General

  • Target

    SOA # 87594094.xlsx

  • Size

    224KB

  • Sample

    220521-mtdg9scdf3

  • MD5

    00d8cbaa1a4eb56066dae9e213bc9503

  • SHA1

    01aa1fb71e86714f6cba7f17b5e80ad707583e66

  • SHA256

    f8fe8c2f2bacb1bd5b18725526e4212a035085b22b7170c0a19f4fd40fd6fa10

  • SHA512

    483cb412524d2f8032a19060f59e321c8c2e7a9bb86a3f081a633a4315e06ff179ddf9691cce1fcb5bfa4f5fee407616e7ca5c03dc51677d8bd900129d0aeab4

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5368056296:AAHgHHTnRAZx9eL5AZ1arY8hwWaEJUMdR18/sendDocument

Targets

    • Target

      SOA # 87594094.xlsx

    • Size

      224KB

    • MD5

      00d8cbaa1a4eb56066dae9e213bc9503

    • SHA1

      01aa1fb71e86714f6cba7f17b5e80ad707583e66

    • SHA256

      f8fe8c2f2bacb1bd5b18725526e4212a035085b22b7170c0a19f4fd40fd6fa10

    • SHA512

      483cb412524d2f8032a19060f59e321c8c2e7a9bb86a3f081a633a4315e06ff179ddf9691cce1fcb5bfa4f5fee407616e7ca5c03dc51677d8bd900129d0aeab4

    • AgentTesla

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

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • 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.

    • Uses the VBS compiler for execution

    • Accesses Microsoft Outlook profiles

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scripting

1
T1064

Exploitation for Client Execution

1
T1203

Defense Evasion

Scripting

1
T1064

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks