Analysis

  • max time kernel
    139s
  • max time network
    134s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    19-10-2021 14:05

General

  • Target

    813641BENTELERdeMéxicoSAdeCV202110193434322.exe

  • Size

    385KB

  • MD5

    2f80f873ad25314e7c4d18c2f850744e

  • SHA1

    6d96cfb8544acd55876a89bfd2c892845d9249c4

  • SHA256

    01ef7277bcd8f0ac5259da0e72f1331ed250624a15e74fa44ac9c0f9dcaea096

  • SHA512

    9f895fbc860239e8683d1809b551daa571dafdb5c22bee651f5ebc0d3264eef9df879fbbb98c4bbf46f70255e3bf8d2bdb8f4f5da0190a9c04fb00812cd1b5e4

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.comansi.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    JUGuete$2021

Signatures

  • AgentTesla

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\813641BENTELERdeMéxicoSAdeCV202110193434322.exe
    "C:\Users\Admin\AppData\Local\Temp\813641BENTELERdeMéxicoSAdeCV202110193434322.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3524
    • C:\Users\Admin\AppData\Local\Temp\813641BENTELERdeMéxicoSAdeCV202110193434322.exe
      "C:\Users\Admin\AppData\Local\Temp\813641BENTELERdeMéxicoSAdeCV202110193434322.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:436

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\813641BENTELERdeMéxicoSAdeCV202110193434322.exe.log

    MD5

    0c2899d7c6746f42d5bbe088c777f94c

    SHA1

    622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

    SHA256

    5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

    SHA512

    ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

  • memory/436-126-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/436-135-0x0000000005CE0000-0x0000000005CE1000-memory.dmp

    Filesize

    4KB

  • memory/436-134-0x0000000005510000-0x0000000005511000-memory.dmp

    Filesize

    4KB

  • memory/436-133-0x0000000005050000-0x0000000005051000-memory.dmp

    Filesize

    4KB

  • memory/436-127-0x000000000043767E-mapping.dmp

  • memory/3524-120-0x0000000005800000-0x0000000005801000-memory.dmp

    Filesize

    4KB

  • memory/3524-123-0x0000000009AF0000-0x0000000009AF8000-memory.dmp

    Filesize

    32KB

  • memory/3524-124-0x0000000009BB0000-0x0000000009BB1000-memory.dmp

    Filesize

    4KB

  • memory/3524-125-0x0000000009C50000-0x0000000009CA8000-memory.dmp

    Filesize

    352KB

  • memory/3524-122-0x0000000005750000-0x0000000005C4E000-memory.dmp

    Filesize

    5.0MB

  • memory/3524-121-0x0000000005750000-0x0000000005C4E000-memory.dmp

    Filesize

    5.0MB

  • memory/3524-115-0x0000000000F50000-0x0000000000F51000-memory.dmp

    Filesize

    4KB

  • memory/3524-119-0x0000000005750000-0x0000000005C4E000-memory.dmp

    Filesize

    5.0MB

  • memory/3524-118-0x0000000005830000-0x0000000005831000-memory.dmp

    Filesize

    4KB

  • memory/3524-117-0x0000000005C50000-0x0000000005C51000-memory.dmp

    Filesize

    4KB