Analysis

  • max time kernel
    149s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20231023-en
  • resource tags

    arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
  • submitted
    11/12/2023, 16:54

General

  • Target

    tuc6.exe

  • Size

    7.5MB

  • MD5

    81bd25de5709a52e3856db3eb59ba0a6

  • SHA1

    d8bff0f962df4094ea9fefecca5b4be9ae5d880e

  • SHA256

    a2eb1636200cc61142db562bbbba5257f3b1ee99a9b6a57edc245ab4422a4af3

  • SHA512

    456586c9d2298bf68c564626c2c1a25001979f82c743e21f68c8beca95d3c8229aae070c98d4bb6fb47f277b0c5ba07e0f2a937bf4189f2cd2b13b5017e60d0d

  • SSDEEP

    196608:Oq/iLRC0OLkYNew6tjCtD2RQVsBp4UAzj:OHC9Lkuew6t2oCO9Azj

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 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 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tuc6.exe
    "C:\Users\Admin\AppData\Local\Temp\tuc6.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2800
    • C:\Users\Admin\AppData\Local\Temp\is-E735N.tmp\tuc6.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-E735N.tmp\tuc6.tmp" /SL5="$70122,7577497,68096,C:\Users\Admin\AppData\Local\Temp\tuc6.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1624
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:2408
        • C:\Program Files (x86)\PlayGIF\gifplayer.exe
          "C:\Program Files (x86)\PlayGIF\gifplayer.exe" -i
          3⤵
          • Executes dropped EXE
          PID:808
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 11
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1828
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 11
            4⤵
              PID:1916
          • C:\Program Files (x86)\PlayGIF\gifplayer.exe
            "C:\Program Files (x86)\PlayGIF\gifplayer.exe" -s
            3⤵
            • Executes dropped EXE
            PID:1944

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Program Files (x86)\PlayGIF\gifplayer.exe

        Filesize

        1.8MB

        MD5

        93892afd5a8753ab978b3ea9f4261d3e

        SHA1

        01523c696e09071c9475171c283903196e156910

        SHA256

        ec54741ebe62c27cd1857e6949f48b09ff24d1850af92b7334054fa90af3d3a1

        SHA512

        fdf92accfc584379491afd2aef1951d956050004324e79fccfcfaa9ef83c6ee68c06ee7ab4d5d18bb631cce160914e6b3ebc8b7a21f6ed3768b767f519ecb444

      • C:\Program Files (x86)\PlayGIF\gifplayer.exe

        Filesize

        2.4MB

        MD5

        9056116e76422c73266bbb874b76fb22

        SHA1

        224f0788f1900b92a97d00fba7db9ffb1ad0952f

        SHA256

        56b59bebfedf9415aa1de40f8881a44238e587685c9d0eea7d23d0ad7cd41952

        SHA512

        beefdbee09c77983befb3ea64788b258831f7569009730c773a3e545ef2112a7d46e9f44082286fea4153d439ec138265482a14b88ad9dcfcad5426134d107ff

      • \Program Files (x86)\PlayGIF\gifplayer.exe

        Filesize

        1.1MB

        MD5

        bd45369fc4fe4c3fe50bbdd6249d0333

        SHA1

        5f66af00795c9a00df9015979ac8ae5b41a896a4

        SHA256

        0f11ccda69343c2aef4b119da218b2e4b257fcefc2df2f2bf8c9bb9c6e55ac69

        SHA512

        d7196f1adae253716b9aca1e7ec6858e7810677461fb513348ea6041d8b206943f259f8cfc342643f2e134ca0614980434bfaceec89d5d7bdba6713dccd41404

      • \Users\Admin\AppData\Local\Temp\is-E735N.tmp\tuc6.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • \Users\Admin\AppData\Local\Temp\is-RF0H3.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • \Users\Admin\AppData\Local\Temp\is-RF0H3.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • \Users\Admin\AppData\Local\Temp\is-RF0H3.tmp\_isetup\_shfoldr.dll

        Filesize

        22KB

        MD5

        92dc6ef532fbb4a5c3201469a5b5eb63

        SHA1

        3e89ff837147c16b4e41c30d6c796374e0b8e62c

        SHA256

        9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

        SHA512

        9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

      • memory/808-153-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/808-154-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/808-155-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/808-158-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/1624-164-0x00000000001D0000-0x00000000001D1000-memory.dmp

        Filesize

        4KB

      • memory/1624-152-0x0000000003510000-0x0000000003776000-memory.dmp

        Filesize

        2.4MB

      • memory/1624-8-0x00000000001D0000-0x00000000001D1000-memory.dmp

        Filesize

        4KB

      • memory/1624-167-0x0000000003510000-0x0000000003776000-memory.dmp

        Filesize

        2.4MB

      • memory/1624-161-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/1944-165-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/1944-183-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/1944-211-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/1944-208-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/1944-169-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/1944-172-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/1944-173-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/1944-176-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/1944-181-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/1944-163-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/1944-185-0x00000000027D0000-0x000000000286E000-memory.dmp

        Filesize

        632KB

      • memory/1944-190-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/1944-191-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/1944-194-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/1944-197-0x00000000027D0000-0x000000000286E000-memory.dmp

        Filesize

        632KB

      • memory/1944-198-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/1944-203-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/1944-205-0x0000000000400000-0x0000000000666000-memory.dmp

        Filesize

        2.4MB

      • memory/2800-160-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB

      • memory/2800-1-0x0000000000400000-0x0000000000418000-memory.dmp

        Filesize

        96KB