Overview

overview

10

Static

static

SRUYM9J4.exe

windows7_x64

10

SRUYM9J4.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    24ebd06b07f1c9a22aaa2212d7a883ac692f0581f85ae3ec5617856ddb1d280a

  • Size

    1.2MB

  • Sample

    220521-bxd3escfb9

  • MD5

    5323b37953a5ba7674193cded94e37ac

  • SHA1

    668fd1c977defe8763a8de9aac5ebfb46b81562e

  • SHA256

    24ebd06b07f1c9a22aaa2212d7a883ac692f0581f85ae3ec5617856ddb1d280a

  • SHA512

    905fec205b9f71cb847addb5fc6d33279c723c20f3bc1e7f39b33bfbe7e8abb95f9214d2a2d9bc8da4ccc75a7501f7a2052e3f562554be08dfec8c24489e7cc2

Score
10/10
agentteslacollectioncoreentitykeyloggerrezer0spywarestealertrojan

Malware Config

Extracted

Credentials

  • Protocol:     smtp
  • Host:
    smtp.privateemail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    coronavirus2020

Targets

    • Target

      SRUYM9J4.EXE

    • Size

      475KB

    • MD5

      5fc1b1f7d19c60e9776c53deab129960

    • SHA1

      655038400c51c6e137206f79fb9995b432665f93

    • SHA256

      1fc23a174b140e18c483571695a84360667aa1c719451bba5c73a4ffe4da48d2

    • SHA512

      2090df70e0073b04a93407e6f00ca235425a8d1076c12f7bfb2766e7da103d23600539015f47d7075c995add45accbfc15a18415be4a99e1a43a448e23af8a6d

    Score
    10/10
    agentteslacollectioncoreentitykeyloggerrezer0spywarestealertrojan

    • AgentTesla

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

      keyloggertrojanstealerspywareagenttesla

    • CoreEntity .NET Packer

      A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

      coreentity

    • AgentTesla Payload

    • ReZer0 packer

      Detects ReZer0, a packer with multiple versions used in various campaigns.

      rezer0

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

      spywarestealer

    • Reads user/profile data of local email clients

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

      spywarestealer

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Accesses Microsoft Outlook profiles

      collection
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Exfiltration

Command and Control

Impact

Tasks