Analysis

  • max time kernel
    150s
  • 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
    10-11-2024 01:30

General

  • Target

    54fcac70431b432f35751c308c028ff35350b3cf3019a0bdd28d3d80b8db4ed8.exe

  • Size

    410KB

  • MD5

    e62821ca3e227ea0dcf49df005e0b991

  • SHA1

    5051c0a586fadc90ae517d392fef451fd18d6f44

  • SHA256

    54fcac70431b432f35751c308c028ff35350b3cf3019a0bdd28d3d80b8db4ed8

  • SHA512

    03e9dcdaddf891ad81572a94c2c49688754695c59892a99fd4e0c783088e5fcd836cce229645e54a56dbbbff83bd87b28f3bc7422db24ff916dac4643e620eb4

  • 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 3 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
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • 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\54fcac70431b432f35751c308c028ff35350b3cf3019a0bdd28d3d80b8db4ed8.exe
    "C:\Users\Admin\AppData\Local\Temp\54fcac70431b432f35751c308c028ff35350b3cf3019a0bdd28d3d80b8db4ed8.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2336
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\hjpsw.exe "C:\Users\Admin\AppData\Local\Temp\54fcac70431b432f35751c308c028ff35350b3cf3019a0bdd28d3d80b8db4ed8.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:2300
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:2460
      • C:\Users\Admin\AppData\Local\Temp\hjpsw.exe
        C:\Users\Admin\AppData\Local\Temp\\hjpsw.exe "C:\Users\Admin\AppData\Local\Temp\54fcac70431b432f35751c308c028ff35350b3cf3019a0bdd28d3d80b8db4ed8.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3568
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\Program Files\cndiy\jwooj.dll",Verify C:\Users\Admin\AppData\Local\Temp\hjpsw.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
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2236

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    410KB

    MD5

    868ca73a357449cc208af21a7892b103

    SHA1

    f8d2a13d64d584cd8b3b0b52417e53a5b3361adf

    SHA256

    2a34549096f7cadf16ab5ce5409c10663baa1ff92f68599b0d1024fbd5592524

    SHA512

    3fb95c92f5d00a7f0e3b03abff8f0bad3dd5e5f87480f6337a5f9a7431f59a812798d4f95eac3e26c4644b2b62ccafa15583a8c884b044be84b3413f2026fef5

  • \??\c:\Program Files\cndiy\jwooj.dll

    Filesize

    228KB

    MD5

    cf7837de27715bb2e53ee2106774291f

    SHA1

    d0f09cd923164727d3b53a1454afb4b7235dee8e

    SHA256

    c1aa8a9917294dc79aef47e4f0efaf37cdb85ac9385d8865d2086d12923b4b55

    SHA512

    0be42548c55fe9f0985aa7ad422ad7cc764d266707f60e426fd1502b4bcac77ab7129cfdf9b7b8d84e71fb3a3fab35c8a250b79c24ea4c18223152288afecfba

  • memory/2236-10-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

  • memory/2236-11-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

  • memory/2236-13-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

  • memory/2336-0-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/2336-2-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/3568-7-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB