Analysis

  • max time kernel
    177s
  • max time network
    183s
  • platform
    windows7_x64
  • resource
    win7-20231023-en
  • resource tags

    arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
  • submitted
    03/11/2023, 09:50

General

  • Target

    NEAS.b6a952258c6722fa63d5dda475ff04c0.exe

  • Size

    106KB

  • MD5

    b6a952258c6722fa63d5dda475ff04c0

  • SHA1

    3b3b4cdbcc5cbe3773615af3ab861463b4db2772

  • SHA256

    39c6a6f56048b45ea0a126a7f1618f62da11f2adffb1727ea6d7322e65ff6b28

  • SHA512

    0f52ed8a4c37d77046b00bfa03917bd59b69f9cc59f5eb241808eb65111cf6ae67a31278f508afdcca282eb94f7839cc849eac429dc4eb5b88fc2ff3c879bf60

  • SSDEEP

    1536:TRiAXaKD5grAhdVA2VukXKzMf3liaL+SWzR+fy1ZZosMiZ7RtEs:liAXaKDLVaroj6SWzosZGyRtEs

Malware Config

Signatures

  • Blocklisted process makes network request 9 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 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.

  • 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 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEAS.b6a952258c6722fa63d5dda475ff04c0.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.b6a952258c6722fa63d5dda475ff04c0.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1728
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&c:\kwktj.exe "C:\Users\Admin\AppData\Local\Temp\NEAS.b6a952258c6722fa63d5dda475ff04c0.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2760
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • Runs ping.exe
        PID:2752
      • \??\c:\kwktj.exe
        c:\kwktj.exe "C:\Users\Admin\AppData\Local\Temp\NEAS.b6a952258c6722fa63d5dda475ff04c0.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2488
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\uaqmwlo\trnqe.dll",GetWindowClass c:\kwktj.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)
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2656

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\kwktj.exe

    Filesize

    106KB

    MD5

    c54df8ecf6c989fc3c7b41e3e0b64952

    SHA1

    837650123d73a519d3ee2488c937df90fdafda0d

    SHA256

    1f6fcdd976dddeb31bd31d6e99d7bef37594395ab400fc34a19b2314b028758f

    SHA512

    30c5eae25d76a97b6c67142d1f9a02c3f8cfb8e57d08e56f979a3007101a6a681c204d93616581e2de3fc4749fad463338b60bc7b8a1e6a2de848691f2bd6d00

  • \??\c:\kwktj.exe

    Filesize

    106KB

    MD5

    c54df8ecf6c989fc3c7b41e3e0b64952

    SHA1

    837650123d73a519d3ee2488c937df90fdafda0d

    SHA256

    1f6fcdd976dddeb31bd31d6e99d7bef37594395ab400fc34a19b2314b028758f

    SHA512

    30c5eae25d76a97b6c67142d1f9a02c3f8cfb8e57d08e56f979a3007101a6a681c204d93616581e2de3fc4749fad463338b60bc7b8a1e6a2de848691f2bd6d00

  • \??\c:\uaqmwlo\trnqe.dll

    Filesize

    63KB

    MD5

    06c39ca503305efbf7274f6bf9394f28

    SHA1

    bec4daadab49f1f58a951d9cc1b2d7c1e2ae8450

    SHA256

    19f33ba32f20dae1ea6a6b87824dc8e3e74527b34f9cd01a6e4f67e3e79dd867

    SHA512

    e6c8b19892b5ce5108909824ad37b0fe0eed2459939f0249133bf3e3c1470308d6d51aa3fbf42aabcbf37bb2412c8a27bff445e23dc0495910ec5f445055d931

  • \uaqmwlo\trnqe.dll

    Filesize

    63KB

    MD5

    06c39ca503305efbf7274f6bf9394f28

    SHA1

    bec4daadab49f1f58a951d9cc1b2d7c1e2ae8450

    SHA256

    19f33ba32f20dae1ea6a6b87824dc8e3e74527b34f9cd01a6e4f67e3e79dd867

    SHA512

    e6c8b19892b5ce5108909824ad37b0fe0eed2459939f0249133bf3e3c1470308d6d51aa3fbf42aabcbf37bb2412c8a27bff445e23dc0495910ec5f445055d931

  • \uaqmwlo\trnqe.dll

    Filesize

    63KB

    MD5

    06c39ca503305efbf7274f6bf9394f28

    SHA1

    bec4daadab49f1f58a951d9cc1b2d7c1e2ae8450

    SHA256

    19f33ba32f20dae1ea6a6b87824dc8e3e74527b34f9cd01a6e4f67e3e79dd867

    SHA512

    e6c8b19892b5ce5108909824ad37b0fe0eed2459939f0249133bf3e3c1470308d6d51aa3fbf42aabcbf37bb2412c8a27bff445e23dc0495910ec5f445055d931

  • \uaqmwlo\trnqe.dll

    Filesize

    63KB

    MD5

    06c39ca503305efbf7274f6bf9394f28

    SHA1

    bec4daadab49f1f58a951d9cc1b2d7c1e2ae8450

    SHA256

    19f33ba32f20dae1ea6a6b87824dc8e3e74527b34f9cd01a6e4f67e3e79dd867

    SHA512

    e6c8b19892b5ce5108909824ad37b0fe0eed2459939f0249133bf3e3c1470308d6d51aa3fbf42aabcbf37bb2412c8a27bff445e23dc0495910ec5f445055d931

  • \uaqmwlo\trnqe.dll

    Filesize

    63KB

    MD5

    06c39ca503305efbf7274f6bf9394f28

    SHA1

    bec4daadab49f1f58a951d9cc1b2d7c1e2ae8450

    SHA256

    19f33ba32f20dae1ea6a6b87824dc8e3e74527b34f9cd01a6e4f67e3e79dd867

    SHA512

    e6c8b19892b5ce5108909824ad37b0fe0eed2459939f0249133bf3e3c1470308d6d51aa3fbf42aabcbf37bb2412c8a27bff445e23dc0495910ec5f445055d931

  • memory/1728-0-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/1728-2-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/2488-6-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/2656-15-0x0000000010000000-0x0000000010036000-memory.dmp

    Filesize

    216KB

  • memory/2656-9-0x0000000010000000-0x0000000010036000-memory.dmp

    Filesize

    216KB

  • memory/2656-14-0x0000000010000000-0x0000000010036000-memory.dmp

    Filesize

    216KB

  • memory/2656-13-0x0000000010000000-0x0000000010036000-memory.dmp

    Filesize

    216KB

  • memory/2656-16-0x0000000000210000-0x0000000000212000-memory.dmp

    Filesize

    8KB

  • memory/2656-17-0x0000000010000000-0x0000000010036000-memory.dmp

    Filesize

    216KB

  • memory/2656-19-0x0000000000210000-0x0000000000212000-memory.dmp

    Filesize

    8KB

  • memory/2656-25-0x0000000010000000-0x0000000010036000-memory.dmp

    Filesize

    216KB

  • memory/2656-26-0x0000000010000000-0x0000000010036000-memory.dmp

    Filesize

    216KB

  • memory/2656-28-0x0000000010000000-0x0000000010036000-memory.dmp

    Filesize

    216KB

  • memory/2656-34-0x0000000010000000-0x0000000010036000-memory.dmp

    Filesize

    216KB