General

  • Target

    dc63886bd99eb759023d1cfa8d0e595ee3960797da8001e173b87d58ca73c485

  • Size

    328KB

  • Sample

    220521-cfwftaghan

  • MD5

    ca2dd669b1652d0002ea12d5d59d47dd

  • SHA1

    b0dd6e01e0f8d7f9bbdcfc239cd0033d32a1bab9

  • SHA256

    dc63886bd99eb759023d1cfa8d0e595ee3960797da8001e173b87d58ca73c485

  • SHA512

    fad6920418805c4653961102625df817a9a9d214714c60e76bb9b9d8f4e67172fa43fa35a058d68c25374652e41dda1db47a64f0fe031b00fdbfb6a364d631f4

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.elittacop.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    @eaSYuc8

Targets

    • Target

      Account Information.exe

    • Size

      383KB

    • MD5

      d270f61aab71c628830f0b310d827a1d

    • SHA1

      c12326e69d36377c4fc0ef566bec49c77105ac72

    • SHA256

      dbdf8847c3248a7b5df69d597b6da2163be990721ab221f5e114ac04d1b29eac

    • SHA512

      dc273ebc52bb3f116674540c89854fb32e65efa5108e2a0040034e16ac5b63c61c677c7f576426706f99a3f77f904a060c70467119264f4cdcdc76a81a5ad14f

    • 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.

    • Accesses Microsoft Outlook profiles

    • 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

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

2
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks