Analysis

  • max time kernel
    149s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-06-2024 13:32

General

  • Target

    cc8058b2aa85f39a646fc8aefbe8ee4767af9ec8eb518af8fbbf501f1543566a.exe

  • Size

    406KB

  • MD5

    6b5ea479b3d938f82138a3f456b9896b

  • SHA1

    f214db6c0dbe3d5ccd8215f585ccf749895acce3

  • SHA256

    cc8058b2aa85f39a646fc8aefbe8ee4767af9ec8eb518af8fbbf501f1543566a

  • SHA512

    54bd0667c7e7af04515841f6f2180a4119dfbd8a71a5569d622111275a771fd4c591df343ea246e7e9e2827a20794fb3d24b6a34fa28e826b26f5b951b0d2188

  • SSDEEP

    6144:3w9D91dOrcN3ZGXNYFNmIkYvUIelVjjVtGRyFH4:gtRfJcNYFNm8UhlZGse

Malware Config

Signatures

  • Blocklisted process makes network request 8 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cc8058b2aa85f39a646fc8aefbe8ee4767af9ec8eb518af8fbbf501f1543566a.exe
    "C:\Users\Admin\AppData\Local\Temp\cc8058b2aa85f39a646fc8aefbe8ee4767af9ec8eb518af8fbbf501f1543566a.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3268
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\jbsytqog.exe "C:\Users\Admin\AppData\Local\Temp\cc8058b2aa85f39a646fc8aefbe8ee4767af9ec8eb518af8fbbf501f1543566a.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2416
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • Runs ping.exe
        PID:924
      • C:\Users\Admin\AppData\Local\Temp\jbsytqog.exe
        C:\Users\Admin\AppData\Local\Temp\\jbsytqog.exe "C:\Users\Admin\AppData\Local\Temp\cc8058b2aa85f39a646fc8aefbe8ee4767af9ec8eb518af8fbbf501f1543566a.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2040
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\Program Files\cruszjaf\jpshfj.dll",Verify C:\Users\Admin\AppData\Local\Temp\jbsytqog.exe
          4⤵
          • Blocklisted process makes network request
          • Loads dropped DLL
          • Adds Run key to start application
          • Enumerates connected drives
          • Writes to the Master Boot Record (MBR)
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4556

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\jbsytqog.exe

    Filesize

    406KB

    MD5

    dc05b7e8c7c62649426c4047eaf69ebd

    SHA1

    240859d6f08aedd5384379a977a1727b789f668d

    SHA256

    0b4b375defd4d9080cfa1d49544e7b7ae9be0b1da8e45b773b03548f0470271d

    SHA512

    28f2b9955a7c6f61f98d383c02399dd11a4b4a122c234a6048b787db72b2d71960d4f8137bf18fd6ce612c5b68b3eb791dcf140c2320c55ac2fbaa855a4a0274

  • \??\c:\Program Files\cruszjaf\jpshfj.dll

    Filesize

    228KB

    MD5

    e50b87227d8a927d43f52b11b7cd6202

    SHA1

    92d0ab718192b4ab9b3706bfd857100ba08f2d0f

    SHA256

    8b73cfda720ef715e21491f59c62ff0918f666d5690735bd03c4e5ce6014706a

    SHA512

    b3a431a1c466fedd5bf5644b2b0eefa947be14f57558f6ee6a2659ec961d18297dcc655e2bd89b89f847482c8aaea58ec46aff252451ab7904b5d7d8330b8d2c

  • memory/2040-6-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/2040-8-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/3268-0-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/3268-2-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/4556-11-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

  • memory/4556-13-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

  • memory/4556-14-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB