Overview

overview

8

Static

static

3

989750f39b...42.exe

windows7-x64

8

989750f39b...42.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    23-05-2024 02:18

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General

  • Target

    989750f39b8bba73ac7b26bcb9f1b9ccd6040fdada3e0e726bc45363468c8142.exe

  • Size

    405KB

  • MD5

    14f856f513c103fd32f2a066c4a9406b

  • SHA1

    1ff2290a7f9d20923da64671a9ff1b8b5bade527

  • SHA256

    989750f39b8bba73ac7b26bcb9f1b9ccd6040fdada3e0e726bc45363468c8142

  • SHA512

    e41efc02195e0b240376750e161c85ae40350d1e4f5ec0fe7f0b974d0fb4e50964d2b430f58762e97d04845d6f3bcd6af445c0ad142bce832ce4f3b7e63fc6d5

  • SSDEEP

    6144:3w9D91dOrcN3ZGXNYFNmIkYvUIelVjjVtGRyFH4:gtRfJcNYFNm8UhlZGse

Score
8/10
bootkitpersistencespywarestealer

Malware Config

Signatures

  • Blocklisted process makes network request 10 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 6 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • 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.

    bootkitpersistence
  • 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 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\989750f39b8bba73ac7b26bcb9f1b9ccd6040fdada3e0e726bc45363468c8142.exe
    "C:\Users\Admin\AppData\Local\Temp\989750f39b8bba73ac7b26bcb9f1b9ccd6040fdada3e0e726bc45363468c8142.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2848
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\xcmbie.exe "C:\Users\Admin\AppData\Local\Temp\989750f39b8bba73ac7b26bcb9f1b9ccd6040fdada3e0e726bc45363468c8142.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2608
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • Runs ping.exe
        PID:2896
      • C:\Users\Admin\AppData\Local\Temp\xcmbie.exe
        C:\Users\Admin\AppData\Local\Temp\\xcmbie.exe "C:\Users\Admin\AppData\Local\Temp\989750f39b8bba73ac7b26bcb9f1b9ccd6040fdada3e0e726bc45363468c8142.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2524
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\Program Files\himfzsx\ktrsr.dll",Verify C:\Users\Admin\AppData\Local\Temp\xcmbie.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:2616

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \??\c:\Program Files\himfzsx\ktrsr.dll
    Filesize

    228KB

    MD5

    bf64da676263d7b2bcddacf9e4cbd5b1

    SHA1

    494af3da9e22e24e50189cc565ef8ea9536d2a79

    SHA256

    a2e8ce54a8fa2b6c27f86e565ea844fe026b133c9b2d0db338023c710b9cb18c

    SHA512

    d53ba2e09d6b94dec3fbeacdafec7929023d4a213389347f8327b76c299305738fe622e64557c71afbedfcd81154948ea8072c85619bf12d20bf580bf500811d

    Download Submit
  • \Users\Admin\AppData\Local\Temp\xcmbie.exe
    Filesize

    405KB

    MD5

    29e1c9df3febc60469d541a06b1e6941

    SHA1

    b009737325347dc0edfdf44c04be59201576e00e

    SHA256

    6c589548931d2bcbdfe76313b8ea318cafefa9883f97117836096f9d8bc13a55

    SHA512

    8758f25f44b5ed46767f01a8064f89b8f9aa8dc5692a0ee87fbbebb2f89792efaec1ccccf00cc7d8c7b7352db7fbbada1fdd5f3e3b10e64a4e6a9e2efd6a2852

    Download Submit
  • memory/2524-7-0x0000000000400000-0x0000000000464000-memory.dmp
    Filesize

    400KB

    Download
  • memory/2524-9-0x0000000000400000-0x0000000000464000-memory.dmp
    Filesize

    400KB

    Download
  • memory/2616-15-0x0000000010000000-0x0000000010080000-memory.dmp
    Filesize

    512KB

    Download
  • memory/2616-16-0x0000000010000000-0x0000000010080000-memory.dmp
    Filesize

    512KB

    Download
  • memory/2616-17-0x0000000010000000-0x0000000010080000-memory.dmp
    Filesize

    512KB

    Download
  • memory/2616-18-0x0000000010000000-0x0000000010080000-memory.dmp
    Filesize

    512KB

    Download
  • memory/2616-19-0x0000000010000000-0x0000000010080000-memory.dmp
    Filesize

    512KB

    Download
  • memory/2616-21-0x0000000010000000-0x0000000010080000-memory.dmp
    Filesize

    512KB

    Download
  • memory/2848-0-0x0000000000400000-0x0000000000464000-memory.dmp
    Filesize

    400KB

    Download
  • memory/2848-2-0x0000000000400000-0x0000000000464000-memory.dmp
    Filesize

    400KB

    Download