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Analysis

  • max time kernel
    144s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/11/2023, 10:14

General

  • Target

    c045ac33bd87b1949563a9022944db755da12113adf7a0c955eb5f282b7e230c.exe

  • Size

    3.3MB

  • MD5

    e9d6ce434f6f640c3fd18b0097c3e066

  • SHA1

    bd834f75d87efbd0e2ff53fb2a54d53d2f58cf22

  • SHA256

    c045ac33bd87b1949563a9022944db755da12113adf7a0c955eb5f282b7e230c

  • SHA512

    b01f070b996abfc8c16b16a12de2534801b99f0237ebeadfbf8e899d3865ce96ce192cc860e0fd7c77ceaaeafb929187ebe85a211b013437c0dfac8a706cf8d9

  • SSDEEP

    98304:7sOoX6Vy6JPvMmZQb8Lny4UqjRynQzKkxbH6dlE:mX6o/mZcAy4Xj+Gfwdu

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Unexpected DNS network traffic destination 2 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 19 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Runs net.exe
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c045ac33bd87b1949563a9022944db755da12113adf7a0c955eb5f282b7e230c.exe
    "C:\Users\Admin\AppData\Local\Temp\c045ac33bd87b1949563a9022944db755da12113adf7a0c955eb5f282b7e230c.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3348
    • C:\Users\Admin\AppData\Local\Temp\is-5SL8B.tmp\c045ac33bd87b1949563a9022944db755da12113adf7a0c955eb5f282b7e230c.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-5SL8B.tmp\c045ac33bd87b1949563a9022944db755da12113adf7a0c955eb5f282b7e230c.tmp" /SL5="$C0226,3245822,76288,C:\Users\Admin\AppData\Local\Temp\c045ac33bd87b1949563a9022944db755da12113adf7a0c955eb5f282b7e230c.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:2892
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:4924
        • C:\Program Files (x86)\Common Files\BVSMPEG4\mpeg4codec.exe
          "C:\Program Files (x86)\Common Files\BVSMPEG4\mpeg4codec.exe" -i
          3⤵
          • Executes dropped EXE
          PID:4540
        • C:\Program Files (x86)\Common Files\BVSMPEG4\mpeg4codec.exe
          "C:\Program Files (x86)\Common Files\BVSMPEG4\mpeg4codec.exe" -s
          3⤵
          • Executes dropped EXE
          PID:1804
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 28
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:4120
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 28
            4⤵
              PID:1728

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Program Files (x86)\Common Files\BVSMPEG4\mpeg4codec.exe

        Filesize

        3.8MB

        MD5

        a863cd83ad9b26cf86d9a916a5505134

        SHA1

        465f99123bfde43b7d5e841bb445f4428a9c63ae

        SHA256

        1e5366ce3d44c99dde2efbc19ef660beddffe65bd98a7b02e25f91f27b3c3805

        SHA512

        1879c5f2249be0e5dc97ecb4c73322e63c77725c8629efcefb33b71fe1f7f1f7b3a7696d311a5eac454ce4c8b5f013bdef23db30cc1ebd18aea75ce32c08a660

      • C:\Program Files (x86)\Common Files\BVSMPEG4\mpeg4codec.exe

        Filesize

        3.8MB

        MD5

        a863cd83ad9b26cf86d9a916a5505134

        SHA1

        465f99123bfde43b7d5e841bb445f4428a9c63ae

        SHA256

        1e5366ce3d44c99dde2efbc19ef660beddffe65bd98a7b02e25f91f27b3c3805

        SHA512

        1879c5f2249be0e5dc97ecb4c73322e63c77725c8629efcefb33b71fe1f7f1f7b3a7696d311a5eac454ce4c8b5f013bdef23db30cc1ebd18aea75ce32c08a660

      • C:\Program Files (x86)\Common Files\BVSMPEG4\mpeg4codec.exe

        Filesize

        3.8MB

        MD5

        a863cd83ad9b26cf86d9a916a5505134

        SHA1

        465f99123bfde43b7d5e841bb445f4428a9c63ae

        SHA256

        1e5366ce3d44c99dde2efbc19ef660beddffe65bd98a7b02e25f91f27b3c3805

        SHA512

        1879c5f2249be0e5dc97ecb4c73322e63c77725c8629efcefb33b71fe1f7f1f7b3a7696d311a5eac454ce4c8b5f013bdef23db30cc1ebd18aea75ce32c08a660

      • C:\Users\Admin\AppData\Local\Temp\is-5SL8B.tmp\c045ac33bd87b1949563a9022944db755da12113adf7a0c955eb5f282b7e230c.tmp

        Filesize

        683KB

        MD5

        f507ce43ea08d1721816ad4b0e090f50

        SHA1

        e4f02bcd410bddabea4c741838d9a88386547629

        SHA256

        d2218bde27d66f28e3caf15e899653a9357ebdc7adf9a763b687f6c03c93e5e1

        SHA512

        37b2f92df632f75447572df840a236ef01021e8291536bf2e8156179333f770afdd8bcbf50cb05bbdbdaa53c00ace46119290800b115823ea035a2389a3f6693

      • C:\Users\Admin\AppData\Local\Temp\is-5SL8B.tmp\c045ac33bd87b1949563a9022944db755da12113adf7a0c955eb5f282b7e230c.tmp

        Filesize

        683KB

        MD5

        f507ce43ea08d1721816ad4b0e090f50

        SHA1

        e4f02bcd410bddabea4c741838d9a88386547629

        SHA256

        d2218bde27d66f28e3caf15e899653a9357ebdc7adf9a763b687f6c03c93e5e1

        SHA512

        37b2f92df632f75447572df840a236ef01021e8291536bf2e8156179333f770afdd8bcbf50cb05bbdbdaa53c00ace46119290800b115823ea035a2389a3f6693

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

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

        Filesize

        32KB

        MD5

        b6f11a0ab7715f570f45900a1fe84732

        SHA1

        77b1201e535445af5ea94c1b03c0a1c34d67a77b

        SHA256

        e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67

        SHA512

        78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

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

        Filesize

        32KB

        MD5

        b6f11a0ab7715f570f45900a1fe84732

        SHA1

        77b1201e535445af5ea94c1b03c0a1c34d67a77b

        SHA256

        e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67

        SHA512

        78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

      • memory/1804-95-0x0000000000400000-0x00000000007D4000-memory.dmp

        Filesize

        3.8MB

      • memory/1804-76-0x0000000000400000-0x00000000007D4000-memory.dmp

        Filesize

        3.8MB

      • memory/1804-118-0x0000000000400000-0x00000000007D4000-memory.dmp

        Filesize

        3.8MB

      • memory/1804-114-0x0000000000400000-0x00000000007D4000-memory.dmp

        Filesize

        3.8MB

      • memory/1804-111-0x0000000000400000-0x00000000007D4000-memory.dmp

        Filesize

        3.8MB

      • memory/1804-108-0x0000000000400000-0x00000000007D4000-memory.dmp

        Filesize

        3.8MB

      • memory/1804-67-0x0000000000400000-0x00000000007D4000-memory.dmp

        Filesize

        3.8MB

      • memory/1804-68-0x0000000000400000-0x00000000007D4000-memory.dmp

        Filesize

        3.8MB

      • memory/1804-105-0x0000000000400000-0x00000000007D4000-memory.dmp

        Filesize

        3.8MB

      • memory/1804-102-0x0000000000400000-0x00000000007D4000-memory.dmp

        Filesize

        3.8MB

      • memory/1804-71-0x0000000000400000-0x00000000007D4000-memory.dmp

        Filesize

        3.8MB

      • memory/1804-99-0x00000000009B0000-0x0000000000A5D000-memory.dmp

        Filesize

        692KB

      • memory/1804-75-0x0000000000400000-0x00000000007D4000-memory.dmp

        Filesize

        3.8MB

      • memory/1804-98-0x0000000000400000-0x00000000007D4000-memory.dmp

        Filesize

        3.8MB

      • memory/1804-79-0x0000000000400000-0x00000000007D4000-memory.dmp

        Filesize

        3.8MB

      • memory/1804-82-0x0000000000400000-0x00000000007D4000-memory.dmp

        Filesize

        3.8MB

      • memory/1804-85-0x0000000000400000-0x00000000007D4000-memory.dmp

        Filesize

        3.8MB

      • memory/1804-88-0x0000000000400000-0x00000000007D4000-memory.dmp

        Filesize

        3.8MB

      • memory/1804-90-0x00000000009B0000-0x0000000000A5D000-memory.dmp

        Filesize

        692KB

      • memory/2892-72-0x0000000002200000-0x0000000002201000-memory.dmp

        Filesize

        4KB

      • memory/2892-70-0x0000000000400000-0x00000000004BA000-memory.dmp

        Filesize

        744KB

      • memory/2892-6-0x0000000002200000-0x0000000002201000-memory.dmp

        Filesize

        4KB

      • memory/3348-0-0x0000000000400000-0x000000000041A000-memory.dmp

        Filesize

        104KB

      • memory/3348-69-0x0000000000400000-0x000000000041A000-memory.dmp

        Filesize

        104KB

      • memory/4540-60-0x0000000000400000-0x00000000007D4000-memory.dmp

        Filesize

        3.8MB

      • memory/4540-64-0x0000000000400000-0x00000000007D4000-memory.dmp

        Filesize

        3.8MB

      • memory/4540-63-0x0000000000400000-0x00000000007D4000-memory.dmp

        Filesize

        3.8MB

      • memory/4540-59-0x0000000000400000-0x00000000007D4000-memory.dmp

        Filesize

        3.8MB