Analysis

  • max time kernel
    145s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-12-2023 10:17

General

  • Target

    b93229b76ee8354f138483dd2658a25de13c8a82b8790a1ff1a6bcf725d27c38.exe

  • Size

    7.2MB

  • MD5

    85fa848974393ca2bb61045f581ca59b

  • SHA1

    ae07427165baf664a6e70bbd41dcb318becd09b0

  • SHA256

    b93229b76ee8354f138483dd2658a25de13c8a82b8790a1ff1a6bcf725d27c38

  • SHA512

    a87e3007b5cb2d59f1946eb96640829ced33bdda699cef08f197731756fef7361063b5ce6ef6eab1abad3173d7908f7d4e22fb90ec982cb52457134fc2eefb24

  • SSDEEP

    196608:9xm5EEwkzysVKr9L3VLEQtNO8LakngzHEGWzj:1kzYr97tEeXqjEFzj

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Unexpected DNS network traffic destination 1 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Program Files directory 63 IoCs
  • Runs net.exe
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b93229b76ee8354f138483dd2658a25de13c8a82b8790a1ff1a6bcf725d27c38.exe
    "C:\Users\Admin\AppData\Local\Temp\b93229b76ee8354f138483dd2658a25de13c8a82b8790a1ff1a6bcf725d27c38.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4524
    • C:\Users\Admin\AppData\Local\Temp\is-JFVJA.tmp\b93229b76ee8354f138483dd2658a25de13c8a82b8790a1ff1a6bcf725d27c38.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-JFVJA.tmp\b93229b76ee8354f138483dd2658a25de13c8a82b8790a1ff1a6bcf725d27c38.tmp" /SL5="$100044,7250593,121856,C:\Users\Admin\AppData\Local\Temp\b93229b76ee8354f138483dd2658a25de13c8a82b8790a1ff1a6bcf725d27c38.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4960
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:2820
        • C:\Program Files (x86)\numGIF\numgif.exe
          "C:\Program Files (x86)\numGIF\numgif.exe" -i
          3⤵
          • Executes dropped EXE
          PID:436
        • C:\Program Files (x86)\numGIF\numgif.exe
          "C:\Program Files (x86)\numGIF\numgif.exe" -s
          3⤵
          • Executes dropped EXE
          PID:4528
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 12
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1616
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 12
            4⤵
              PID:4104

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Program Files (x86)\numGIF\numgif.exe

        Filesize

        2.1MB

        MD5

        ec000a50cc880a53e598028d23e12ba0

        SHA1

        38d75cc013e019b3a1779bcce3bb852c9b8b6334

        SHA256

        3442eca1f93aaf1df01fdc64229e113161fa9de85c21cdc76d831fd530a11589

        SHA512

        dd483c719c7eced6de04143ef04542cadd7b6a82f6a3571a28cea40f946c089e2beed5b408744341b4f03ee0f3e04e73e95469fbdb47d9647995363168e73171

      • C:\Users\Admin\AppData\Local\Temp\is-B609A.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • C:\Users\Admin\AppData\Local\Temp\is-B609A.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • C:\Users\Admin\AppData\Local\Temp\is-JFVJA.tmp\b93229b76ee8354f138483dd2658a25de13c8a82b8790a1ff1a6bcf725d27c38.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • memory/436-151-0x0000000000400000-0x0000000000627000-memory.dmp

        Filesize

        2.2MB

      • memory/436-152-0x0000000000400000-0x0000000000627000-memory.dmp

        Filesize

        2.2MB

      • memory/436-154-0x0000000000400000-0x0000000000627000-memory.dmp

        Filesize

        2.2MB

      • memory/436-155-0x0000000000400000-0x0000000000627000-memory.dmp

        Filesize

        2.2MB

      • memory/4524-159-0x0000000000400000-0x0000000000425000-memory.dmp

        Filesize

        148KB

      • memory/4524-2-0x0000000000400000-0x0000000000425000-memory.dmp

        Filesize

        148KB

      • memory/4524-0-0x0000000000400000-0x0000000000425000-memory.dmp

        Filesize

        148KB

      • memory/4528-165-0x0000000000400000-0x0000000000627000-memory.dmp

        Filesize

        2.2MB

      • memory/4528-178-0x0000000000400000-0x0000000000627000-memory.dmp

        Filesize

        2.2MB

      • memory/4528-208-0x0000000000400000-0x0000000000627000-memory.dmp

        Filesize

        2.2MB

      • memory/4528-161-0x0000000000400000-0x0000000000627000-memory.dmp

        Filesize

        2.2MB

      • memory/4528-205-0x0000000000400000-0x0000000000627000-memory.dmp

        Filesize

        2.2MB

      • memory/4528-202-0x0000000000400000-0x0000000000627000-memory.dmp

        Filesize

        2.2MB

      • memory/4528-166-0x0000000000400000-0x0000000000627000-memory.dmp

        Filesize

        2.2MB

      • memory/4528-169-0x0000000000400000-0x0000000000627000-memory.dmp

        Filesize

        2.2MB

      • memory/4528-172-0x0000000000400000-0x0000000000627000-memory.dmp

        Filesize

        2.2MB

      • memory/4528-175-0x0000000000400000-0x0000000000627000-memory.dmp

        Filesize

        2.2MB

      • memory/4528-179-0x00000000007B0000-0x000000000084E000-memory.dmp

        Filesize

        632KB

      • memory/4528-158-0x0000000000400000-0x0000000000627000-memory.dmp

        Filesize

        2.2MB

      • memory/4528-180-0x00000000007B0000-0x000000000084E000-memory.dmp

        Filesize

        632KB

      • memory/4528-185-0x0000000000400000-0x0000000000627000-memory.dmp

        Filesize

        2.2MB

      • memory/4528-188-0x0000000000400000-0x0000000000627000-memory.dmp

        Filesize

        2.2MB

      • memory/4528-189-0x00000000007B0000-0x000000000084E000-memory.dmp

        Filesize

        632KB

      • memory/4528-192-0x0000000000400000-0x0000000000627000-memory.dmp

        Filesize

        2.2MB

      • memory/4528-195-0x0000000000400000-0x0000000000627000-memory.dmp

        Filesize

        2.2MB

      • memory/4528-198-0x0000000000400000-0x0000000000627000-memory.dmp

        Filesize

        2.2MB

      • memory/4960-10-0x0000000002240000-0x0000000002241000-memory.dmp

        Filesize

        4KB

      • memory/4960-162-0x0000000002240000-0x0000000002241000-memory.dmp

        Filesize

        4KB

      • memory/4960-160-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB