General

  • Target

    Revised Inv with new bank details.ace

  • Size

    486KB

  • Sample

    231012-p872jada96

  • MD5

    c8e5e9dacdaaeeff038fa949136f14db

  • SHA1

    a681b08e051ac249b35d7a2c7b46048e6e50daeb

  • SHA256

    91dc77569ecffe02d7b76edc7d57457541eed136816a56569141bc4f07439aa8

  • SHA512

    7b2c400edb66f04a36a120e56e160ceb91c6d22085ae7c1bd71ae03a9b138f421957491cd09e8fab4a30df4c56c1a495a297fd7b8bf6544e7810f6ae14ebb71e

  • SSDEEP

    6144:qg42zQLBykTiAmoOQBBD/uOepgtwbDqvBM7nVmRrE1jlDN0cRSibg0kwYkYnH+xk:XzQL1lOiLXztcDqAVmkp6crg0zs2QX1

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      Revised Inv with new bank details.exe

    • Size

      658KB

    • MD5

      bf47a7f7a4bca87822a426c3e0d97db3

    • SHA1

      6ad4e41047050dd6d761c4d719f4275292caa050

    • SHA256

      2adced1fcc20537c8781ffc85614ea22378125595dbf77dd7403dde711048c89

    • SHA512

      23dee2080a164495713bb9ef4ee7a0ea5ab2f500eef8523c218770d5d3b26d5a43ddea655536d6d024da26e518fd10a30cc291cb0d663dcd61a543607f367732

    • SSDEEP

      12288:cQbqNMnUTAxxJq/O7XSdFLSYAJTumnsRUqALhxuEl5zhtxxvpVRnOJTEB:c7NLYxJGOT6FLSYxqcshxuEl5zhtxxvd

    • AgentTesla

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

    • Looks for VirtualBox Guest Additions in registry

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • 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

    • Looks up external IP address via web service

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

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks