General

  • Target

    TWI-SHA 202102.rar

  • Size

    52KB

  • Sample

    210414-jxsj2nnz6s

  • MD5

    2d4a22b1391e4cd7150280bbbe1bdf7e

  • SHA1

    07bfcdcc7ec434fe45696626920d30ff9666f019

  • SHA256

    1cd53c7db5f180ba563a800ebfd7dfd44445dc21a3dcd89ed0ae60ea52ea184f

  • SHA512

    14b63173b21767554829a5feb141e0904afaa33065d1ad4c9e125afc8e6e5ae1ede5b9ddea42462c82512d2cdad0d886963826c292c60065f5b78a33a49bb82d

Malware Config

Extracted

Family

agenttesla

Credentials

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

Targets

    • Target

      TWI-SHA 202102.exe

    • Size

      156KB

    • MD5

      d5b8e2ce449917bf395454082de6cba9

    • SHA1

      fe872c03ceef39422218003bc5a34be4faf47e55

    • SHA256

      981d483b809a8d146115d1a1feb7bb8d588e014a0f009deb528662d39f5657e4

    • SHA512

      54dc37f2345a4b70786920c80adf8c1fc72c9ab97edf95b239453c081ab221134fbbc8ae8d8fd3ce635d4b3aec8f42fbc44005930e917e10e1a72cbd5e442e48

    • AgentTesla

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

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

    • AgentTesla Payload

    • Guloader Payload

    • Checks QEMU agent file

      Checks presence of QEMU agent, possibly to detect virtualization.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

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

    • Reads user/profile data of web browsers

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

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Command and Control

Web Service

1
T1102

Tasks