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Analysis

  • max time kernel
    145s
  • max time network
    149s
  • 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, 15:31

General

  • Target

    81c5dd6064b5aecf5af0fe9e959cdcc5051e9fec3ef5c7338f6e032de1ae5b74.exe

  • Size

    7.1MB

  • MD5

    1145bfe585062011eba8ec3d412b59ac

  • SHA1

    aa6520e35385cb10681a9ffa19aa0b2cbd43b538

  • SHA256

    81c5dd6064b5aecf5af0fe9e959cdcc5051e9fec3ef5c7338f6e032de1ae5b74

  • SHA512

    6371d5d5a9b20be2d8571b41075c36d656e328e6e765aea32446bd4009157efc40da9830933a158805920c37a8fcee87a024e44d8d19f8b8f3b0dd45e4b51566

  • SSDEEP

    196608:Vxm5D5YUyRe7VvZKwamjGKAVW7R+gSoASGm8PvsLMwzj:lRepZKwaS79SoASGDP0Qwzj

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Unexpected DNS network traffic destination 2 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\81c5dd6064b5aecf5af0fe9e959cdcc5051e9fec3ef5c7338f6e032de1ae5b74.exe
    "C:\Users\Admin\AppData\Local\Temp\81c5dd6064b5aecf5af0fe9e959cdcc5051e9fec3ef5c7338f6e032de1ae5b74.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4260
    • C:\Users\Admin\AppData\Local\Temp\is-F42N2.tmp\81c5dd6064b5aecf5af0fe9e959cdcc5051e9fec3ef5c7338f6e032de1ae5b74.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-F42N2.tmp\81c5dd6064b5aecf5af0fe9e959cdcc5051e9fec3ef5c7338f6e032de1ae5b74.tmp" /SL5="$80044,7235080,121856,C:\Users\Admin\AppData\Local\Temp\81c5dd6064b5aecf5af0fe9e959cdcc5051e9fec3ef5c7338f6e032de1ae5b74.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2916
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:1192
        • C:\Program Files (x86)\numGIF\numgif.exe
          "C:\Program Files (x86)\numGIF\numgif.exe" -i
          3⤵
          • Executes dropped EXE
          PID:1820
        • C:\Program Files (x86)\numGIF\numgif.exe
          "C:\Program Files (x86)\numGIF\numgif.exe" -s
          3⤵
          • Executes dropped EXE
          PID:2884
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 12
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2956
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 12
            4⤵
              PID:4632

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        2.1MB

        MD5

        95ed12773ef7a56b65865ed9cc8ae391

        SHA1

        3ee35b36071df39b2743fd1cb449e1d274a2b976

        SHA256

        7cc9b31f29184290d59f521f08963feebcccd59fa7e23553a7e4770d3e1fcaef

        SHA512

        dc415bdaa91eb5c6bb61f0f986a20ca48dc4455fcf3dccb40be4e2dddb331bfce677fcf92f10fdafd536f47e079a7ea02e85b93cbf806d9eb915b296f053a288

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

        Filesize

        1.5MB

        MD5

        cc5358cb64bad739706d1ec1360004d3

        SHA1

        6ecd8ebeb19042ad06bf258f707e96a23025f90c

        SHA256

        1712bfe82be6dfe09450764d5f75d513c8eb4f6f40e5c35675b0c00cf70b08e5

        SHA512

        b2723237711a0987dae683b0a40d37a2f6949cfaf4ea524c6c17b8bb9e6e56455c54a17ee306ad1ce403fa733f6b537a10404673b2c8d58edc07f19aa72a2248

      • C:\Users\Admin\AppData\Local\Temp\is-8HRDF.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • C:\Users\Admin\AppData\Local\Temp\is-8HRDF.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • C:\Users\Admin\AppData\Local\Temp\is-F42N2.tmp\81c5dd6064b5aecf5af0fe9e959cdcc5051e9fec3ef5c7338f6e032de1ae5b74.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • memory/1820-153-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/1820-155-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/1820-151-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/1820-152-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/2884-185-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/2884-172-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/2884-208-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/2884-158-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/2884-204-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/2884-201-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/2884-161-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/2884-198-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/2884-165-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/2884-166-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/2884-169-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/2884-195-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/2884-175-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/2884-178-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/2884-180-0x0000000000920000-0x00000000009BE000-memory.dmp

        Filesize

        632KB

      • memory/2884-192-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/2884-188-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/2884-189-0x0000000000920000-0x00000000009BE000-memory.dmp

        Filesize

        632KB

      • memory/2916-7-0x0000000002350000-0x0000000002351000-memory.dmp

        Filesize

        4KB

      • memory/2916-162-0x0000000002350000-0x0000000002351000-memory.dmp

        Filesize

        4KB

      • memory/2916-160-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/4260-0-0x0000000000400000-0x0000000000425000-memory.dmp

        Filesize

        148KB

      • memory/4260-159-0x0000000000400000-0x0000000000425000-memory.dmp

        Filesize

        148KB

      • memory/4260-2-0x0000000000400000-0x0000000000425000-memory.dmp

        Filesize

        148KB