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Analysis

  • max time kernel
    145s
  • max time network
    148s
  • platform
    windows10-1703_x64
  • resource
    win10-20231129-en
  • resource tags

    arch:x64arch:x86image:win10-20231129-enlocale:en-usos:windows10-1703-x64system
  • submitted
    12/12/2023, 11:03

General

  • Target

    84aa3d4536efb8e6d8d608bee8a3c2a3217e838487935d745a4948f1e4bfd8a8.exe

  • Size

    7.2MB

  • MD5

    9deed3c0e2fae04aaeff3a822836f6ea

  • SHA1

    bcd122feb484aac35720507c7cb75716a6cb2d8b

  • SHA256

    84aa3d4536efb8e6d8d608bee8a3c2a3217e838487935d745a4948f1e4bfd8a8

  • SHA512

    218be551d5cf82f2f87cd25e4504a341a3e8cc5a143d4aed724b24917e5952aee44c8f5c55a32fe950bc1194210bbee9fb8836f09b89e012b2d445f6e90e5876

  • SSDEEP

    196608:Bxm5vSfkhLnRaUXNvQKOmYuX5ORBs2J32NS8Pu2XYeWs8hckg7inWzj:ASfs8WIKOluX+stSCvR9L9GnWzj

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Unexpected DNS network traffic destination 3 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\84aa3d4536efb8e6d8d608bee8a3c2a3217e838487935d745a4948f1e4bfd8a8.exe
    "C:\Users\Admin\AppData\Local\Temp\84aa3d4536efb8e6d8d608bee8a3c2a3217e838487935d745a4948f1e4bfd8a8.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3624
    • C:\Users\Admin\AppData\Local\Temp\is-A3343.tmp\84aa3d4536efb8e6d8d608bee8a3c2a3217e838487935d745a4948f1e4bfd8a8.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-A3343.tmp\84aa3d4536efb8e6d8d608bee8a3c2a3217e838487935d745a4948f1e4bfd8a8.tmp" /SL5="$80202,7264750,121856,C:\Users\Admin\AppData\Local\Temp\84aa3d4536efb8e6d8d608bee8a3c2a3217e838487935d745a4948f1e4bfd8a8.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4112
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:2408
        • C:\Program Files (x86)\numGIF\numgif.exe
          "C:\Program Files (x86)\numGIF\numgif.exe" -i
          3⤵
          • Executes dropped EXE
          PID:3448
        • C:\Program Files (x86)\numGIF\numgif.exe
          "C:\Program Files (x86)\numGIF\numgif.exe" -s
          3⤵
          • Executes dropped EXE
          PID:1856
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 12
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2080
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 12
            4⤵
              PID:4736

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        1.5MB

        MD5

        b518e321c605db174af5a02aaaace5e4

        SHA1

        741f425956065d9131388de6a3194e21e6e7c6d2

        SHA256

        25eb8ce447d9b289f6c4485a110079c8f23d12880318222d1a485271a46963be

        SHA512

        1cda1d45f514ffd5b2ee7ecc5df0d9009642fb7783efe7fe209f42cdfc2d72c90a901fe4c42542b9032b0e7c283a3d35f6a334ee606a57f94f5cbc61ef42dae2

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

        Filesize

        1.4MB

        MD5

        e944a66fd8d52047b869a888593ca0d9

        SHA1

        a3d07a30808c0a15d74729fbdc5f2e80ed3ea486

        SHA256

        16468105325170a46c70953e26d4739aace0c900fea64ba58a5b416e879b979c

        SHA512

        52bbf45cd033eb667d4293e0dea8288cc65980aca8db6ba43b695f3c9d0fb7cf7a158bdef93ef2897e0134a7e1d18151e5bf0cf33a01e4706d62c65bd3ea677c

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

        Filesize

        1.6MB

        MD5

        ac0a2ececef5a5c370a3d6eebd289660

        SHA1

        939b1209ffe20d2917ab8272f6fdcea7835565c1

        SHA256

        ec227c27853f125a4bfd37d5592ed65e6a1fab2e29ca08b71e7c3819fd3deff4

        SHA512

        fd30a42ef020c6db1c699ab5fbbd468a243832f4b1e4c837a87aa683e105ca76df3653903154056feb14950c68471d08f900bd3a5aa2a628c7cd0ffa0d8c519c

      • C:\Users\Admin\AppData\Local\Temp\is-A3343.tmp\84aa3d4536efb8e6d8d608bee8a3c2a3217e838487935d745a4948f1e4bfd8a8.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • \Users\Admin\AppData\Local\Temp\is-8FJBM.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • \Users\Admin\AppData\Local\Temp\is-8FJBM.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • memory/1856-181-0x0000000000400000-0x0000000000628000-memory.dmp

        Filesize

        2.2MB

      • memory/1856-189-0x00000000007F0000-0x000000000088E000-memory.dmp

        Filesize

        632KB

      • memory/1856-207-0x0000000000400000-0x0000000000628000-memory.dmp

        Filesize

        2.2MB

      • memory/1856-204-0x0000000000400000-0x0000000000628000-memory.dmp

        Filesize

        2.2MB

      • memory/1856-201-0x0000000000400000-0x0000000000628000-memory.dmp

        Filesize

        2.2MB

      • memory/1856-198-0x0000000000400000-0x0000000000628000-memory.dmp

        Filesize

        2.2MB

      • memory/1856-157-0x0000000000400000-0x0000000000628000-memory.dmp

        Filesize

        2.2MB

      • memory/1856-158-0x0000000000400000-0x0000000000628000-memory.dmp

        Filesize

        2.2MB

      • memory/1856-195-0x0000000000400000-0x0000000000628000-memory.dmp

        Filesize

        2.2MB

      • memory/1856-192-0x0000000000400000-0x0000000000628000-memory.dmp

        Filesize

        2.2MB

      • memory/1856-161-0x0000000000400000-0x0000000000628000-memory.dmp

        Filesize

        2.2MB

      • memory/1856-188-0x0000000000400000-0x0000000000628000-memory.dmp

        Filesize

        2.2MB

      • memory/1856-165-0x0000000000400000-0x0000000000628000-memory.dmp

        Filesize

        2.2MB

      • memory/1856-166-0x0000000000400000-0x0000000000628000-memory.dmp

        Filesize

        2.2MB

      • memory/1856-169-0x0000000000400000-0x0000000000628000-memory.dmp

        Filesize

        2.2MB

      • memory/1856-172-0x0000000000400000-0x0000000000628000-memory.dmp

        Filesize

        2.2MB

      • memory/1856-175-0x0000000000400000-0x0000000000628000-memory.dmp

        Filesize

        2.2MB

      • memory/1856-178-0x00000000007F0000-0x000000000088E000-memory.dmp

        Filesize

        632KB

      • memory/1856-185-0x0000000000400000-0x0000000000628000-memory.dmp

        Filesize

        2.2MB

      • memory/1856-182-0x00000000007F0000-0x000000000088E000-memory.dmp

        Filesize

        632KB

      • memory/3448-150-0x0000000000400000-0x0000000000628000-memory.dmp

        Filesize

        2.2MB

      • memory/3448-154-0x0000000000400000-0x0000000000628000-memory.dmp

        Filesize

        2.2MB

      • memory/3448-153-0x0000000000400000-0x0000000000628000-memory.dmp

        Filesize

        2.2MB

      • memory/3448-151-0x0000000000400000-0x0000000000628000-memory.dmp

        Filesize

        2.2MB

      • memory/3624-0-0x0000000000400000-0x0000000000425000-memory.dmp

        Filesize

        148KB

      • memory/3624-159-0x0000000000400000-0x0000000000425000-memory.dmp

        Filesize

        148KB

      • memory/4112-162-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/4112-160-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/4112-9-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB