Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/11/2024, 02:14

General

  • Target

    27c91ee96335f2e104c62a7cd00643f19dfc31f841984a4020235fc98fa01579.exe

  • Size

    357KB

  • MD5

    b10c2067fbaf70d25aad7a398c34314d

  • SHA1

    063e4fda1db6ba10e0c3efd9e2824ae93b67e38b

  • SHA256

    27c91ee96335f2e104c62a7cd00643f19dfc31f841984a4020235fc98fa01579

  • SHA512

    ca7155d36108be3e4472d62518db52370af8bbeaf8eb447cb280e643b13d552f65c042f55eb92d5ad0891848eed17236852d95da919a891ccbcff5a545320849

  • SSDEEP

    6144:RxtLQ+SM/E+f8SzAmWeTyCREZErp/z6JnIYEYDQco30hzWRlRGUzt:RfLQ+lz8+RRTyCu06JnIYj7BWRP

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.adenerqyeurope.co.uk
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    j0#c!nNq6iW%

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.

  • 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.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 1 IoCs

    Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

  • 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 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\27c91ee96335f2e104c62a7cd00643f19dfc31f841984a4020235fc98fa01579.exe
    "C:\Users\Admin\AppData\Local\Temp\27c91ee96335f2e104c62a7cd00643f19dfc31f841984a4020235fc98fa01579.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:3620
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\orcHPGIOhYkzPQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8DA9.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:1996
    • C:\Users\Admin\AppData\Local\Temp\27c91ee96335f2e104c62a7cd00643f19dfc31f841984a4020235fc98fa01579.exe
      "C:\Users\Admin\AppData\Local\Temp\27c91ee96335f2e104c62a7cd00643f19dfc31f841984a4020235fc98fa01579.exe"
      2⤵
        PID:3460
      • C:\Users\Admin\AppData\Local\Temp\27c91ee96335f2e104c62a7cd00643f19dfc31f841984a4020235fc98fa01579.exe
        "C:\Users\Admin\AppData\Local\Temp\27c91ee96335f2e104c62a7cd00643f19dfc31f841984a4020235fc98fa01579.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        • outlook_office_path
        • outlook_win_path
        PID:3508
        • C:\Windows\SysWOW64\netsh.exe
          "netsh" wlan show profile
          3⤵
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          • System Network Configuration Discovery: Wi-Fi Discovery
          PID:1800

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\27c91ee96335f2e104c62a7cd00643f19dfc31f841984a4020235fc98fa01579.exe.log

      Filesize

      496B

      MD5

      cb76b18ebed3a9f05a14aed43d35fba6

      SHA1

      836a4b4e351846fca08b84149cb734cb59b8c0d6

      SHA256

      8d0edecf54cbbdf7981c8e41a3ed8621503188a87415f9af0fb8d890b138c349

      SHA512

      7631141e4a6dda29452ada666326837372cd3d045f773006f63d9eff15d9432ed00029d9108a72c1a3b858377600a2aab2c9ec03764285c8801b6019babcf21c

    • C:\Users\Admin\AppData\Local\Temp\tmp8DA9.tmp

      Filesize

      1KB

      MD5

      17c8af9ba4dd73b689b12dc3b75c9b7c

      SHA1

      54bdae5657bdb26ab56e3ff2832ebe0b12ea8e84

      SHA256

      ad326615a6be8579a66bbb828d9d5667c8f3acd901d2f74347f598b3b4089f43

      SHA512

      622b542d618a4d33d413b1d565d1f8bc7918adc7d1d4c4f8b43ea4957c61d492f7251c56166caa94e8c2975276210084de9326543cb88286a2feba3750a718c0

    • memory/3508-14-0x00000000753B0000-0x0000000075961000-memory.dmp

      Filesize

      5.7MB

    • memory/3508-8-0x0000000000400000-0x0000000000450000-memory.dmp

      Filesize

      320KB

    • memory/3508-12-0x00000000753B0000-0x0000000075961000-memory.dmp

      Filesize

      5.7MB

    • memory/3508-13-0x00000000753B0000-0x0000000075961000-memory.dmp

      Filesize

      5.7MB

    • memory/3508-15-0x00000000753B0000-0x0000000075961000-memory.dmp

      Filesize

      5.7MB

    • memory/3508-16-0x00000000753B0000-0x0000000075961000-memory.dmp

      Filesize

      5.7MB

    • memory/3508-17-0x00000000753B0000-0x0000000075961000-memory.dmp

      Filesize

      5.7MB

    • memory/3620-2-0x00000000753B0000-0x0000000075961000-memory.dmp

      Filesize

      5.7MB

    • memory/3620-1-0x00000000753B0000-0x0000000075961000-memory.dmp

      Filesize

      5.7MB

    • memory/3620-11-0x00000000753B0000-0x0000000075961000-memory.dmp

      Filesize

      5.7MB

    • memory/3620-0-0x00000000753B2000-0x00000000753B3000-memory.dmp

      Filesize

      4KB