General

  • Target

    7afa4b711714c420df3cf3f66e44ba9d0c11124f6e2b22b68ed3d6a0a03e4488

  • Size

    282KB

  • Sample

    220521-aksvdaadb9

  • MD5

    d5b98fbaeddbca0e467aa4e771d55a44

  • SHA1

    75e7b4bca9cbfaf7e571414f17cc235cbcc115df

  • SHA256

    7afa4b711714c420df3cf3f66e44ba9d0c11124f6e2b22b68ed3d6a0a03e4488

  • SHA512

    b19938e8aac5f613926c192b6826cd0cc40c6259d52aa9f6fac74f820cf0507e2b987de4806fde0bb8606cef5b9ede4fd749dbe122b32860585b980cf42ad528

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    blockmoney32

Targets

    • Target

      AWB#5421457894.exe

    • Size

      678KB

    • MD5

      9e50434dd1d10773a9d2acc0ca50284e

    • SHA1

      da4c89a1120051755459cbb20a9f5b671e9b388d

    • SHA256

      2e50f8b1d260cd858d97aff46f8c157b940d6db17673ec99f9304ac963f32473

    • SHA512

      31b519166553d6009251c9b2920bc95563061abefac834523afc08912cdbacdd7eb06980bdf607120586cd4170dfcf82a1e9da39e74c7f653047e6192733fcf3

    • AgentTesla

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

    • AgentTesla Payload

    • Executes dropped EXE

    • Loads dropped DLL

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    • 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

2
T1081

Collection

Data from Local System

2
T1005

Email Collection

1
T1114

Tasks