Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-05-2024 13:01

General

  • Target

    f1b6c0789d43249c97ebce3616bd4b8f19b60a7ef8610bc96715d8a13466c8da.exe

  • Size

    405KB

  • MD5

    e52619c43b63967354da407fb1b7de57

  • SHA1

    80919a899ff2dbc1f8550bf4cb363f969c49e868

  • SHA256

    f1b6c0789d43249c97ebce3616bd4b8f19b60a7ef8610bc96715d8a13466c8da

  • SHA512

    1b88cda7011df2fb662d1c8194e0cbd7bb689b452c54e9ca211b95dd9386e081c27842a9972acc24ac26309bb1988ac83d107947851183c953efbbcc2b69da8e

  • SSDEEP

    6144:3w9D91dOrcN3ZGXNYFNmIkYvUIelVjjVtGRyFH4J:gtRfJcNYFNm8UhlZGseJ

Malware Config

Signatures

  • Blocklisted process makes network request 9 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 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.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • 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\f1b6c0789d43249c97ebce3616bd4b8f19b60a7ef8610bc96715d8a13466c8da.exe
    "C:\Users\Admin\AppData\Local\Temp\f1b6c0789d43249c97ebce3616bd4b8f19b60a7ef8610bc96715d8a13466c8da.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1236
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\spxtr.exe "C:\Users\Admin\AppData\Local\Temp\f1b6c0789d43249c97ebce3616bd4b8f19b60a7ef8610bc96715d8a13466c8da.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1644
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • Runs ping.exe
        PID:5096
      • C:\Users\Admin\AppData\Local\Temp\spxtr.exe
        C:\Users\Admin\AppData\Local\Temp\\spxtr.exe "C:\Users\Admin\AppData\Local\Temp\f1b6c0789d43249c97ebce3616bd4b8f19b60a7ef8610bc96715d8a13466c8da.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2652
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\Program Files\gozwr\hcxraeo.dll",Verify C:\Users\Admin\AppData\Local\Temp\spxtr.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
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2072

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    405KB

    MD5

    1245c6613e29025229e400b2703cb489

    SHA1

    7108c7354268d7cb2f998b2d892f8ab1f22bc119

    SHA256

    e3e1c89547c0f09da2262193ad7bdc6a200133f22d3b32037c2051b9fb51bd1b

    SHA512

    bbee65ea8ee7325d81fbc26d21feb96cba677351aca938e98299f1bc900aeef521fbf1e1f6d1453e10537307a00d2a2ea1373a4c566555b16cbd5a7e24d84c51

  • \??\c:\Program Files\gozwr\hcxraeo.dll

    Filesize

    228KB

    MD5

    0d35d2e8d1fc0eb52215d8593c38baba

    SHA1

    3c880167246eca8c1cc371a183a310ed53ba5cc4

    SHA256

    af1d94d932c17551fb7ad0b71dcb5bee514e7c5c0167c4749b4dede91dc18233

    SHA512

    a539a80bfae5edd001e1af2e9a9362477c485643acfeaadab6f31b48a8eee682f1e1ac15c31e616f46e22d1a74610b87bb152b8f3b7cdafb2cff504acf8d9719

  • memory/1236-0-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/1236-2-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/2072-11-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

  • memory/2072-13-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

  • memory/2072-14-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

  • memory/2652-6-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/2652-8-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB