Analysis

  • max time kernel
    144s
  • max time network
    153s
  • 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, 11:06

General

  • Target

    ac76ace706e90388a2cd45a0643b34d9025b98cbdf9ef28b376f6eb7865357e6.exe

  • Size

    7.2MB

  • MD5

    71d688a3200225adada96012631d1ab4

  • SHA1

    51d0ba13f04ca48ddefffaa065a984602f467db1

  • SHA256

    ac76ace706e90388a2cd45a0643b34d9025b98cbdf9ef28b376f6eb7865357e6

  • SHA512

    54ed9c1373a42cc2a9a3f77a30ff847131d32de3627bd0b8bb2980088964083fef2ce50807212ba517073d5c7162f5c2953d6a8ddf42dd7c766fb67c8603faae

  • SSDEEP

    196608:fxm5EEwkzysVKr9L3VLEQtNO8LakngzHEGWzj:DkzYr97tEeXqjEFzj

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\ac76ace706e90388a2cd45a0643b34d9025b98cbdf9ef28b376f6eb7865357e6.exe
    "C:\Users\Admin\AppData\Local\Temp\ac76ace706e90388a2cd45a0643b34d9025b98cbdf9ef28b376f6eb7865357e6.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1504
    • C:\Users\Admin\AppData\Local\Temp\is-SMIS5.tmp\ac76ace706e90388a2cd45a0643b34d9025b98cbdf9ef28b376f6eb7865357e6.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-SMIS5.tmp\ac76ace706e90388a2cd45a0643b34d9025b98cbdf9ef28b376f6eb7865357e6.tmp" /SL5="$D005C,7250593,121856,C:\Users\Admin\AppData\Local\Temp\ac76ace706e90388a2cd45a0643b34d9025b98cbdf9ef28b376f6eb7865357e6.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1428
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:4912
        • C:\Program Files (x86)\numGIF\numgif.exe
          "C:\Program Files (x86)\numGIF\numgif.exe" -i
          3⤵
          • Executes dropped EXE
          PID:2684
        • C:\Program Files (x86)\numGIF\numgif.exe
          "C:\Program Files (x86)\numGIF\numgif.exe" -s
          3⤵
          • Executes dropped EXE
          PID:3324
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 12
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3024
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 12
            4⤵
              PID:3864

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            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-6U3EO.tmp\_isetup\_iscrypt.dll

              Filesize

              2KB

              MD5

              a69559718ab506675e907fe49deb71e9

              SHA1

              bc8f404ffdb1960b50c12ff9413c893b56f2e36f

              SHA256

              2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

              SHA512

              e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

            • C:\Users\Admin\AppData\Local\Temp\is-6U3EO.tmp\_isetup\_isdecmp.dll

              Filesize

              19KB

              MD5

              3adaa386b671c2df3bae5b39dc093008

              SHA1

              067cf95fbdb922d81db58432c46930f86d23dded

              SHA256

              71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

              SHA512

              bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

            • C:\Users\Admin\AppData\Local\Temp\is-SMIS5.tmp\ac76ace706e90388a2cd45a0643b34d9025b98cbdf9ef28b376f6eb7865357e6.tmp

              Filesize

              687KB

              MD5

              f448d7f4b76e5c9c3a4eaff16a8b9b73

              SHA1

              31808f1ffa84c954376975b7cdb0007e6b762488

              SHA256

              7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

              SHA512

              f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

            • memory/1428-6-0x0000000002340000-0x0000000002341000-memory.dmp

              Filesize

              4KB

            • memory/1428-160-0x0000000000400000-0x00000000004BC000-memory.dmp

              Filesize

              752KB

            • memory/1428-162-0x0000000002340000-0x0000000002341000-memory.dmp

              Filesize

              4KB

            • memory/1504-0-0x0000000000400000-0x0000000000425000-memory.dmp

              Filesize

              148KB

            • memory/1504-159-0x0000000000400000-0x0000000000425000-memory.dmp

              Filesize

              148KB

            • memory/2684-151-0x0000000000400000-0x0000000000627000-memory.dmp

              Filesize

              2.2MB

            • memory/2684-154-0x0000000000400000-0x0000000000627000-memory.dmp

              Filesize

              2.2MB

            • memory/2684-152-0x0000000000400000-0x0000000000627000-memory.dmp

              Filesize

              2.2MB

            • memory/2684-150-0x0000000000400000-0x0000000000627000-memory.dmp

              Filesize

              2.2MB

            • memory/3324-165-0x0000000000400000-0x0000000000627000-memory.dmp

              Filesize

              2.2MB

            • memory/3324-178-0x0000000000400000-0x0000000000627000-memory.dmp

              Filesize

              2.2MB

            • memory/3324-158-0x0000000000400000-0x0000000000627000-memory.dmp

              Filesize

              2.2MB

            • memory/3324-157-0x0000000000400000-0x0000000000627000-memory.dmp

              Filesize

              2.2MB

            • memory/3324-166-0x0000000000400000-0x0000000000627000-memory.dmp

              Filesize

              2.2MB

            • memory/3324-169-0x0000000000400000-0x0000000000627000-memory.dmp

              Filesize

              2.2MB

            • memory/3324-172-0x0000000000400000-0x0000000000627000-memory.dmp

              Filesize

              2.2MB

            • memory/3324-175-0x0000000000400000-0x0000000000627000-memory.dmp

              Filesize

              2.2MB

            • memory/3324-179-0x00000000007D0000-0x000000000086E000-memory.dmp

              Filesize

              632KB

            • memory/3324-161-0x0000000000400000-0x0000000000627000-memory.dmp

              Filesize

              2.2MB

            • memory/3324-180-0x00000000007D0000-0x000000000086E000-memory.dmp

              Filesize

              632KB

            • memory/3324-185-0x0000000000400000-0x0000000000627000-memory.dmp

              Filesize

              2.2MB

            • memory/3324-188-0x0000000000400000-0x0000000000627000-memory.dmp

              Filesize

              2.2MB

            • memory/3324-189-0x00000000007D0000-0x000000000086E000-memory.dmp

              Filesize

              632KB

            • memory/3324-192-0x0000000000400000-0x0000000000627000-memory.dmp

              Filesize

              2.2MB

            • memory/3324-195-0x0000000000400000-0x0000000000627000-memory.dmp

              Filesize

              2.2MB

            • memory/3324-198-0x0000000000400000-0x0000000000627000-memory.dmp

              Filesize

              2.2MB

            • memory/3324-202-0x0000000000400000-0x0000000000627000-memory.dmp

              Filesize

              2.2MB

            • memory/3324-205-0x0000000000400000-0x0000000000627000-memory.dmp

              Filesize

              2.2MB

            • memory/3324-208-0x0000000000400000-0x0000000000627000-memory.dmp

              Filesize

              2.2MB