Analysis

  • max time kernel
    143s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/07/2023, 13:32

General

  • Target

    Arrival Notice pdf.exe

  • Size

    622KB

  • MD5

    a864ca53a608186b1490ba903c1d2815

  • SHA1

    d54652d5c400d0111f80176f4083fcbab2e3d7c3

  • SHA256

    43ad88d4b9b62ac29d1872243f482198d5771dadf38903b63ba51bc344a871a5

  • SHA512

    9982e107ae6a603ad57600f4ae6343ecbd17dc633e99cb6252741c80f7ece68216cdbade23c21a7773c5ef3e698abbde19c0ce15442965a38b7b2ccbb752a8e8

  • SSDEEP

    12288:gqB2gfkl5w8ejw7CbwP1G0efdY3f5APcpD8/8L5zr7ZySBLYd:p2gfkl5w8Y6lo23x0cpYUlzXZySBEd

Malware Config

Signatures

  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Lokibot

    Lokibot is a Password and CryptoCoin Wallet Stealer.

  • Checks QEMU agent file 2 TTPs 2 IoCs

    Checks presence of QEMU agent, possibly to detect virtualization.

  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Drops file in System32 directory 1 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Arrival Notice pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Arrival Notice pdf.exe"
    1⤵
    • Checks QEMU agent file
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Drops file in Program Files directory
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1660
    • C:\Users\Admin\AppData\Local\Temp\Arrival Notice pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\Arrival Notice pdf.exe"
      2⤵
      • Checks QEMU agent file
      • Accesses Microsoft Outlook profiles
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4328
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k netsvcs -p
    1⤵
    • Drops file in System32 directory
    PID:4640

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\nsnCCE6.tmp\System.dll

          Filesize

          11KB

          MD5

          a4dd044bcd94e9b3370ccf095b31f896

          SHA1

          17c78201323ab2095bc53184aa8267c9187d5173

          SHA256

          2e226715419a5882e2e14278940ee8ef0aa648a3ef7af5b3dc252674111962bc

          SHA512

          87335a43b9ca13e1300c7c23e702e87c669e2bcf4f6065f0c684fc53165e9c1f091cc4d79a3eca3910f0518d3b647120ac0be1a68eaade2e75eaa64adfc92c5a

        • C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-1722984668-1829624581-3022101259-1000\0f5007522459c86e95ffcc62f32308f1_a0bc95ba-226b-43bc-9413-1a52b12558b5

          Filesize

          46B

          MD5

          d898504a722bff1524134c6ab6a5eaa5

          SHA1

          e0fdc90c2ca2a0219c99d2758e68c18875a3e11e

          SHA256

          878f32f76b159494f5a39f9321616c6068cdb82e88df89bcc739bbc1ea78e1f9

          SHA512

          26a4398bffb0c0aef9a6ec53cd3367a2d0abf2f70097f711bbbf1e9e32fd9f1a72121691bb6a39eeb55d596edd527934e541b4defb3b1426b1d1a6429804dc61

        • C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-1722984668-1829624581-3022101259-1000\0f5007522459c86e95ffcc62f32308f1_a0bc95ba-226b-43bc-9413-1a52b12558b5

          Filesize

          46B

          MD5

          c07225d4e7d01d31042965f048728a0a

          SHA1

          69d70b340fd9f44c89adb9a2278df84faa9906b7

          SHA256

          8c136c7ae08020ad16fd1928e36ad335ddef8b85906d66b712fff049aa57dc9a

          SHA512

          23d3cea738e1abf561320847c39dadc8b5794d7bd8761b0457956f827a17ad2556118b909a3e6929db79980ccf156a6f58ac823cf88329e62417d2807b34b64b

        • memory/1660-146-0x0000000004CA0000-0x0000000007A8C000-memory.dmp

          Filesize

          45.9MB

        • memory/1660-147-0x0000000004CA0000-0x0000000007A8C000-memory.dmp

          Filesize

          45.9MB

        • memory/4328-148-0x0000000000400000-0x0000000001654000-memory.dmp

          Filesize

          18.3MB

        • memory/4328-149-0x0000000001660000-0x000000000444C000-memory.dmp

          Filesize

          45.9MB

        • memory/4328-150-0x0000000001660000-0x000000000444C000-memory.dmp

          Filesize

          45.9MB

        • memory/4328-154-0x0000000001660000-0x000000000444C000-memory.dmp

          Filesize

          45.9MB

        • memory/4328-155-0x0000000001660000-0x000000000444C000-memory.dmp

          Filesize

          45.9MB