Overview

overview

8

Static

static

3

6caef51435...98.exe

windows7-x64

8

6caef51435...98.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    150s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    19-04-2024 04:18

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General

  • Target

    6caef51435d8fe6e1385bb43c5d9a7b9c1da63e6a96deb69f5627f170263b098.exe

  • Size

    404KB

  • MD5

    afb2d1659defbc870ec42cfb1361e3d7

  • SHA1

    b16036f717087b3d039b34ee7c59df825c5a7a5d

  • SHA256

    6caef51435d8fe6e1385bb43c5d9a7b9c1da63e6a96deb69f5627f170263b098

  • SHA512

    5a8f8b35c504379ae204168d32451d3340633a4b1a0cab13a1680bd69360cb96c2dd34c4eda0ab162cd0cf909aa672b844e2b75aab5b422611c4d58fdee1bc28

  • 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\6caef51435d8fe6e1385bb43c5d9a7b9c1da63e6a96deb69f5627f170263b098.exe
    "C:\Users\Admin\AppData\Local\Temp\6caef51435d8fe6e1385bb43c5d9a7b9c1da63e6a96deb69f5627f170263b098.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2000
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\oipjb.exe "C:\Users\Admin\AppData\Local\Temp\6caef51435d8fe6e1385bb43c5d9a7b9c1da63e6a96deb69f5627f170263b098.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1856
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • Runs ping.exe
        PID:2912
      • C:\Users\Admin\AppData\Local\Temp\oipjb.exe
        C:\Users\Admin\AppData\Local\Temp\\oipjb.exe "C:\Users\Admin\AppData\Local\Temp\6caef51435d8fe6e1385bb43c5d9a7b9c1da63e6a96deb69f5627f170263b098.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2976
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\Program Files\rlagv\gcpua.dll",Verify C:\Users\Admin\AppData\Local\Temp\oipjb.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:2636

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \??\c:\Program Files\rlagv\gcpua.dll
    Filesize

    228KB

    MD5

    896fe466763f2e4f4cd0b84d51a938d0

    SHA1

    71e764de6d108d33134bb4d5d43b074fd63aa31a

    SHA256

    ef13bdca1d8042f5a26f79ab243ddc97a5ea39f7cd9edaef069227f878895cae

    SHA512

    40cc75dff9c3227a31f076c04bbac3e74a218f109a20b14fdaae937005d414d5dba1eecf3b72c5d4f3f06c396b69f5b63c7c6d38f95a634e7910700f2e9b392c

    Download Submit

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

    404KB

    MD5

    6d43c3475802f8b4f99d1a5fcc5d55ba

    SHA1

    96650936d7cc71383a9b867a6fafe7394a29b3ff

    SHA256

    c98bd86785b60f2cf121bb71ea8b5f56731173bbf066d155205802d2df3d8e92

    SHA512

    4a71efaada39883b37d887ad5c7925c7867c836efb72b80a38df1b562c3f661fbc399867a04d0d1769fe5f676f137d728238d03bb08377de0c48bc173cc93896

    Download Submit

  • memory/1856-4-0x0000000002330000-0x0000000002394000-memory.dmp

    Filesize

    400KB

    Download

  • memory/1856-7-0x0000000002330000-0x0000000002394000-memory.dmp

    Filesize

    400KB

    Download

  • memory/2000-0-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

    Download

  • memory/2000-2-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

    Download

  • memory/2636-16-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

    Download

  • memory/2636-18-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

    Download

  • memory/2636-20-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

    Download

  • memory/2976-10-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

    Download