Analysis

  • max time kernel
    147s
  • max time network
    147s
  • 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, 06:08

General

  • Target

    94bd392b429e8da55d8707dea8e7dafde3476598c9631d4125b9f65ba9422bee.exe

  • Size

    3.3MB

  • MD5

    84eaa4e4b350ac64e0a7e57f65b43721

  • SHA1

    35cc99e913aa0fb02c7adce5a5591478137e151b

  • SHA256

    94bd392b429e8da55d8707dea8e7dafde3476598c9631d4125b9f65ba9422bee

  • SHA512

    3def064e1995efec255687fdab2971516983a12f0d588d58b85fd44e6e8daa563e2f915ac34e92e65b149db9c22f8bfa898e95d71f00e1954cdf1ea7eba196cd

  • SSDEEP

    98304:osOoX6Vy6JPvMmZQb8Lny4UqjRynQzKkxbH6dlE:5X6o/mZcAy4Xj+Gfwdu

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 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\94bd392b429e8da55d8707dea8e7dafde3476598c9631d4125b9f65ba9422bee.exe
    "C:\Users\Admin\AppData\Local\Temp\94bd392b429e8da55d8707dea8e7dafde3476598c9631d4125b9f65ba9422bee.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:212
    • C:\Users\Admin\AppData\Local\Temp\is-RP57N.tmp\94bd392b429e8da55d8707dea8e7dafde3476598c9631d4125b9f65ba9422bee.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-RP57N.tmp\94bd392b429e8da55d8707dea8e7dafde3476598c9631d4125b9f65ba9422bee.tmp" /SL5="$401EC,3245822,76288,C:\Users\Admin\AppData\Local\Temp\94bd392b429e8da55d8707dea8e7dafde3476598c9631d4125b9f65ba9422bee.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:4856
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:2228
        • C:\Program Files (x86)\Common Files\BVSMPEG4\mpeg4codec.exe
          "C:\Program Files (x86)\Common Files\BVSMPEG4\mpeg4codec.exe" -i
          3⤵
          • Executes dropped EXE
          PID:3564
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 28
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:4868
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 28
            4⤵
              PID:3680
          • C:\Program Files (x86)\Common Files\BVSMPEG4\mpeg4codec.exe
            "C:\Program Files (x86)\Common Files\BVSMPEG4\mpeg4codec.exe" -s
            3⤵
            • Executes dropped EXE
            PID:3496

      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-RP57N.tmp\94bd392b429e8da55d8707dea8e7dafde3476598c9631d4125b9f65ba9422bee.tmp

              Filesize

              683KB

              MD5

              f507ce43ea08d1721816ad4b0e090f50

              SHA1

              e4f02bcd410bddabea4c741838d9a88386547629

              SHA256

              d2218bde27d66f28e3caf15e899653a9357ebdc7adf9a763b687f6c03c93e5e1

              SHA512

              37b2f92df632f75447572df840a236ef01021e8291536bf2e8156179333f770afdd8bcbf50cb05bbdbdaa53c00ace46119290800b115823ea035a2389a3f6693

            • C:\Users\Admin\AppData\Local\Temp\is-RP57N.tmp\94bd392b429e8da55d8707dea8e7dafde3476598c9631d4125b9f65ba9422bee.tmp

              Filesize

              683KB

              MD5

              f507ce43ea08d1721816ad4b0e090f50

              SHA1

              e4f02bcd410bddabea4c741838d9a88386547629

              SHA256

              d2218bde27d66f28e3caf15e899653a9357ebdc7adf9a763b687f6c03c93e5e1

              SHA512

              37b2f92df632f75447572df840a236ef01021e8291536bf2e8156179333f770afdd8bcbf50cb05bbdbdaa53c00ace46119290800b115823ea035a2389a3f6693

            • C:\Users\Admin\AppData\Local\Temp\is-TIE89.tmp\_isetup\_iscrypt.dll

              Filesize

              2KB

              MD5

              a69559718ab506675e907fe49deb71e9

              SHA1

              bc8f404ffdb1960b50c12ff9413c893b56f2e36f

              SHA256

              2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

              SHA512

              e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

            • C:\Users\Admin\AppData\Local\Temp\is-TIE89.tmp\_isetup\_isdecmp.dll

              Filesize

              32KB

              MD5

              b6f11a0ab7715f570f45900a1fe84732

              SHA1

              77b1201e535445af5ea94c1b03c0a1c34d67a77b

              SHA256

              e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67

              SHA512

              78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

            • C:\Users\Admin\AppData\Local\Temp\is-TIE89.tmp\_isetup\_isdecmp.dll

              Filesize

              32KB

              MD5

              b6f11a0ab7715f570f45900a1fe84732

              SHA1

              77b1201e535445af5ea94c1b03c0a1c34d67a77b

              SHA256

              e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67

              SHA512

              78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

            • memory/212-2-0x0000000000400000-0x000000000041A000-memory.dmp

              Filesize

              104KB

            • memory/212-0-0x0000000000400000-0x000000000041A000-memory.dmp

              Filesize

              104KB

            • memory/212-70-0x0000000000400000-0x000000000041A000-memory.dmp

              Filesize

              104KB

            • memory/3496-106-0x0000000000400000-0x00000000007D4000-memory.dmp

              Filesize

              3.8MB

            • memory/3496-103-0x0000000000400000-0x00000000007D4000-memory.dmp

              Filesize

              3.8MB

            • memory/3496-119-0x0000000000400000-0x00000000007D4000-memory.dmp

              Filesize

              3.8MB

            • memory/3496-112-0x0000000000400000-0x00000000007D4000-memory.dmp

              Filesize

              3.8MB

            • memory/3496-67-0x0000000000400000-0x00000000007D4000-memory.dmp

              Filesize

              3.8MB

            • memory/3496-69-0x0000000000400000-0x00000000007D4000-memory.dmp

              Filesize

              3.8MB

            • memory/3496-116-0x0000000000400000-0x00000000007D4000-memory.dmp

              Filesize

              3.8MB

            • memory/3496-100-0x0000000000A50000-0x0000000000AFD000-memory.dmp

              Filesize

              692KB

            • memory/3496-72-0x0000000000400000-0x00000000007D4000-memory.dmp

              Filesize

              3.8MB

            • memory/3496-109-0x0000000000400000-0x00000000007D4000-memory.dmp

              Filesize

              3.8MB

            • memory/3496-76-0x0000000000400000-0x00000000007D4000-memory.dmp

              Filesize

              3.8MB

            • memory/3496-77-0x0000000000400000-0x00000000007D4000-memory.dmp

              Filesize

              3.8MB

            • memory/3496-80-0x0000000000400000-0x00000000007D4000-memory.dmp

              Filesize

              3.8MB

            • memory/3496-83-0x0000000000400000-0x00000000007D4000-memory.dmp

              Filesize

              3.8MB

            • memory/3496-86-0x0000000000400000-0x00000000007D4000-memory.dmp

              Filesize

              3.8MB

            • memory/3496-89-0x0000000000400000-0x00000000007D4000-memory.dmp

              Filesize

              3.8MB

            • memory/3496-91-0x0000000000A50000-0x0000000000AFD000-memory.dmp

              Filesize

              692KB

            • memory/3496-90-0x0000000000A50000-0x0000000000AFD000-memory.dmp

              Filesize

              692KB

            • memory/3496-96-0x0000000000400000-0x00000000007D4000-memory.dmp

              Filesize

              3.8MB

            • memory/3496-99-0x0000000000400000-0x00000000007D4000-memory.dmp

              Filesize

              3.8MB

            • memory/3564-60-0x0000000000400000-0x00000000007D4000-memory.dmp

              Filesize

              3.8MB

            • memory/3564-64-0x0000000000400000-0x00000000007D4000-memory.dmp

              Filesize

              3.8MB

            • memory/3564-65-0x0000000000400000-0x00000000007D4000-memory.dmp

              Filesize

              3.8MB

            • memory/3564-61-0x0000000000400000-0x00000000007D4000-memory.dmp

              Filesize

              3.8MB

            • memory/4856-74-0x0000000002340000-0x0000000002341000-memory.dmp

              Filesize

              4KB

            • memory/4856-71-0x0000000000400000-0x00000000004BA000-memory.dmp

              Filesize

              744KB

            • memory/4856-7-0x0000000002340000-0x0000000002341000-memory.dmp

              Filesize

              4KB