Windows 7 deprecation

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General

  • Target

    PaymentSlip25042023PDF.doc.bin

  • Size

    22KB

  • Sample

    230505-zp46msge8z

  • MD5

    86cbbdd963c01e0696de26a88db7c8c4

  • SHA1

    bddabfb056b9caac2f675fa04f6fba3df29d29f9

  • SHA256

    e9535d566e0bf21ff77514b2709f29e24abe35538ce31f4cdc0f1baee88832fa

  • SHA512

    7fc868e7bad14c7e3d292ee8c5a14cd016831d130f4f49aa5a2a58e0b9c161714cf612bba6c6f06844bee2f407724209153c7034b53d105c91b603855ef798dd

  • SSDEEP

    384:eL0AbZSKfdTPWaHiP5gIKnxa6gtpiKegdtqA9NKFiz0jl9ULbn8EotiWkGVJoqu+:ewAbZS6rhiKIKk6iibgbTHKFiz0LULba

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5350270151:AAHiqzi7CQnEGEk3Xi-PyJX8ov0x6B-8S1I/

Targets

    • Target

      PaymentSlip25042023PDF.doc.bin

    • Size

      22KB

    • MD5

      86cbbdd963c01e0696de26a88db7c8c4

    • SHA1

      bddabfb056b9caac2f675fa04f6fba3df29d29f9

    • SHA256

      e9535d566e0bf21ff77514b2709f29e24abe35538ce31f4cdc0f1baee88832fa

    • SHA512

      7fc868e7bad14c7e3d292ee8c5a14cd016831d130f4f49aa5a2a58e0b9c161714cf612bba6c6f06844bee2f407724209153c7034b53d105c91b603855ef798dd

    • SSDEEP

      384:eL0AbZSKfdTPWaHiP5gIKnxa6gtpiKegdtqA9NKFiz0jl9ULbn8EotiWkGVJoqu+:ewAbZS6rhiKIKk6iibgbTHKFiz0LULba

    • 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.

    • Accesses Microsoft Outlook profiles

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks