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Analysis

  • max time kernel
    111s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    04/09/2024, 14:52

General

  • Target

    5474194c07b4f0b5144069d189cd55adfd2e9e8e89bbbdba6153e173a094ff42.exe

  • Size

    705KB

  • MD5

    8645375a86a6176bd04b81b91f03a1a6

  • SHA1

    5e35f5830e5230e92270e71bdc901ac570cd7c19

  • SHA256

    5474194c07b4f0b5144069d189cd55adfd2e9e8e89bbbdba6153e173a094ff42

  • SHA512

    55227147571247e282821651a3c0097322bbad696e9a0fd63d15e968f882078987d4e4308458d77322a7ccbef51088b7d02468d6a9a7e55eef77d3190eb4fb00

  • SSDEEP

    12288:y5fzk6jQUtGzdOTImOMZXggiUspKjDSy4AmjxSoLn6+1LkACCslHGBZXTrCyQdRR:SLQ1zCOiXg22y4Aex1gwslHGBdy3Rv6S

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • 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 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).

  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5474194c07b4f0b5144069d189cd55adfd2e9e8e89bbbdba6153e173a094ff42.exe
    "C:\Users\Admin\AppData\Local\Temp\5474194c07b4f0b5144069d189cd55adfd2e9e8e89bbbdba6153e173a094ff42.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2564
    • 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\5474194c07b4f0b5144069d189cd55adfd2e9e8e89bbbdba6153e173a094ff42.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2008
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\bvPYqpQavc.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2752
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bvPYqpQavc" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD327.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2892
    • C:\Users\Admin\AppData\Local\Temp\5474194c07b4f0b5144069d189cd55adfd2e9e8e89bbbdba6153e173a094ff42.exe
      "C:\Users\Admin\AppData\Local\Temp\5474194c07b4f0b5144069d189cd55adfd2e9e8e89bbbdba6153e173a094ff42.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2732

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpD327.tmp

    Filesize

    1KB

    MD5

    93059b2d9be5c0b175a8c4590bf76e74

    SHA1

    9cc693f6f28f22e3452d5c54040d4fb37460a380

    SHA256

    775d8d8781d7586ea58cfa8bf45a14c605c4563bd1b0a727d4356d2c32f9e1e2

    SHA512

    1534d1b0a11a323e8c3ce2842160fdc1818220c7f8c663d9168f008c9ea88592c0a41987b2e3cde117bc8bcd5462c53aa5354d22c07ef167f39437734d42444b

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

    Filesize

    7KB

    MD5

    46dcc78258121a5d38fda84155e6ed41

    SHA1

    0fdf62c659053914db236147e82e4ab5b23ea34e

    SHA256

    46692dee2304f2b908e37c430cbc1c6b8cd1d0a0d517e4f508a32afc5a94794e

    SHA512

    bc52e4c71f77b75eba3d211caf8ab3ab502958b63b6614ca026f869323870bb92239512186dfcceb6c4a0512bab6cff18c46bd3b16da60c2bedadbcee3d69a2b

  • memory/2564-4-0x0000000074BCE000-0x0000000074BCF000-memory.dmp

    Filesize

    4KB

  • memory/2564-3-0x0000000000440000-0x000000000045A000-memory.dmp

    Filesize

    104KB

  • memory/2564-0-0x0000000074BCE000-0x0000000074BCF000-memory.dmp

    Filesize

    4KB

  • memory/2564-5-0x0000000074BC0000-0x00000000752AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2564-6-0x0000000000460000-0x000000000046E000-memory.dmp

    Filesize

    56KB

  • memory/2564-7-0x0000000001030000-0x00000000010B4000-memory.dmp

    Filesize

    528KB

  • memory/2564-2-0x0000000074BC0000-0x00000000752AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2564-1-0x0000000001280000-0x0000000001330000-memory.dmp

    Filesize

    704KB

  • memory/2564-32-0x0000000074BC0000-0x00000000752AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2732-27-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2732-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2732-31-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2732-30-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2732-29-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2732-22-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2732-20-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2732-25-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB