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Analysis

  • max time kernel
    93s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/11/2024, 01:18

General

  • Target

    6dea68022ac1865157082d6490fc038bda7585ab31329fd6bdd3b554854a6fae.exe

  • Size

    530KB

  • MD5

    0841c2069574298555b6fc6a6b650318

  • SHA1

    9594c397737cf58dda9a442db8940cb7771c6c4e

  • SHA256

    6dea68022ac1865157082d6490fc038bda7585ab31329fd6bdd3b554854a6fae

  • SHA512

    7713dfd123e3406a8edd2e8070eead65c6a6b7d456737783bd0c2ac7ada0b590bb820ffa2cde0122e80f69330cfe3dd7eb4ab0aac638c079a3b3c38aa17664bd

  • SSDEEP

    6144:sGxhLqIj0vvROK1cCu+mTKZ4NYrY0WWIx+L766MrREfaA3T6FemuszQxbbEakca4:FVwZTjuf+Z4T06x0766M/AD0emk5fa5O

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.jiemeimoulds.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    solution2527937

Signatures

  • AgentTesla

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

  • Agenttesla family
  • AgentTesla payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6dea68022ac1865157082d6490fc038bda7585ab31329fd6bdd3b554854a6fae.exe
    "C:\Users\Admin\AppData\Local\Temp\6dea68022ac1865157082d6490fc038bda7585ab31329fd6bdd3b554854a6fae.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2216
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZOOuQZIb" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB6E.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4724
    • C:\Users\Admin\AppData\Local\Temp\6dea68022ac1865157082d6490fc038bda7585ab31329fd6bdd3b554854a6fae.exe
      "C:\Users\Admin\AppData\Local\Temp\6dea68022ac1865157082d6490fc038bda7585ab31329fd6bdd3b554854a6fae.exe"
      2⤵
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1712
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1712 -s 1496
        3⤵
        • Program crash
        PID:1988
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 1712 -ip 1712
    1⤵
      PID:4124

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1712-16-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/1712-26-0x0000000074500000-0x0000000074CB0000-memory.dmp

      Filesize

      7.7MB

    • memory/1712-24-0x0000000074500000-0x0000000074CB0000-memory.dmp

      Filesize

      7.7MB

    • memory/1712-23-0x0000000074500000-0x0000000074CB0000-memory.dmp

      Filesize

      7.7MB

    • memory/1712-22-0x0000000006680000-0x00000000066E6000-memory.dmp

      Filesize

      408KB

    • memory/1712-21-0x00000000059E0000-0x00000000059F8000-memory.dmp

      Filesize

      96KB

    • memory/1712-20-0x0000000074500000-0x0000000074CB0000-memory.dmp

      Filesize

      7.7MB

    • memory/1712-18-0x0000000074500000-0x0000000074CB0000-memory.dmp

      Filesize

      7.7MB

    • memory/2216-5-0x0000000004DF0000-0x0000000004DFA000-memory.dmp

      Filesize

      40KB

    • memory/2216-9-0x0000000007B20000-0x0000000007BBC000-memory.dmp

      Filesize

      624KB

    • memory/2216-10-0x0000000007C70000-0x0000000007CD0000-memory.dmp

      Filesize

      384KB

    • memory/2216-8-0x0000000074500000-0x0000000074CB0000-memory.dmp

      Filesize

      7.7MB

    • memory/2216-7-0x000000007450E000-0x000000007450F000-memory.dmp

      Filesize

      4KB

    • memory/2216-19-0x0000000074500000-0x0000000074CB0000-memory.dmp

      Filesize

      7.7MB

    • memory/2216-6-0x00000000051D0000-0x00000000051DE000-memory.dmp

      Filesize

      56KB

    • memory/2216-0-0x000000007450E000-0x000000007450F000-memory.dmp

      Filesize

      4KB

    • memory/2216-4-0x0000000074500000-0x0000000074CB0000-memory.dmp

      Filesize

      7.7MB

    • memory/2216-3-0x0000000004E60000-0x0000000004EF2000-memory.dmp

      Filesize

      584KB

    • memory/2216-2-0x0000000005370000-0x0000000005914000-memory.dmp

      Filesize

      5.6MB

    • memory/2216-1-0x00000000004B0000-0x000000000053A000-memory.dmp

      Filesize

      552KB