Resubmissions

12/04/2024, 13:18

240412-qj2nwsdg6z10

12/04/2024, 13:18

240412-qj13csdg6y10

12/04/2024, 13:18

240412-qj1rladg6x10

12/04/2024, 13:18

240412-qjz53aag2610

12/04/2024, 13:18

240412-qjzvasag2510

09/04/2024, 03:59

240409-ekaq1sea3410

09/04/2024, 03:58

240409-ej1aaadh9810

09/04/2024, 03:58

240409-ejnw9adh8510

09/04/2024, 03:55

240409-eg8tmshd4110

17/02/2024, 23:58

240217-31gfhacd5210

Analysis

  • max time kernel
    299s
  • max time network
    306s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    09/04/2024, 03:55

General

  • Target
    stub_tor.exe
  • Size 7.8MB
  • Sample240409-eg8tmshd41
  • SHA256 caf48b67e7bb94a178426fc7ce6b9ed50ffb2f3813a7c68900f21bfffb24e44f
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • bitrat

Version
  • 1.38

C2
  • 7sbl4dpbubwjjghdquwg47fyq7rookd4bgm2ypm2kjzkivd7tomvczqd.onion:440

Attributes
  • communication_password

    4124bc0a9335c27f086f24ba207a4912

  • install_dir

    Minecraft

  • install_file

    Runtime_Broker

  • tor_process

    tor

Signatures

  • BitRAT

    BitRAT is a remote access tool written in C++ and uses leaked source code from other families.

  • ACProtect 1.3x - 1.4x DLL software 7 IoCs

    Detects file using ACProtect software.

  • Executes dropped EXE 11 IoCs
  • Loads dropped DLL 64 IoCs
  • UPX packed file 64 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 7 IoCs
  • Looks up external IP address via web service 5 IoCs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 8 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: RenamesItself 53 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\stub_tor.exe
    "C:\Users\Admin\AppData\Local\Temp\stub_tor.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: RenamesItself
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1596
    • C:\Users\Admin\AppData\Local\a5b260eb\tor\tor.exe
      "C:\Users\Admin\AppData\Local\a5b260eb\tor\tor.exe" -f torrc
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:3732
    • C:\Users\Admin\AppData\Local\a5b260eb\tor\tor.exe
      "C:\Users\Admin\AppData\Local\a5b260eb\tor\tor.exe" -f torrc
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:4476
    • C:\Users\Admin\AppData\Local\a5b260eb\tor\tor.exe
      "C:\Users\Admin\AppData\Local\a5b260eb\tor\tor.exe" -f torrc
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:3684
    • C:\Users\Admin\AppData\Local\a5b260eb\tor\tor.exe
      "C:\Users\Admin\AppData\Local\a5b260eb\tor\tor.exe" -f torrc
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:4112
    • C:\Users\Admin\AppData\Local\a5b260eb\tor\tor.exe
      "C:\Users\Admin\AppData\Local\a5b260eb\tor\tor.exe" -f torrc
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:5044
    • C:\Users\Admin\AppData\Local\a5b260eb\tor\tor.exe
      "C:\Users\Admin\AppData\Local\a5b260eb\tor\tor.exe" -f torrc
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2688
    • C:\Users\Admin\AppData\Local\a5b260eb\tor\tor.exe
      "C:\Users\Admin\AppData\Local\a5b260eb\tor\tor.exe" -f torrc
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2248
    • C:\Users\Admin\AppData\Local\a5b260eb\tor\tor.exe
      "C:\Users\Admin\AppData\Local\a5b260eb\tor\tor.exe" -f torrc
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:32
    • C:\Users\Admin\AppData\Local\a5b260eb\tor\tor.exe
      "C:\Users\Admin\AppData\Local\a5b260eb\tor\tor.exe" -f torrc
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:4264
    • C:\Users\Admin\AppData\Local\a5b260eb\tor\tor.exe
      "C:\Users\Admin\AppData\Local\a5b260eb\tor\tor.exe" -f torrc
      2⤵
      • Executes dropped EXE
      PID:808
    • C:\Users\Admin\AppData\Local\a5b260eb\tor\tor.exe
      "C:\Users\Admin\AppData\Local\a5b260eb\tor\tor.exe" -f torrc
      2⤵
      • Executes dropped EXE
      PID:4112

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        cached-certs

        • Path C:\Users\Admin\AppData\Local\a5b260eb\tor\data\cached-certs
        • Size 15KB
        • SHA256 bf0569804aa1e104b0d801bf29697559749346ea1157d8b812cc6f176552d932
        • MD5 SHA1 SHA512 SSDEEP

        cached-microdesc-consensus.tmp

        • Path C:\Users\Admin\AppData\Local\a5b260eb\tor\data\cached-microdesc-consensus.tmp
        • Size 2.6MB
        • SHA256 1994d6d7b4f22815ab1b58cd593049f5139e9339de08f38cf152e546b2e329c2
        • MD5 SHA1 SHA512 SSDEEP

        cached-microdescs

        • Path C:\Users\Admin\AppData\Local\a5b260eb\tor\data\cached-microdescs
        • Size 20.4MB
        • SHA256 540a07a545bb27c4cd6d6cb3783be96d51716f4bf1909e3809bdbd7be13d2c86
        • MD5 SHA1 SHA512 SSDEEP

        cached-microdescs.new

        • Path C:\Users\Admin\AppData\Local\a5b260eb\tor\data\cached-microdescs.new
        • Size 20.4MB
        • SHA256 8b0cd29b41c048380cf810976e34784905eb6ecfedceaefd589af31aad5101e2
        • MD5 SHA1 SHA512 SSDEEP

        cached-microdescs.new

        • Path C:\Users\Admin\AppData\Local\a5b260eb\tor\data\cached-microdescs.new
        • Size 9.7MB
        • SHA256 6740bd60e60129d4fb963944448eea91b128a91af8694dc0e53e7cea719a32fa
        • MD5 SHA1 SHA512 SSDEEP

        state

        • Path C:\Users\Admin\AppData\Local\a5b260eb\tor\data\state
        • Size 232B
        • SHA256 2ea035aca184eae2a268ac5b29126d4428b0dc31ac2cd9857634f75ec2e5077c
        • MD5 SHA1 SHA512

        state

        • Path C:\Users\Admin\AppData\Local\a5b260eb\tor\data\state
        • Size 3KB
        • SHA256 e9492b8ddc9d8fea6f65b5ce0907bf7da5c6c9acc33c3f3143e7e2ca7150cc69
        • MD5 SHA1 SHA512

        libcrypto-1_1.dll

        • Path C:\Users\Admin\AppData\Local\a5b260eb\tor\libcrypto-1_1.dll
        • Size 1.7MB
        • SHA256 c8db0ff0f7047ed91b057005e86ad3a23eae616253313aa047c560d9eb398369
        • MD5 SHA1 SHA512 SSDEEP

        libssp-0.dll

        • Path C:\Users\Admin\AppData\Local\a5b260eb\tor\libssp-0.dll
        • Size 88KB
        • SHA256 cbb5236d923d4f4baf2f0d2797c72a2cbae42ef7ac0acce786daf5fdc5b456e6
        • MD5 SHA1 SHA512 SSDEEP

        tor.exe

        • Path C:\Users\Admin\AppData\Local\a5b260eb\tor\tor.exe
        • Size 973KB
        • SHA256 f9c1d18b50ce7484bf212cb61a9035602cfb90ebdfe66a077b9f6df73196a9f5
        • MD5 SHA1 SHA512 SSDEEP

        torrc

        • Path C:\Users\Admin\AppData\Local\a5b260eb\tor\torrc
        • Size 157B
        • SHA256 95e134044f370b2a96408d581f3c0381fe95388dae27c6d9598f44dc7d72b9ed
        • MD5 SHA1 SHA512

        zlib1.dll

        • Path C:\Users\Admin\AppData\Local\a5b260eb\tor\zlib1.dll
        • Size 52KB
        • SHA256 8688bd7ca55dcc0c23c429762776a0a43fe5b0332dfd5b79ef74e55d4bbc1183
        • MD5 SHA1 SHA512 SSDEEP

        libevent-2-1-6.dll

        • Path \Users\Admin\AppData\Local\a5b260eb\tor\libevent-2-1-6.dll
        • Size 366KB
        • SHA256 b65f9aa0c7912af64bd9b05e9322e994339a11b0c8907e6a6166d7b814bda838
        • MD5 SHA1 SHA512 SSDEEP

        libgcc_s_sjlj-1.dll

        • Path \Users\Admin\AppData\Local\a5b260eb\tor\libgcc_s_sjlj-1.dll
        • Size 286KB
        • SHA256 2922193133dabab5b82088d4e87484e2fac75e9e0c765dacaf22eb5f4f18b0c5
        • MD5 SHA1 SHA512 SSDEEP

        libssl-1_1.dll

        • Path \Users\Admin\AppData\Local\a5b260eb\tor\libssl-1_1.dll
        • Size 439KB
        • SHA256 c4d898b1a4285a45153af9ed88d79aa2a073dcb7225961b6b276b532b4d18b6f
        • MD5 SHA1 SHA512 SSDEEP

        libwinpthread-1.dll

        • Path \Users\Admin\AppData\Local\a5b260eb\tor\libwinpthread-1.dll
        • Size 188KB
        • SHA256 92cfd0277c8781a15a0f17b7aee6cff69631b9606a001101631f04b3381efc4e
        • MD5 SHA1 SHA512 SSDEEP

        memory/1596-215-0x00000000735B0000-0x00000000735EA000-memory.dmp

        memory/1596-1-0x0000000074370000-0x00000000743AA000-memory.dmp

        memory/1596-312-0x0000000072B10000-0x0000000072B4A000-memory.dmp

        memory/1596-76-0x0000000073C40000-0x0000000073C7A000-memory.dmp

        memory/1596-42-0x0000000073100000-0x000000007313A000-memory.dmp

        memory/1596-0-0x0000000000400000-0x0000000000BD8000-memory.dmp

        memory/3684-199-0x0000000073850000-0x000000007391E000-memory.dmp

        memory/3684-189-0x0000000073B90000-0x0000000073E5F000-memory.dmp

        memory/3684-224-0x0000000000AD0000-0x0000000000ED4000-memory.dmp

        memory/3684-225-0x0000000073B90000-0x0000000073E5F000-memory.dmp

        memory/3684-198-0x0000000073920000-0x00000000739A8000-memory.dmp

        memory/3684-263-0x0000000000AD0000-0x0000000000ED4000-memory.dmp

        memory/3684-188-0x0000000000AD0000-0x0000000000ED4000-memory.dmp

        memory/3684-192-0x0000000073AC0000-0x0000000073B88000-memory.dmp

        memory/3684-197-0x00000000739B0000-0x0000000073ABA000-memory.dmp

        memory/3684-196-0x0000000074330000-0x0000000074354000-memory.dmp

        memory/3684-194-0x0000000074360000-0x00000000743A9000-memory.dmp

        memory/3732-32-0x0000000073400000-0x000000007350A000-memory.dmp

        memory/3732-68-0x0000000000AD0000-0x0000000000ED4000-memory.dmp

        memory/3732-85-0x0000000000AD0000-0x0000000000ED4000-memory.dmp

        memory/3732-60-0x0000000000AD0000-0x0000000000ED4000-memory.dmp

        memory/3732-104-0x0000000000AD0000-0x0000000000ED4000-memory.dmp

        memory/3732-117-0x0000000000AD0000-0x0000000000ED4000-memory.dmp

        memory/3732-125-0x0000000000AD0000-0x0000000000ED4000-memory.dmp

        memory/3732-52-0x0000000000AD0000-0x0000000000ED4000-memory.dmp

        memory/3732-51-0x0000000001D00000-0x0000000001FCF000-memory.dmp

        memory/3732-48-0x0000000073400000-0x000000007350A000-memory.dmp

        memory/3732-50-0x00000000735A0000-0x000000007386F000-memory.dmp

        memory/3732-49-0x00000000733D0000-0x00000000733F4000-memory.dmp

        memory/3732-47-0x0000000073510000-0x0000000073598000-memory.dmp

        memory/3732-46-0x0000000073870000-0x000000007393E000-memory.dmp

        memory/3732-45-0x0000000073940000-0x0000000073989000-memory.dmp

        memory/3732-44-0x0000000073990000-0x0000000073A58000-memory.dmp

        memory/3732-160-0x0000000000AD0000-0x0000000000ED4000-memory.dmp

        memory/3732-43-0x0000000000AD0000-0x0000000000ED4000-memory.dmp

        memory/3732-38-0x00000000735A0000-0x000000007386F000-memory.dmp

        memory/3732-36-0x0000000001D00000-0x0000000001FCF000-memory.dmp

        memory/3732-34-0x0000000073990000-0x0000000073A58000-memory.dmp

        memory/3732-33-0x00000000733D0000-0x00000000733F4000-memory.dmp

        memory/3732-30-0x0000000073870000-0x000000007393E000-memory.dmp

        memory/3732-31-0x0000000073510000-0x0000000073598000-memory.dmp

        memory/3732-29-0x0000000073940000-0x0000000073989000-memory.dmp

        memory/3732-28-0x0000000000AD0000-0x0000000000ED4000-memory.dmp

        memory/4112-257-0x0000000073AC0000-0x0000000073B88000-memory.dmp

        memory/4112-254-0x0000000073B90000-0x0000000073E5F000-memory.dmp

        memory/4112-279-0x0000000073850000-0x000000007391E000-memory.dmp

        memory/4112-278-0x0000000073AC0000-0x0000000073B88000-memory.dmp

        memory/4112-277-0x0000000073B90000-0x0000000073E5F000-memory.dmp

        memory/4112-276-0x0000000000AD0000-0x0000000000ED4000-memory.dmp

        memory/4112-270-0x0000000073920000-0x00000000739A8000-memory.dmp

        memory/4112-268-0x00000000739B0000-0x0000000073ABA000-memory.dmp

        memory/4112-264-0x0000000074360000-0x00000000743A9000-memory.dmp

        memory/4112-266-0x0000000074330000-0x0000000074354000-memory.dmp

        memory/4112-261-0x0000000073850000-0x000000007391E000-memory.dmp

        memory/4476-157-0x0000000073400000-0x000000007350A000-memory.dmp

        memory/4476-170-0x0000000073400000-0x000000007350A000-memory.dmp

        memory/4476-154-0x0000000073940000-0x0000000073989000-memory.dmp

        memory/4476-172-0x0000000000AD0000-0x0000000000ED4000-memory.dmp

        memory/4476-161-0x0000000073510000-0x0000000073598000-memory.dmp

        memory/4476-163-0x0000000001120000-0x00000000011A8000-memory.dmp

        memory/4476-152-0x0000000073870000-0x000000007393E000-memory.dmp

        memory/4476-150-0x0000000073990000-0x0000000073A58000-memory.dmp

        memory/4476-171-0x00000000733D0000-0x00000000733F4000-memory.dmp

        memory/4476-174-0x0000000073990000-0x0000000073A58000-memory.dmp

        memory/4476-173-0x00000000735A0000-0x000000007386F000-memory.dmp

        memory/4476-176-0x0000000073940000-0x0000000073989000-memory.dmp

        memory/4476-175-0x0000000073870000-0x000000007393E000-memory.dmp

        memory/4476-158-0x00000000733D0000-0x00000000733F4000-memory.dmp

        memory/4476-146-0x0000000000AD0000-0x0000000000ED4000-memory.dmp

        memory/4476-148-0x00000000735A0000-0x000000007386F000-memory.dmp

        memory/5044-283-0x0000000000AD0000-0x0000000000ED4000-memory.dmp

        memory/5044-295-0x0000000073920000-0x00000000739A8000-memory.dmp

        memory/5044-294-0x0000000074360000-0x00000000743A9000-memory.dmp

        memory/5044-297-0x0000000074330000-0x0000000074354000-memory.dmp

        memory/5044-299-0x00000000739B0000-0x0000000073ABA000-memory.dmp

        memory/5044-300-0x0000000073850000-0x000000007391E000-memory.dmp

        memory/5044-292-0x0000000073B90000-0x0000000073E5F000-memory.dmp

        memory/5044-293-0x0000000073AC0000-0x0000000073B88000-memory.dmp

        memory/5044-313-0x0000000000AD0000-0x0000000000ED4000-memory.dmp

        memory/5044-322-0x0000000073B90000-0x0000000073E5F000-memory.dmp