Analysis

  • max time kernel
    123s
  • max time network
    114s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    14-01-2021 07:04

General

  • Target

    30714756.PDF.exe

  • Size

    851KB

  • MD5

    f63292fb2b058227bade273192eeaa01

  • SHA1

    947429ac7fc21804939af655bf4b9c008eadba49

  • SHA256

    5b3267deb2e1a7d15a607c191a58af5da2ed5de23655ceeb4b0280fe6f0d5a7a

  • SHA512

    4b6e1b34422b9bc310a04723e4a1b761a3056fe7a893156d3f18d61d96eefa096cee3b5b78d19b231c54d91767f737ec2cf9f317ee6a99ea1dd4f24ed7cd6973

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.vivaldi.net
  • Port:
    587
  • Username:
    chynaman@vivaldi.net
  • Password:
    pmoneyboy994

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.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\30714756.PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\30714756.PDF.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3992
    • C:\Users\Admin\AppData\Local\Temp\30714756.PDF.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1268

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\30714756.PDF.exe.log
    MD5

    0c2899d7c6746f42d5bbe088c777f94c

    SHA1

    622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

    SHA256

    5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

    SHA512

    ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

  • memory/1268-11-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/1268-20-0x0000000005BC0000-0x0000000005BC1000-memory.dmp
    Filesize

    4KB

  • memory/1268-19-0x0000000005070000-0x0000000005071000-memory.dmp
    Filesize

    4KB

  • memory/1268-14-0x00000000738E0000-0x0000000073FCE000-memory.dmp
    Filesize

    6.9MB

  • memory/1268-12-0x00000000004373EE-mapping.dmp
  • memory/3992-6-0x0000000005590000-0x0000000005591000-memory.dmp
    Filesize

    4KB

  • memory/3992-10-0x0000000007B20000-0x0000000007B21000-memory.dmp
    Filesize

    4KB

  • memory/3992-9-0x00000000079E0000-0x0000000007A7D000-memory.dmp
    Filesize

    628KB

  • memory/3992-8-0x00000000056A0000-0x00000000056AE000-memory.dmp
    Filesize

    56KB

  • memory/3992-7-0x0000000003190000-0x0000000003191000-memory.dmp
    Filesize

    4KB

  • memory/3992-2-0x00000000738E0000-0x0000000073FCE000-memory.dmp
    Filesize

    6.9MB

  • memory/3992-5-0x0000000005BF0000-0x0000000005BF1000-memory.dmp
    Filesize

    4KB

  • memory/3992-3-0x0000000000BE0000-0x0000000000BE1000-memory.dmp
    Filesize

    4KB