Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-10-2024 11:52

General

  • Target

    doc20210812876462_PDF.jar

  • Size

    94KB

  • MD5

    9f431f7105d073752fd396105dc898ef

  • SHA1

    62058bd9d3683d7a6983d36722fede080b87c3d3

  • SHA256

    32cbcd636b3295b79872dc883f84bd3c5f378f9e2bd64a73148e8a3d5d6d58f9

  • SHA512

    26df1f20d773c009df88e440a484dd5feafc8f3ef46ddf90fcd465eb1c4b44bff112a44c2f79b9168aa64564bfd7a48ec14d110384e3d5d3944b9ada1460aee0

  • SSDEEP

    1536:Ex4jk2LwtGGBCRLwZ0MQ6i98iZGmAT5hSXx93uf3gdTsypX7GufP16wzInBvOwv:VjLwtGLi0MQ6iS8ATo9efwfplP11zC

Malware Config

Extracted

Family

strrat

C2

79.134.225.26:7888

Attributes
  • license_id

    3CJV-H140-XWVJ-P21B-U6QX

  • plugins_url

    http://jbfrost.live/strigoi/server/?hwid=1&lid=m&ht=5

  • scheduled_task

    true

  • secondary_startup

    true

  • startup

    true

Signatures

  • STRRAT

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

  • Drops startup file 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious use of WriteProcessMemory 10 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\doc20210812876462_PDF.jar
    1⤵
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:4524
    • C:\Program Files\Java\jre-1.8\bin\java.exe
      "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Program Files\Java\jre-1.8\doc20210812876462_PDF.jar"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3292
      • C:\Program Files\Java\jre-1.8\bin\java.exe
        "C:\Program Files\Java\jre-1.8\bin\java.exe" -jar "C:\Users\Admin\doc20210812876462_PDF.jar"
        3⤵
        • Drops startup file
        • Loads dropped DLL
        • Adds Run key to start application
        • Suspicious use of WriteProcessMemory
        PID:216
        • C:\Windows\SYSTEM32\cmd.exe
          cmd /c schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\doc20210812876462_PDF.jar"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:4436
          • C:\Windows\system32\schtasks.exe
            schtasks /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\doc20210812876462_PDF.jar"
            5⤵
            • Scheduled Task/Job: Scheduled Task
            PID:1736
        • 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\doc20210812876462_PDF.jar"
          4⤵
          • Loads dropped DLL
          PID:2960

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files\Java\jre-1.8\doc20210812876462_PDF.jar

    Filesize

    94KB

    MD5

    9f431f7105d073752fd396105dc898ef

    SHA1

    62058bd9d3683d7a6983d36722fede080b87c3d3

    SHA256

    32cbcd636b3295b79872dc883f84bd3c5f378f9e2bd64a73148e8a3d5d6d58f9

    SHA512

    26df1f20d773c009df88e440a484dd5feafc8f3ef46ddf90fcd465eb1c4b44bff112a44c2f79b9168aa64564bfd7a48ec14d110384e3d5d3944b9ada1460aee0

  • 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\jna8427736566884598827.dll

    Filesize

    241KB

    MD5

    e02979ecd43bcc9061eb2b494ab5af50

    SHA1

    3122ac0e751660f646c73b10c4f79685aa65c545

    SHA256

    a66959bec2ef5af730198db9f3b3f7cab0d4ae70ce01bec02bf1d738e6d1ee7a

    SHA512

    1e6f7dcb6a557c9b896412a48dd017c16f7a52fa2b9ab513593c9ecd118e86083979821ca7a3e2f098ee349200c823c759cec6599740dd391cb5f354dc29b372

  • C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-3442511616-637977696-3186306149-1000\83aa4cc77f591dfc2374580bbd95f6ba_5ab270f5-f3a9-47d1-97d7-bbd50acf9955

    Filesize

    45B

    MD5

    c8366ae350e7019aefc9d1e6e6a498c6

    SHA1

    5731d8a3e6568a5f2dfbbc87e3db9637df280b61

    SHA256

    11e6aca8e682c046c83b721eeb5c72c5ef03cb5936c60df6f4993511ddc61238

    SHA512

    33c980d5a638bfc791de291ebf4b6d263b384247ab27f261a54025108f2f85374b579a026e545f81395736dd40fa4696f2163ca17640dd47f1c42bc9971b18cd

  • 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/216-286-0x0000011AE4E70000-0x0000011AE4E71000-memory.dmp

    Filesize

    4KB

  • memory/216-270-0x0000011AE4E70000-0x0000011AE4E71000-memory.dmp

    Filesize

    4KB

  • memory/2960-319-0x000002423B000000-0x000002423B001000-memory.dmp

    Filesize

    4KB

  • memory/3292-229-0x000001E5F08F0000-0x000001E5F08F1000-memory.dmp

    Filesize

    4KB

  • memory/3292-225-0x000001E5F08F0000-0x000001E5F08F1000-memory.dmp

    Filesize

    4KB

  • memory/4524-107-0x000001C2BA930000-0x000001C2BA940000-memory.dmp

    Filesize

    64KB

  • memory/4524-2-0x000001C2BA4F0000-0x000001C2BA760000-memory.dmp

    Filesize

    2.4MB

  • memory/4524-34-0x000001C2B8B50000-0x000001C2B8B51000-memory.dmp

    Filesize

    4KB

  • memory/4524-38-0x000001C2BA4F0000-0x000001C2BA760000-memory.dmp

    Filesize

    2.4MB

  • memory/4524-42-0x000001C2BA760000-0x000001C2BA770000-memory.dmp

    Filesize

    64KB

  • memory/4524-41-0x000001C2BA800000-0x000001C2BA810000-memory.dmp

    Filesize

    64KB

  • memory/4524-39-0x000001C2BA7F0000-0x000001C2BA800000-memory.dmp

    Filesize

    64KB

  • memory/4524-40-0x000001C2BA810000-0x000001C2BA820000-memory.dmp

    Filesize

    64KB

  • memory/4524-43-0x000001C2BA770000-0x000001C2BA780000-memory.dmp

    Filesize

    64KB

  • memory/4524-44-0x000001C2BA820000-0x000001C2BA830000-memory.dmp

    Filesize

    64KB

  • memory/4524-47-0x000001C2BA830000-0x000001C2BA840000-memory.dmp

    Filesize

    64KB

  • memory/4524-53-0x000001C2BA850000-0x000001C2BA860000-memory.dmp

    Filesize

    64KB

  • memory/4524-58-0x000001C2BA860000-0x000001C2BA870000-memory.dmp

    Filesize

    64KB

  • memory/4524-57-0x000001C2BA7C0000-0x000001C2BA7D0000-memory.dmp

    Filesize

    64KB

  • memory/4524-56-0x000001C2BA7B0000-0x000001C2BA7C0000-memory.dmp

    Filesize

    64KB

  • memory/4524-52-0x000001C2BA840000-0x000001C2BA850000-memory.dmp

    Filesize

    64KB

  • memory/4524-117-0x000001C2BA960000-0x000001C2BA970000-memory.dmp

    Filesize

    64KB

  • memory/4524-50-0x000001C2BA790000-0x000001C2BA7A0000-memory.dmp

    Filesize

    64KB

  • memory/4524-46-0x000001C2BA780000-0x000001C2BA790000-memory.dmp

    Filesize

    64KB

  • memory/4524-60-0x000001C2BA870000-0x000001C2BA880000-memory.dmp

    Filesize

    64KB

  • memory/4524-62-0x000001C2B8B50000-0x000001C2B8B51000-memory.dmp

    Filesize

    4KB

  • memory/4524-63-0x000001C2BA7D0000-0x000001C2BA7E0000-memory.dmp

    Filesize

    64KB

  • memory/4524-66-0x000001C2BA880000-0x000001C2BA890000-memory.dmp

    Filesize

    64KB

  • memory/4524-65-0x000001C2BA7E0000-0x000001C2BA7F0000-memory.dmp

    Filesize

    64KB

  • memory/4524-70-0x000001C2BA7F0000-0x000001C2BA800000-memory.dmp

    Filesize

    64KB

  • memory/4524-72-0x000001C2BA890000-0x000001C2BA8A0000-memory.dmp

    Filesize

    64KB

  • memory/4524-120-0x000001C2BA8C0000-0x000001C2BA8D0000-memory.dmp

    Filesize

    64KB

  • memory/4524-76-0x000001C2BA800000-0x000001C2BA810000-memory.dmp

    Filesize

    64KB

  • memory/4524-77-0x000001C2BA8A0000-0x000001C2BA8B0000-memory.dmp

    Filesize

    64KB

  • memory/4524-79-0x000001C2BA8B0000-0x000001C2BA8C0000-memory.dmp

    Filesize

    64KB

  • memory/4524-78-0x000001C2BA820000-0x000001C2BA830000-memory.dmp

    Filesize

    64KB

  • memory/4524-82-0x000001C2BA8C0000-0x000001C2BA8D0000-memory.dmp

    Filesize

    64KB

  • memory/4524-81-0x000001C2BA830000-0x000001C2BA840000-memory.dmp

    Filesize

    64KB

  • memory/4524-89-0x000001C2BA8D0000-0x000001C2BA8E0000-memory.dmp

    Filesize

    64KB

  • memory/4524-88-0x000001C2BA850000-0x000001C2BA860000-memory.dmp

    Filesize

    64KB

  • memory/4524-87-0x000001C2BA840000-0x000001C2BA850000-memory.dmp

    Filesize

    64KB

  • memory/4524-91-0x000001C2BA8F0000-0x000001C2BA900000-memory.dmp

    Filesize

    64KB

  • memory/4524-90-0x000001C2BA8E0000-0x000001C2BA8F0000-memory.dmp

    Filesize

    64KB

  • memory/4524-92-0x000001C2BA860000-0x000001C2BA870000-memory.dmp

    Filesize

    64KB

  • memory/4524-93-0x000001C2BA900000-0x000001C2BA910000-memory.dmp

    Filesize

    64KB

  • memory/4524-98-0x000001C2B8B50000-0x000001C2B8B51000-memory.dmp

    Filesize

    4KB

  • memory/4524-100-0x000001C2BA870000-0x000001C2BA880000-memory.dmp

    Filesize

    64KB

  • memory/4524-101-0x000001C2BA910000-0x000001C2BA920000-memory.dmp

    Filesize

    64KB

  • memory/4524-103-0x000001C2BA920000-0x000001C2BA930000-memory.dmp

    Filesize

    64KB

  • memory/4524-106-0x000001C2BA880000-0x000001C2BA890000-memory.dmp

    Filesize

    64KB

  • memory/4524-27-0x000001C2BA7D0000-0x000001C2BA7E0000-memory.dmp

    Filesize

    64KB

  • memory/4524-109-0x000001C2BA890000-0x000001C2BA8A0000-memory.dmp

    Filesize

    64KB

  • memory/4524-110-0x000001C2BA940000-0x000001C2BA950000-memory.dmp

    Filesize

    64KB

  • memory/4524-111-0x000001C2B8B50000-0x000001C2B8B51000-memory.dmp

    Filesize

    4KB

  • memory/4524-113-0x000001C2BA8A0000-0x000001C2BA8B0000-memory.dmp

    Filesize

    64KB

  • memory/4524-114-0x000001C2BA950000-0x000001C2BA960000-memory.dmp

    Filesize

    64KB

  • memory/4524-116-0x000001C2BA8B0000-0x000001C2BA8C0000-memory.dmp

    Filesize

    64KB

  • memory/4524-51-0x000001C2BA7A0000-0x000001C2BA7B0000-memory.dmp

    Filesize

    64KB

  • memory/4524-32-0x000001C2BA7E0000-0x000001C2BA7F0000-memory.dmp

    Filesize

    64KB

  • memory/4524-71-0x000001C2BA810000-0x000001C2BA820000-memory.dmp

    Filesize

    64KB

  • memory/4524-121-0x000001C2BA8D0000-0x000001C2BA8E0000-memory.dmp

    Filesize

    64KB

  • memory/4524-122-0x000001C2BA8E0000-0x000001C2BA8F0000-memory.dmp

    Filesize

    64KB

  • memory/4524-123-0x000001C2BA8F0000-0x000001C2BA900000-memory.dmp

    Filesize

    64KB

  • memory/4524-124-0x000001C2BA970000-0x000001C2BA980000-memory.dmp

    Filesize

    64KB

  • memory/4524-126-0x000001C2BA980000-0x000001C2BA990000-memory.dmp

    Filesize

    64KB

  • memory/4524-127-0x000001C2B8B50000-0x000001C2B8B51000-memory.dmp

    Filesize

    4KB

  • memory/4524-128-0x000001C2BA900000-0x000001C2BA910000-memory.dmp

    Filesize

    64KB

  • memory/4524-133-0x000001C2BA990000-0x000001C2BA9A0000-memory.dmp

    Filesize

    64KB

  • memory/4524-132-0x000001C2BA910000-0x000001C2BA920000-memory.dmp

    Filesize

    64KB

  • memory/4524-135-0x000001C2B8B50000-0x000001C2B8B51000-memory.dmp

    Filesize

    4KB

  • memory/4524-136-0x000001C2BA920000-0x000001C2BA930000-memory.dmp

    Filesize

    64KB

  • memory/4524-138-0x000001C2BA930000-0x000001C2BA940000-memory.dmp

    Filesize

    64KB

  • memory/4524-139-0x000001C2B8B50000-0x000001C2B8B51000-memory.dmp

    Filesize

    4KB

  • memory/4524-141-0x000001C2B8B50000-0x000001C2B8B51000-memory.dmp

    Filesize

    4KB

  • memory/4524-144-0x000001C2BA940000-0x000001C2BA950000-memory.dmp

    Filesize

    64KB

  • memory/4524-145-0x000001C2BA9A0000-0x000001C2BA9B0000-memory.dmp

    Filesize

    64KB

  • memory/4524-148-0x000001C2B8B50000-0x000001C2B8B51000-memory.dmp

    Filesize

    4KB

  • memory/4524-149-0x000001C2BA950000-0x000001C2BA960000-memory.dmp

    Filesize

    64KB

  • memory/4524-152-0x000001C2BA960000-0x000001C2BA970000-memory.dmp

    Filesize

    64KB

  • memory/4524-155-0x000001C2BA970000-0x000001C2BA980000-memory.dmp

    Filesize

    64KB

  • memory/4524-160-0x000001C2BA980000-0x000001C2BA990000-memory.dmp

    Filesize

    64KB

  • memory/4524-168-0x000001C2BA790000-0x000001C2BA7A0000-memory.dmp

    Filesize

    64KB

  • memory/4524-171-0x000001C2BA7C0000-0x000001C2BA7D0000-memory.dmp

    Filesize

    64KB

  • memory/4524-185-0x000001C2BA8C0000-0x000001C2BA8D0000-memory.dmp

    Filesize

    64KB

  • memory/4524-184-0x000001C2BA8B0000-0x000001C2BA8C0000-memory.dmp

    Filesize

    64KB

  • memory/4524-183-0x000001C2BA880000-0x000001C2BA890000-memory.dmp

    Filesize

    64KB

  • memory/4524-182-0x000001C2BA870000-0x000001C2BA880000-memory.dmp

    Filesize

    64KB

  • memory/4524-181-0x000001C2BA860000-0x000001C2BA870000-memory.dmp

    Filesize

    64KB

  • memory/4524-180-0x000001C2BA850000-0x000001C2BA860000-memory.dmp

    Filesize

    64KB

  • memory/4524-179-0x000001C2BA840000-0x000001C2BA850000-memory.dmp

    Filesize

    64KB

  • memory/4524-178-0x000001C2BA830000-0x000001C2BA840000-memory.dmp

    Filesize

    64KB

  • memory/4524-177-0x000001C2BA820000-0x000001C2BA830000-memory.dmp

    Filesize

    64KB

  • memory/4524-176-0x000001C2BA4F0000-0x000001C2BA760000-memory.dmp

    Filesize

    2.4MB

  • memory/4524-175-0x000001C2BA810000-0x000001C2BA820000-memory.dmp

    Filesize

    64KB

  • memory/4524-174-0x000001C2BA7F0000-0x000001C2BA800000-memory.dmp

    Filesize

    64KB

  • memory/4524-173-0x000001C2BA7E0000-0x000001C2BA7F0000-memory.dmp

    Filesize

    64KB

  • memory/4524-172-0x000001C2BA7D0000-0x000001C2BA7E0000-memory.dmp

    Filesize

    64KB

  • memory/4524-170-0x000001C2BA7B0000-0x000001C2BA7C0000-memory.dmp

    Filesize

    64KB

  • memory/4524-24-0x000001C2BA7B0000-0x000001C2BA7C0000-memory.dmp

    Filesize

    64KB

  • memory/4524-25-0x000001C2BA7C0000-0x000001C2BA7D0000-memory.dmp

    Filesize

    64KB

  • memory/4524-19-0x000001C2BA790000-0x000001C2BA7A0000-memory.dmp

    Filesize

    64KB

  • memory/4524-20-0x000001C2BA7A0000-0x000001C2BA7B0000-memory.dmp

    Filesize

    64KB

  • memory/4524-16-0x000001C2BA780000-0x000001C2BA790000-memory.dmp

    Filesize

    64KB

  • memory/4524-14-0x000001C2BA770000-0x000001C2BA780000-memory.dmp

    Filesize

    64KB

  • memory/4524-12-0x000001C2BA760000-0x000001C2BA770000-memory.dmp

    Filesize

    64KB

  • memory/4524-118-0x000001C2B8B50000-0x000001C2B8B51000-memory.dmp

    Filesize

    4KB

  • memory/4524-169-0x000001C2BA7A0000-0x000001C2BA7B0000-memory.dmp

    Filesize

    64KB

  • memory/4524-167-0x000001C2BA780000-0x000001C2BA790000-memory.dmp

    Filesize

    64KB

  • memory/4524-166-0x000001C2BA770000-0x000001C2BA780000-memory.dmp

    Filesize

    64KB

  • memory/4524-165-0x000001C2BA760000-0x000001C2BA770000-memory.dmp

    Filesize

    64KB

  • memory/4524-164-0x000001C2BA800000-0x000001C2BA810000-memory.dmp

    Filesize

    64KB