Analysis

  • max time kernel
    144s
  • max time network
    133s
  • platform
    windows10-1703_x64
  • resource
    win10-20231020-en
  • resource tags

    arch:x64arch:x86image:win10-20231020-enlocale:en-usos:windows10-1703-x64system
  • submitted
    12-12-2023 15:47

General

  • Target

    4594dff51c4980116d55a6ee83fff1d8c01185835af48643047e346e2e829d72.exe

  • Size

    7.1MB

  • MD5

    0942a9e71444e1e115fc0009434bcea4

  • SHA1

    7578f74aaf4c600d9c5add98e630bf8babc0df0b

  • SHA256

    4594dff51c4980116d55a6ee83fff1d8c01185835af48643047e346e2e829d72

  • SHA512

    0aa91180faec25ef28fd61b0a2ed5439afa0edb04c19f6a932a6a2678b02958074884113a708d81de90917cfe601e3b43a2d6bd4809c4ec4ed820ffe5406d505

  • SSDEEP

    196608:Uxm5D5YUyRe7VvZKwamjGKAVW7R+gSoASGm8PvsLMwzj:iRepZKwaS79SoASGDP0Qwzj

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\4594dff51c4980116d55a6ee83fff1d8c01185835af48643047e346e2e829d72.exe
    "C:\Users\Admin\AppData\Local\Temp\4594dff51c4980116d55a6ee83fff1d8c01185835af48643047e346e2e829d72.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4516
    • C:\Users\Admin\AppData\Local\Temp\is-4CKR3.tmp\4594dff51c4980116d55a6ee83fff1d8c01185835af48643047e346e2e829d72.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-4CKR3.tmp\4594dff51c4980116d55a6ee83fff1d8c01185835af48643047e346e2e829d72.tmp" /SL5="$8021C,7235080,121856,C:\Users\Admin\AppData\Local\Temp\4594dff51c4980116d55a6ee83fff1d8c01185835af48643047e346e2e829d72.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1596
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:5068
        • C:\Program Files (x86)\numGIF\numgif.exe
          "C:\Program Files (x86)\numGIF\numgif.exe" -i
          3⤵
          • Executes dropped EXE
          PID:4596
        • C:\Program Files (x86)\numGIF\numgif.exe
          "C:\Program Files (x86)\numGIF\numgif.exe" -s
          3⤵
          • Executes dropped EXE
          PID:5024
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 12
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:552
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 12
            4⤵
              PID:4992

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        823KB

        MD5

        94bd4dde889d4275712e5bd8e41de25f

        SHA1

        004ccc5adbe027e492076656ee27c48a8b6a5bde

        SHA256

        dfe121417bfe0042ec74861060b65b2b2f46c681914f907654be5a026e020330

        SHA512

        f32ca0d69790264cd95fd1fc9068af3acd8c116938b5c7a235de617a9e9b22a9e76a3dd818db510f09301d5a3c797ac4524d9d1323e2d52938a84272922907da

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

        Filesize

        682KB

        MD5

        d08d8d8286ead6ed755fc6239477fdea

        SHA1

        1548ac58433ca1c280f2992a2e68939f6362877d

        SHA256

        e6158f022786429ebcfadec7e8722375136ed01c6facd01a54858c0b72e58077

        SHA512

        70628e69c843446933caa93070853987d1e3f61364a00219920c56c15d0c9e0884307a7ff009169b0601cdc0f2806c177c2641448ec30f8644f6656d8fa7c7e8

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

        Filesize

        46KB

        MD5

        de83c7345802277cad6659205e0a97cc

        SHA1

        47aa2af24a3cb35c76b45abdcfc6aa4c9845d019

        SHA256

        5d9e77961d77122beb0e460a3317adb6ee92883ddb4077ca739e3080f52ef107

        SHA512

        d78fbd724296b0f9ba0f13703b21af8d6846b79fef9803abad6e0bc90f3f60debdf04496db9f7fc00004fe7b7fd657a98a5a4a0c1b8aed1fb70622405d177f5a

      • C:\Users\Admin\AppData\Local\Temp\is-4CKR3.tmp\4594dff51c4980116d55a6ee83fff1d8c01185835af48643047e346e2e829d72.tmp

        Filesize

        687KB

        MD5

        f448d7f4b76e5c9c3a4eaff16a8b9b73

        SHA1

        31808f1ffa84c954376975b7cdb0007e6b762488

        SHA256

        7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

        SHA512

        f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

      • \Users\Admin\AppData\Local\Temp\is-UI19M.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • \Users\Admin\AppData\Local\Temp\is-UI19M.tmp\_isetup\_isdecmp.dll

        Filesize

        19KB

        MD5

        3adaa386b671c2df3bae5b39dc093008

        SHA1

        067cf95fbdb922d81db58432c46930f86d23dded

        SHA256

        71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

        SHA512

        bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

      • memory/1596-160-0x0000000000400000-0x00000000004BC000-memory.dmp

        Filesize

        752KB

      • memory/1596-6-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/1596-162-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/4516-0-0x0000000000400000-0x0000000000425000-memory.dmp

        Filesize

        148KB

      • memory/4516-159-0x0000000000400000-0x0000000000425000-memory.dmp

        Filesize

        148KB

      • memory/4596-150-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/4596-151-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/4596-154-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/4596-153-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/5024-161-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/5024-179-0x0000000000900000-0x000000000099E000-memory.dmp

        Filesize

        632KB

      • memory/5024-157-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/5024-165-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/5024-166-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/5024-169-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/5024-172-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/5024-175-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/5024-178-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/5024-158-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/5024-184-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/5024-187-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/5024-188-0x0000000000900000-0x000000000099E000-memory.dmp

        Filesize

        632KB

      • memory/5024-191-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/5024-194-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/5024-197-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/5024-201-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/5024-204-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB

      • memory/5024-207-0x0000000000400000-0x0000000000629000-memory.dmp

        Filesize

        2.2MB