General

  • Target

    MSK203.exe

  • Size

    495KB

  • Sample

    240522-yc5qzadh8w

  • MD5

    672127d627b0d1ffdc8f4f6a7f6a4697

  • SHA1

    965c08f135e270201ca61122955104c0de39ad9f

  • SHA256

    c26d121b096af68fc785a4e7fbd821c0c63a64abd2a64c9abf237fe98d0ddf42

  • SHA512

    f3e6c7837c767944d7e14cac75e5844fa217cfdc3d6dcae575a7d0ad2740617cce9e53e6b28f947114708361570972150737c9c1e3663b5b3ee9fd55a2d6a746

  • SSDEEP

    12288:Pbm37Owct5ERd1ZRad1I5eA2bZxeyCNNrmj:Pbms5EP1CAsZxse

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6859247669:AAER1Rty_3TqZr1VmGGzXWMbtAZFtnPCWCU/

Targets

    • Target

      MSK203.exe

    • Size

      495KB

    • MD5

      672127d627b0d1ffdc8f4f6a7f6a4697

    • SHA1

      965c08f135e270201ca61122955104c0de39ad9f

    • SHA256

      c26d121b096af68fc785a4e7fbd821c0c63a64abd2a64c9abf237fe98d0ddf42

    • SHA512

      f3e6c7837c767944d7e14cac75e5844fa217cfdc3d6dcae575a7d0ad2740617cce9e53e6b28f947114708361570972150737c9c1e3663b5b3ee9fd55a2d6a746

    • SSDEEP

      12288:Pbm37Owct5ERd1ZRad1I5eA2bZxeyCNNrmj:Pbms5EP1CAsZxse

    • AgentTesla

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

    • 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.

    • 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 NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    • Target

      $PLUGINSDIR/System.dll

    • Size

      12KB

    • MD5

      cff85c549d536f651d4fb8387f1976f2

    • SHA1

      d41ce3a5ff609df9cf5c7e207d3b59bf8a48530e

    • SHA256

      8dc562cda7217a3a52db898243de3e2ed68b80e62ddcb8619545ed0b4e7f65a8

    • SHA512

      531d6328daf3b86d85556016d299798fa06fefc81604185108a342d000e203094c8c12226a12bd6e1f89b0db501fb66f827b610d460b933bd4ab936ac2fd8a88

    • SSDEEP

      192:Zjvco0qWTlt70m5Aj/lQ0sEWD/wtYbBHFNaDybC7y+XBz0QPi:FHQlt70mij/lQRv/9VMjzr

    Score
    3/10

MITRE ATT&CK Matrix ATT&CK v13

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

4
T1005

Tasks