Analysis

  • max time kernel
    119s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    22-11-2024 20:08

General

  • Target

    a36c66fb7fdfb2639cc0ccdeaeef4e6c1a1cd103ba76309ed32777b3f2ab069d.exe

  • Size

    758KB

  • MD5

    f3c67cd1bbb9c8a8bcb56ee97c5a7b27

  • SHA1

    ad3397267ada55bca8d547dbb93bc79f40d138cf

  • SHA256

    a36c66fb7fdfb2639cc0ccdeaeef4e6c1a1cd103ba76309ed32777b3f2ab069d

  • SHA512

    6bd165450a9007ce4e90a120455bb9ff5914e423e99266cdc854b91aaea9376c3d54f78ab2ee034597ac90de74462f9e9e8b74b598e3d5c3b5edb834df0f757e

  • SSDEEP

    12288:grOY+Ri3AgFdh1QW4s+HCBhKBSh4/wFgfyYVWmTr6bzoAlHJ35mkR:pQ3Ag/QzsjBgBShKagfJVtv63oArD

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot7180778750:AAGcpZL53RI1C6DEr2Yp4lM3UKxKArXTZ4I/

Signatures

  • AgentTesla

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

  • Agenttesla family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • 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 3 TTPs

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

  • Looks up external IP address via web service 1 IoCs

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

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

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a36c66fb7fdfb2639cc0ccdeaeef4e6c1a1cd103ba76309ed32777b3f2ab069d.exe
    "C:\Users\Admin\AppData\Local\Temp\a36c66fb7fdfb2639cc0ccdeaeef4e6c1a1cd103ba76309ed32777b3f2ab069d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1928
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\a36c66fb7fdfb2639cc0ccdeaeef4e6c1a1cd103ba76309ed32777b3f2ab069d.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2344
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\EQVRGq.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:692
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EQVRGq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp232A.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3024
    • C:\Users\Admin\AppData\Local\Temp\a36c66fb7fdfb2639cc0ccdeaeef4e6c1a1cd103ba76309ed32777b3f2ab069d.exe
      "C:\Users\Admin\AppData\Local\Temp\a36c66fb7fdfb2639cc0ccdeaeef4e6c1a1cd103ba76309ed32777b3f2ab069d.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2644

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp232A.tmp

    Filesize

    1KB

    MD5

    b8736e2ce285128aff59fa298b19445d

    SHA1

    39c619aece84be5848bf83bba51c61e1166e6e55

    SHA256

    f5b259478189318d17906f7046fa2e1dba190a7fdbf876abdd081e32eeaa012b

    SHA512

    07e51998f097cd3f14c8a7092faedbbc5ff1e3852f9511eb1d26db35a94dc814a3cf1a4bba809745f8708be7d27888a4d5e3068cec85b7dbdaf8f2dce86fae73

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\K9GGY5W2M7AARPUH74D4.temp

    Filesize

    7KB

    MD5

    f5e33c1df89e7600655c038730d995bd

    SHA1

    5608febce6af421845a76093a9f9adb0e4745239

    SHA256

    42df38f608fabac1ea1016ae99eb6bfad4d2c14a52cfe8639a8842cc79d992ba

    SHA512

    4389242f4041869c3a3341476b622c0bbd9f61adb269050fae31e8f70f632e947785d9c4941810ca7d5b6afc0850c86d1c8850f58c0ad66a08c4e9778ae7f63f

  • memory/1928-31-0x0000000074100000-0x00000000747EE000-memory.dmp

    Filesize

    6.9MB

  • memory/1928-1-0x0000000000810000-0x00000000008CE000-memory.dmp

    Filesize

    760KB

  • memory/1928-2-0x0000000074100000-0x00000000747EE000-memory.dmp

    Filesize

    6.9MB

  • memory/1928-3-0x00000000004D0000-0x00000000004E2000-memory.dmp

    Filesize

    72KB

  • memory/1928-4-0x0000000074100000-0x00000000747EE000-memory.dmp

    Filesize

    6.9MB

  • memory/1928-5-0x0000000004EC0000-0x0000000004F48000-memory.dmp

    Filesize

    544KB

  • memory/1928-0-0x000000007410E000-0x000000007410F000-memory.dmp

    Filesize

    4KB

  • memory/2644-20-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2644-28-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2644-30-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2644-24-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2644-22-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2644-18-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2644-27-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2644-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB