Analysis

  • max time kernel
    134s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-08-2024 19:14

General

  • Target

    c3a6abd0693f51c606a76e17f84d29a0_JaffaCakes118.exe

  • Size

    3.6MB

  • MD5

    c3a6abd0693f51c606a76e17f84d29a0

  • SHA1

    86a54e72adf557aa38eb80bbece222f48cfaa99e

  • SHA256

    99b1b22055fc3b65d41897f793b391692268773a7a316cb7afa88c7493c7bcbc

  • SHA512

    27a0e3ee1fd222d66a62fcca12e04e8d603be79fe80fb05a9feb9832645af767dd9f06847854593b052d6241d6c13f423aa8b6ec779cb34e166a0d4cd485617a

  • SSDEEP

    12288:MKVACoT+xvT3hUNKEfM5DV4g+Uiyb9nkSOxeQ7vA8SrokzQvnKs/4SowmmKa1gcR:nuZrgHhnHENScLvKs/4SJBxTha8MGpn

Malware Config

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • AgentTesla payload 1 IoCs
  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • Obfuscated with Agile.Net obfuscator 1 IoCs

    Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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.

  • Suspicious behavior: EnumeratesProcesses 27 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c3a6abd0693f51c606a76e17f84d29a0_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\c3a6abd0693f51c606a76e17f84d29a0_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1420
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v nsmu /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\ndsg.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4512
      • C:\Windows\SysWOW64\reg.exe
        REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v nsmu /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\ndsg.exe"
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:5092
    • C:\Users\Admin\ndsg.exe
      "C:\Users\Admin\ndsg.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2556
      • C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
        "C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
        3⤵
        • Executes dropped EXE
        • Accesses Microsoft Outlook profiles
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • outlook_office_path
        • outlook_win_path
        PID:4460

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe

    Filesize

    42KB

    MD5

    9827ff3cdf4b83f9c86354606736ca9c

    SHA1

    e73d73f42bb2a310f03eb1bcbb22be2b8eb7c723

    SHA256

    c1cf3dc8fa1c7fc00f88e07ad539979b3706ca8d69223cffd1d58bc8f521f63a

    SHA512

    8261828d55f3b5134c0aeb98311c04e20c5395d4347251746f3be0fb854f36cc7e118713cd00c9867537e6e47d5e71f2b2384fc00c67f0ae1b285b8310321579

  • C:\Users\Admin\ndsg.exe

    Filesize

    3.6MB

    MD5

    c3a6abd0693f51c606a76e17f84d29a0

    SHA1

    86a54e72adf557aa38eb80bbece222f48cfaa99e

    SHA256

    99b1b22055fc3b65d41897f793b391692268773a7a316cb7afa88c7493c7bcbc

    SHA512

    27a0e3ee1fd222d66a62fcca12e04e8d603be79fe80fb05a9feb9832645af767dd9f06847854593b052d6241d6c13f423aa8b6ec779cb34e166a0d4cd485617a

  • memory/1420-6-0x0000000005FA0000-0x0000000006544000-memory.dmp

    Filesize

    5.6MB

  • memory/1420-1-0x00000000008A0000-0x000000000097E000-memory.dmp

    Filesize

    888KB

  • memory/1420-4-0x0000000074EDE000-0x0000000074EDF000-memory.dmp

    Filesize

    4KB

  • memory/1420-5-0x0000000074ED0000-0x0000000075680000-memory.dmp

    Filesize

    7.7MB

  • memory/1420-0-0x0000000074EDE000-0x0000000074EDF000-memory.dmp

    Filesize

    4KB

  • memory/1420-7-0x0000000005AD0000-0x0000000005B62000-memory.dmp

    Filesize

    584KB

  • memory/1420-8-0x0000000074ED0000-0x0000000075680000-memory.dmp

    Filesize

    7.7MB

  • memory/1420-10-0x0000000074ED0000-0x0000000075680000-memory.dmp

    Filesize

    7.7MB

  • memory/1420-2-0x0000000074ED0000-0x0000000075680000-memory.dmp

    Filesize

    7.7MB

  • memory/1420-42-0x0000000074ED0000-0x0000000075680000-memory.dmp

    Filesize

    7.7MB

  • memory/1420-3-0x0000000002DD0000-0x0000000002DE0000-memory.dmp

    Filesize

    64KB

  • memory/2556-53-0x0000000074ED0000-0x0000000075680000-memory.dmp

    Filesize

    7.7MB

  • memory/2556-46-0x0000000074ED0000-0x0000000075680000-memory.dmp

    Filesize

    7.7MB

  • memory/2556-45-0x0000000074ED0000-0x0000000075680000-memory.dmp

    Filesize

    7.7MB

  • memory/2556-44-0x0000000074ED0000-0x0000000075680000-memory.dmp

    Filesize

    7.7MB

  • memory/2556-47-0x0000000005D60000-0x0000000005D6A000-memory.dmp

    Filesize

    40KB

  • memory/2556-43-0x0000000074ED0000-0x0000000075680000-memory.dmp

    Filesize

    7.7MB

  • memory/2556-41-0x0000000074ED0000-0x0000000075680000-memory.dmp

    Filesize

    7.7MB

  • memory/4460-56-0x00000000065D0000-0x0000000006636000-memory.dmp

    Filesize

    408KB

  • memory/4460-59-0x0000000006EA0000-0x0000000006EAA000-memory.dmp

    Filesize

    40KB

  • memory/4460-55-0x0000000005F60000-0x0000000005F78000-memory.dmp

    Filesize

    96KB

  • memory/4460-54-0x0000000005A00000-0x0000000005A9C000-memory.dmp

    Filesize

    624KB

  • memory/4460-49-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/4460-58-0x0000000006AD0000-0x0000000006B20000-memory.dmp

    Filesize

    320KB