212388bf862318a264ea6bc2a61b3545173345b4b8c37a7a795f9f72680436996ea76359d30a27d34815f

Malware Config

Extracted

Family

icedid

Campaign

1892568649

C2

normyils.com

Signatures

  • IcedID, BokBot

    IcedID is a banking trojan capable of stealing credentials.

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • suricata: ET MALWARE Win32/IcedID Request Cookie

    suricata: ET MALWARE Win32/IcedID Request Cookie

  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Loads dropped DLL 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 32 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of SetWindowsHookEx 16 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\charge-12.21.doc"
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1616
    • C:\Windows\SysWOW64\explorer.exe
      explorer dowLoadYou.hta
      2⤵
      • Process spawned unexpected child process
      PID:1816
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1536
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:668
      • C:\Windows\SysWOW64\mshta.exe
        "C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Documents\dowLoadYou.hta"
        2⤵
        • Blocklisted process makes network request
        • Modifies Internet Explorer settings
        • Suspicious use of WriteProcessMemory
        PID:1140
        • C:\Windows\SysWOW64\regsvr32.exe
          "C:\Windows\System32\regsvr32.exe" c:\users\public\loveDoorDow.jpg
          3⤵
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:1572
          • C:\Windows\system32\regsvr32.exe
            c:\users\public\loveDoorDow.jpg
            4⤵
            • Loads dropped DLL
            • Suspicious behavior: EnumeratesProcesses
            PID:1380

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Modify Registry

    1
    T1112

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\Documents\dowLoadYou.hta
      MD5

      20741b6c308dc472336c53db7c17ce87

      SHA1

      8e1bd0889de5accb7833242634b40c1666bba565

      SHA256

      7ec242dfa70987e9b5152cbf08ba96c1ba65732c94508998608ed8f0247004e8

      SHA512

      ba574f14cd4107633d5049d0cbaa3d0d3224f28168acc5cb9bea2a9b298f5c49eb71b3f8687fc48a07ad8b44315a5fe05bb0dc5a31a5d861b0754bbb0f69dd9d

    • \??\c:\users\public\loveDoorDow.jpg
      MD5

      f02ed653441d939105df057a62140f06

      SHA1

      b5682d81270241b878097cc8744395cd1aac3e7b

      SHA256

      e0bcd999b33a7170eb6250b7d3441c7cfc6529dc78e460b04525cfb1d800b424

      SHA512

      161b041eec1f75f7a7c04cc5547915eb879c8218f5ed7498bd6d8e34668dd7745029389bd2e621e83cf52f0eee5161fdbd15063dbd20b4eb9d0f50c2d053903d

    • \Users\Public\loveDoorDow.jpg
      MD5

      f02ed653441d939105df057a62140f06

      SHA1

      b5682d81270241b878097cc8744395cd1aac3e7b

      SHA256

      e0bcd999b33a7170eb6250b7d3441c7cfc6529dc78e460b04525cfb1d800b424

      SHA512

      161b041eec1f75f7a7c04cc5547915eb879c8218f5ed7498bd6d8e34668dd7745029389bd2e621e83cf52f0eee5161fdbd15063dbd20b4eb9d0f50c2d053903d

    • \Users\Public\loveDoorDow.jpg
      MD5

      f02ed653441d939105df057a62140f06

      SHA1

      b5682d81270241b878097cc8744395cd1aac3e7b

      SHA256

      e0bcd999b33a7170eb6250b7d3441c7cfc6529dc78e460b04525cfb1d800b424

      SHA512

      161b041eec1f75f7a7c04cc5547915eb879c8218f5ed7498bd6d8e34668dd7745029389bd2e621e83cf52f0eee5161fdbd15063dbd20b4eb9d0f50c2d053903d

    • memory/668-64-0x000007FEFBC01000-0x000007FEFBC03000-memory.dmp
      Filesize

      8KB

    • memory/1140-66-0x0000000000000000-mapping.dmp
    • memory/1380-76-0x0000000000300000-0x0000000000363000-memory.dmp
      Filesize

      396KB

    • memory/1380-73-0x0000000000000000-mapping.dmp
    • memory/1536-67-0x0000000000000000-mapping.dmp
    • memory/1572-69-0x0000000000000000-mapping.dmp
    • memory/1616-55-0x00000000726F1000-0x00000000726F4000-memory.dmp
      Filesize

      12KB

    • memory/1616-60-0x0000000000362000-0x0000000000366000-memory.dmp
      Filesize

      16KB

    • memory/1616-59-0x0000000000362000-0x0000000000366000-memory.dmp
      Filesize

      16KB

    • memory/1616-58-0x0000000076241000-0x0000000076243000-memory.dmp
      Filesize

      8KB

    • memory/1616-57-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/1616-56-0x0000000070171000-0x0000000070173000-memory.dmp
      Filesize

      8KB

    • memory/1816-63-0x000000006AFA1000-0x000000006AFA3000-memory.dmp
      Filesize

      8KB

    • memory/1816-61-0x0000000000000000-mapping.dmp