Analysis

  • max time kernel
    61s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    29-03-2023 18:57

General

  • Target

    738de6017ca3733fa2d8899a9c64d53a.exe

  • Size

    1000KB

  • MD5

    738de6017ca3733fa2d8899a9c64d53a

  • SHA1

    13c0bae96872436a314b5bb11d9caa8a870bf9f4

  • SHA256

    c33b7b4e1ca47c199ebc7f0027fe163489a0b5bd872206e853ab6779362ee747

  • SHA512

    746ba252658115d37dd9701f5000ce3ac82f64c6d289fd509bc2b5fd9ba61c5d9b812cc38f0e60ff946bdfbb4babb131619777e46f79cb47aa2aec03bbf46dc3

  • SSDEEP

    24576:/Q12zVZ97cXwdfR++/CMO2bcEBYBIBTKC/hEh:/QAR379dsMlO2bcEBYBO/h

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://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 use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\738de6017ca3733fa2d8899a9c64d53a.exe
    "C:\Users\Admin\AppData\Local\Temp\738de6017ca3733fa2d8899a9c64d53a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1212
    • C:\Users\Admin\AppData\Local\Temp\738de6017ca3733fa2d8899a9c64d53a.exe
      "C:\Users\Admin\AppData\Local\Temp\738de6017ca3733fa2d8899a9c64d53a.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:296

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/296-66-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/296-64-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/296-63-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/296-89-0x00000000050A0000-0x00000000050E0000-memory.dmp

    Filesize

    256KB

  • memory/296-62-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/296-71-0x00000000050A0000-0x00000000050E0000-memory.dmp

    Filesize

    256KB

  • memory/296-70-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/296-61-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/296-68-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/296-65-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1212-59-0x00000000059C0000-0x0000000005A6A000-memory.dmp

    Filesize

    680KB

  • memory/1212-58-0x00000000005D0000-0x00000000005DC000-memory.dmp

    Filesize

    48KB

  • memory/1212-54-0x00000000008D0000-0x00000000009D0000-memory.dmp

    Filesize

    1024KB

  • memory/1212-56-0x00000000005A0000-0x00000000005C0000-memory.dmp

    Filesize

    128KB

  • memory/1212-60-0x00000000007D0000-0x0000000000802000-memory.dmp

    Filesize

    200KB

  • memory/1212-55-0x0000000004F40000-0x0000000004F80000-memory.dmp

    Filesize

    256KB

  • memory/1212-57-0x0000000004F40000-0x0000000004F80000-memory.dmp

    Filesize

    256KB