Analysis

  • max time kernel
    144s
  • max time network
    129s
  • platform
    windows10-1703_x64
  • resource
    win10-20231020-en
  • resource tags

    arch:x64arch:x86image:win10-20231020-enlocale:en-usos:windows10-1703-x64system
  • submitted
    12/12/2023, 12:48

General

  • Target

    fc3dd46fae8bb958301a0c4d41a9ca7e0e2703700a7b60e79f400d1824fe87b8.exe

  • Size

    7.2MB

  • MD5

    85e81e2a924655fee5fd7d00d3334dad

  • SHA1

    8b09e78fecc212aa6e1a1fa595b3b519e8fd3e76

  • SHA256

    fc3dd46fae8bb958301a0c4d41a9ca7e0e2703700a7b60e79f400d1824fe87b8

  • SHA512

    542c8fbfe66ce56ab835d86bd8fc33ad21bd724cf3593a2bacc6d29442e019dde2423db8f7214df5ce8b6a5e78ebbcdabcd846cc0693e9f50bf7b5a7f26180da

  • SSDEEP

    196608:4xm50EF70ZaWLZ97vnC8LpS7+bI9cpSzj:iEt0Zak7aIA7kSzj

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\fc3dd46fae8bb958301a0c4d41a9ca7e0e2703700a7b60e79f400d1824fe87b8.exe
    "C:\Users\Admin\AppData\Local\Temp\fc3dd46fae8bb958301a0c4d41a9ca7e0e2703700a7b60e79f400d1824fe87b8.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2812
    • C:\Users\Admin\AppData\Local\Temp\is-QO47A.tmp\fc3dd46fae8bb958301a0c4d41a9ca7e0e2703700a7b60e79f400d1824fe87b8.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-QO47A.tmp\fc3dd46fae8bb958301a0c4d41a9ca7e0e2703700a7b60e79f400d1824fe87b8.tmp" /SL5="$901D8,7257737,121856,C:\Users\Admin\AppData\Local\Temp\fc3dd46fae8bb958301a0c4d41a9ca7e0e2703700a7b60e79f400d1824fe87b8.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3652
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:200
        • C:\Program Files (x86)\numGIF\numgif.exe
          "C:\Program Files (x86)\numGIF\numgif.exe" -i
          3⤵
          • Executes dropped EXE
          PID:4404
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 12
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:4504
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 12
            4⤵
              PID:1844
          • C:\Program Files (x86)\numGIF\numgif.exe
            "C:\Program Files (x86)\numGIF\numgif.exe" -s
            3⤵
            • Executes dropped EXE
            PID:4408

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

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

              Filesize

              1.3MB

              MD5

              b058ece2f0ef5dcf707916ae08e3bf9e

              SHA1

              c494a696ae6e4ffd203a0e733f36d9894b2e808e

              SHA256

              f1110b999e774e7671dc839d90ad4a3f6643147f3c92350f3d4f7e359f7bc1d0

              SHA512

              05e158dc0c3f4515ece393805b792ff0d13ed56693edbcec10126416b8ad0403a9cd43fab411982426f951cb79189618ab62537281253998a60469628e974e1b

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

              Filesize

              799KB

              MD5

              0c42e515d3c5dc3e3993a75fc73ac9d3

              SHA1

              eeece2e7ccd556885245a37f9e89854330c9da4e

              SHA256

              964e85b1d968fb752d146ca362d70bf5a72d592a08c05a758b24bae8ef34c4f6

              SHA512

              f6a6616db9925b4798ae0a7a5e985a6eecf0b4f7b8eb1a42cb00d6ae34095dc1705183ff34c92c107800599ebd262cf7d0469479465951a4955163026fadbfbc

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

              Filesize

              2.1MB

              MD5

              57ced71d2e317eabb615aa41744d1b1f

              SHA1

              6cc65d30c5fd466c87947a037b4b334150cd07c6

              SHA256

              063e3ba1e7b81c595bcda4226b7258730c769626de660452e5aefc7f0ad45737

              SHA512

              2c76683fcacdbe5497fd042424f1ac4da0cd74f62f0516e1bc77487bce7fed98b21836582e6ed8eee157bf854bc550dec6e4697919cd21adf76ae400fcb98662

            • C:\Users\Admin\AppData\Local\Temp\is-QO47A.tmp\fc3dd46fae8bb958301a0c4d41a9ca7e0e2703700a7b60e79f400d1824fe87b8.tmp

              Filesize

              687KB

              MD5

              f448d7f4b76e5c9c3a4eaff16a8b9b73

              SHA1

              31808f1ffa84c954376975b7cdb0007e6b762488

              SHA256

              7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

              SHA512

              f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

            • \Users\Admin\AppData\Local\Temp\is-4RCHS.tmp\_isetup\_iscrypt.dll

              Filesize

              2KB

              MD5

              a69559718ab506675e907fe49deb71e9

              SHA1

              bc8f404ffdb1960b50c12ff9413c893b56f2e36f

              SHA256

              2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

              SHA512

              e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

            • \Users\Admin\AppData\Local\Temp\is-4RCHS.tmp\_isetup\_isdecmp.dll

              Filesize

              19KB

              MD5

              3adaa386b671c2df3bae5b39dc093008

              SHA1

              067cf95fbdb922d81db58432c46930f86d23dded

              SHA256

              71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

              SHA512

              bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

            • memory/2812-159-0x0000000000400000-0x0000000000425000-memory.dmp

              Filesize

              148KB

            • memory/2812-0-0x0000000000400000-0x0000000000425000-memory.dmp

              Filesize

              148KB

            • memory/3652-9-0x00000000001F0000-0x00000000001F1000-memory.dmp

              Filesize

              4KB

            • memory/3652-162-0x00000000001F0000-0x00000000001F1000-memory.dmp

              Filesize

              4KB

            • memory/3652-160-0x0000000000400000-0x00000000004BC000-memory.dmp

              Filesize

              752KB

            • memory/4404-151-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4404-154-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4404-150-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4408-178-0x00000000007A0000-0x000000000083E000-memory.dmp

              Filesize

              632KB

            • memory/4408-179-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4408-157-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4408-165-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4408-166-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4408-169-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4408-172-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4408-175-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4408-158-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4408-161-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4408-182-0x00000000007A0000-0x000000000083E000-memory.dmp

              Filesize

              632KB

            • memory/4408-185-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4408-188-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4408-189-0x00000000007A0000-0x000000000083E000-memory.dmp

              Filesize

              632KB

            • memory/4408-192-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4408-195-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4408-198-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4408-202-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4408-205-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4408-208-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB