Analysis

  • max time kernel
    35s
  • max time network
    96s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    22/11/2024, 02:54

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:2792
    • 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:2844
    • 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:2636
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EQVRGq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp91F3.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:2788

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp91F3.tmp

    Filesize

    1KB

    MD5

    58ef70ee62a30ae1db3aa1de0d66c33b

    SHA1

    678c69398b3814ed0ae7ad4c60492b0bf998c450

    SHA256

    c685be5af60f03b09b6ddcb465276a2fd4716eaf51b071d037342e95a7d06052

    SHA512

    8f38ef271793f5a6140c28e4f4594c777a9b08a62b53d42d1d22aff1fbe72f6177028559f3dfef4014fde735538fa770060a093407fec78c7055ad207fabf97f

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\VGMWJIZ5D23WKNMO4J10.temp

    Filesize

    7KB

    MD5

    ea233c0c34dbc29a120133844315b0d7

    SHA1

    97b61ee39a7ed75b5bd917e872f04f901b9d1829

    SHA256

    92d37a8cb47daef782c874fcbeeafcc39ca530dda7f94a8e7b40f38a3e335581

    SHA512

    d32f9efa2c546afef2800b18312a05a0a986872e91cf6413f3ffe2044175179debd6002ddfe93af3edd1a5bba0c31d33dc4412fba0d5978aaf4e5564345d79eb

  • memory/2788-28-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2788-29-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2788-21-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2788-23-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2788-25-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2788-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2788-30-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2788-19-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/2792-6-0x00000000051B0000-0x0000000005238000-memory.dmp

    Filesize

    544KB

  • memory/2792-1-0x00000000011F0000-0x00000000012AE000-memory.dmp

    Filesize

    760KB

  • memory/2792-0-0x00000000744AE000-0x00000000744AF000-memory.dmp

    Filesize

    4KB

  • memory/2792-2-0x00000000744A0000-0x0000000074B8E000-memory.dmp

    Filesize

    6.9MB

  • memory/2792-3-0x00000000744AE000-0x00000000744AF000-memory.dmp

    Filesize

    4KB

  • memory/2792-5-0x00000000744A0000-0x0000000074B8E000-memory.dmp

    Filesize

    6.9MB

  • memory/2792-4-0x0000000000940000-0x0000000000952000-memory.dmp

    Filesize

    72KB

  • memory/2792-31-0x00000000744A0000-0x0000000074B8E000-memory.dmp

    Filesize

    6.9MB