Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    10-11-2024 01:24

General

  • Target

    89e6b09f800e5a35629f2ca491bc9112955dd65a1f25bd0ae7d125774c4209cb.exe

  • Size

    201KB

  • MD5

    ed2438c1b05266d53173915d007acdf5

  • SHA1

    a33627fa61b0dd3183dd87ad529df784ea8da114

  • SHA256

    89e6b09f800e5a35629f2ca491bc9112955dd65a1f25bd0ae7d125774c4209cb

  • SHA512

    44b8076f6f7762d31413e010b8094d664a78e7bd1caeaafa9da9a953751679dc66e58cc0539e03e7c88554543231bcefdad4d96c58048b398278a45a8e7799ad

  • SSDEEP

    3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkT:X2vnSwjaOcADw9cUeCOf

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\89e6b09f800e5a35629f2ca491bc9112955dd65a1f25bd0ae7d125774c4209cb.exe
    "C:\Users\Admin\AppData\Local\Temp\89e6b09f800e5a35629f2ca491bc9112955dd65a1f25bd0ae7d125774c4209cb.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2236
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\vecluftpz.exe "C:\Users\Admin\AppData\Local\Temp\89e6b09f800e5a35629f2ca491bc9112955dd65a1f25bd0ae7d125774c4209cb.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:2112
      • 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:2988
      • C:\Users\Admin\AppData\Local\Temp\vecluftpz.exe
        C:\Users\Admin\AppData\Local\Temp\\vecluftpz.exe "C:\Users\Admin\AppData\Local\Temp\89e6b09f800e5a35629f2ca491bc9112955dd65a1f25bd0ae7d125774c4209cb.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:1360
        • \??\c:\Program Files\nrzlf\cqxwv.exe
          "c:\Program Files\nrzlf\cqxwv.exe" "c:\Program Files\nrzlf\cqxwv.dll",Compliance C:\Users\Admin\AppData\Local\Temp\vecluftpz.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:2268

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \??\c:\Program Files\nrzlf\cqxwv.dll

    Filesize

    141KB

    MD5

    d1fb6ec8c407a19679a6fbc38591a285

    SHA1

    738dd4c58072dbf2dc694f605b8f93618ea9a6b1

    SHA256

    0635b90694968ff16e7d4f051c510153eb7bd4cf0160924660633b888a796b89

    SHA512

    0014259c9110f271bc3e1c193a33e4e6a98d854e1345c738036abc44a6018c0aee726fc4fa3c0f8796b642f3c5cdb3b8d1a357f1f1bb1bcad1a55dd5a9968644

  • \Program Files\nrzlf\cqxwv.exe

    Filesize

    43KB

    MD5

    51138beea3e2c21ec44d0932c71762a8

    SHA1

    8939cf35447b22dd2c6e6f443446acc1bf986d58

    SHA256

    5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

    SHA512

    794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

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

    Filesize

    202KB

    MD5

    87de696130b856b71031141237edae25

    SHA1

    3ce02938f87fb0a8d3076df855b48655f8ec3860

    SHA256

    01b2122a2cb84cd070735048cada09093e52dba26249aa30feb312e917f446bc

    SHA512

    db14e9791d60c7da20ecb2259b29a3dd7997c334a85dd96373d12d441c4cfecd7182e7f1a54f94ec921eea1bb57935d54f61d10eb5e2b51db063edee938780b5

  • memory/1360-19-0x0000000000400000-0x000000000044901D-memory.dmp

    Filesize

    292KB

  • memory/1360-10-0x0000000000400000-0x000000000044901D-memory.dmp

    Filesize

    292KB

  • memory/1360-11-0x0000000000400000-0x000000000044901D-memory.dmp

    Filesize

    292KB

  • memory/2112-6-0x0000000000260000-0x00000000002AA000-memory.dmp

    Filesize

    296KB

  • memory/2236-4-0x0000000000400000-0x000000000044901D-memory.dmp

    Filesize

    292KB

  • memory/2236-2-0x0000000000400000-0x000000000044901D-memory.dmp

    Filesize

    292KB

  • memory/2236-0-0x0000000000400000-0x000000000044901D-memory.dmp

    Filesize

    292KB

  • memory/2236-1-0x0000000000400000-0x000000000044901D-memory.dmp

    Filesize

    292KB

  • memory/2268-26-0x0000000010000000-0x000000001004E000-memory.dmp

    Filesize

    312KB

  • memory/2268-27-0x0000000010000000-0x000000001004E000-memory.dmp

    Filesize

    312KB

  • memory/2268-28-0x0000000010000000-0x000000001004E000-memory.dmp

    Filesize

    312KB

  • memory/2268-29-0x0000000010000000-0x000000001004E000-memory.dmp

    Filesize

    312KB

  • memory/2268-30-0x0000000010000000-0x000000001004E000-memory.dmp

    Filesize

    312KB

  • memory/2268-32-0x0000000010000000-0x000000001004E000-memory.dmp

    Filesize

    312KB