Analysis

  • max time kernel
    119s
  • max time network
    121s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/10/2024, 16:29

General

  • Target

    deb7ecc01dae80eae0b2ba51609e07b8775e6c399bc6e6f947afc022acc5aab7N.exe

  • Size

    149KB

  • MD5

    8e06393d18372a7d8d9bc81f331d9670

  • SHA1

    d55ce3f55b47e912df2bfa39ad887fc41c836fda

  • SHA256

    deb7ecc01dae80eae0b2ba51609e07b8775e6c399bc6e6f947afc022acc5aab7

  • SHA512

    83505e35d2e337708b93af916f7294bb8498bc95de14902d319b38e1d61a540e94fc4f9c1db5b5aeb140acabacd765bec75cc2885792eb9bbe45b2596dce16fa

  • SSDEEP

    1536:fli0XaKn5gYkqDqgEeEHgUyQLrdcUcsA08IzYJzKsoVXOeqD7hi/x0rTE86mwYUe:di0XaKncqY31L2WXb0E86mwYUiz

Malware Config

Signatures

  • Blocklisted process makes network request 8 IoCs
  • ASPack v2.12-2.42 1 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 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.

  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\deb7ecc01dae80eae0b2ba51609e07b8775e6c399bc6e6f947afc022acc5aab7N.exe
    "C:\Users\Admin\AppData\Local\Temp\deb7ecc01dae80eae0b2ba51609e07b8775e6c399bc6e6f947afc022acc5aab7N.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:752
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&c:\rciqlyz.exe "C:\Users\Admin\AppData\Local\Temp\deb7ecc01dae80eae0b2ba51609e07b8775e6c399bc6e6f947afc022acc5aab7N.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:3648
      • 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:1432
      • \??\c:\rciqlyz.exe
        c:\rciqlyz.exe "C:\Users\Admin\AppData\Local\Temp\deb7ecc01dae80eae0b2ba51609e07b8775e6c399bc6e6f947afc022acc5aab7N.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3204
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\xzeci\traiu.dll",AbortProc c:\rciqlyz.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)
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2320
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4092,i,10369132178352108590,11047993562598554317,262144 --variations-seed-version --mojo-platform-channel-handle=3760 /prefetch:8
    1⤵
      PID:2144

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\rciqlyz.exe

      Filesize

      150KB

      MD5

      2ccb4707891ebaeb07eacfb726a34b6f

      SHA1

      907b8c80beeb0fc272a72f446791386fcce9f0a2

      SHA256

      d3775c6029cc2394b47c8cd8c969c1a1d0448dbb82d8b3227f98101405ed2899

      SHA512

      e0ced941ab7bcece0a718ff79e4e9714af67a2c045baf4adb50791c16be40bbc26c3d09d631a921c85cdd3aeef51413d1abcc61b6e8ac823b6f411a8f229f484

    • \??\c:\xzeci\traiu.dll

      Filesize

      87KB

      MD5

      a2c2137ff7abf6be6bcae4252c394a69

      SHA1

      07b402104df563f9486c2eef975fee70f65a5145

      SHA256

      37ab4b7ee8f6b61c3854af4ed4676fd0d69f0260fb1296ad75e57aa08e1eeb03

      SHA512

      5d05ed7c55bee8f41502acaea3d41fcf4421ad641d43f0b97b4cdc8fe584983da7712c561a53b708e88391df7929914746115700ae733155418693bcec6989a9

    • memory/752-2-0x0000000000400000-0x0000000000428000-memory.dmp

      Filesize

      160KB

    • memory/752-0-0x0000000000400000-0x0000000000428000-memory.dmp

      Filesize

      160KB

    • memory/2320-14-0x0000000010000000-0x0000000010036000-memory.dmp

      Filesize

      216KB

    • memory/2320-10-0x0000000010000000-0x0000000010036000-memory.dmp

      Filesize

      216KB

    • memory/2320-11-0x0000000010000000-0x0000000010036000-memory.dmp

      Filesize

      216KB

    • memory/2320-13-0x0000000010000000-0x0000000010036000-memory.dmp

      Filesize

      216KB

    • memory/2320-12-0x0000000010000000-0x0000000010036000-memory.dmp

      Filesize

      216KB

    • memory/2320-16-0x0000000010000000-0x0000000010036000-memory.dmp

      Filesize

      216KB

    • memory/2320-17-0x0000000010000000-0x0000000010036000-memory.dmp

      Filesize

      216KB

    • memory/2320-18-0x0000000010000000-0x0000000010036000-memory.dmp

      Filesize

      216KB

    • memory/2320-19-0x0000000010000000-0x0000000010036000-memory.dmp

      Filesize

      216KB

    • memory/3204-7-0x0000000000400000-0x0000000000428000-memory.dmp

      Filesize

      160KB