Windows 7 deprecation

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Analysis

  • max time kernel
    52s
  • max time network
    41s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    01/12/2022, 23:39 UTC

General

  • Target

    d064228c4138fbebb897dd0d74a69450ae58f1240ac9a33be7bb8e211f87a7db.exe

  • Size

    316KB

  • MD5

    8aa3ee839270cb28d05534f3fd5721d2

  • SHA1

    be496410a16b7bd22d04c5234cfb10c0f00c3514

  • SHA256

    d064228c4138fbebb897dd0d74a69450ae58f1240ac9a33be7bb8e211f87a7db

  • SHA512

    52ef0db49cdf4a3e2f43d910e170afdb12568a8d31f6c6a7987b7d99730983e99e744f2d3c80e8efed20ed57986d0eb57a2836a6a270cd4f5aebae0178ba82b0

  • SSDEEP

    3072:VZJwhpF3SpWufu/muESamFi5eLb532qRgzqRe/aT4E1KZnBmaNtDvJRZ8Ng0ykdi:VZ43jb532qRmqRe/aT4EYDmaNtNRKNi

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 27 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 50 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d064228c4138fbebb897dd0d74a69450ae58f1240ac9a33be7bb8e211f87a7db.exe
    "C:\Users\Admin\AppData\Local\Temp\d064228c4138fbebb897dd0d74a69450ae58f1240ac9a33be7bb8e211f87a7db.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:364
    • C:\Users\Admin\koeafi.exe
      "C:\Users\Admin\koeafi.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:1868

Network

  • flag-unknown
    DNS
    ns1.helpupdates.biz
    d064228c4138fbebb897dd0d74a69450ae58f1240ac9a33be7bb8e211f87a7db.exe
    Remote address:
    8.8.8.8:53
    Request
    ns1.helpupdates.biz
    IN A
    Response
  • flag-unknown
    DNS
    ns1.helpupdates.biz
    d064228c4138fbebb897dd0d74a69450ae58f1240ac9a33be7bb8e211f87a7db.exe
    Remote address:
    8.8.8.8:53
    Request
    ns1.helpupdates.biz
    IN A
    Response
  • flag-unknown
    DNS
    ns1.helpupdates.net
    d064228c4138fbebb897dd0d74a69450ae58f1240ac9a33be7bb8e211f87a7db.exe
    Remote address:
    8.8.8.8:53
    Request
    ns1.helpupdates.net
    IN A
    Response
  • flag-unknown
    DNS
    ns1.helpupdates.com
    d064228c4138fbebb897dd0d74a69450ae58f1240ac9a33be7bb8e211f87a7db.exe
    Remote address:
    8.8.8.8:53
    Request
    ns1.helpupdates.com
    IN A
    Response
  • flag-unknown
    DNS
    ns1.helpupdates.org
    d064228c4138fbebb897dd0d74a69450ae58f1240ac9a33be7bb8e211f87a7db.exe
    Remote address:
    8.8.8.8:53
    Request
    ns1.helpupdates.org
    IN A
    Response
  • flag-unknown
    DNS
    ns1.helpupdates.info
    d064228c4138fbebb897dd0d74a69450ae58f1240ac9a33be7bb8e211f87a7db.exe
    Remote address:
    8.8.8.8:53
    Request
    ns1.helpupdates.info
    IN A
    Response
No results found
  • 8.8.8.8:53
    ns1.helpupdates.biz
    dns
    d064228c4138fbebb897dd0d74a69450ae58f1240ac9a33be7bb8e211f87a7db.exe
    130 B
    254 B
    2
    2

    DNS Request

    ns1.helpupdates.biz

    DNS Request

    ns1.helpupdates.biz

  • 8.8.8.8:53
    ns1.helpupdates.net
    dns
    d064228c4138fbebb897dd0d74a69450ae58f1240ac9a33be7bb8e211f87a7db.exe
    65 B
    138 B
    1
    1

    DNS Request

    ns1.helpupdates.net

  • 8.8.8.8:53
    ns1.helpupdates.com
    dns
    d064228c4138fbebb897dd0d74a69450ae58f1240ac9a33be7bb8e211f87a7db.exe
    65 B
    133 B
    1
    1

    DNS Request

    ns1.helpupdates.com

  • 8.8.8.8:53
    ns1.helpupdates.org
    dns
    d064228c4138fbebb897dd0d74a69450ae58f1240ac9a33be7bb8e211f87a7db.exe
    65 B
    147 B
    1
    1

    DNS Request

    ns1.helpupdates.org

  • 8.8.8.8:53
    ns1.helpupdates.info
    dns
    d064228c4138fbebb897dd0d74a69450ae58f1240ac9a33be7bb8e211f87a7db.exe
    66 B
    145 B
    1
    1

    DNS Request

    ns1.helpupdates.info

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\koeafi.exe

    Filesize

    316KB

    MD5

    709c8dff4f21aa188fb7ef4eaf00ce63

    SHA1

    4d094a1851cae643638b280b4a094874959e8754

    SHA256

    968dfe6e4cde87200a59efe818ee54290f0d45969bbb6eb853b3453b99d3248f

    SHA512

    eb0e69bbb59bb5073f5b60a56ce1ba72d74046912787b63dcc7ab9433b7fe60ae2d7e103dea3e87f36e3b04d7ff7f2a0109f797723a75e61e7d47ea0de8d3e48

  • C:\Users\Admin\koeafi.exe

    Filesize

    316KB

    MD5

    709c8dff4f21aa188fb7ef4eaf00ce63

    SHA1

    4d094a1851cae643638b280b4a094874959e8754

    SHA256

    968dfe6e4cde87200a59efe818ee54290f0d45969bbb6eb853b3453b99d3248f

    SHA512

    eb0e69bbb59bb5073f5b60a56ce1ba72d74046912787b63dcc7ab9433b7fe60ae2d7e103dea3e87f36e3b04d7ff7f2a0109f797723a75e61e7d47ea0de8d3e48

  • \Users\Admin\koeafi.exe

    Filesize

    316KB

    MD5

    709c8dff4f21aa188fb7ef4eaf00ce63

    SHA1

    4d094a1851cae643638b280b4a094874959e8754

    SHA256

    968dfe6e4cde87200a59efe818ee54290f0d45969bbb6eb853b3453b99d3248f

    SHA512

    eb0e69bbb59bb5073f5b60a56ce1ba72d74046912787b63dcc7ab9433b7fe60ae2d7e103dea3e87f36e3b04d7ff7f2a0109f797723a75e61e7d47ea0de8d3e48

  • \Users\Admin\koeafi.exe

    Filesize

    316KB

    MD5

    709c8dff4f21aa188fb7ef4eaf00ce63

    SHA1

    4d094a1851cae643638b280b4a094874959e8754

    SHA256

    968dfe6e4cde87200a59efe818ee54290f0d45969bbb6eb853b3453b99d3248f

    SHA512

    eb0e69bbb59bb5073f5b60a56ce1ba72d74046912787b63dcc7ab9433b7fe60ae2d7e103dea3e87f36e3b04d7ff7f2a0109f797723a75e61e7d47ea0de8d3e48

  • memory/364-56-0x0000000076681000-0x0000000076683000-memory.dmp

    Filesize

    8KB

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