Resubmissions

17/04/2024, 11:59

240417-n55assfe7110

17/04/2024, 11:59

240417-n5yg9afe7x10

17/04/2024, 11:59

240417-n5rdyaea3610

17/04/2024, 11:59

240417-n5qseaea3510

17/04/2024, 11:59

240417-n5p6wafe6y10

17/04/2024, 06:14

240417-gzcv2aff7510

Analysis

  • max time kernel
    299s
  • max time network
    300s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    17/04/2024, 06:14

General

  • Target
    426bc8bac5cb97b5340b0f347cc70024fb5cc64041149ad923c815aedaf17a7a.exe
  • Size 7.8MB
  • Sample240417-gzcv2aff75
  • SHA256 426bc8bac5cb97b5340b0f347cc70024fb5cc64041149ad923c815aedaf17a7a
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • bitrat

Version
  • 1.38

C2
  • sef7qgz77oamhl5gimls62lekmig5ormf6dcgftblhaxt2cn7emkbuid.onion:80

Attributes
  • communication_password

    81dc9bdb52d04dc20036dbd8313ed055

  • install_dir

    appdata

  • install_file

    HealthCheck.exe

  • tor_process

    WebDebugger

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 9 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 20 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: RenamesItself 54 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\426bc8bac5cb97b5340b0f347cc70024fb5cc64041149ad923c815aedaf17a7a.exe
    "C:\Users\Admin\AppData\Local\Temp\426bc8bac5cb97b5340b0f347cc70024fb5cc64041149ad923c815aedaf17a7a.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:2872
    • C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe
      "C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe" -f torrc
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:1040
    • C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe
      "C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe" -f torrc
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:4516
    • C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe
      "C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe" -f torrc
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2076
    • C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe
      "C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe" -f torrc
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:5104
    • C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe
      "C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe" -f torrc
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:376
    • C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe
      "C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe" -f torrc
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:4332
    • C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe
      "C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe" -f torrc
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2564
    • C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe
      "C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe" -f torrc
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2968
    • C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe
      "C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe" -f torrc
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:3684

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        WebDebugger.exe

        • Path C:\Users\Admin\AppData\Local\00e31655\tor\WebDebugger.exe
        • Size 973KB
        • SHA256 f9c1d18b50ce7484bf212cb61a9035602cfb90ebdfe66a077b9f6df73196a9f5
        • MD5 SHA1 SHA512 SSDEEP

        cached-certs

        • Path C:\Users\Admin\AppData\Local\00e31655\tor\data\cached-certs
        • Size 13KB
        • SHA256 43fe89317342e19f278ee530504a03bd27bde8a7a27404e5c802735e09471822
        • MD5 SHA1 SHA512 SSDEEP

        cached-certs

        • Path C:\Users\Admin\AppData\Local\00e31655\tor\data\cached-certs
        • Size 15KB
        • SHA256 794a5d568e7c5ab999da2b162dfa6fb6724cc8bd91975cf1337268cb026e83a2
        • MD5 SHA1 SHA512 SSDEEP

        cached-microdesc-consensus.tmp

        • Path C:\Users\Admin\AppData\Local\00e31655\tor\data\cached-microdesc-consensus.tmp
        • Size 2.6MB
        • SHA256 207b7078faa3872b6e17df851fb737a191623d8d37188cfab0725ff6ec226716
        • MD5 SHA1 SHA512 SSDEEP

        cached-microdescs

        • Path C:\Users\Admin\AppData\Local\00e31655\tor\data\cached-microdescs
        • Size 20.2MB
        • SHA256 8ff83fd32c655d11a2f2e035354564d1c8df2d6178ad0ab4c2d264a0da1289d5
        • MD5 SHA1 SHA512 SSDEEP

        cached-microdescs.new

        • Path C:\Users\Admin\AppData\Local\00e31655\tor\data\cached-microdescs.new
        • Size 20.2MB
        • SHA256 805ca561a8fd7a390f60eb7e7622c22e071e11e03caf6277c74816e2d740f681
        • MD5 SHA1 SHA512 SSDEEP

        state

        • Path C:\Users\Admin\AppData\Local\00e31655\tor\data\state
        • Size 232B
        • SHA256 3e1e73b7b978d5641f9f7f681a047db4e9b7e4535d5f3b1691a42fcf5a175ce5
        • MD5 SHA1 SHA512

        state

        • Path C:\Users\Admin\AppData\Local\00e31655\tor\data\state
        • Size 3KB
        • SHA256 57040f00be51b7024f607f0ad5d3eb7914a2ecf30e258a29d6d69cb99f30534c
        • MD5 SHA1 SHA512

        libcrypto-1_1.dll

        • Path C:\Users\Admin\AppData\Local\00e31655\tor\libcrypto-1_1.dll
        • Size 1.7MB
        • SHA256 c8db0ff0f7047ed91b057005e86ad3a23eae616253313aa047c560d9eb398369
        • MD5 SHA1 SHA512 SSDEEP

        libwinpthread-1.dll

        • Path C:\Users\Admin\AppData\Local\00e31655\tor\libwinpthread-1.dll
        • Size 188KB
        • SHA256 92cfd0277c8781a15a0f17b7aee6cff69631b9606a001101631f04b3381efc4e
        • MD5 SHA1 SHA512 SSDEEP

        torrc

        • Path C:\Users\Admin\AppData\Local\00e31655\tor\torrc
        • Size 157B
        • SHA256 3142e667dd2251755b91092cf15f90c64a1551f725d7a6f07abd0b083a6e6397
        • MD5 SHA1 SHA512

        libevent-2-1-6.dll

        • Path \Users\Admin\AppData\Local\00e31655\tor\libevent-2-1-6.dll
        • Size 366KB
        • SHA256 b65f9aa0c7912af64bd9b05e9322e994339a11b0c8907e6a6166d7b814bda838
        • MD5 SHA1 SHA512 SSDEEP

        libgcc_s_sjlj-1.dll

        • Path \Users\Admin\AppData\Local\00e31655\tor\libgcc_s_sjlj-1.dll
        • Size 286KB
        • SHA256 2922193133dabab5b82088d4e87484e2fac75e9e0c765dacaf22eb5f4f18b0c5
        • MD5 SHA1 SHA512 SSDEEP

        libssl-1_1.dll

        • Path \Users\Admin\AppData\Local\00e31655\tor\libssl-1_1.dll
        • Size 439KB
        • SHA256 c4d898b1a4285a45153af9ed88d79aa2a073dcb7225961b6b276b532b4d18b6f
        • MD5 SHA1 SHA512 SSDEEP

        libssp-0.dll

        • Path \Users\Admin\AppData\Local\00e31655\tor\libssp-0.dll
        • Size 88KB
        • SHA256 cbb5236d923d4f4baf2f0d2797c72a2cbae42ef7ac0acce786daf5fdc5b456e6
        • MD5 SHA1 SHA512 SSDEEP

        zlib1.dll

        • Path \Users\Admin\AppData\Local\00e31655\tor\zlib1.dll
        • Size 52KB
        • SHA256 8688bd7ca55dcc0c23c429762776a0a43fe5b0332dfd5b79ef74e55d4bbc1183
        • MD5 SHA1 SHA512 SSDEEP

        memory/376-309-0x0000000072FD0000-0x000000007309E000-memory.dmp

        memory/376-310-0x0000000073310000-0x00000000735DF000-memory.dmp

        memory/376-307-0x00000000730A0000-0x0000000073128000-memory.dmp

        memory/376-302-0x0000000073AE0000-0x0000000073B29000-memory.dmp

        memory/376-301-0x0000000073240000-0x0000000073308000-memory.dmp

        memory/376-304-0x0000000073130000-0x000000007323A000-memory.dmp

        memory/376-326-0x00000000012E0000-0x00000000016E4000-memory.dmp

        memory/376-303-0x0000000073AB0000-0x0000000073AD4000-memory.dmp

        memory/1040-38-0x0000000072BE0000-0x0000000072CEA000-memory.dmp

        memory/1040-126-0x00000000012E0000-0x00000000016E4000-memory.dmp

        memory/1040-60-0x0000000000D50000-0x0000000000DD8000-memory.dmp

        memory/1040-51-0x00000000012E0000-0x00000000016E4000-memory.dmp

        memory/1040-47-0x0000000072D20000-0x0000000072FEF000-memory.dmp

        memory/1040-78-0x00000000012E0000-0x00000000016E4000-memory.dmp

        memory/1040-93-0x00000000012E0000-0x00000000016E4000-memory.dmp

        memory/1040-18-0x00000000012E0000-0x00000000016E4000-memory.dmp

        memory/1040-102-0x00000000012E0000-0x00000000016E4000-memory.dmp

        memory/1040-110-0x00000000012E0000-0x00000000016E4000-memory.dmp

        memory/1040-118-0x00000000012E0000-0x00000000016E4000-memory.dmp

        memory/1040-36-0x0000000072D20000-0x0000000072FEF000-memory.dmp

        memory/1040-45-0x0000000073040000-0x000000007310E000-memory.dmp

        memory/1040-32-0x0000000072FF0000-0x0000000073039000-memory.dmp

        memory/1040-31-0x0000000073040000-0x000000007310E000-memory.dmp

        memory/1040-43-0x00000000012E0000-0x00000000016E4000-memory.dmp

        memory/1040-37-0x0000000072CF0000-0x0000000072D14000-memory.dmp

        memory/1040-41-0x0000000072B50000-0x0000000072BD8000-memory.dmp

        memory/1040-40-0x0000000073110000-0x00000000731D8000-memory.dmp

        memory/1040-39-0x0000000000D50000-0x0000000000DD8000-memory.dmp

        memory/1040-158-0x00000000012E0000-0x00000000016E4000-memory.dmp

        memory/1040-52-0x00000000012E0000-0x00000000016E4000-memory.dmp

        memory/2076-271-0x00000000012E0000-0x00000000016E4000-memory.dmp

        memory/2076-192-0x0000000073310000-0x00000000735DF000-memory.dmp

        memory/2076-226-0x0000000073310000-0x00000000735DF000-memory.dmp

        memory/2076-224-0x0000000073240000-0x0000000073308000-memory.dmp

        memory/2076-187-0x0000000073AB0000-0x0000000073AD4000-memory.dmp

        memory/2076-188-0x0000000073130000-0x000000007323A000-memory.dmp

        memory/2076-185-0x0000000073AE0000-0x0000000073B29000-memory.dmp

        memory/2076-225-0x0000000073AB0000-0x0000000073AD4000-memory.dmp

        memory/2076-195-0x0000000072FD0000-0x000000007309E000-memory.dmp

        memory/2076-214-0x00000000012E0000-0x00000000016E4000-memory.dmp

        memory/2076-215-0x0000000073AE0000-0x0000000073B29000-memory.dmp

        memory/2076-189-0x00000000730A0000-0x0000000073128000-memory.dmp

        memory/2076-184-0x0000000073240000-0x0000000073308000-memory.dmp

        memory/2872-213-0x0000000072D30000-0x0000000072D6A000-memory.dmp

        memory/2872-101-0x00000000733F0000-0x000000007342A000-memory.dmp

        memory/2872-0-0x0000000000400000-0x0000000000BDB000-memory.dmp

        memory/2872-325-0x0000000073AF0000-0x0000000073B2A000-memory.dmp

        memory/2872-324-0x0000000072D30000-0x0000000072D6A000-memory.dmp

        memory/2872-42-0x0000000072880000-0x00000000728BA000-memory.dmp

        memory/2872-1-0x0000000073AF0000-0x0000000073B2A000-memory.dmp

        memory/4516-171-0x0000000072D20000-0x0000000072FEF000-memory.dmp

        memory/4516-162-0x0000000072B50000-0x0000000072BD8000-memory.dmp

        memory/4516-149-0x0000000072D20000-0x0000000072FEF000-memory.dmp

        memory/4516-147-0x00000000012E0000-0x00000000016E4000-memory.dmp

        memory/4516-156-0x0000000072FF0000-0x0000000073039000-memory.dmp

        memory/4516-157-0x0000000072CF0000-0x0000000072D14000-memory.dmp

        memory/4516-160-0x0000000072BE0000-0x0000000072CEA000-memory.dmp

        memory/4516-172-0x0000000073110000-0x00000000731D8000-memory.dmp

        memory/4516-173-0x0000000073040000-0x000000007310E000-memory.dmp

        memory/4516-170-0x00000000012E0000-0x00000000016E4000-memory.dmp

        memory/4516-169-0x0000000072CF0000-0x0000000072D14000-memory.dmp

        memory/4516-153-0x0000000073040000-0x000000007310E000-memory.dmp

        memory/4516-150-0x0000000073110000-0x00000000731D8000-memory.dmp

        memory/5104-259-0x00000000012E0000-0x00000000016E4000-memory.dmp

        memory/5104-286-0x0000000073310000-0x00000000735DF000-memory.dmp

        memory/5104-287-0x0000000073240000-0x0000000073308000-memory.dmp

        memory/5104-288-0x0000000072FD0000-0x000000007309E000-memory.dmp

        memory/5104-289-0x00000000012E0000-0x00000000016E4000-memory.dmp

        memory/5104-269-0x0000000073310000-0x00000000735DF000-memory.dmp

        memory/5104-270-0x0000000073240000-0x0000000073308000-memory.dmp

        memory/5104-280-0x00000000730A0000-0x0000000073128000-memory.dmp

        memory/5104-278-0x0000000073130000-0x000000007323A000-memory.dmp

        memory/5104-276-0x0000000073AB0000-0x0000000073AD4000-memory.dmp

        memory/5104-274-0x0000000073AE0000-0x0000000073B29000-memory.dmp

        memory/5104-272-0x0000000072FD0000-0x000000007309E000-memory.dmp