Analysis

  • max time kernel
    123s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    11-12-2020 18:19

General

  • Target

    statistics.12.20.doc

  • Size

    83KB

  • MD5

    3132824fb649bb9358abffdc67542593

  • SHA1

    a1bd53255b81a3dc7d3be1a2ca87522cbd758431

  • SHA256

    785e7a1f4e7d48efff95dd5d5574d7326845e67ccf3dc9b4dd228d25246ba933

  • SHA512

    04a8970679c9dc7d9732278cbb1f722c52ac2576c3b949a44e76d57cdc46068466fa2f5e1498dfbe1474bc7d036120459a4096bb69615657e3df9b20f55dfd5f

Score
10/10

Malware Config

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.

  • Blocklisted process makes network request 8 IoCs
  • Downloads MZ/PE file
  • Loads dropped DLL 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 9 IoCs
  • Modifies system certificate store 2 TTPs 4 IoCs
  • Script User-Agent 1 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of SetWindowsHookEx 16 IoCs
  • Suspicious use of WriteProcessMemory 11 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\statistics.12.20.doc"
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1080
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32 c:\programdata\iwqOx.pdf,ShowDialogA -r
      2⤵
      • Process spawned unexpected child process
      • Blocklisted process makes network request
      • Loads dropped DLL
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      PID:616
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:304

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Modify Registry

    2
    T1112

    Install Root Certificate

    1
    T1130

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • \??\c:\programdata\iwqOx.pdf
      MD5

      8f346905de2448acdaa852abe048edf4

      SHA1

      ec05425496016bc337b671ec682c2780fdd8f8d8

      SHA256

      8a18bfcc126278cc95b6859c1557018d3c979be08c460a8099b33a847713d414

      SHA512

      9ed34388b3223a38157b1a789279b25f8e11a17f5e45373f42268de7018285c6ca15ed798d11ab0b06d0924191462b2b3e4edfdcb3d824a4d41104dfc422f390

    • \ProgramData\iwqOx.pdf
      MD5

      8f346905de2448acdaa852abe048edf4

      SHA1

      ec05425496016bc337b671ec682c2780fdd8f8d8

      SHA256

      8a18bfcc126278cc95b6859c1557018d3c979be08c460a8099b33a847713d414

      SHA512

      9ed34388b3223a38157b1a789279b25f8e11a17f5e45373f42268de7018285c6ca15ed798d11ab0b06d0924191462b2b3e4edfdcb3d824a4d41104dfc422f390

    • memory/304-6-0x0000000000000000-mapping.dmp
    • memory/616-3-0x0000000000000000-mapping.dmp