Overview

overview

10

Static

static

TWI-SHA 202102.exe

windows7_x64

10

TWI-SHA 202102.exe

windows10_x64

10

Analysis

  • max time kernel
    118s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    14-04-2021 19:52

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General

  • Target

    TWI-SHA 202102.exe

  • Size

    156KB

  • MD5

    d5b8e2ce449917bf395454082de6cba9

  • SHA1

    fe872c03ceef39422218003bc5a34be4faf47e55

  • SHA256

    981d483b809a8d146115d1a1feb7bb8d588e014a0f009deb528662d39f5657e4

  • SHA512

    54dc37f2345a4b70786920c80adf8c1fc72c9ab97edf95b239453c081ab221134fbbc8ae8d8fd3ce635d4b3aec8f42fbc44005930e917e10e1a72cbd5e442e48

Score
10/10
agentteslaguloaderdownloaderguloaderkeyloggerspywarestealertrojan

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    p.pisapia@simonetta-it.co
  • Password:
    HywxEue7

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

    downloaderguloader
  • AgentTesla Payload 1 IoCs
  • Guloader Payload 3 IoCs
    guloader
  • Checks QEMU agent file 2 TTPs 2 IoCs

    Checks presence of QEMU agent, possibly to detect virtualization.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

    spywarestealer
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

    spywarestealer
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\TWI-SHA 202102.exe
    "C:\Users\Admin\AppData\Local\Temp\TWI-SHA 202102.exe"
    1⤵
    • Checks QEMU agent file
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1996
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Users\Admin\AppData\Local\Temp\TWI-SHA 202102.exe"
      2⤵
        PID:600
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Users\Admin\AppData\Local\Temp\TWI-SHA 202102.exe"
        2⤵
        • Checks QEMU agent file
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:1016

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Privilege Escalation

    Defense Evasion

    Credential Access

    Credentials in Files

    3
    T1081

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    1
    T1082

    Lateral Movement

    Collection

    Data from Local System

    3
    T1005

    Exfiltration

    Command and Control

    Web Service

    1
    T1102

    Impact

    Replay Monitor

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    Downloads

    • memory/1016-65-0x000000000123CE5E-mapping.dmp
      Download
    • memory/1016-67-0x0000000000090000-0x0000000000190000-memory.dmp
      Filesize

      1024KB

      Download
    • memory/1016-69-0x0000000000400000-0x0000000000553000-memory.dmp
      Filesize

      1.3MB

      Download
    • memory/1016-70-0x0000000000400000-0x0000000000401000-memory.dmp
      Filesize

      4KB

      Download
    • memory/1016-72-0x0000000000C20000-0x0000000000C21000-memory.dmp
      Filesize

      4KB

      Download
    • memory/1016-73-0x0000000000C21000-0x0000000000C22000-memory.dmp
      Filesize

      4KB

      Download
    • memory/1996-62-0x0000000000250000-0x000000000025D000-memory.dmp
      Filesize

      52KB

      Download
    • memory/1996-64-0x00000000767B1000-0x00000000767B3000-memory.dmp
      Filesize

      8KB

      Download