Overview

overview

8

Static

static

3

8d7fce0d01...d2.exe

windows7-x64

8

8d7fce0d01...d2.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    28-04-2024 02:14

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General

  • Target

    8d7fce0d0101f11f080a791cc70244c10ef893e64676cfcb02a8148798d032d2.exe

  • Size

    404KB

  • MD5

    cd46e532a6bd92adb4defd18ae275da6

  • SHA1

    4d6da5ae5937fb1545f99f7f96fe3d975b078807

  • SHA256

    8d7fce0d0101f11f080a791cc70244c10ef893e64676cfcb02a8148798d032d2

  • SHA512

    7b1a0b8b5778e7000d677f0943964463aaa0a05e42511040d260cdee39675e3ce68e0a0b6f917312e77e54c8dc1ad4be0328b62991a91f02d669c607d3b6abad

  • 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\8d7fce0d0101f11f080a791cc70244c10ef893e64676cfcb02a8148798d032d2.exe
    "C:\Users\Admin\AppData\Local\Temp\8d7fce0d0101f11f080a791cc70244c10ef893e64676cfcb02a8148798d032d2.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2960
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\rvrpy.exe "C:\Users\Admin\AppData\Local\Temp\8d7fce0d0101f11f080a791cc70244c10ef893e64676cfcb02a8148798d032d2.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1960
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • Runs ping.exe
        PID:3044
      • C:\Users\Admin\AppData\Local\Temp\rvrpy.exe
        C:\Users\Admin\AppData\Local\Temp\\rvrpy.exe "C:\Users\Admin\AppData\Local\Temp\8d7fce0d0101f11f080a791cc70244c10ef893e64676cfcb02a8148798d032d2.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2172
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\Program Files\dzqkw\grdpe.dll",Verify C:\Users\Admin\AppData\Local\Temp\rvrpy.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:2096

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \??\c:\Program Files\dzqkw\grdpe.dll
    Filesize

    228KB

    MD5

    e497a98c7a181df117dc10232e50f984

    SHA1

    a66b3579e65ada5a53090f9dabc6f904753727e9

    SHA256

    de5fcdae484ca4d6b041a479a5168484a9c38c8ce1aff73389bc26656357473c

    SHA512

    d19c7d57fcd02fdecbadd9a8cd9ea80df9ed84b1af37ef02cdf7aac7b7f1798c07f8c0992ae1b79915df9ae468235be567e05765b169f09575d58c8b6189babe

    Download Submit

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

    405KB

    MD5

    c5b2e13631890a1a76644f6ca5b0cbe8

    SHA1

    bf1563aba8baf8153d90d65d7ab958dc99005383

    SHA256

    fb73780566e358b003a5c059fb2aa018c24dcb92b9d16dbb450315a578c65dd9

    SHA512

    7fedc801521bd3e8bb9d72a269ff5ea72dae2634226579ba24a592139ad9a5b96888a8b5862d25de4690ecfbbf427a9ac7dcb9794d3c3c41c37dd745470069e0

    Download Submit

  • memory/1960-5-0x0000000000420000-0x0000000000484000-memory.dmp

    Filesize

    400KB

    Download

  • memory/2096-17-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

    Download

  • memory/2096-16-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

    Download

  • memory/2096-18-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

    Download

  • memory/2096-20-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

    Download

  • memory/2172-8-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

    Download

  • memory/2172-10-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

    Download

  • memory/2960-0-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

    Download

  • memory/2960-2-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

    Download