Analysis

  • max time kernel
    130s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-en-20211014
  • submitted
    18-10-2021 12:27

General

  • Target

    52cd71bde1c747ac5eef94c0a71ffe70.exe

  • Size

    689KB

  • MD5

    52cd71bde1c747ac5eef94c0a71ffe70

  • SHA1

    6d10a726bf14496b320851421a60cd4da5837adc

  • SHA256

    916b446b19717fe163480a61d7de015fa27b4a06e352bb0b15b38ff87ce62665

  • SHA512

    4ec9d9b4b5b4ae08663a936e76f10a45cd29a2d28126088f8b232548279350080dca06e08de1f1f2996496797f31c43ccb69f0214f0e81f69db1534bdc652e0e

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot1923270472:AAFHljVp-f8Q5-X0iy70Vfe0aTch5THPa-U/sendDocument

Signatures

  • AgentTesla

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

  • AgentTesla Payload 5 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\52cd71bde1c747ac5eef94c0a71ffe70.exe
    "C:\Users\Admin\AppData\Local\Temp\52cd71bde1c747ac5eef94c0a71ffe70.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1304
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SzbGjGvdD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9914.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1088
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
        PID:1664
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1656

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1088-59-0x0000000000000000-mapping.dmp

    • memory/1304-54-0x0000000000D40000-0x0000000000D41000-memory.dmp

      Filesize

      4KB

    • memory/1304-56-0x0000000006F40000-0x0000000006F41000-memory.dmp

      Filesize

      4KB

    • memory/1304-57-0x0000000000300000-0x000000000030E000-memory.dmp

      Filesize

      56KB

    • memory/1304-58-0x0000000000BB0000-0x0000000000C08000-memory.dmp

      Filesize

      352KB

    • memory/1656-61-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/1656-60-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/1656-63-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/1656-62-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/1656-64-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/1656-65-0x000000000043774E-mapping.dmp

    • memory/1656-66-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/1656-68-0x0000000004A30000-0x0000000004A31000-memory.dmp

      Filesize

      4KB