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Analysis

  • max time kernel
    146s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/12/2023, 14:29

General

  • Target

    839f3d27d35ef395d53d0b24909a4dd154afeb365c90ffb92c733dc1f93c74a9.exe

  • Size

    7.2MB

  • MD5

    02aeaaebdc32475300c604c55fb23418

  • SHA1

    521bf9b722736e0e8d2b4f656c29ac28065b9051

  • SHA256

    839f3d27d35ef395d53d0b24909a4dd154afeb365c90ffb92c733dc1f93c74a9

  • SHA512

    74613394d330b9ed1e605a0ba336d60f51fa7fe1c35a3a1e1faaedc37e81c5fe1c4d20242e9333d1daefc914dba549293dc7bce884fc5a022660aea02ee85f4e

  • SSDEEP

    196608:1xm50EF70ZaWLZ97vnC8LpS7+bI9cpSzj:jEt0Zak7aIA7kSzj

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\839f3d27d35ef395d53d0b24909a4dd154afeb365c90ffb92c733dc1f93c74a9.exe
    "C:\Users\Admin\AppData\Local\Temp\839f3d27d35ef395d53d0b24909a4dd154afeb365c90ffb92c733dc1f93c74a9.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1220
    • C:\Users\Admin\AppData\Local\Temp\is-VIA9C.tmp\839f3d27d35ef395d53d0b24909a4dd154afeb365c90ffb92c733dc1f93c74a9.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-VIA9C.tmp\839f3d27d35ef395d53d0b24909a4dd154afeb365c90ffb92c733dc1f93c74a9.tmp" /SL5="$4021A,7257737,121856,C:\Users\Admin\AppData\Local\Temp\839f3d27d35ef395d53d0b24909a4dd154afeb365c90ffb92c733dc1f93c74a9.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:5112
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:2984
        • C:\Program Files (x86)\numGIF\numgif.exe
          "C:\Program Files (x86)\numGIF\numgif.exe" -i
          3⤵
          • Executes dropped EXE
          PID:2996
        • C:\Program Files (x86)\numGIF\numgif.exe
          "C:\Program Files (x86)\numGIF\numgif.exe" -s
          3⤵
          • Executes dropped EXE
          PID:4812
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 12
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2880
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 12
            4⤵
              PID:4768

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        1.8MB

        MD5

        bf9a2913254cbdc63a5cbc884dd1c006

        SHA1

        d561f17c93acf2937188ce7e37a4d2a7eac427d5

        SHA256

        725533e2c2c546f8228312c72d8ac2de3b115cf3396d90173054c133638c6d1d

        SHA512

        95dc9df18a1a0d7c72b2fe2765dc35a3546326f81bc18d194430cbdf7b0b4aa725b4096b88f8d74d204cce42397b9f7bcc07c4514a4541669a0521623269ed5d

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

        Filesize

        1.1MB

        MD5

        8ca5d0cd1ce09340db8f970ac5b1cf8b

        SHA1

        67c418a05c90bdb937e28c33d8152d484e93a579

        SHA256

        4dc3da3fe3a766df4fa63a382596eba6f40dcf2c39db73ff40c36beba5f55475

        SHA512

        681859e621af3875d3b32ab82131eaced069c1f943f9fdeb65921bac7a326865fcb156b5843a7e324e168749ddfff6728b2d1b7f6ffb95d4245293323dd08669

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

        Filesize

        830KB

        MD5

        3d4eeebdcfbfc05a3e575a4316014941

        SHA1

        d40cf049f33f8be579351551bb949c719cfb59eb

        SHA256

        42322d2e20d17f06e81e8113f1c65152e543259da6e953e265d6c10fb894ea38

        SHA512

        eb36c96ffe88d3cfccf274d33b67c6d20f426dca02d542e9ebb43e53366a7d40d39959b0d76d9c0ac6e847b9ce37e64db1144c4304ee118d44d6469d7d39cbcb

      • C:\Users\Admin\AppData\Local\Temp\is-S72GI.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • C:\Users\Admin\AppData\Local\Temp\is-S72GI.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • C:\Users\Admin\AppData\Local\Temp\is-VIA9C.tmp\839f3d27d35ef395d53d0b24909a4dd154afeb365c90ffb92c733dc1f93c74a9.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • memory/1220-0-0x0000000000400000-0x0000000000425000-memory.dmp

        Filesize

        148KB

      • memory/1220-160-0x0000000000400000-0x0000000000425000-memory.dmp

        Filesize

        148KB

      • memory/1220-2-0x0000000000400000-0x0000000000425000-memory.dmp

        Filesize

        148KB

      • memory/2996-151-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/2996-152-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/2996-155-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/2996-154-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/4812-186-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/4812-180-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/4812-158-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/4812-208-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/4812-162-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/4812-205-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/4812-166-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/4812-167-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/4812-170-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/4812-173-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/4812-176-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/4812-159-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/4812-179-0x00000000008F0000-0x000000000098E000-memory.dmp

        Filesize

        632KB

      • memory/4812-183-0x00000000008F0000-0x000000000098E000-memory.dmp

        Filesize

        632KB

      • memory/4812-202-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/4812-189-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/4812-190-0x00000000008F0000-0x000000000098E000-memory.dmp

        Filesize

        632KB

      • memory/4812-193-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/4812-196-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/4812-199-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/5112-8-0x0000000002340000-0x0000000002341000-memory.dmp

        Filesize

        4KB

      • memory/5112-163-0x0000000002340000-0x0000000002341000-memory.dmp

        Filesize

        4KB

      • memory/5112-161-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB