General

  • Target

    RFQ_99705546,99805546_Mark Cansick.exe

  • Size

    567KB

  • Sample

    210928-kcz9labcbm

  • MD5

    724bce9be00d521c9ae6075d50434b11

  • SHA1

    a95a26499d30f48ca0b23e17b7273b1e6b92f8ac

  • SHA256

    94bc5b095176ccf49917563287006f3efd903cac47d48e251f4f4554ee87c990

  • SHA512

    d4082a9eca3f687eef2a1873368d89afcdf88461c24c6e0378e7925000562800a02dd6194fa81fb0b1150114a5451cba6b168739ae2d389efe0b82613b4d50ba

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.regalbelloit.com
  • Port:
    587
  • Username:
    user@regalbelloit.com
  • Password:
    OccWNGh9

Targets

    • Target

      RFQ_99705546,99805546_Mark Cansick.exe

    • Size

      567KB

    • MD5

      724bce9be00d521c9ae6075d50434b11

    • SHA1

      a95a26499d30f48ca0b23e17b7273b1e6b92f8ac

    • SHA256

      94bc5b095176ccf49917563287006f3efd903cac47d48e251f4f4554ee87c990

    • SHA512

      d4082a9eca3f687eef2a1873368d89afcdf88461c24c6e0378e7925000562800a02dd6194fa81fb0b1150114a5451cba6b168739ae2d389efe0b82613b4d50ba

    • AgentTesla

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

    • AgentTesla Payload

    • Looks for VirtualBox Guest Additions in registry

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • 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.

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

3
T1005

Tasks