Analysis

  • max time kernel
    132s
  • max time network
    111s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    01-02-2021 07:38

General

  • Target

    HTG-874663.exe

  • Size

    839KB

  • MD5

    d9eb3af4ba1c40442d03c2e52c8294f9

  • SHA1

    dd42e5fd273166d03c4ba81f8a7c0dafe7bf14b5

  • SHA256

    b663f00658b56580c0eb28ef91864d9b672111bd20953a1ee81fcce3e3b2d5f6

  • SHA512

    e62a5471781e0ddd256edda8abcbdc39876a375043b5eebe3e1f4f737ac0f9893409bb669b69cdc06edfa104dbf3ad96de65080d46ee55a7c9927b913d189ed0

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.kpce-co.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    l9#Qg$:nwmC3

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\HTG-874663.exe
    "C:\Users\Admin\AppData\Local\Temp\HTG-874663.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:728
    • C:\Users\Admin\AppData\Local\Temp\HTG-874663.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3568

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\HTG-874663.exe.log

    MD5

    0c2899d7c6746f42d5bbe088c777f94c

    SHA1

    622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

    SHA256

    5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

    SHA512

    ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

  • memory/728-7-0x0000000005130000-0x0000000005131000-memory.dmp

    Filesize

    4KB

  • memory/728-3-0x0000000000790000-0x0000000000791000-memory.dmp

    Filesize

    4KB

  • memory/728-6-0x0000000005090000-0x0000000005091000-memory.dmp

    Filesize

    4KB

  • memory/728-2-0x00000000730E0000-0x00000000737CE000-memory.dmp

    Filesize

    6.9MB

  • memory/728-11-0x00000000088E0000-0x00000000089B0000-memory.dmp

    Filesize

    832KB

  • memory/728-9-0x00000000053C0000-0x00000000053C4000-memory.dmp

    Filesize

    16KB

  • memory/728-5-0x0000000005670000-0x0000000005671000-memory.dmp

    Filesize

    4KB

  • memory/728-10-0x0000000008740000-0x0000000008741000-memory.dmp

    Filesize

    4KB

  • memory/728-8-0x00000000052E0000-0x00000000052E1000-memory.dmp

    Filesize

    4KB

  • memory/3568-12-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/3568-15-0x00000000730E0000-0x00000000737CE000-memory.dmp

    Filesize

    6.9MB

  • memory/3568-13-0x000000000043747E-mapping.dmp

  • memory/3568-20-0x0000000005620000-0x0000000005621000-memory.dmp

    Filesize

    4KB

  • memory/3568-21-0x00000000062A0000-0x00000000062A1000-memory.dmp

    Filesize

    4KB

  • memory/3568-22-0x0000000006330000-0x0000000006331000-memory.dmp

    Filesize

    4KB

  • memory/3568-25-0x0000000005621000-0x0000000005622000-memory.dmp

    Filesize

    4KB