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General

  • Target

    19a775bd69ce741a815e6f67b3b78d04fad87a296ed2515e88b1ad3fc5a74aae

  • Size

    66KB

  • Sample

    240308-b882yaca84

  • MD5

    263e05601d520fc6dddae63a2346eca6

  • SHA1

    55f96d85611d46d948370b68dd300b0fc9042f2b

  • SHA256

    19a775bd69ce741a815e6f67b3b78d04fad87a296ed2515e88b1ad3fc5a74aae

  • SHA512

    be39fcd50974e85953ffdb1949dfa48c4210cc21877bdf88037da220ee6111231210e5c95508c5e019aecdae5e793bd8980089cf3f07925fd80b8fec204218e0

  • SSDEEP

    1536:Ly6MbbaxUMCQrO1u/gBGW+CBkXZ866D4ek9XSaJMLcv:LyF1u/gBSXZ866tkXSa6Lcv

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      19a775bd69ce741a815e6f67b3b78d04fad87a296ed2515e88b1ad3fc5a74aae

    • Size

      66KB

    • MD5

      263e05601d520fc6dddae63a2346eca6

    • SHA1

      55f96d85611d46d948370b68dd300b0fc9042f2b

    • SHA256

      19a775bd69ce741a815e6f67b3b78d04fad87a296ed2515e88b1ad3fc5a74aae

    • SHA512

      be39fcd50974e85953ffdb1949dfa48c4210cc21877bdf88037da220ee6111231210e5c95508c5e019aecdae5e793bd8980089cf3f07925fd80b8fec204218e0

    • SSDEEP

      1536:Ly6MbbaxUMCQrO1u/gBGW+CBkXZ866D4ek9XSaJMLcv:LyF1u/gBSXZ866tkXSa6Lcv

    • 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 WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • 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.

    • 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 v15

Tasks