Analysis

  • max time kernel
    125s
  • max time network
    125s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    21-10-2021 13:38

General

  • Target

    8.exe

  • Size

    426KB

  • MD5

    6e076b569560bf2e25726d56639bbbfe

  • SHA1

    73babceee474d401f5f0c36bf71cbb1da7374e7b

  • SHA256

    1f641c813dbf32c33e6e6a2b5f50851b967070b9e84cd288f818c6282c8671b2

  • SHA512

    0dba29e66219785a9565fc0ef88ec8172f372060a6fa374498aee093e74b4495161ab8f68861004661456457042a11f4d2951db8e28e44bae9f060fe7abf579f

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.daproviaggi.it
  • Port:
    587
  • Username:
    anna@daproviaggi.it
  • Password:
    vacanz.E43

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8.exe
    "C:\Users\Admin\AppData\Local\Temp\8.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3540
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rYosmRSBPa" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1FF7.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3132
    • C:\Users\Admin\AppData\Local\Temp\8.exe
      "C:\Users\Admin\AppData\Local\Temp\8.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:3168

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Credential Access

Credentials in Files

3
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\8.exe.log
    MD5

    0c2899d7c6746f42d5bbe088c777f94c

    SHA1

    622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

    SHA256

    5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

    SHA512

    ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

  • memory/3132-124-0x0000000000000000-mapping.dmp
  • memory/3168-134-0x0000000005FA0000-0x0000000005FA1000-memory.dmp
    Filesize

    4KB

  • memory/3168-133-0x0000000005410000-0x0000000005411000-memory.dmp
    Filesize

    4KB

  • memory/3168-132-0x0000000005240000-0x000000000573E000-memory.dmp
    Filesize

    5.0MB

  • memory/3168-126-0x000000000043764E-mapping.dmp
  • memory/3168-125-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/3540-119-0x0000000005110000-0x000000000560E000-memory.dmp
    Filesize

    5.0MB

  • memory/3540-123-0x0000000005F50000-0x0000000005FA8000-memory.dmp
    Filesize

    352KB

  • memory/3540-122-0x0000000005EB0000-0x0000000005EB1000-memory.dmp
    Filesize

    4KB

  • memory/3540-121-0x00000000052D0000-0x00000000052D7000-memory.dmp
    Filesize

    28KB

  • memory/3540-120-0x0000000005130000-0x0000000005131000-memory.dmp
    Filesize

    4KB

  • memory/3540-115-0x0000000000880000-0x0000000000881000-memory.dmp
    Filesize

    4KB

  • memory/3540-118-0x00000000051B0000-0x00000000051B1000-memory.dmp
    Filesize

    4KB

  • memory/3540-117-0x0000000005610000-0x0000000005611000-memory.dmp
    Filesize

    4KB