Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    11-06-2024 13:33

General

  • Target

    3f77bf57e73ac007bf7d0f0795b250f902a3d4575309b8b7f6949e689809a03e.exe

  • Size

    407KB

  • MD5

    c4a1fb9ad37a19f01a4736ff89bf0043

  • SHA1

    0e8cee769e085598da36bd734dff41ec30725122

  • SHA256

    3f77bf57e73ac007bf7d0f0795b250f902a3d4575309b8b7f6949e689809a03e

  • SHA512

    b75229d18e4f5ac326fe7f687ca6f3dd1838056ae17126d84e5112b3df7e9ce2702903162e5447f0c0605cbd393bb5e29b865685617e7d1de801358f1900cef7

  • SSDEEP

    6144:3w9D91dOrcN3ZGXNYFNmIkYvUIelVjjVtGRyFH4C:gtRfJcNYFNm8UhlZGseC

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.

  • 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 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3f77bf57e73ac007bf7d0f0795b250f902a3d4575309b8b7f6949e689809a03e.exe
    "C:\Users\Admin\AppData\Local\Temp\3f77bf57e73ac007bf7d0f0795b250f902a3d4575309b8b7f6949e689809a03e.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2040
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\shwyw.exe "C:\Users\Admin\AppData\Local\Temp\3f77bf57e73ac007bf7d0f0795b250f902a3d4575309b8b7f6949e689809a03e.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2228
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • Runs ping.exe
        PID:1744
      • C:\Users\Admin\AppData\Local\Temp\shwyw.exe
        C:\Users\Admin\AppData\Local\Temp\\shwyw.exe "C:\Users\Admin\AppData\Local\Temp\3f77bf57e73ac007bf7d0f0795b250f902a3d4575309b8b7f6949e689809a03e.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2360
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\Program Files\dayxkyh\qokpi.dll",Verify C:\Users\Admin\AppData\Local\Temp\shwyw.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:2240

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \??\c:\Program Files\dayxkyh\qokpi.dll

    Filesize

    228KB

    MD5

    66e5ac7a87a8f08c197be391baaf58bf

    SHA1

    0b75233d6cb70d98c0b3b733d75a91cf1ed5bf0e

    SHA256

    ab8a37be4b10b6bffa761d38bd420fb783dba8498842af439dd6265cd96650bb

    SHA512

    0088b7047f5645ca52d2e66aa923df4f9a4f429fe6e693c3f3faa59a74bd9f612722689190fd63d9496665d8ce89c5bd89e2456667b8d434e50b4138ce9c50a1

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

    Filesize

    407KB

    MD5

    cff7ac00ab3dd2f136518f0cd799d2ab

    SHA1

    6727be40cab07c15abdd868cf64a87e25923005c

    SHA256

    b55b5c2d8a68d036e5342a543bcc3d9631bc97dd50be3178a2607c013e95667a

    SHA512

    8863bb6831edcda3e835240fddefa857c9e8bcc3104e2e2114458d64c491908a20afe6a990b9cbebbfcf5e137195554dcd2306062f3950ca16aa2ca615ad3cfd

  • memory/2040-0-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/2040-2-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/2228-8-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/2228-7-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/2240-17-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

  • memory/2240-18-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

  • memory/2240-20-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

  • memory/2360-9-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/2360-11-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB