Analysis

  • max time kernel
    93s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/07/2024, 03:31

General

  • Target

    $TEMP/coopen_setup_100030.exe

  • Size

    1.2MB

  • MD5

    86417458dc5b33ed2d64ec7ca79be209

  • SHA1

    4786aef18d2409c6e5aa255c4663d455196292ad

  • SHA256

    4b2b035586333f7c16e6035e67bed9f4120b43933e74e8a29f64d04775e86328

  • SHA512

    6b2153538d758b35ebb46cb0ff8485c3f8213c36d6a995329a439826225174333a068dfb08d6755e2fe19f2aa0bd752f962a2bcb80fd9a294f878586ee6e9da3

  • SSDEEP

    24576:kLBUwTKA2P9U/cDeCiFwM9hmYYvNKt6n5duze92xK/zftXhp/:kLqsPihZieBYYvNKt65j2W7tXhF

Score
7/10

Malware Config

Signatures

  • Drops startup file 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 15 IoCs
  • 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 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Control Panel 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\$TEMP\coopen_setup_100030.exe
    "C:\Users\Admin\AppData\Local\Temp\$TEMP\coopen_setup_100030.exe"
    1⤵
    • Drops startup file
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Modifies Control Panel
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:376
    • C:\Program Files (x86)\Coopen\Coopen.exe
      "C:\Program Files (x86)\Coopen\Coopen.exe"
      2⤵
      • Executes dropped EXE
      PID:4856

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Program Files (x86)\Coopen\Coopen.exe

          Filesize

          90KB

          MD5

          f9193966e62c1956bf3c9a716e958a0e

          SHA1

          87401d4a6cb2f023537398fdbf6fc721cacbd93b

          SHA256

          b6f9170d208cfb347ab0095b811a65a1a717ea1246ca25796923b45d2f986e41

          SHA512

          25d9a1b5c7702ebccbfdbcbdd81f6dc5d0aeb5bb6df4a8e8e05ba7cf5840e92b7e64d448d923775345e860ee5939bb34228de81e4b3044f750bab1b5b44ca3bd

        • C:\Program Files (x86)\Coopen\image\Photo\local Photo\ModeBList.ini

          Filesize

          221B

          MD5

          be5d6be6c04055fa7bdf6f4bd116ada0

          SHA1

          3c775702a7c5796bda82ef931c749ed1acc63764

          SHA256

          38f4b305820feae6925d9fb63545409ff258c265fb68cb2d9431659ce0d6a7a7

          SHA512

          09f241dbe45dff0ff10bdf383ebb9bf98b6f3ca5e1cd8fcbe902d4051dd8170ee5109dbba4c824de38187219fcd8a0b9e16fcea03f9baa0b60a9e4fd495639d2

        • C:\Program Files (x86)\Coopen\image\Wallpaper\coopen wallpaper\PicList.ini

          Filesize

          183B

          MD5

          b2e4fcaf8fb1aca922b3256ad67cae70

          SHA1

          d5ac71355f67bc5775accb38b569258d1be3dac5

          SHA256

          02650ca3221b02dd208301ae918d8408a015d3783e5096a924884d698f598594

          SHA512

          d93b7b0ad7972dada79b456d8431808cc73d49808730a512a3139011a01f69393298b9c86da68b2c2338bdbc6460e57e12db2ab2c87c0be1b216df34f202f1f3

        • C:\Program Files (x86)\Coopen\image\Wallpaper\local wallpaper\ModeAList.ini

          Filesize

          182B

          MD5

          4973db85d31a71051d885aabffdd5f91

          SHA1

          08aa158b39486f1ed97047cf1755da40a97dd0f1

          SHA256

          58a7286d3e4d4f7ab7a710fe399a7e4bf098dbc6d5b0d23b5f8020511cbabfdf

          SHA512

          e560d87f1561b09b6379da945f1435d2d6eb84b03078da90cbd63bfaeed8947d6d052329159b88bfe765910ba34ba6a74344543ec33e0fc4ee96fa44da90884f

        • C:\Users\Admin\AppData\Local\Temp\nsw8966.tmp\KillProcDLL.dll

          Filesize

          4KB

          MD5

          99f345cf51b6c3c317d20a81acb11012

          SHA1

          b3d0355f527c536ea14a8ff51741c8739d66f727

          SHA256

          c2689ba1f66066afce85ca6457ecd36370be0fe351c58422e45efd0948655c93

          SHA512

          937aa75be84a74f2be3b54dc80fac02c17dad1915d924ef82ab354d2a49bc773ee6d801203c52686113783a7c7ea0e8ed8e673ba696d6d3212f7006e291ed2ef

        • C:\Users\Admin\AppData\Local\Temp\nsw8966.tmp\System.dll

          Filesize

          11KB

          MD5

          c17103ae9072a06da581dec998343fc1

          SHA1

          b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

          SHA256

          dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

          SHA512

          d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

        • memory/376-45-0x00000000022B1000-0x00000000022B2000-memory.dmp

          Filesize

          4KB

        • memory/376-42-0x00000000022B1000-0x00000000022B2000-memory.dmp

          Filesize

          4KB

        • memory/376-58-0x00000000022B0000-0x00000000022B3000-memory.dmp

          Filesize

          12KB

        • memory/376-57-0x00000000022B0000-0x00000000022B3000-memory.dmp

          Filesize

          12KB

        • memory/376-59-0x00000000022B1000-0x00000000022B2000-memory.dmp

          Filesize

          4KB

        • memory/376-44-0x00000000022B0000-0x00000000022B3000-memory.dmp

          Filesize

          12KB

        • memory/376-43-0x00000000022B0000-0x00000000022B3000-memory.dmp

          Filesize

          12KB

        • memory/376-47-0x00000000022B1000-0x00000000022B2000-memory.dmp

          Filesize

          4KB

        • memory/376-41-0x00000000022B0000-0x00000000022B3000-memory.dmp

          Filesize

          12KB

        • memory/376-40-0x00000000022B0000-0x00000000022B3000-memory.dmp

          Filesize

          12KB

        • memory/376-46-0x00000000022B0000-0x00000000022B3000-memory.dmp

          Filesize

          12KB

        • memory/376-39-0x00000000022B0000-0x00000000022B3000-memory.dmp

          Filesize

          12KB

        • memory/376-15-0x00000000022B1000-0x00000000022B2000-memory.dmp

          Filesize

          4KB

        • memory/376-14-0x00000000022B0000-0x00000000022B3000-memory.dmp

          Filesize

          12KB