Analysis

  • max time kernel
    146s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-06-2024 15:19

General

  • Target

    DOC000446.jar

  • Size

    448KB

  • MD5

    5f44aa92cda88f8b88f783f5ce2df636

  • SHA1

    f791bc786571bfb36e94ed6a293fa22304a5df78

  • SHA256

    85af8304fde85bfbd5323012e0f79fab0045a85943454c7757dece03686b049f

  • SHA512

    446a86271230343e77530136293ff29467d4166f0b812fc6cc99f53a516e492b21f0fe48fdb033f78db8e7a1620c32c00264d995f948f023ea608cdc2ccb5559

  • SSDEEP

    12288:c75igiDyZEO28Cabb5Je8wUYFkGnwce4U:8EyWO28CaRJVwdFk2Yh

Malware Config

Signatures

  • STRRAT

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

  • Drops startup file 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • 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 AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 26 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:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
    java -jar C:\Users\Admin\AppData\Local\Temp\DOC000446.jar
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3164
    • C:\Windows\system32\icacls.exe
      C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
      2⤵
      • Modifies file permissions
      PID:860
    • C:\Program Files\Java\jre-1.8\bin\java.exe
      "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\DOC000446.jar"
      2⤵
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:4896
      • C:\Windows\SYSTEM32\cmd.exe
        cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\DOC000446.jar"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1140
        • C:\Windows\system32\schtasks.exe
          schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\DOC000446.jar"
          4⤵
          • Creates scheduled task(s)
          PID:2556
      • C:\Program Files\Java\jre-1.8\bin\java.exe
        "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\AppData\Roaming\DOC000446.jar"
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:2620
        • C:\Windows\SYSTEM32\cmd.exe
          cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2316
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_logicaldisk get volumeserialnumber /format:list
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:4976
        • C:\Windows\SYSTEM32\cmd.exe
          cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1180
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get caption,OSArchitecture /format:list
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1228
        • C:\Windows\SYSTEM32\cmd.exe
          cmd.exe /c "wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:4124
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic /node:. /namespace:'\\root\cimv2' path win32_operatingsystem get version /format:list
            5⤵
              PID:4716
          • C:\Windows\SYSTEM32\cmd.exe
            cmd.exe /c "wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:3264
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic /node:localhost /namespace:'\\root\securitycenter2' path antivirusproduct get displayname /format:list
              5⤵
                PID:2784

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp

        Filesize

        46B

        MD5

        f5d3e925e551b5adb5201dad25908c4c

        SHA1

        72bc3112717ffd2fb91cff0e71e50f1adb1bf026

        SHA256

        161dd125623324e3f1902fad14a96677368c8c7783d7f91f8bf02bb3f04ccee3

        SHA512

        52adab77f002ebf3e50aa42309692906f91359d8bc850cb21a8a8db163367cb68b8ed9ce5b70a3493c45a6431703f54171ba30a6206c8e1f28c1d8ac22a6fa6b

      • C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp

        MD5

        d41d8cd98f00b204e9800998ecf8427e

        SHA1

        da39a3ee5e6b4b0d3255bfef95601890afd80709

        SHA256

        e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

        SHA512

        cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

      • C:\Users\Admin\AppData\Local\Temp\jna-63116079\jna5429509455119012841.dll

        Filesize

        241KB

        MD5

        e02979ecd43bcc9061eb2b494ab5af50

        SHA1

        3122ac0e751660f646c73b10c4f79685aa65c545

        SHA256

        a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

        SHA512

        1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

      • C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-3571316656-3665257725-2415531812-1000\83aa4cc77f591dfc2374580bbd95f6ba_a47c70d8-7adc-4ad7-994f-644a8c84c176

        Filesize

        45B

        MD5

        c8366ae350e7019aefc9d1e6e6a498c6

        SHA1

        5731d8a3e6568a5f2dfbbc87e3db9637df280b61

        SHA256

        11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238

        SHA512

        33c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd

      • C:\Users\Admin\DOC000446.jar

        Filesize

        448KB

        MD5

        5f44aa92cda88f8b88f783f5ce2df636

        SHA1

        f791bc786571bfb36e94ed6a293fa22304a5df78

        SHA256

        85af8304fde85bfbd5323012e0f79fab0045a85943454c7757dece03686b049f

        SHA512

        446a86271230343e77530136293ff29467d4166f0b812fc6cc99f53a516e492b21f0fe48fdb033f78db8e7a1620c32c00264d995f948f023ea608cdc2ccb5559

      • 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/2620-384-0x0000020C5F710000-0x0000020C5F711000-memory.dmp

        Filesize

        4KB

      • memory/2620-364-0x0000020C5F710000-0x0000020C5F711000-memory.dmp

        Filesize

        4KB

      • memory/3164-111-0x000001E66E8B0000-0x000001E66E8C0000-memory.dmp

        Filesize

        64KB

      • memory/3164-184-0x000001E66E920000-0x000001E66E930000-memory.dmp

        Filesize

        64KB

      • memory/3164-26-0x000001E66E700000-0x000001E66E710000-memory.dmp

        Filesize

        64KB

      • memory/3164-29-0x000001E66E710000-0x000001E66E720000-memory.dmp

        Filesize

        64KB

      • memory/3164-30-0x000001E66E720000-0x000001E66E730000-memory.dmp

        Filesize

        64KB

      • memory/3164-33-0x000001E66E730000-0x000001E66E740000-memory.dmp

        Filesize

        64KB

      • memory/3164-34-0x000001E66E740000-0x000001E66E750000-memory.dmp

        Filesize

        64KB

      • memory/3164-36-0x000001E66E750000-0x000001E66E760000-memory.dmp

        Filesize

        64KB

      • memory/3164-41-0x000001E66E760000-0x000001E66E770000-memory.dmp

        Filesize

        64KB

      • memory/3164-44-0x000001E66E6A0000-0x000001E66E6B0000-memory.dmp

        Filesize

        64KB

      • memory/3164-43-0x000001E66E770000-0x000001E66E780000-memory.dmp

        Filesize

        64KB

      • memory/3164-42-0x000001E66E780000-0x000001E66E790000-memory.dmp

        Filesize

        64KB

      • memory/3164-40-0x000001E66E430000-0x000001E66E6A0000-memory.dmp

        Filesize

        2.4MB

      • memory/3164-48-0x000001E66E790000-0x000001E66E7A0000-memory.dmp

        Filesize

        64KB

      • memory/3164-47-0x000001E66E6B0000-0x000001E66E6C0000-memory.dmp

        Filesize

        64KB

      • memory/3164-52-0x000001E66E7A0000-0x000001E66E7B0000-memory.dmp

        Filesize

        64KB

      • memory/3164-51-0x000001E66E6E0000-0x000001E66E6F0000-memory.dmp

        Filesize

        64KB

      • memory/3164-50-0x000001E66E6D0000-0x000001E66E6E0000-memory.dmp

        Filesize

        64KB

      • memory/3164-49-0x000001E66E6C0000-0x000001E66E6D0000-memory.dmp

        Filesize

        64KB

      • memory/3164-55-0x000001E66E7B0000-0x000001E66E7C0000-memory.dmp

        Filesize

        64KB

      • memory/3164-54-0x000001E66E6F0000-0x000001E66E700000-memory.dmp

        Filesize

        64KB

      • memory/3164-61-0x000001E66E7C0000-0x000001E66E7D0000-memory.dmp

        Filesize

        64KB

      • memory/3164-60-0x000001E66E700000-0x000001E66E710000-memory.dmp

        Filesize

        64KB

      • memory/3164-67-0x000001E66E7D0000-0x000001E66E7E0000-memory.dmp

        Filesize

        64KB

      • memory/3164-66-0x000001E66E730000-0x000001E66E740000-memory.dmp

        Filesize

        64KB

      • memory/3164-65-0x000001E66E720000-0x000001E66E730000-memory.dmp

        Filesize

        64KB

      • memory/3164-64-0x000001E66E710000-0x000001E66E720000-memory.dmp

        Filesize

        64KB

      • memory/3164-69-0x000001E66E7E0000-0x000001E66E7F0000-memory.dmp

        Filesize

        64KB

      • memory/3164-73-0x000001E66E7F0000-0x000001E66E800000-memory.dmp

        Filesize

        64KB

      • memory/3164-74-0x000001E66E800000-0x000001E66E810000-memory.dmp

        Filesize

        64KB

      • memory/3164-72-0x000001E66E740000-0x000001E66E750000-memory.dmp

        Filesize

        64KB

      • memory/3164-78-0x000001E66E810000-0x000001E66E820000-memory.dmp

        Filesize

        64KB

      • memory/3164-81-0x000001E66CA40000-0x000001E66CA41000-memory.dmp

        Filesize

        4KB

      • memory/3164-88-0x000001E66E850000-0x000001E66E860000-memory.dmp

        Filesize

        64KB

      • memory/3164-87-0x000001E66E840000-0x000001E66E850000-memory.dmp

        Filesize

        64KB

      • memory/3164-86-0x000001E66E830000-0x000001E66E840000-memory.dmp

        Filesize

        64KB

      • memory/3164-83-0x000001E66E760000-0x000001E66E770000-memory.dmp

        Filesize

        64KB

      • memory/3164-77-0x000001E66E750000-0x000001E66E760000-memory.dmp

        Filesize

        64KB

      • memory/3164-85-0x000001E66E820000-0x000001E66E830000-memory.dmp

        Filesize

        64KB

      • memory/3164-84-0x000001E66E780000-0x000001E66E790000-memory.dmp

        Filesize

        64KB

      • memory/3164-93-0x000001E66E860000-0x000001E66E870000-memory.dmp

        Filesize

        64KB

      • memory/3164-92-0x000001E66E770000-0x000001E66E780000-memory.dmp

        Filesize

        64KB

      • memory/3164-96-0x000001E66E790000-0x000001E66E7A0000-memory.dmp

        Filesize

        64KB

      • memory/3164-97-0x000001E66E870000-0x000001E66E880000-memory.dmp

        Filesize

        64KB

      • memory/3164-101-0x000001E66E7A0000-0x000001E66E7B0000-memory.dmp

        Filesize

        64KB

      • memory/3164-102-0x000001E66E880000-0x000001E66E890000-memory.dmp

        Filesize

        64KB

      • memory/3164-107-0x000001E66E890000-0x000001E66E8A0000-memory.dmp

        Filesize

        64KB

      • memory/3164-105-0x000001E66E7B0000-0x000001E66E7C0000-memory.dmp

        Filesize

        64KB

      • memory/3164-113-0x000001E66E7D0000-0x000001E66E7E0000-memory.dmp

        Filesize

        64KB

      • memory/3164-114-0x000001E66E8C0000-0x000001E66E8D0000-memory.dmp

        Filesize

        64KB

      • memory/3164-109-0x000001E66E7C0000-0x000001E66E7D0000-memory.dmp

        Filesize

        64KB

      • memory/3164-108-0x000001E66E8A0000-0x000001E66E8B0000-memory.dmp

        Filesize

        64KB

      • memory/3164-21-0x000001E66E6D0000-0x000001E66E6E0000-memory.dmp

        Filesize

        64KB

      • memory/3164-2-0x000001E66E430000-0x000001E66E6A0000-memory.dmp

        Filesize

        2.4MB

      • memory/3164-20-0x000001E66E6C0000-0x000001E66E6D0000-memory.dmp

        Filesize

        64KB

      • memory/3164-122-0x000001E66E900000-0x000001E66E910000-memory.dmp

        Filesize

        64KB

      • memory/3164-121-0x000001E66E8F0000-0x000001E66E900000-memory.dmp

        Filesize

        64KB

      • memory/3164-120-0x000001E66E8E0000-0x000001E66E8F0000-memory.dmp

        Filesize

        64KB

      • memory/3164-119-0x000001E66E8D0000-0x000001E66E8E0000-memory.dmp

        Filesize

        64KB

      • memory/3164-118-0x000001E66E7E0000-0x000001E66E7F0000-memory.dmp

        Filesize

        64KB

      • memory/3164-128-0x000001E66CA40000-0x000001E66CA41000-memory.dmp

        Filesize

        4KB

      • memory/3164-130-0x000001E66CA40000-0x000001E66CA41000-memory.dmp

        Filesize

        4KB

      • memory/3164-132-0x000001E66E810000-0x000001E66E820000-memory.dmp

        Filesize

        64KB

      • memory/3164-133-0x000001E66E910000-0x000001E66E920000-memory.dmp

        Filesize

        64KB

      • memory/3164-135-0x000001E66E820000-0x000001E66E830000-memory.dmp

        Filesize

        64KB

      • memory/3164-136-0x000001E66E830000-0x000001E66E840000-memory.dmp

        Filesize

        64KB

      • memory/3164-137-0x000001E66E840000-0x000001E66E850000-memory.dmp

        Filesize

        64KB

      • memory/3164-139-0x000001E66E920000-0x000001E66E930000-memory.dmp

        Filesize

        64KB

      • memory/3164-138-0x000001E66E850000-0x000001E66E860000-memory.dmp

        Filesize

        64KB

      • memory/3164-141-0x000001E66E860000-0x000001E66E870000-memory.dmp

        Filesize

        64KB

      • memory/3164-142-0x000001E66E930000-0x000001E66E940000-memory.dmp

        Filesize

        64KB

      • memory/3164-145-0x000001E66E870000-0x000001E66E880000-memory.dmp

        Filesize

        64KB

      • memory/3164-146-0x000001E66E940000-0x000001E66E950000-memory.dmp

        Filesize

        64KB

      • memory/3164-150-0x000001E66E950000-0x000001E66E960000-memory.dmp

        Filesize

        64KB

      • memory/3164-149-0x000001E66E8A0000-0x000001E66E8B0000-memory.dmp

        Filesize

        64KB

      • memory/3164-148-0x000001E66E880000-0x000001E66E890000-memory.dmp

        Filesize

        64KB

      • memory/3164-153-0x000001E66E960000-0x000001E66E970000-memory.dmp

        Filesize

        64KB

      • memory/3164-152-0x000001E66E890000-0x000001E66E8A0000-memory.dmp

        Filesize

        64KB

      • memory/3164-156-0x000001E66E970000-0x000001E66E980000-memory.dmp

        Filesize

        64KB

      • memory/3164-155-0x000001E66E8B0000-0x000001E66E8C0000-memory.dmp

        Filesize

        64KB

      • memory/3164-158-0x000001E66CA40000-0x000001E66CA41000-memory.dmp

        Filesize

        4KB

      • memory/3164-164-0x000001E66E980000-0x000001E66E990000-memory.dmp

        Filesize

        64KB

      • memory/3164-168-0x000001E66E8F0000-0x000001E66E900000-memory.dmp

        Filesize

        64KB

      • memory/3164-167-0x000001E66E8E0000-0x000001E66E8F0000-memory.dmp

        Filesize

        64KB

      • memory/3164-166-0x000001E66E8D0000-0x000001E66E8E0000-memory.dmp

        Filesize

        64KB

      • memory/3164-165-0x000001E66E990000-0x000001E66E9A0000-memory.dmp

        Filesize

        64KB

      • memory/3164-163-0x000001E66E8C0000-0x000001E66E8D0000-memory.dmp

        Filesize

        64KB

      • memory/3164-172-0x000001E66E900000-0x000001E66E910000-memory.dmp

        Filesize

        64KB

      • memory/3164-173-0x000001E66E9A0000-0x000001E66E9B0000-memory.dmp

        Filesize

        64KB

      • memory/3164-176-0x000001E66CA40000-0x000001E66CA41000-memory.dmp

        Filesize

        4KB

      • memory/3164-180-0x000001E66CA40000-0x000001E66CA41000-memory.dmp

        Filesize

        4KB

      • memory/3164-181-0x000001E66E910000-0x000001E66E920000-memory.dmp

        Filesize

        64KB

      • memory/3164-185-0x000001E66E9B0000-0x000001E66E9C0000-memory.dmp

        Filesize

        64KB

      • memory/3164-123-0x000001E66E7F0000-0x000001E66E800000-memory.dmp

        Filesize

        64KB

      • memory/3164-24-0x000001E66E6F0000-0x000001E66E700000-memory.dmp

        Filesize

        64KB

      • memory/3164-186-0x000001E66CA40000-0x000001E66CA41000-memory.dmp

        Filesize

        4KB

      • memory/3164-187-0x000001E66E770000-0x000001E66E780000-memory.dmp

        Filesize

        64KB

      • memory/3164-189-0x000001E66E6B0000-0x000001E66E6C0000-memory.dmp

        Filesize

        64KB

      • memory/3164-188-0x000001E66E6A0000-0x000001E66E6B0000-memory.dmp

        Filesize

        64KB

      • memory/3164-124-0x000001E66E800000-0x000001E66E810000-memory.dmp

        Filesize

        64KB

      • memory/3164-22-0x000001E66E6E0000-0x000001E66E6F0000-memory.dmp

        Filesize

        64KB

      • memory/3164-16-0x000001E66E6B0000-0x000001E66E6C0000-memory.dmp

        Filesize

        64KB

      • memory/3164-14-0x000001E66E6A0000-0x000001E66E6B0000-memory.dmp

        Filesize

        64KB

      • memory/3164-12-0x000001E66CA40000-0x000001E66CA41000-memory.dmp

        Filesize

        4KB

      • memory/4896-271-0x000001B086DE0000-0x000001B086DE1000-memory.dmp

        Filesize

        4KB