Analysis

  • max time kernel
    143s
  • max time network
    37s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    21-03-2023 01:01

General

  • Target

    645d88e82d8b0e75ccf0f38443029249598da6729c8eb4beaef021dce5860a7f.jar

  • Size

    220KB

  • MD5

    1ab2e5692258d40a9fa81cf465595e1a

  • SHA1

    8904eb1d116713835ee50f44d36849d4b70617fe

  • SHA256

    645d88e82d8b0e75ccf0f38443029249598da6729c8eb4beaef021dce5860a7f

  • SHA512

    5d905dc377e3156ddce19be8d3a3eb7e73398c876aaf0aaaeab98386aa4816392986eb8857abbfca5a5aac5685cf501e4d479185ef56365010469f88caa904a2

  • SSDEEP

    6144:Pdr9tGNDLN9y6/plymNG9D064w4VE2TP0qdBrK0:PLtGdLT/zPw2fDVE2nBr

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 12 IoCs

Processes

  • C:\Windows\system32\java.exe
    java -jar C:\Users\Admin\AppData\Local\Temp\645d88e82d8b0e75ccf0f38443029249598da6729c8eb4beaef021dce5860a7f.jar
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1724
    • C:\Program Files\Java\jre7\bin\java.exe
      "C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\645d88e82d8b0e75ccf0f38443029249598da6729c8eb4beaef021dce5860a7f.jar"
      2⤵
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1004
      • C:\Program Files\Java\jre7\bin\java.exe
        "C:\Program Files\Java\jre7\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\645d88e82d8b0e75ccf0f38443029249598da6729c8eb4beaef021dce5860a7f.jar"
        3⤵
          PID:1776
        • C:\Windows\system32\cmd.exe
          cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\645d88e82d8b0e75ccf0f38443029249598da6729c8eb4beaef021dce5860a7f.jar"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1592
          • C:\Windows\system32\schtasks.exe
            schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\645d88e82d8b0e75ccf0f38443029249598da6729c8eb4beaef021dce5860a7f.jar"
            4⤵
            • Creates scheduled task(s)
            PID:1576

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\645d88e82d8b0e75ccf0f38443029249598da6729c8eb4beaef021dce5860a7f.jar

      Filesize

      220KB

      MD5

      1ab2e5692258d40a9fa81cf465595e1a

      SHA1

      8904eb1d116713835ee50f44d36849d4b70617fe

      SHA256

      645d88e82d8b0e75ccf0f38443029249598da6729c8eb4beaef021dce5860a7f

      SHA512

      5d905dc377e3156ddce19be8d3a3eb7e73398c876aaf0aaaeab98386aa4816392986eb8857abbfca5a5aac5685cf501e4d479185ef56365010469f88caa904a2

    • C:\Users\Admin\AppData\Roaming\645d88e82d8b0e75ccf0f38443029249598da6729c8eb4beaef021dce5860a7f.jar

      Filesize

      220KB

      MD5

      1ab2e5692258d40a9fa81cf465595e1a

      SHA1

      8904eb1d116713835ee50f44d36849d4b70617fe

      SHA256

      645d88e82d8b0e75ccf0f38443029249598da6729c8eb4beaef021dce5860a7f

      SHA512

      5d905dc377e3156ddce19be8d3a3eb7e73398c876aaf0aaaeab98386aa4816392986eb8857abbfca5a5aac5685cf501e4d479185ef56365010469f88caa904a2

    • C:\Users\Admin\AppData\Roaming\645d88e82d8b0e75ccf0f38443029249598da6729c8eb4beaef021dce5860a7f.jar

      Filesize

      220KB

      MD5

      1ab2e5692258d40a9fa81cf465595e1a

      SHA1

      8904eb1d116713835ee50f44d36849d4b70617fe

      SHA256

      645d88e82d8b0e75ccf0f38443029249598da6729c8eb4beaef021dce5860a7f

      SHA512

      5d905dc377e3156ddce19be8d3a3eb7e73398c876aaf0aaaeab98386aa4816392986eb8857abbfca5a5aac5685cf501e4d479185ef56365010469f88caa904a2

    • 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/1004-108-0x0000000000220000-0x0000000000221000-memory.dmp

      Filesize

      4KB

    • memory/1004-110-0x0000000000220000-0x0000000000221000-memory.dmp

      Filesize

      4KB

    • memory/1004-109-0x0000000000220000-0x0000000000221000-memory.dmp

      Filesize

      4KB

    • memory/1724-93-0x0000000000120000-0x0000000000121000-memory.dmp

      Filesize

      4KB

    • memory/1724-78-0x0000000000120000-0x0000000000121000-memory.dmp

      Filesize

      4KB

    • memory/1724-97-0x0000000000120000-0x0000000000121000-memory.dmp

      Filesize

      4KB

    • memory/1724-81-0x0000000000120000-0x0000000000121000-memory.dmp

      Filesize

      4KB

    • memory/1724-74-0x0000000000120000-0x0000000000121000-memory.dmp

      Filesize

      4KB

    • memory/1724-63-0x0000000000120000-0x0000000000121000-memory.dmp

      Filesize

      4KB

    • memory/1724-90-0x0000000000120000-0x0000000000121000-memory.dmp

      Filesize

      4KB

    • memory/1724-73-0x0000000000120000-0x0000000000121000-memory.dmp

      Filesize

      4KB

    • memory/1724-86-0x0000000000120000-0x0000000000121000-memory.dmp

      Filesize

      4KB

    • memory/1724-70-0x0000000000120000-0x0000000000121000-memory.dmp

      Filesize

      4KB