Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    10-11-2024 01:24

General

  • Target

    8408bd03b4305c3f9e8917541a2f06d789003acebca3332929630000301bedba.exe

  • Size

    414KB

  • MD5

    456d433746127fea587949fe72d79c4e

  • SHA1

    3e710e3728e5754f1ad3c6386ec630df74834627

  • SHA256

    8408bd03b4305c3f9e8917541a2f06d789003acebca3332929630000301bedba

  • SHA512

    41f98ab230c4aa45c47e434c02e26e147ab67b787e9719e821ec5222f5d4eafd1b6bcc80f0e439c609d0d2e82e08d0a1b7381a209d6363f66acc2b14a776cc7e

  • SSDEEP

    6144:3w9D91dOrcN3ZGXNYFNmIkYvUIelVjjVtGRyFH4:gtRfJcNYFNm8UhlZGse

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 3 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
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • 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\8408bd03b4305c3f9e8917541a2f06d789003acebca3332929630000301bedba.exe
    "C:\Users\Admin\AppData\Local\Temp\8408bd03b4305c3f9e8917541a2f06d789003acebca3332929630000301bedba.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2344
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\qkgwf.exe "C:\Users\Admin\AppData\Local\Temp\8408bd03b4305c3f9e8917541a2f06d789003acebca3332929630000301bedba.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:2456
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:1560
      • C:\Users\Admin\AppData\Local\Temp\qkgwf.exe
        C:\Users\Admin\AppData\Local\Temp\\qkgwf.exe "C:\Users\Admin\AppData\Local\Temp\8408bd03b4305c3f9e8917541a2f06d789003acebca3332929630000301bedba.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2312
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\Program Files\yaghewqu\doyvi.dll",Verify C:\Users\Admin\AppData\Local\Temp\qkgwf.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
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2652

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \??\c:\Program Files\yaghewqu\doyvi.dll

    Filesize

    228KB

    MD5

    c148b59ba9862ef690f49ebb92036bb8

    SHA1

    d189177dd509c409f79d882ca7de064b7e2b91a4

    SHA256

    09e5ba98965d2880304a032b5a9e9193ff98511675fef3c4c9837533557460be

    SHA512

    f4e83ae248de3483b3a460c49327635a1abfc187090b26506640c6dff5b44288f11a73a8805efc4a3f6a396c55a39be903db5bb99ed06b7b0ece62483543c3e1

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

    Filesize

    414KB

    MD5

    158c47642b0a26e97e480a80595f2461

    SHA1

    e1f4b81be2df863ffb04284474e7d96ad10e0f6c

    SHA256

    d9290e257cfcdb41eb147946ca891f7eb3fa37b32b108b382c40aa00c99f2f20

    SHA512

    19523937ea8e9ed7b9b75125c524e4134994f8e80cc3acbe424684a580667933a8b6bd414e7a0f38d76b12ebbba3dd1f703f31432dd821a934cb636caf0c2425

  • memory/2312-9-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/2312-11-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/2344-0-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/2344-2-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/2456-8-0x0000000000370000-0x00000000003D4000-memory.dmp

    Filesize

    400KB

  • memory/2456-6-0x0000000000370000-0x00000000003D4000-memory.dmp

    Filesize

    400KB

  • memory/2652-17-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

  • memory/2652-18-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

  • memory/2652-20-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB