General

  • Target

    Bdf.exe

  • Size

    691KB

  • Sample

    220522-fzqw8afee3

  • MD5

    4356ec13f3ecf498927e9201c486efe8

  • SHA1

    629d568f17687fba89d7d9af41e2f1669bdbc828

  • SHA256

    839fe50643326105b4a44193db365e347eebdb98fd9cbdb22b26fb64589605a7

  • SHA512

    2906140ada60b565c990122bc3e82252440a30a3940318a4c06340a860a14833b18a8e9e744cc0a693213cb838e73d5c097858a7eb059eebe0656634a9624d16

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5160342877:AAG7aI_cOY3UzpErIEUdfVUJMJszvGYLIiI/sendDocument

Targets

    • Target

      Bdf.exe

    • Size

      691KB

    • MD5

      4356ec13f3ecf498927e9201c486efe8

    • SHA1

      629d568f17687fba89d7d9af41e2f1669bdbc828

    • SHA256

      839fe50643326105b4a44193db365e347eebdb98fd9cbdb22b26fb64589605a7

    • SHA512

      2906140ada60b565c990122bc3e82252440a30a3940318a4c06340a860a14833b18a8e9e744cc0a693213cb838e73d5c097858a7eb059eebe0656634a9624d16

    • AgentTesla

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

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks