Analysis

  • max time kernel
    147s
  • max time network
    136s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    11-08-2024 02:53

General

  • Target

    d66e7b23bc909447e0e5e52c85c60ee62bb785419c5b66bcb04da9a53402f912.exe

  • Size

    258KB

  • MD5

    db21558922a70ca44b73bab04a6ae8e8

  • SHA1

    82d34b70aa58e6a0ac5794b3e9d1af08c6f3a9ac

  • SHA256

    d66e7b23bc909447e0e5e52c85c60ee62bb785419c5b66bcb04da9a53402f912

  • SHA512

    0e04bdabc7b26206f5f0e8733156441008e390059b124495a94d5c35a5e0d4964ba10bd6113338609d6bef78fbf139dc83769ce49ca4799380051f2f820408b0

  • SSDEEP

    6144:iyHJ4wTB5Ia9p+S0dSpTU+h/zquE1j57Lu6Bwc772:ig4wTvoS05kzNEj7Lu6n

Malware Config

Signatures

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

  • 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\d66e7b23bc909447e0e5e52c85c60ee62bb785419c5b66bcb04da9a53402f912.exe
    "C:\Users\Admin\AppData\Local\Temp\d66e7b23bc909447e0e5e52c85c60ee62bb785419c5b66bcb04da9a53402f912.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1848
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\ylvmq.exe "C:\Users\Admin\AppData\Local\Temp\d66e7b23bc909447e0e5e52c85c60ee62bb785419c5b66bcb04da9a53402f912.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:2684
      • 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:2780
      • C:\Users\Admin\AppData\Local\Temp\ylvmq.exe
        C:\Users\Admin\AppData\Local\Temp\\ylvmq.exe "C:\Users\Admin\AppData\Local\Temp\d66e7b23bc909447e0e5e52c85c60ee62bb785419c5b66bcb04da9a53402f912.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:2700
        • \??\c:\Program Files\hzmcr\evroawpr.exe
          "c:\Program Files\hzmcr\evroawpr.exe" "c:\Program Files\hzmcr\evroawpr.dll",Compliance C:\Users\Admin\AppData\Local\Temp\ylvmq.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:2864

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \??\c:\Program Files\hzmcr\evroawpr.dll

    Filesize

    179KB

    MD5

    7c0a2e12422f4e6c0570e5dc70e95f69

    SHA1

    72c34c7442859fd3ebc4c3f268ae8d32bd3f383a

    SHA256

    bcfac9fa803644344cee008df9539c5c49125bc032d3296508670d1ec39162d6

    SHA512

    072b80e1f93099f3e462545332e6a109ae7ffc3774872bf791fe7bc9c2a9245dbd2f5be9fff8ba253f6bba6d003829a834a078e980009a774965155923ed2c07

  • \Program Files\hzmcr\evroawpr.exe

    Filesize

    43KB

    MD5

    51138beea3e2c21ec44d0932c71762a8

    SHA1

    8939cf35447b22dd2c6e6f443446acc1bf986d58

    SHA256

    5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

    SHA512

    794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

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

    Filesize

    258KB

    MD5

    461d118f2e17b56eb816325aeee46848

    SHA1

    2dba3081a64f8c1c22d2619ce87192e30ac4254e

    SHA256

    fa20c92ac5b18c5d89393842cf11818028f652153a71686fad1fb6f4e344e65b

    SHA512

    c345e81ef19e532b1a42576a3d8938c88fe01f154e45e76676972ff865a9dab37b72ff64b08d95b32ad5e6b76d702532518ef76469e14d2520b9ae3c0f3cf956

  • memory/1848-1-0x0000000000020000-0x0000000000021000-memory.dmp

    Filesize

    4KB

  • memory/1848-3-0x0000000000400000-0x000000000044D01D-memory.dmp

    Filesize

    308KB

  • memory/1848-0-0x0000000000400000-0x000000000044D01D-memory.dmp

    Filesize

    308KB

  • memory/2684-5-0x0000000000170000-0x00000000001BE000-memory.dmp

    Filesize

    312KB

  • memory/2700-18-0x0000000000400000-0x000000000044D01D-memory.dmp

    Filesize

    308KB

  • memory/2700-10-0x0000000000020000-0x0000000000021000-memory.dmp

    Filesize

    4KB

  • memory/2700-9-0x0000000000400000-0x000000000044D01D-memory.dmp

    Filesize

    308KB

  • memory/2864-26-0x0000000010000000-0x000000001004F000-memory.dmp

    Filesize

    316KB

  • memory/2864-25-0x0000000010000000-0x000000001004F000-memory.dmp

    Filesize

    316KB

  • memory/2864-24-0x0000000010000000-0x000000001004F000-memory.dmp

    Filesize

    316KB

  • memory/2864-28-0x0000000010000000-0x000000001004F000-memory.dmp

    Filesize

    316KB

  • memory/2864-29-0x00000000001C0000-0x00000000001C1000-memory.dmp

    Filesize

    4KB

  • memory/2864-30-0x0000000010000000-0x000000001004F000-memory.dmp

    Filesize

    316KB

  • memory/2864-33-0x0000000010000000-0x000000001004F000-memory.dmp

    Filesize

    316KB