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Overview

overview

8

Static

static

3

05c0b4a72c...bb.exe

windows7-x64

8

05c0b4a72c...bb.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    28/03/2024, 01:58

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General

  • Target

    05c0b4a72c242a3a6462da908883eccd7855dd9486d0395f386082f4b4c82abb.exe

  • Size

    402KB

  • MD5

    d854b3e2d53a589a6bedb6c8a8d1f3b8

  • SHA1

    0f18692da2e5707e320aed6b4abfed2f6b990e9b

  • SHA256

    05c0b4a72c242a3a6462da908883eccd7855dd9486d0395f386082f4b4c82abb

  • SHA512

    babe92247fe3fccdaaa3457c7afbe02ccb458157fd915bd2573a23d55e25575010c02ff39d17824de1330b2ed4f0b6d213dfd3df78165ae21c57525de54f7856

  • 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\05c0b4a72c242a3a6462da908883eccd7855dd9486d0395f386082f4b4c82abb.exe
    "C:\Users\Admin\AppData\Local\Temp\05c0b4a72c242a3a6462da908883eccd7855dd9486d0395f386082f4b4c82abb.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2516
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\tqlur.exe "C:\Users\Admin\AppData\Local\Temp\05c0b4a72c242a3a6462da908883eccd7855dd9486d0395f386082f4b4c82abb.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1580
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • Runs ping.exe
        PID:2528
      • C:\Users\Admin\AppData\Local\Temp\tqlur.exe
        C:\Users\Admin\AppData\Local\Temp\\tqlur.exe "C:\Users\Admin\AppData\Local\Temp\05c0b4a72c242a3a6462da908883eccd7855dd9486d0395f386082f4b4c82abb.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2648
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\Program Files\ysztc\vxaiy.dll",Verify C:\Users\Admin\AppData\Local\Temp\tqlur.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:2696

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \??\c:\Program Files\ysztc\vxaiy.dll
    Filesize

    228KB

    MD5

    8fadd84cca613e9b317b812cf0548ea7

    SHA1

    e8651d1c94c82927e0d4f8d4c1f5f357a8155fd8

    SHA256

    96e4e62e97f3763f0c30ee1892102d38e510a45f2c48e39c006c10dd7a239f8c

    SHA512

    63d8e1e817fb66d4bdd84cb3979c367a47800b7ba0a43705c5756634827257295d68b1330cd99be6c483b3006d5bc134f5c29f189ca60926deaa7b4a4c9b494f

    Download Submit

  • \Users\Admin\AppData\Local\Temp\tqlur.exe
    Filesize

    403KB

    MD5

    9cf21854bcc96407387033d6752ff62b

    SHA1

    f04dac33251697bafcc2f48e1d56ebeb48fd2453

    SHA256

    81a94bfe0579b490f393c1f696fc6b57e2a2dd45563f2a2cd773e1934f71fe99

    SHA512

    ac78ea15594f75dbc47f8d26686510ecc21e297a3024005c5312651d6a9322108cdad41f8cb15eb34f149d24d61d9a360537d54f94a26cf76f3fa95452373fe8

    Download Submit

  • memory/1580-7-0x0000000001EF0000-0x0000000001F54000-memory.dmp

    Filesize

    400KB

    Download

  • memory/1580-8-0x0000000001EF0000-0x0000000001F54000-memory.dmp

    Filesize

    400KB

    Download

  • memory/2516-0-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

    Download

  • memory/2516-2-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

    Download

  • memory/2648-9-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

    Download

  • memory/2648-11-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

    Download

  • memory/2696-17-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

    Download

  • memory/2696-18-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

    Download

  • memory/2696-20-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

    Download