Analysis

  • max time kernel
    109s
  • max time network
    18s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    21-11-2024 06:35

General

  • Target

    5te4PIwT1yN3uoO.exe

  • Size

    938KB

  • MD5

    63c70a8ea2949efc26293b193cbe35af

  • SHA1

    1d77376c5d4811a5593a867e73c153154f5579d6

  • SHA256

    c46a47ea1e1ceb743b473941c35a12474ce3dc4e0b7ec94639c3886742223df1

  • SHA512

    323352d6b6671f686b2def87066a92486811edf473791c83d4ac61e724e059c462652d1b0d8d875c045c9cfe674ba455c6a6b7f677dca31dcdc1af7638170ab0

  • SSDEEP

    24576:Bz05zxWDvJUJLEp2NhP1v7m9IzI54S6E9:Bz0rWDvCJLEp2NFhm6zI5p6

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    graceofgod@amen

Signatures

  • AgentTesla

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

  • Agenttesla family
  • AgentTesla payload 5 IoCs
  • 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.

  • 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).

  • 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
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5te4PIwT1yN3uoO.exe
    "C:\Users\Admin\AppData\Local\Temp\5te4PIwT1yN3uoO.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2172
    • 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\5te4PIwT1yN3uoO.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2876
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\DcpXLcQa.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2756
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DcpXLcQa" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4C1D.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3000
    • C:\Users\Admin\AppData\Local\Temp\5te4PIwT1yN3uoO.exe
      "C:\Users\Admin\AppData\Local\Temp\5te4PIwT1yN3uoO.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:1128

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp4C1D.tmp

    Filesize

    1KB

    MD5

    0d37e14dc5ed147c473c2f39e400961e

    SHA1

    cf1d8d5272554770acb4a1f2626648a6e2aac1dc

    SHA256

    242c59b783096c54d6d4dd86cf9e48340f9343e00f269cb16a633c7976c2762e

    SHA512

    8a5ed76b6c9dcbd4291578b56d4e7f44e890d950dd95925177edba26cc67a4bb51d799b3b7cb6784614f11ce24f95329677dc132153d4206e99c576cff72eb23

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

    Filesize

    7KB

    MD5

    478e7c8b86049a48c176d6993b7f4102

    SHA1

    efe0e021e8cc1cea0ba0bed64bd279eb9cf7f496

    SHA256

    3ba0c3c05091614b4019284c7172ffbb0f96fbdde549cfccaf3c6ed3c3515d4d

    SHA512

    f2e07f3a85d5cc4aab6d47b658b084aadb6c69f433d7bf652cdcd9f084c98f082cf5e65cff787104694ae9471cbadadb55a7b8879107f96b9039ae3d94058d0d

  • memory/1128-29-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1128-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1128-21-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1128-23-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1128-25-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1128-28-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1128-31-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1128-19-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2172-6-0x0000000005330000-0x00000000053B0000-memory.dmp

    Filesize

    512KB

  • memory/2172-1-0x0000000001170000-0x0000000001260000-memory.dmp

    Filesize

    960KB

  • memory/2172-0-0x000000007430E000-0x000000007430F000-memory.dmp

    Filesize

    4KB

  • memory/2172-2-0x0000000074300000-0x00000000749EE000-memory.dmp

    Filesize

    6.9MB

  • memory/2172-3-0x0000000000300000-0x0000000000312000-memory.dmp

    Filesize

    72KB

  • memory/2172-5-0x0000000074300000-0x00000000749EE000-memory.dmp

    Filesize

    6.9MB

  • memory/2172-4-0x000000007430E000-0x000000007430F000-memory.dmp

    Filesize

    4KB

  • memory/2172-32-0x0000000074300000-0x00000000749EE000-memory.dmp

    Filesize

    6.9MB