General

  • Target

    OOLU2115327710.xls.exe

  • Size

    2.0MB

  • Sample

    210201-y4zkg9k1k6

  • MD5

    96897c86f51f3ffb7efc497db4d82803

  • SHA1

    6dd8173b1d10f65062647c501ba85c758c43b57d

  • SHA256

    6f28dbb8b4fbf8e652d27a5831bb78cc397b8e1d4c8ec60f49013fdb31c3bf80

  • SHA512

    e66e0ca0c46625433862053c3ea7a6f50efedb677ba59355ede73a6b7bd7a1affbe1d2935e1ba5bb4567b1c9eec66b0a8b57eb3ea539562b49b0aef2deb6972e

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot1503824942:AAHdRbbLZ9UzXLTFb-pkxB0au6zGO8x5YR4/sendDocument

Targets

    • Target

      OOLU2115327710.xls.exe

    • Size

      2.0MB

    • MD5

      96897c86f51f3ffb7efc497db4d82803

    • SHA1

      6dd8173b1d10f65062647c501ba85c758c43b57d

    • SHA256

      6f28dbb8b4fbf8e652d27a5831bb78cc397b8e1d4c8ec60f49013fdb31c3bf80

    • SHA512

      e66e0ca0c46625433862053c3ea7a6f50efedb677ba59355ede73a6b7bd7a1affbe1d2935e1ba5bb4567b1c9eec66b0a8b57eb3ea539562b49b0aef2deb6972e

    • AgentTesla

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

    • Modifies Windows Defender Real-time Protection settings

    • Turns off Windows Defender SpyNet reporting

    • Windows security bypass

    • 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.

    • Windows security modification

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

5
T1112

Disabling Security Tools

4
T1089

Credential Access

Credentials in Files

3
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Command and Control

Web Service

1
T1102

Tasks