Analysis

  • max time kernel
    90s
  • max time network
    62s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    08-07-2020 07:10

General

  • Target

    PO_CONSUMMABLES_8899_1129_9928_9090.exe

  • Size

    819KB

  • MD5

    b0c215630c1ed900a1d2e6aedd97cbbb

  • SHA1

    c3526cf03f2df8cdccc1707297077cfbec3e4bbc

  • SHA256

    77cae929decac2069a213256e01ab18f1ccae29a3fee73fb501991b419507e42

  • SHA512

    944137cb5933963e45acb14b907219c6c542ec55129aa50924ed7e58c097a1c4c7957cc6537080e438a1827990332410baf5cc0bbe0d58bbd9b3a954d532ec1e

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.knmbz.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    kJubHQs8

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 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 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO_CONSUMMABLES_8899_1129_9928_9090.exe
    "C:\Users\Admin\AppData\Local\Temp\PO_CONSUMMABLES_8899_1129_9928_9090.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:616
    • C:\Users\Admin\AppData\Local\Temp\PO_CONSUMMABLES_8899_1129_9928_9090.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1596

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

  • memory/616-1-0x0000000000000000-0x0000000000000000-disk.dmp
  • memory/1596-2-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1596-3-0x0000000000446A0E-mapping.dmp
  • memory/1596-4-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1596-5-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB