Analysis

  • max time kernel
    149s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-11-2024 19:05

General

  • Target

    10b23b9d0153a49243e378463e51cdbc3eac944e4fbd1de39992c6d72f7b72cc.exe

  • Size

    416KB

  • MD5

    e1aa000f192ae32bdd6d7b598759c0d2

  • SHA1

    b483b94b4ca4f2cd430c10c2ff58a3c4e5529622

  • SHA256

    10b23b9d0153a49243e378463e51cdbc3eac944e4fbd1de39992c6d72f7b72cc

  • SHA512

    8b7f4a464097bf10cc9f29b454be7f460c9690f7b8e606c843f1069ea224fb095db7558b7befdf1c23dc7425b3112f3c2df1d0162760d5d4eee38190fff0294c

  • 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\10b23b9d0153a49243e378463e51cdbc3eac944e4fbd1de39992c6d72f7b72cc.exe
    "C:\Users\Admin\AppData\Local\Temp\10b23b9d0153a49243e378463e51cdbc3eac944e4fbd1de39992c6d72f7b72cc.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2648
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\zwskg.exe "C:\Users\Admin\AppData\Local\Temp\10b23b9d0153a49243e378463e51cdbc3eac944e4fbd1de39992c6d72f7b72cc.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:1248
      • 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:2376
      • C:\Users\Admin\AppData\Local\Temp\zwskg.exe
        C:\Users\Admin\AppData\Local\Temp\\zwskg.exe "C:\Users\Admin\AppData\Local\Temp\10b23b9d0153a49243e378463e51cdbc3eac944e4fbd1de39992c6d72f7b72cc.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:4796
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\Program Files\cnjqg\jbavl.dll",Verify C:\Users\Admin\AppData\Local\Temp\zwskg.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:2256

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    416KB

    MD5

    1af432feda8aaec06e91ecfc9540eb05

    SHA1

    cd1dde344d822a9365a03ba4e62c2e8f858a4506

    SHA256

    dc6ff5ac7b31603fca60194faeac9f75b61c83757aaa3a1e4c05254cbb161127

    SHA512

    3fcf041e7b7771250f985e4f6e7f9083c5707a436cee74e17325a04a82478610c7974624b50a694eeba4d30a9d2fe408a7fc944c793ca716fb3ec5f84e1c2236

  • \??\c:\Program Files\cnjqg\jbavl.dll

    Filesize

    228KB

    MD5

    71872008b2ea6bde3aa9e0dc98d1d868

    SHA1

    311ea1d7f4d4c33b7c728969e0f041a98373ef46

    SHA256

    b1b55d9e753ef4dd36b6b9fd362156a5e1e261ef5ebe8e0e33f72174ac0f1b0b

    SHA512

    aa3c1aeeb6392134a6bada80d75e58d602a7162d93d730c6f6c61036b8822157ad02a32ac9d798dd340dc35a4711f81d4e2f7542554e62fee3de78e7ea857aa1

  • memory/2256-11-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

  • memory/2256-13-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

  • memory/2256-14-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

  • memory/2648-0-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/2648-2-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/4796-6-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/4796-8-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB