General

  • Target

    9a73ca0ac130eedbcd7e9ff4d9a07bef45722fe49ef873da039ab00ad126e55e

  • Size

    559KB

  • Sample

    220521-m4z41sdad7

  • MD5

    1ad8adaec9a7fad7dc4fe9d4b3e90420

  • SHA1

    92924a3fb995815d3e9629cb81cc171ee319419b

  • SHA256

    9a73ca0ac130eedbcd7e9ff4d9a07bef45722fe49ef873da039ab00ad126e55e

  • SHA512

    4cbb0806e84d3b145b3f6510cfa514ba9faa72207b2170b6e28257b3212d404f973ebc96d4c47fb937e77a774e42145a703eb43bd555d539c33f333116a12e67

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.samco-sg.com
  • Port:
    587
  • Username:
    admin@samco-sg.com
  • Password:
    @NNiiSl4

Targets

    • Target

      Authorized Docsx-1011279_pdf.exe

    • Size

      958KB

    • MD5

      2859536d947d374208b75ab68c3a89ec

    • SHA1

      bc79eaecfe58b2f0c0e65b96ac8df676bba914a3

    • SHA256

      5d8edb52dabb7850b75a9bf3f899756425401e26b221fba7117c9627ae844590

    • SHA512

      ae128ad0d5c95e23bf7fb2542d87a4b1248ada569f8e84a77bf4fe5d1f3cd0cd873c9a831a52dc2da2c4f65d6eb7c983f6accb5934779f79e2179d1ad795e85a

    • AgentTesla

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

    • AgentTesla Payload

    • 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

    • 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