Analysis

  • max time kernel
    145s
  • max time network
    131s
  • platform
    windows10-1703_x64
  • resource
    win10-20231023-en
  • resource tags

    arch:x64arch:x86image:win10-20231023-enlocale:en-usos:windows10-1703-x64system
  • submitted
    12/12/2023, 14:47

General

  • Target

    a5a33a790cd44d76e80de5114cd7e68c189c7a63c6c48a62e7e5ac1c67227431.exe

  • Size

    7.2MB

  • MD5

    7c42388e70e73d7997fd3864a68fe512

  • SHA1

    8c576b96993bc3bbc352695a7a17c28798f793cf

  • SHA256

    a5a33a790cd44d76e80de5114cd7e68c189c7a63c6c48a62e7e5ac1c67227431

  • SHA512

    95b76d26a7cdf1cd1c712c69b53ca94bfdf46a31b279083c4acebe06a5ab96ce7822318fbd8ea2dcdfa6ff42afb3897732406e1d10cfdd0a5fb597399d9478f0

  • SSDEEP

    196608:pxm50EF70ZaWLZ97vnC8LpS7+bI9cpSzj:HEt0Zak7aIA7kSzj

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\a5a33a790cd44d76e80de5114cd7e68c189c7a63c6c48a62e7e5ac1c67227431.exe
    "C:\Users\Admin\AppData\Local\Temp\a5a33a790cd44d76e80de5114cd7e68c189c7a63c6c48a62e7e5ac1c67227431.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3008
    • C:\Users\Admin\AppData\Local\Temp\is-DP460.tmp\a5a33a790cd44d76e80de5114cd7e68c189c7a63c6c48a62e7e5ac1c67227431.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-DP460.tmp\a5a33a790cd44d76e80de5114cd7e68c189c7a63c6c48a62e7e5ac1c67227431.tmp" /SL5="$50232,7257737,121856,C:\Users\Admin\AppData\Local\Temp\a5a33a790cd44d76e80de5114cd7e68c189c7a63c6c48a62e7e5ac1c67227431.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2756
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:2324
        • C:\Program Files (x86)\numGIF\numgif.exe
          "C:\Program Files (x86)\numGIF\numgif.exe" -i
          3⤵
          • Executes dropped EXE
          PID:2408
        • C:\Program Files (x86)\numGIF\numgif.exe
          "C:\Program Files (x86)\numGIF\numgif.exe" -s
          3⤵
          • Executes dropped EXE
          PID:4576
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 12
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2056
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 12
            4⤵
              PID:4192

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

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

              Filesize

              1024KB

              MD5

              a57505123f4bdfca6293df74958ced0b

              SHA1

              1294622c88d1424958d578368d06d76e8401391e

              SHA256

              3ff61bcbbbf003036f11dfb96428367feafab87603e211d4a584ed34d9b50d70

              SHA512

              4cd079fa7ad1b0c88bf852b41151bfd93fd5f580f921886c6d859388fd025d01c0a6c84ac2bc2d75460c99afd04b54e7cff58463b40df2c90252693b93f19e87

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

              Filesize

              192KB

              MD5

              f6cea2c7852b850c0728b84a07d94263

              SHA1

              2ed82850de233e1501e4de8af051b397326cdf29

              SHA256

              1eb9178acc37f4e1e35d43d89a03087a7dcdea0e5f5a820f4e8f5482c63cf3db

              SHA512

              a22300ab6a5c0b9a5c618a6bb5441473ce81f18dbfa22e3c1455552fdb43b0a838e76014c1460c5c8eb69047939e50060ebdaf6d78889d25aaeeb51576426737

            • 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-DP460.tmp\a5a33a790cd44d76e80de5114cd7e68c189c7a63c6c48a62e7e5ac1c67227431.tmp

              Filesize

              687KB

              MD5

              f448d7f4b76e5c9c3a4eaff16a8b9b73

              SHA1

              31808f1ffa84c954376975b7cdb0007e6b762488

              SHA256

              7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

              SHA512

              f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

            • \Users\Admin\AppData\Local\Temp\is-N4OOD.tmp\_isetup\_iscrypt.dll

              Filesize

              2KB

              MD5

              a69559718ab506675e907fe49deb71e9

              SHA1

              bc8f404ffdb1960b50c12ff9413c893b56f2e36f

              SHA256

              2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

              SHA512

              e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

            • \Users\Admin\AppData\Local\Temp\is-N4OOD.tmp\_isetup\_isdecmp.dll

              Filesize

              19KB

              MD5

              3adaa386b671c2df3bae5b39dc093008

              SHA1

              067cf95fbdb922d81db58432c46930f86d23dded

              SHA256

              71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

              SHA512

              bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

            • memory/2408-150-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/2408-151-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/2408-153-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/2408-154-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/2756-160-0x0000000000400000-0x00000000004BC000-memory.dmp

              Filesize

              752KB

            • memory/2756-162-0x00000000001F0000-0x00000000001F1000-memory.dmp

              Filesize

              4KB

            • memory/2756-6-0x00000000001F0000-0x00000000001F1000-memory.dmp

              Filesize

              4KB

            • memory/3008-0-0x0000000000400000-0x0000000000425000-memory.dmp

              Filesize

              148KB

            • memory/3008-159-0x0000000000400000-0x0000000000425000-memory.dmp

              Filesize

              148KB

            • memory/4576-161-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4576-178-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4576-157-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4576-165-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4576-166-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4576-169-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4576-172-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4576-175-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4576-179-0x00000000008B0000-0x000000000094E000-memory.dmp

              Filesize

              632KB

            • memory/4576-158-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4576-184-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4576-187-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4576-188-0x00000000008B0000-0x000000000094E000-memory.dmp

              Filesize

              632KB

            • memory/4576-191-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4576-194-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4576-197-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4576-201-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4576-204-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB

            • memory/4576-207-0x0000000000400000-0x0000000000629000-memory.dmp

              Filesize

              2.2MB