Analysis

  • max time kernel
    149s
  • max time network
    134s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230621-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-06-2023 01:49

General

  • Target

    Inventory List.jar

  • Size

    219KB

  • MD5

    4528ca1cd5111138dbd966f65aa18fd4

  • SHA1

    51288703a62480e7a80fc6e2f43d96f230324537

  • SHA256

    924c2bc4af402c80d0d9840cb97ced94cf09755df952c02f43d0f23b5f6ed657

  • SHA512

    7a45b93c648bdda6b42853face3e41f39ae057aa136af0d664bb31c8f8e09d4ab8534e15d833f8dfacad3b6bb538343dd942855ed3f9b7010691ffef4db9077c

  • SSDEEP

    6144:j0BJ66R8sBvhIm5ETEXBr/8D9b1WbhjPf7jtjCi:vUB5bGSSZyjfAi

Malware Config

Signatures

  • STRRAT

    STRRAT is a remote access tool than can steal credentials and log keystrokes.

  • Drops startup file 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of WriteProcessMemory 8 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\ProgramData\Oracle\Java\javapath\java.exe
    java -jar "C:\Users\Admin\AppData\Local\Temp\Inventory List.jar"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2660
    • C:\Program Files\Java\jre1.8.0_66\bin\java.exe
      "C:\Program Files\Java\jre1.8.0_66\bin\java.exe" -jar "C:\Users\Admin\Inventory List.jar"
      2⤵
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:912
      • C:\Windows\SYSTEM32\cmd.exe
        cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\Inventory List.jar"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3880
        • C:\Windows\system32\schtasks.exe
          schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\Inventory List.jar"
          4⤵
          • Creates scheduled task(s)
          PID:3516
      • C:\Program Files\Java\jre1.8.0_66\bin\java.exe
        "C:\Program Files\Java\jre1.8.0_66\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\Inventory List.jar"
        3⤵
          PID:4968

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\.oracle_jre_usage\90737d32e3aba4b.timestamp

      Filesize

      50B

      MD5

      40036d860061e8d2bfb840a957e12e14

      SHA1

      e42df3b81f8765c4efe63e88ec85b0cd7b6a8bf5

      SHA256

      c60d28e9968b968dc73700f9d81b0b278468d6eac98c7adefb5a9a42ccd85439

      SHA512

      8f5feebdb7373472c98d1fe2145779425ce2d2238c22c23212e76bf083d55c424a78d3ca5e80d8d732e0a493412a952875bda5fd81b6d77ffd78b97afeecfc96

    • C:\Users\Admin\AppData\Roaming\Inventory List.jar

      Filesize

      219KB

      MD5

      4528ca1cd5111138dbd966f65aa18fd4

      SHA1

      51288703a62480e7a80fc6e2f43d96f230324537

      SHA256

      924c2bc4af402c80d0d9840cb97ced94cf09755df952c02f43d0f23b5f6ed657

      SHA512

      7a45b93c648bdda6b42853face3e41f39ae057aa136af0d664bb31c8f8e09d4ab8534e15d833f8dfacad3b6bb538343dd942855ed3f9b7010691ffef4db9077c

    • C:\Users\Admin\AppData\Roaming\Inventory List.jar

      Filesize

      219KB

      MD5

      4528ca1cd5111138dbd966f65aa18fd4

      SHA1

      51288703a62480e7a80fc6e2f43d96f230324537

      SHA256

      924c2bc4af402c80d0d9840cb97ced94cf09755df952c02f43d0f23b5f6ed657

      SHA512

      7a45b93c648bdda6b42853face3e41f39ae057aa136af0d664bb31c8f8e09d4ab8534e15d833f8dfacad3b6bb538343dd942855ed3f9b7010691ffef4db9077c

    • C:\Users\Admin\Inventory List.jar

      Filesize

      219KB

      MD5

      4528ca1cd5111138dbd966f65aa18fd4

      SHA1

      51288703a62480e7a80fc6e2f43d96f230324537

      SHA256

      924c2bc4af402c80d0d9840cb97ced94cf09755df952c02f43d0f23b5f6ed657

      SHA512

      7a45b93c648bdda6b42853face3e41f39ae057aa136af0d664bb31c8f8e09d4ab8534e15d833f8dfacad3b6bb538343dd942855ed3f9b7010691ffef4db9077c

    • C:\Users\Admin\lib\jna-5.5.0.jar

      Filesize

      1.4MB

      MD5

      acfb5b5fd9ee10bf69497792fd469f85

      SHA1

      0e0845217c4907822403912ad6828d8e0b256208

      SHA256

      b308faebfe4ed409de8410e0a632d164b2126b035f6eacff968d3908cafb4d9e

      SHA512

      e52575f58a195ceb3bd16b9740eadf5bc5b1d4d63c0734e8e5fd1d1776aa2d068d2e4c7173b83803f95f72c0a6759ae1c9b65773c734250d4cfcdf47a19f82aa

    • C:\Users\Admin\lib\jna-platform-5.5.0.jar

      Filesize

      2.6MB

      MD5

      2f4a99c2758e72ee2b59a73586a2322f

      SHA1

      af38e7c4d0fc73c23ecd785443705bfdee5b90bf

      SHA256

      24d81621f82ac29fcdd9a74116031f5907a2343158e616f4573bbfa2434ae0d5

      SHA512

      b860459a0d3bf7ccb600a03aa1d2ac0358619ee89b2b96ed723541e182b6fdab53aefef7992acb4e03fca67aa47cbe3907b1e6060a60b57ed96c4e00c35c7494

    • C:\Users\Admin\lib\sqlite-jdbc-3.14.2.1.jar

      Filesize

      4.1MB

      MD5

      b33387e15ab150a7bf560abdc73c3bec

      SHA1

      66b8075784131f578ef893fd7674273f709b9a4c

      SHA256

      2eae3dea1c3dde6104c49f9601074b6038ff6abcf3be23f4b56f6720a4f6a491

      SHA512

      25cfb0d6ce35d0bcb18527d3aa12c63ecb2d9c1b8b78805d1306e516c13480b79bb0d74730aa93bd1752f9ac2da9fdd51781c48844cea2fd52a06c62852c8279

    • C:\Users\Admin\lib\system-hook-3.5.jar

      Filesize

      772KB

      MD5

      e1aa38a1e78a76a6de73efae136cdb3a

      SHA1

      c463da71871f780b2e2e5dba115d43953b537daf

      SHA256

      2ddda8af6faef8bde46acf43ec546603180bcf8dcb2e5591fff8ac9cd30b5609

      SHA512

      fee16fe9364926ec337e52f551fd62ed81984808a847de2fd68ff29b6c5da0dcc04ef6d8977f0fe675662a7d2ea1065cdcdd2a5259446226a7c7c5516bd7d60d

    • memory/912-258-0x0000000000C80000-0x0000000000C81000-memory.dmp

      Filesize

      4KB

    • memory/2660-195-0x0000000000BF0000-0x0000000000BF1000-memory.dmp

      Filesize

      4KB

    • memory/2660-241-0x0000000000BF0000-0x0000000000BF1000-memory.dmp

      Filesize

      4KB

    • memory/2660-210-0x0000000000BF0000-0x0000000000BF1000-memory.dmp

      Filesize

      4KB

    • memory/2660-211-0x0000000000BF0000-0x0000000000BF1000-memory.dmp

      Filesize

      4KB

    • memory/2660-212-0x0000000000BF0000-0x0000000000BF1000-memory.dmp

      Filesize

      4KB

    • memory/2660-213-0x0000000000BF0000-0x0000000000BF1000-memory.dmp

      Filesize

      4KB

    • memory/2660-221-0x0000000000BF0000-0x0000000000BF1000-memory.dmp

      Filesize

      4KB

    • memory/2660-223-0x0000000000BF0000-0x0000000000BF1000-memory.dmp

      Filesize

      4KB

    • memory/2660-226-0x0000000000BF0000-0x0000000000BF1000-memory.dmp

      Filesize

      4KB

    • memory/2660-229-0x0000000000BF0000-0x0000000000BF1000-memory.dmp

      Filesize

      4KB

    • memory/2660-233-0x0000000000BF0000-0x0000000000BF1000-memory.dmp

      Filesize

      4KB

    • memory/2660-202-0x0000000000BF0000-0x0000000000BF1000-memory.dmp

      Filesize

      4KB

    • memory/2660-199-0x0000000000BF0000-0x0000000000BF1000-memory.dmp

      Filesize

      4KB

    • memory/2660-197-0x0000000000BF0000-0x0000000000BF1000-memory.dmp

      Filesize

      4KB

    • memory/2660-143-0x0000000000BF0000-0x0000000000BF1000-memory.dmp

      Filesize

      4KB

    • memory/2660-194-0x0000000000BF0000-0x0000000000BF1000-memory.dmp

      Filesize

      4KB

    • memory/2660-186-0x0000000000BF0000-0x0000000000BF1000-memory.dmp

      Filesize

      4KB

    • memory/2660-185-0x0000000000BF0000-0x0000000000BF1000-memory.dmp

      Filesize

      4KB

    • memory/2660-179-0x0000000000BF0000-0x0000000000BF1000-memory.dmp

      Filesize

      4KB

    • memory/2660-168-0x0000000000BF0000-0x0000000000BF1000-memory.dmp

      Filesize

      4KB

    • memory/2660-157-0x0000000000BF0000-0x0000000000BF1000-memory.dmp

      Filesize

      4KB