General

  • Target

    0007334.xlsx (~2.2 MB).exe

  • Size

    778KB

  • Sample

    210128-9ztazh69r6

  • MD5

    284989f47cbc30eaa179357f03335df7

  • SHA1

    5fe3595529dfae1e3b908fe235bb232ac84c0629

  • SHA256

    27835347fbef2d9391f2c463b367b56778946b2b64cd504961155f288f101037

  • SHA512

    cfb51f200707a45c78686fa0f3cb7666b2df1b3093975a6b9433709ff2881b5957a5d97b04d21357997b1859cae8d9f0efebe6ed63a380b2878f2fb734172b4d

Malware Config

Targets

    • Target

      0007334.xlsx (~2.2 MB).exe

    • Size

      778KB

    • MD5

      284989f47cbc30eaa179357f03335df7

    • SHA1

      5fe3595529dfae1e3b908fe235bb232ac84c0629

    • SHA256

      27835347fbef2d9391f2c463b367b56778946b2b64cd504961155f288f101037

    • SHA512

      cfb51f200707a45c78686fa0f3cb7666b2df1b3093975a6b9433709ff2881b5957a5d97b04d21357997b1859cae8d9f0efebe6ed63a380b2878f2fb734172b4d

    • AgentTesla

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

    • AgentTesla Payload

    • Executes dropped EXE

    • Loads dropped DLL

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Tasks