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Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    15/12/2024, 01:01

General

  • Target

    90ed9d25dc93f73d574a27e7b7e4806107eafc2018038840521cf44ec5f38245.exe

  • Size

    861KB

  • MD5

    4f317fb6f4fc58e20f80bb8054767557

  • SHA1

    b7d39f72903941f59b568476d3e548b3060b9af6

  • SHA256

    90ed9d25dc93f73d574a27e7b7e4806107eafc2018038840521cf44ec5f38245

  • SHA512

    5210fc381b002ec82e86ef83784d94ca5c895a3eb1c9fd72751b45f142ac950a9a7127b53476ee0e800d7973bea2090f6f1a204ae04396aaa7ab620b89434f64

  • SSDEEP

    6144:MKFylHuqIDU7/5mgS7q0XQxvV2B/TsSZ7ADmQK5DLlHE:MK8IDC/5mi5KLsS2KhR

Malware Config

Signatures

  • AgentTesla

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

  • Agenttesla family
  • AgentTesla payload 6 IoCs
  • System Binary Proxy Execution: InstallUtil 1 TTPs 2 IoCs

    Abuse InstallUtil to proxy execution of malicious code.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 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 3 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\90ed9d25dc93f73d574a27e7b7e4806107eafc2018038840521cf44ec5f38245.exe
    "C:\Users\Admin\AppData\Local\Temp\90ed9d25dc93f73d574a27e7b7e4806107eafc2018038840521cf44ec5f38245.exe"
    1⤵
    • System Binary Proxy Execution: InstallUtil
    • 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:2356
    • C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
      "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
      2⤵
      • Executes dropped EXE
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2816

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    40KB

    MD5

    91c9ae9c9a17a9db5e08b120e668c74c

    SHA1

    50770954c1ceb0bb6f1d5d3f2de2a0a065773723

    SHA256

    e56a7e5d3ab9675555e2897fc3faa2dd9265008a4967a7d54030ab8184d2d38f

    SHA512

    ca504af192e3318359d4742a2ef26ae1b5d040a4f9942782e02549a310158d5d5dbf919b4c748c31ee609d2046bd23ee0c22712891c86ae4a1e3a58c6e67647e

  • memory/2356-0-0x00000000749BE000-0x00000000749BF000-memory.dmp

    Filesize

    4KB

  • memory/2356-1-0x0000000000B30000-0x0000000000C0E000-memory.dmp

    Filesize

    888KB

  • memory/2356-2-0x00000000749B0000-0x000000007509E000-memory.dmp

    Filesize

    6.9MB

  • memory/2356-3-0x0000000000740000-0x0000000000750000-memory.dmp

    Filesize

    64KB

  • memory/2356-4-0x00000000749B0000-0x000000007509E000-memory.dmp

    Filesize

    6.9MB

  • memory/2356-6-0x00000000749B0000-0x000000007509E000-memory.dmp

    Filesize

    6.9MB

  • memory/2356-7-0x00000000749B0000-0x000000007509E000-memory.dmp

    Filesize

    6.9MB

  • memory/2356-8-0x0000000000A30000-0x0000000000A3A000-memory.dmp

    Filesize

    40KB

  • memory/2356-33-0x00000000749B0000-0x000000007509E000-memory.dmp

    Filesize

    6.9MB

  • memory/2816-17-0x0000000000090000-0x00000000000F6000-memory.dmp

    Filesize

    408KB

  • memory/2816-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2816-15-0x0000000000090000-0x00000000000F6000-memory.dmp

    Filesize

    408KB

  • memory/2816-14-0x0000000000090000-0x00000000000F6000-memory.dmp

    Filesize

    408KB

  • memory/2816-30-0x0000000000090000-0x00000000000F6000-memory.dmp

    Filesize

    408KB

  • memory/2816-27-0x0000000000090000-0x00000000000F6000-memory.dmp

    Filesize

    408KB

  • memory/2816-23-0x0000000000090000-0x00000000000F6000-memory.dmp

    Filesize

    408KB

  • memory/2816-22-0x0000000000090000-0x00000000000F6000-memory.dmp

    Filesize

    408KB

  • memory/2816-32-0x00000000749B0000-0x000000007509E000-memory.dmp

    Filesize

    6.9MB

  • memory/2816-34-0x00000000749B0000-0x000000007509E000-memory.dmp

    Filesize

    6.9MB

  • memory/2816-12-0x0000000000090000-0x00000000000F6000-memory.dmp

    Filesize

    408KB

  • memory/2816-35-0x00000000749B0000-0x000000007509E000-memory.dmp

    Filesize

    6.9MB