Analysis

  • max time kernel
    99s
  • max time network
    111s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    17/10/2024, 00:42

General

  • Target

    c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N.exe

  • Size

    230KB

  • MD5

    419dd4c9c0bc71f42d9cc51111821b60

  • SHA1

    a3482fd1713761374c061d1db26bb03924252bf6

  • SHA256

    c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0

  • SHA512

    5b6e352015ff708bc2ad8dad9f226a908e8ae3960efe6e92b24320c785a6b5f3ff1326e905f7fea19acd17a7549b1d585a5702d71755004a8ef91dbbe6be5841

  • SSDEEP

    6144:6Piynu0cvT2wQc4+T6YWtQSh/iuGkq7L2/zlUMp:6Piynu0cK9g6YWtp7TWSO4

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 7 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.

  • Drops file in Program Files directory 4 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N.exe
    "C:\Users\Admin\AppData\Local\Temp\c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2216
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\yjicv.exe "C:\Users\Admin\AppData\Local\Temp\c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:2248
      • 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:2200
      • C:\Users\Admin\AppData\Local\Temp\yjicv.exe
        C:\Users\Admin\AppData\Local\Temp\\yjicv.exe "C:\Users\Admin\AppData\Local\Temp\c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2904
        • \??\c:\Program Files\jbach\qwzasdxl.exe
          "c:\Program Files\jbach\qwzasdxl.exe" "c:\Program Files\jbach\qwzasdxl.dll",EnumSourceFiles C:\Users\Admin\AppData\Local\Temp\yjicv.exe
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Adds Run key to start application
          • Enumerates connected drives
          • Writes to the Master Boot Record (MBR)
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2560

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • \??\c:\Program Files\jbach\qwzasdxl.dll

          Filesize

          180KB

          MD5

          74c8c7a666c4e469293a550b1857f20a

          SHA1

          94b9e07949a110ffc9699abcbe11de507fe0e3a2

          SHA256

          ea7f06dc8839b51acdf069b61fc17aa8ddab884b192588c62295a89126882d54

          SHA512

          0a3d5a1e00dba435a81b3f7fc1592b95c00f5577f6ae4e991758c7d1cd2e52b8ce6081bd5daec022629aabf3118457f4e2188c16ab88b61de86fc7580fc066c5

        • \Program Files\jbach\qwzasdxl.exe

          Filesize

          43KB

          MD5

          51138beea3e2c21ec44d0932c71762a8

          SHA1

          8939cf35447b22dd2c6e6f443446acc1bf986d58

          SHA256

          5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

          SHA512

          794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

        • \Users\Admin\AppData\Local\Temp\yjicv.exe

          Filesize

          231KB

          MD5

          12be8f35c4f90f40b5f38bce66940645

          SHA1

          b777c8b5ab57e7b9cb45187fef6ccbf1044daf08

          SHA256

          7aac44a964781c78a20e7852e90adf5b86d76c3359be76cb9614ed6754ecc648

          SHA512

          e3e96a01da2f288306e2db675ca42c018fd2e7c45ba0dd5f3eee0254a52244d508ec21376e80b1dd1f0b9c95703236385360a29a94582bb2129dea79975704f8

        • memory/2216-2-0x0000000000400000-0x0000000000481C34-memory.dmp

          Filesize

          519KB

        • memory/2216-0-0x0000000000400000-0x0000000000481C34-memory.dmp

          Filesize

          519KB

        • memory/2248-6-0x0000000002300000-0x0000000002382000-memory.dmp

          Filesize

          520KB

        • memory/2248-7-0x0000000002300000-0x0000000002382000-memory.dmp

          Filesize

          520KB

        • memory/2560-24-0x0000000010000000-0x0000000010076000-memory.dmp

          Filesize

          472KB

        • memory/2560-23-0x0000000010000000-0x0000000010076000-memory.dmp

          Filesize

          472KB

        • memory/2560-25-0x0000000010000000-0x0000000010076000-memory.dmp

          Filesize

          472KB

        • memory/2560-28-0x0000000010000000-0x0000000010076000-memory.dmp

          Filesize

          472KB

        • memory/2904-16-0x0000000000400000-0x0000000000481C34-memory.dmp

          Filesize

          519KB

        • memory/2904-9-0x0000000000400000-0x0000000000481C34-memory.dmp

          Filesize

          519KB