Analysis

  • max time kernel
    120s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    10-06-2024 01:06

General

  • Target

    30ca5727ae84edb40e25c235e7b33cb5c2385b7e3b3b500e5c16c83a138fd0df.exe

  • Size

    949KB

  • MD5

    b5a68647eea30d0505d4875ce40d2e3a

  • SHA1

    9d6a2cd0a584d0ef3add7985befcb6b227a415c0

  • SHA256

    30ca5727ae84edb40e25c235e7b33cb5c2385b7e3b3b500e5c16c83a138fd0df

  • SHA512

    9337f1348dcdd368327522a638852034b6708c7f280dbd985dfa500dcc05692ca42a344bd2ed9f8b878cc6eb533e290c6fcf358da64055d96104a8c71fa0fc6a

  • SSDEEP

    24576:SXb9uCzv9yjw6CtZdtHqDY4b04sWHW28+L:EbZxyjw33GDpfx228+L

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot7298628587:AAG6lzqWXJAVtphbJGL5NvKrLWQRpBYxCwU/

Signatures

  • AgentTesla

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

  • 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 2 TTPs

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

  • Looks up external IP address via web service 3 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).

  • 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 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\30ca5727ae84edb40e25c235e7b33cb5c2385b7e3b3b500e5c16c83a138fd0df.exe
    "C:\Users\Admin\AppData\Local\Temp\30ca5727ae84edb40e25c235e7b33cb5c2385b7e3b3b500e5c16c83a138fd0df.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1952
    • 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\30ca5727ae84edb40e25c235e7b33cb5c2385b7e3b3b500e5c16c83a138fd0df.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2376
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\TbKBOhScJ.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2708
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TbKBOhScJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4672.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2584
    • C:\Users\Admin\AppData\Local\Temp\30ca5727ae84edb40e25c235e7b33cb5c2385b7e3b3b500e5c16c83a138fd0df.exe
      "C:\Users\Admin\AppData\Local\Temp\30ca5727ae84edb40e25c235e7b33cb5c2385b7e3b3b500e5c16c83a138fd0df.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2692

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp4672.tmp

    Filesize

    1KB

    MD5

    644ee91429ae7a0d26fc405d4a545375

    SHA1

    2b5c948546fb3030480e40cca9ea3ca590f38be3

    SHA256

    7800aea5291c8b42c104b1fa6226cf146bcaca9f11df5593a51242ee4705f063

    SHA512

    24ae19fafe9b249c685531ab6b52be7c19df932c04d1b8a93b1e104119c85cd31578ba6f2d5b01f2f1833222d0eb8433696eb99f4797c2ba80a19d1b2a547d95

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

    Filesize

    7KB

    MD5

    95fc9aa4030b3c47ee63ee8aef5f828b

    SHA1

    1e4c94ea5b81504750ee7fa47507d1d406d75a4c

    SHA256

    c62ceb1eafaa94b68ffb4811759e721ca6641b0458972d6366ff68891d0b1e1e

    SHA512

    fc33e1bcd42593b6ee1475515155936d496adb67dbabd463322914934c9da79fa553828b9dd1d06eb715f7c91ea9e1ca8cacd1dfe2085838dc143ae21c0bc555

  • memory/1952-4-0x0000000000640000-0x0000000000656000-memory.dmp

    Filesize

    88KB

  • memory/1952-3-0x0000000005620000-0x00000000056C0000-memory.dmp

    Filesize

    640KB

  • memory/1952-0-0x000000007447E000-0x000000007447F000-memory.dmp

    Filesize

    4KB

  • memory/1952-5-0x00000000006A0000-0x00000000006AE000-memory.dmp

    Filesize

    56KB

  • memory/1952-6-0x00000000006C0000-0x00000000006D0000-memory.dmp

    Filesize

    64KB

  • memory/1952-7-0x00000000057C0000-0x0000000005844000-memory.dmp

    Filesize

    528KB

  • memory/1952-2-0x0000000074470000-0x0000000074B5E000-memory.dmp

    Filesize

    6.9MB

  • memory/1952-1-0x0000000000CC0000-0x0000000000DB2000-memory.dmp

    Filesize

    968KB

  • memory/1952-33-0x0000000074470000-0x0000000074B5E000-memory.dmp

    Filesize

    6.9MB

  • memory/2692-29-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2692-32-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2692-30-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2692-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2692-24-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2692-26-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2692-22-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2692-20-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB