General

  • Target

    PO#20221205INV32# pdf.exe

  • Size

    778KB

  • Sample

    221206-mtds2aaf34

  • MD5

    810b64b357a56305bf4206c3b54590b7

  • SHA1

    f2b333a4a169a25aedd12dff2f7ae02de0e8401d

  • SHA256

    5419b072a9edf702026def4104a16a22fc7ac5ad7a846d06d3c16e93d8aab540

  • SHA512

    024292eae850b424a1f4d0f73d7346108763d7024ff6330a63705fbb4bfa8259cdf1c2c7e58903805ed022f0d3acaae560f3aec0f8e2cd2a629b62ab56a34907

  • SSDEEP

    12288:swlAFmomPZefgPtqvyMo4/ikmgOa2Y1ubCNxtZkr9704V7oQPKM+PHaddNL8IPA/:LomxigQ7o4/lm+zgbku04VtPKMbvPA/

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    WEf*ZBI1

Targets

    • Target

      PO#20221205INV32# pdf.exe

    • Size

      778KB

    • MD5

      810b64b357a56305bf4206c3b54590b7

    • SHA1

      f2b333a4a169a25aedd12dff2f7ae02de0e8401d

    • SHA256

      5419b072a9edf702026def4104a16a22fc7ac5ad7a846d06d3c16e93d8aab540

    • SHA512

      024292eae850b424a1f4d0f73d7346108763d7024ff6330a63705fbb4bfa8259cdf1c2c7e58903805ed022f0d3acaae560f3aec0f8e2cd2a629b62ab56a34907

    • SSDEEP

      12288:swlAFmomPZefgPtqvyMo4/ikmgOa2Y1ubCNxtZkr9704V7oQPKM+PHaddNL8IPA/:LomxigQ7o4/lm+zgbku04VtPKMbvPA/

    • AgentTesla

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

    • 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

    • Adds Run key to start application

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks