Analysis

  • max time kernel
    131s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-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 5 IoCs
  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 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 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 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⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2976
    • 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:2632
      • 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:2784
    • C:\Users\Admin\ndsg.exe
      "C:\Users\Admin\ndsg.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1228
      • 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:1296

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    41KB

    MD5

    6a673bfc3b67ae9782cb31af2f234c68

    SHA1

    7544e89566d91e84e3cd437b9a073e5f6b56566e

    SHA256

    978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e

    SHA512

    72c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39

  • \Users\Admin\ndsg.exe

    Filesize

    3.6MB

    MD5

    c3a6abd0693f51c606a76e17f84d29a0

    SHA1

    86a54e72adf557aa38eb80bbece222f48cfaa99e

    SHA256

    99b1b22055fc3b65d41897f793b391692268773a7a316cb7afa88c7493c7bcbc

    SHA512

    27a0e3ee1fd222d66a62fcca12e04e8d603be79fe80fb05a9feb9832645af767dd9f06847854593b052d6241d6c13f423aa8b6ec779cb34e166a0d4cd485617a

  • memory/1228-36-0x0000000073F90000-0x000000007467E000-memory.dmp

    Filesize

    6.9MB

  • memory/1228-20-0x0000000000550000-0x000000000055A000-memory.dmp

    Filesize

    40KB

  • memory/1228-19-0x0000000073F90000-0x000000007467E000-memory.dmp

    Filesize

    6.9MB

  • memory/1228-17-0x0000000073F90000-0x000000007467E000-memory.dmp

    Filesize

    6.9MB

  • memory/1228-16-0x0000000001370000-0x000000000144E000-memory.dmp

    Filesize

    888KB

  • memory/1296-25-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/1296-32-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/1296-35-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/1296-34-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/1296-23-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/1296-31-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1296-27-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/1296-29-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/2976-2-0x0000000000310000-0x0000000000320000-memory.dmp

    Filesize

    64KB

  • memory/2976-3-0x0000000073F90000-0x000000007467E000-memory.dmp

    Filesize

    6.9MB

  • memory/2976-4-0x0000000073F9E000-0x0000000073F9F000-memory.dmp

    Filesize

    4KB

  • memory/2976-0-0x0000000073F9E000-0x0000000073F9F000-memory.dmp

    Filesize

    4KB

  • memory/2976-5-0x0000000073F90000-0x000000007467E000-memory.dmp

    Filesize

    6.9MB

  • memory/2976-8-0x0000000073F90000-0x000000007467E000-memory.dmp

    Filesize

    6.9MB

  • memory/2976-18-0x0000000073F90000-0x000000007467E000-memory.dmp

    Filesize

    6.9MB

  • memory/2976-1-0x0000000000CA0000-0x0000000000D7E000-memory.dmp

    Filesize

    888KB

  • memory/2976-7-0x0000000073F90000-0x000000007467E000-memory.dmp

    Filesize

    6.9MB