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Analysis

  • max time kernel
    144s
  • max time network
    152s
  • platform
    windows10-1703_x64
  • resource
    win10-20230915-en
  • resource tags

    arch:x64arch:x86image:win10-20230915-enlocale:en-usos:windows10-1703-x64system
  • submitted
    22/09/2023, 09:19

General

  • Target

    98c140b482c040e7e9bfb991d7b817ff64bb416f9c7d1089246382b04a0276df.exe

  • Size

    657KB

  • MD5

    dfc0f01311be209f96d21f03d357c3b8

  • SHA1

    39246a932c5c5ace5a2af894838a104a25bba96d

  • SHA256

    98c140b482c040e7e9bfb991d7b817ff64bb416f9c7d1089246382b04a0276df

  • SHA512

    3e554ca4055e2f09718d2f730536f125762c61063bf0b97a74b065508d9299954f8fa8adce8b9f21d342ab54c255732815ba5e966d0feb2f673abdef78099676

  • SSDEEP

    12288:ntHdZerD6YRFz1e0lcZiSI9GEp552pASTboSn91kHkXQRZpD1q0:lUDDDg2ME9PfcpASTM++G2pD1

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://valvulasthermovalve.cl
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    LILKOOLL14!!

Signatures

  • AgentTesla

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

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\98c140b482c040e7e9bfb991d7b817ff64bb416f9c7d1089246382b04a0276df.exe
    "C:\Users\Admin\AppData\Local\Temp\98c140b482c040e7e9bfb991d7b817ff64bb416f9c7d1089246382b04a0276df.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4680
    • C:\Users\Admin\AppData\Local\Temp\98c140b482c040e7e9bfb991d7b817ff64bb416f9c7d1089246382b04a0276df.exe
      "C:\Users\Admin\AppData\Local\Temp\98c140b482c040e7e9bfb991d7b817ff64bb416f9c7d1089246382b04a0276df.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2944

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\98c140b482c040e7e9bfb991d7b817ff64bb416f9c7d1089246382b04a0276df.exe.log

    Filesize

    1KB

    MD5

    0c2899d7c6746f42d5bbe088c777f94c

    SHA1

    622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

    SHA256

    5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

    SHA512

    ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

  • memory/2944-13-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2944-22-0x0000000005840000-0x0000000005850000-memory.dmp

    Filesize

    64KB

  • memory/2944-21-0x00000000734F0000-0x0000000073BDE000-memory.dmp

    Filesize

    6.9MB

  • memory/2944-20-0x0000000006C60000-0x0000000006CB0000-memory.dmp

    Filesize

    320KB

  • memory/2944-17-0x00000000734F0000-0x0000000073BDE000-memory.dmp

    Filesize

    6.9MB

  • memory/2944-19-0x0000000005840000-0x0000000005850000-memory.dmp

    Filesize

    64KB

  • memory/2944-18-0x00000000057D0000-0x0000000005836000-memory.dmp

    Filesize

    408KB

  • memory/4680-10-0x0000000004DA0000-0x0000000004DAC000-memory.dmp

    Filesize

    48KB

  • memory/4680-16-0x00000000734F0000-0x0000000073BDE000-memory.dmp

    Filesize

    6.9MB

  • memory/4680-0-0x00000000000D0000-0x000000000017A000-memory.dmp

    Filesize

    680KB

  • memory/4680-11-0x0000000009320000-0x000000000939C000-memory.dmp

    Filesize

    496KB

  • memory/4680-12-0x000000000BC00000-0x000000000BC9C000-memory.dmp

    Filesize

    624KB

  • memory/4680-8-0x0000000004C60000-0x0000000004C70000-memory.dmp

    Filesize

    64KB

  • memory/4680-7-0x00000000734F0000-0x0000000073BDE000-memory.dmp

    Filesize

    6.9MB

  • memory/4680-9-0x0000000004D90000-0x0000000004D9A000-memory.dmp

    Filesize

    40KB

  • memory/4680-6-0x0000000004D70000-0x0000000004D8A000-memory.dmp

    Filesize

    104KB

  • memory/4680-5-0x00000000049D0000-0x00000000049DA000-memory.dmp

    Filesize

    40KB

  • memory/4680-4-0x0000000004C60000-0x0000000004C70000-memory.dmp

    Filesize

    64KB

  • memory/4680-3-0x0000000004A30000-0x0000000004AC2000-memory.dmp

    Filesize

    584KB

  • memory/4680-2-0x0000000004E90000-0x000000000538E000-memory.dmp

    Filesize

    5.0MB

  • memory/4680-1-0x00000000734F0000-0x0000000073BDE000-memory.dmp

    Filesize

    6.9MB