General

  • Target

    b689c5cb896835c4a6a3bbe33129dd37.bin

  • Size

    1.2MB

  • Sample

    230308-b46e9add76

  • MD5

    009f660e4ed5f4380c40e51b62be5a74

  • SHA1

    29edf5f841b09a42dac54f465697ae01de9c2d24

  • SHA256

    5cc893fb2e3faa09d682518a49142101fb1c1c75a4d00b6b0315af20d89c19ff

  • SHA512

    1c3c5ef5b0023d3e42bd3d79bd6d9c6231084ca950f1afb344cd4543bf219d8924d7d0fe2f197a4c8e79be7586801f8e4b95eba15ab9b74412bbd7ba7fee590f

  • SSDEEP

    24576:6k1kL9QDcYw2sj+ZfKIfJkCIKg6K/jO6deiwuQOT:6laDoKVKI6CIKgh/jiOT

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      62c22196418123be9af8ab9c5a0d6ceac9b966b8ac5c241fa2f59fe64f3dbf50.exe

    • Size

      2.5MB

    • MD5

      b689c5cb896835c4a6a3bbe33129dd37

    • SHA1

      bc28e1905621106085707866a88162c9a867a009

    • SHA256

      62c22196418123be9af8ab9c5a0d6ceac9b966b8ac5c241fa2f59fe64f3dbf50

    • SHA512

      95d1504adc7b88c287ee72ae975a95e7c64dc9f2eaa58b5706699a1b0131c2284ce820e79c97fa241536608f30813f21dad791df7df6b38064e3c4a5ee69073e

    • SSDEEP

      24576:xBrXtw2Irak7ZoNNosz4TztSXXo5pl9YZq2v3ret511WKe++7PXf:X9qNm4T86MejWjTv

    • 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.

    • 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

    • Adds Run key to start application

    • 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