Resubmissions

29-05-2020 12:12

200529-6smlhvcr1n 10

22-05-2020 12:35

200522-qkwqlek7jj 10

21-05-2020 14:26

200521-bm1d4zpfrj 10

General

  • Target

    totallyanonymous.com33.exe

  • Size

    706KB

  • Sample

    200529-6smlhvcr1n

  • MD5

    acb0977d781054adc4c5d3a743eac607

  • SHA1

    bc811960a7636a6856ed0218cad492fe094c4899

  • SHA256

    429507366eda040b019369ecb0b5bfbda33fc0c23ec02ce46fef83c8bf4c0b15

  • SHA512

    515448739a7450b9718991e81e8cc5b0ae5cbd27107ce4506e0263d8508f6da8dac7ed79d77e48f475ae56d3990615453c846ae450bf61154a06a84e755906fb

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.totallyanonymous.com
  • Port:
    587
  • Username:
    samuelson@totallyanonymous.com
  • Password:
    186s509N

Targets

    • Target

      totallyanonymous.com33.exe

    • Size

      706KB

    • MD5

      acb0977d781054adc4c5d3a743eac607

    • SHA1

      bc811960a7636a6856ed0218cad492fe094c4899

    • SHA256

      429507366eda040b019369ecb0b5bfbda33fc0c23ec02ce46fef83c8bf4c0b15

    • SHA512

      515448739a7450b9718991e81e8cc5b0ae5cbd27107ce4506e0263d8508f6da8dac7ed79d77e48f475ae56d3990615453c846ae450bf61154a06a84e755906fb

    • AgentTesla

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

    • AgentTesla Payload

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • 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.

    • Adds Run key to start application

    • 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

Tasks