Analysis

  • max time kernel
    150s
  • max time network
    93s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    21-11-2020 22:31

General

  • Target

    acl firewall.rtf

  • Size

    1KB

  • MD5

    a96fcc8367b78ab708a23e2426c2978d

  • SHA1

    5ad78c8ac5767a1d9687136dab8c966af5191bf6

  • SHA256

    0b96038a6be8251415277d6649e9c2393825379c16ef81c44c12bf0a14f48640

  • SHA512

    89becca4ea3c050827a86a299034126efa27d98b0705619a5eabb7ea7b67e22baff78731b7ba2e7f70623e5e3f64dc58fce6c02b6f44b25c241d6c26858334f2

Score
4/10

Malware Config

Signatures

  • Drops file in Windows directory 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 56 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 12 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\acl firewall.rtf"
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1808
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:368
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe"
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:736
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:736 CREDAT:340993 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1216
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe"
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2004
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2004 CREDAT:275457 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:904

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Modify Registry

    1
    T1112

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{07DE41E1-2C4A-11EB-8B2A-76BCB60B883E}.dat
      MD5

      c74f924f142233eb1fdbbf55619b1448

      SHA1

      96f4f86ce2164a27165b5106f82e1db5bb30900b

      SHA256

      85abd88208b49d6229c3d9673d8addcaae185a46b63c5f5f9797376c213e4105

      SHA512

      7095eac733123808ee906419ec85481ad988a65f4c84829116637728c8dc8f00b04aa4d4e4ca85aab7fc1cf74099f5413c39cba754c8db39d442b097df5756b2

    • memory/368-0-0x0000000000000000-mapping.dmp
    • memory/904-9-0x0000000000000000-mapping.dmp
    • memory/1076-7-0x000007FEF7020000-0x000007FEF729A000-memory.dmp
      Filesize

      2.5MB

    • memory/1216-8-0x0000000000000000-mapping.dmp
    • memory/1808-1-0x0000000000650000-0x0000000000651000-memory.dmp
      Filesize

      4KB

    • memory/1808-3-0x0000000000650000-0x0000000000651000-memory.dmp
      Filesize

      4KB

    • memory/1808-4-0x0000000000630000-0x0000000000631000-memory.dmp
      Filesize

      4KB

    • memory/1808-6-0x0000000004620000-0x0000000004624000-memory.dmp
      Filesize

      16KB