Analysis

  • max time kernel
    109s
  • max time network
    117s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/04/2024, 13:51

General

  • Target

    897199ac29d5d1bd3a92f0cb0f8be6f3575dfcdc8ded7d73da2900ced9c56669.exe

  • Size

    344KB

  • MD5

    db5a06e5fb1553a24338648941f58281

  • SHA1

    20ea69c3420ad62b1ef4423370ebeb8b326a50b9

  • SHA256

    897199ac29d5d1bd3a92f0cb0f8be6f3575dfcdc8ded7d73da2900ced9c56669

  • SHA512

    c703e563bef7d398b70454e35f8dad4855bd24d0e5b9ebaff5682f10fb0819c9946c6cbad040ddb0c863a4044ebb54807b317c5196f34d0dec0e09b352c253d9

  • SSDEEP

    6144:3J89OaYXcheo68PB8+V5hLI2msxbvuDqPNxuklLb46oanY3eoFXntD40eopoG:iOPXcVP+YLYwi2PNxddcenY3eIXntDts

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.bezzleauto.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    |[NbQj>}o^#0

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Looks up external IP address via web service 2 IoCs

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

  • Suspicious use of SetThreadContext 3 IoCs
  • Program crash 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\897199ac29d5d1bd3a92f0cb0f8be6f3575dfcdc8ded7d73da2900ced9c56669.exe
    "C:\Users\Admin\AppData\Local\Temp\897199ac29d5d1bd3a92f0cb0f8be6f3575dfcdc8ded7d73da2900ced9c56669.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4196
    • C:\Users\Admin\AppData\Local\Temp\897199ac29d5d1bd3a92f0cb0f8be6f3575dfcdc8ded7d73da2900ced9c56669.exe
      "C:\Users\Admin\AppData\Local\Temp\897199ac29d5d1bd3a92f0cb0f8be6f3575dfcdc8ded7d73da2900ced9c56669.exe"
      2⤵
        PID:1888
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1888 -s 80
          3⤵
          • Program crash
          PID:4876
      • C:\Users\Admin\AppData\Local\Temp\897199ac29d5d1bd3a92f0cb0f8be6f3575dfcdc8ded7d73da2900ced9c56669.exe
        "C:\Users\Admin\AppData\Local\Temp\897199ac29d5d1bd3a92f0cb0f8be6f3575dfcdc8ded7d73da2900ced9c56669.exe"
        2⤵
          PID:1964
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 1964 -s 80
            3⤵
            • Program crash
            PID:1292
        • C:\Users\Admin\AppData\Local\Temp\897199ac29d5d1bd3a92f0cb0f8be6f3575dfcdc8ded7d73da2900ced9c56669.exe
          "C:\Users\Admin\AppData\Local\Temp\897199ac29d5d1bd3a92f0cb0f8be6f3575dfcdc8ded7d73da2900ced9c56669.exe"
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:5016
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1888 -ip 1888
        1⤵
          PID:3032
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1964 -ip 1964
          1⤵
            PID:4808

          Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • memory/4196-0-0x0000000000890000-0x00000000008EC000-memory.dmp

                  Filesize

                  368KB

                • memory/4196-1-0x0000000074E70000-0x0000000075620000-memory.dmp

                  Filesize

                  7.7MB

                • memory/4196-2-0x0000000005370000-0x0000000005380000-memory.dmp

                  Filesize

                  64KB

                • memory/4196-4-0x0000000002C40000-0x0000000002C41000-memory.dmp

                  Filesize

                  4KB

                • memory/4196-11-0x0000000074E70000-0x0000000075620000-memory.dmp

                  Filesize

                  7.7MB

                • memory/5016-10-0x0000000005440000-0x00000000054A6000-memory.dmp

                  Filesize

                  408KB

                • memory/5016-8-0x0000000005980000-0x0000000005F24000-memory.dmp

                  Filesize

                  5.6MB

                • memory/5016-9-0x0000000005360000-0x0000000005370000-memory.dmp

                  Filesize

                  64KB

                • memory/5016-7-0x0000000074E70000-0x0000000075620000-memory.dmp

                  Filesize

                  7.7MB

                • memory/5016-6-0x0000000000400000-0x0000000000440000-memory.dmp

                  Filesize

                  256KB

                • memory/5016-12-0x0000000006920000-0x0000000006970000-memory.dmp

                  Filesize

                  320KB

                • memory/5016-13-0x0000000006A10000-0x0000000006AAC000-memory.dmp

                  Filesize

                  624KB

                • memory/5016-14-0x0000000006B50000-0x0000000006BE2000-memory.dmp

                  Filesize

                  584KB

                • memory/5016-15-0x0000000006AC0000-0x0000000006ACA000-memory.dmp

                  Filesize

                  40KB

                • memory/5016-16-0x0000000074E70000-0x0000000075620000-memory.dmp

                  Filesize

                  7.7MB

                • memory/5016-17-0x0000000005360000-0x0000000005370000-memory.dmp

                  Filesize

                  64KB