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Resubmissions

06/07/2023, 11:55

230706-n3f57abh7s 10

06/07/2023, 11:51

230706-n1ffwaae69 1

General

  • Target

    11114727959.zip

  • Size

    1.0MB

  • Sample

    230706-n3f57abh7s

  • MD5

    b478fff5dd0b616c327f3bb257cfde24

  • SHA1

    7bc57780057de4ab89a0728dfce47acab21524b8

  • SHA256

    42b0a4e1c478f7f525758ad8cf77c3e070c76435d76aa2fb5b5fc668929eb7a9

  • SHA512

    e393ab1f7eee1b89d0ffceade9b74798df89068cb08684e07ba6f36c18d8c0918aaeb4e2b55d1c7d5f0a530953c0f2e0b71d46b048f3a5500263bb0d413f6250

  • SSDEEP

    24576:bQZpMNYyYMIus8jTUdfZmHxi/Dv4zQDiRlPqtgui4cP1gYFV:bQZpM2yYXus8oBmw2HxFP1gY7

Malware Config

Targets

    • Target

      476d26810e91e137d1e3325bd66e6432ac6f9941b179cce9297bbcad2c823851

    • Size

      1.1MB

    • MD5

      8240ac402de015516cc0ac72b075fe10

    • SHA1

      5840469aee41db6480a5ba2dfa481a325f9bd50f

    • SHA256

      476d26810e91e137d1e3325bd66e6432ac6f9941b179cce9297bbcad2c823851

    • SHA512

      9f9a4e0ea26c20c830c0285b57cb310ff8c2dc2017be531729ed64a64389eef150876ffc3bbc2d13d131fa0998423cb861c71af8fee50b426df25c9aca7473fc

    • SSDEEP

      24576:Az0w6sYz+o0xfsjcUos+xK5w6sAzKo0xfsjcUos+xKY3mYj3qJPR6wdB:AT6sYOxfsjdos+xKS6sAyxfsjdos+xKh

    • 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

    • Adds Run key to start application

    • Drops desktop.ini file(s)

    • 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