Analysis

  • max time kernel
    598s
  • max time network
    601s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240221-en
  • resource tags

    arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    09/04/2024, 13:10

General

  • Target
    23ac6a9a61ddc568b82e23d19873e1756be1450cd9989f698be3d18f083f24aa.bin.exe
  • Size 5.2MB
  • Sample240409-qegg6aba8y
  • SHA256 23ac6a9a61ddc568b82e23d19873e1756be1450cd9989f698be3d18f083f24aa
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • BitRAT

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

  • BitRAT payload 1 IoCs
  • ACProtect 1.3x - 1.4x DLL software 7 IoCs

    Detects file using ACProtect software.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 9 IoCs
  • UPX packed file 30 IoCs

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

  • Adds Run key to start application 2 TTPs 3 IoCs
  • Looks up external IP address via web service 43 IoCs

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

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

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

  • Suspicious behavior: RenamesItself 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\23ac6a9a61ddc568b82e23d19873e1756be1450cd9989f698be3d18f083f24aa.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\23ac6a9a61ddc568b82e23d19873e1756be1450cd9989f698be3d18f083f24aa.bin.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:3744
    • C:\Users\Admin\AppData\Local\e0c93a5e\tor\javaupdate.exe
      "C:\Users\Admin\AppData\Local\e0c93a5e\tor\javaupdate.exe" -f torrc
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:656

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        cached-microdesc-consensus

        • Path C:\Users\Admin\AppData\Local\e0c93a5e\tor\data\cached-microdesc-consensus
        • Size 2.6MB
        • SHA256 d4244a317932d44c7cdc64bf716a1452c61bfafd28b8ab0fa85fb785725e8dbc
        • MD5 SHA1 SHA512 SSDEEP

        cached-microdescs.new

        • Path C:\Users\Admin\AppData\Local\e0c93a5e\tor\data\cached-microdescs.new
        • Size 11.3MB
        • SHA256 ac59afa942cb877bd8b5321ce39cb2cd747cb6004252909f7c1145a1992a13f6
        • MD5 SHA1 SHA512 SSDEEP

        javaupdate.exe

        • Path C:\Users\Admin\AppData\Local\e0c93a5e\tor\javaupdate.exe
        • Size 973KB
        • SHA256 f9c1d18b50ce7484bf212cb61a9035602cfb90ebdfe66a077b9f6df73196a9f5
        • MD5 SHA1 SHA512 SSDEEP

        libcrypto-1_1.dll

        • Path C:\Users\Admin\AppData\Local\e0c93a5e\tor\libcrypto-1_1.dll
        • Size 1.7MB
        • SHA256 c8db0ff0f7047ed91b057005e86ad3a23eae616253313aa047c560d9eb398369
        • MD5 SHA1 SHA512 SSDEEP

        libevent-2-1-6.dll

        • Path C:\Users\Admin\AppData\Local\e0c93a5e\tor\libevent-2-1-6.dll
        • Size 366KB
        • SHA256 b65f9aa0c7912af64bd9b05e9322e994339a11b0c8907e6a6166d7b814bda838
        • MD5 SHA1 SHA512 SSDEEP

        libgcc_s_sjlj-1.dll

        • Path C:\Users\Admin\AppData\Local\e0c93a5e\tor\libgcc_s_sjlj-1.dll
        • Size 286KB
        • SHA256 2922193133dabab5b82088d4e87484e2fac75e9e0c765dacaf22eb5f4f18b0c5
        • MD5 SHA1 SHA512 SSDEEP

        libssl-1_1.dll

        • Path C:\Users\Admin\AppData\Local\e0c93a5e\tor\libssl-1_1.dll
        • Size 439KB
        • SHA256 c4d898b1a4285a45153af9ed88d79aa2a073dcb7225961b6b276b532b4d18b6f
        • MD5 SHA1 SHA512 SSDEEP

        libssp-0.dll

        • Path C:\Users\Admin\AppData\Local\e0c93a5e\tor\libssp-0.dll
        • Size 88KB
        • SHA256 cbb5236d923d4f4baf2f0d2797c72a2cbae42ef7ac0acce786daf5fdc5b456e6
        • MD5 SHA1 SHA512 SSDEEP

        libwinpthread-1.dll

        • Path C:\Users\Admin\AppData\Local\e0c93a5e\tor\libwinpthread-1.dll
        • Size 188KB
        • SHA256 92cfd0277c8781a15a0f17b7aee6cff69631b9606a001101631f04b3381efc4e
        • MD5 SHA1 SHA512 SSDEEP

        torrc

        • Path C:\Users\Admin\AppData\Local\e0c93a5e\tor\torrc
        • Size 139B
        • SHA256 58b5958bc1a62b6a4e48d5ecf9773a87ff8c23d8736d7695b13ba158a57e9bae
        • MD5 SHA1 SHA512

        zlib1.dll

        • Path C:\Users\Admin\AppData\Local\e0c93a5e\tor\zlib1.dll
        • Size 52KB
        • SHA256 8688bd7ca55dcc0c23c429762776a0a43fe5b0332dfd5b79ef74e55d4bbc1183
        • MD5 SHA1 SHA512 SSDEEP

        memory/656-68-0x0000000073FC0000-0x0000000074088000-memory.dmp

        memory/656-22-0x0000000000820000-0x0000000000C24000-memory.dmp

        memory/656-35-0x0000000074090000-0x000000007415E000-memory.dmp

        memory/656-41-0x0000000073F90000-0x0000000073FB4000-memory.dmp

        memory/656-42-0x0000000001AB0000-0x0000000001B38000-memory.dmp

        memory/656-40-0x0000000073E80000-0x0000000073F8A000-memory.dmp

        memory/656-43-0x0000000001AB0000-0x0000000001D7F000-memory.dmp

        memory/656-45-0x0000000074160000-0x00000000741A9000-memory.dmp

        memory/656-44-0x0000000073B20000-0x0000000073DEF000-memory.dmp

        memory/656-46-0x0000000073DF0000-0x0000000073E78000-memory.dmp

        memory/656-82-0x0000000000820000-0x0000000000C24000-memory.dmp

        memory/656-131-0x0000000000820000-0x0000000000C24000-memory.dmp

        memory/656-123-0x0000000000820000-0x0000000000C24000-memory.dmp

        memory/656-65-0x0000000000820000-0x0000000000C24000-memory.dmp

        memory/656-67-0x0000000074090000-0x000000007415E000-memory.dmp

        memory/656-36-0x0000000073FC0000-0x0000000074088000-memory.dmp

        memory/656-81-0x0000000000820000-0x0000000000C24000-memory.dmp

        memory/656-111-0x0000000000820000-0x0000000000C24000-memory.dmp

        memory/656-140-0x0000000000820000-0x0000000000C24000-memory.dmp

        memory/656-90-0x0000000001AB0000-0x0000000001B38000-memory.dmp

        memory/656-91-0x0000000001AB0000-0x0000000001D7F000-memory.dmp

        memory/656-95-0x0000000000820000-0x0000000000C24000-memory.dmp

        memory/656-103-0x0000000000820000-0x0000000000C24000-memory.dmp

        memory/3744-327-0x0000000074B60000-0x0000000074B9C000-memory.dmp

        memory/3744-119-0x0000000074B60000-0x0000000074B9C000-memory.dmp

        memory/3744-1-0x0000000074B90000-0x0000000074BCC000-memory.dmp

        memory/3744-0-0x0000000000400000-0x0000000000D54000-memory.dmp

        memory/3744-139-0x0000000074B60000-0x0000000074B9C000-memory.dmp

        memory/3744-201-0x0000000072BE0000-0x0000000072C1C000-memory.dmp

        memory/3744-49-0x0000000073700000-0x000000007373C000-memory.dmp

        memory/3744-80-0x0000000000400000-0x0000000000D54000-memory.dmp

        memory/3744-240-0x0000000074B90000-0x0000000074BCC000-memory.dmp

        memory/3744-252-0x0000000073700000-0x000000007373C000-memory.dmp

        memory/3744-299-0x0000000074B60000-0x0000000074B9C000-memory.dmp

        memory/3744-186-0x0000000074B60000-0x0000000074B9C000-memory.dmp

        memory/3744-363-0x0000000074B60000-0x0000000074B9C000-memory.dmp