Analysis

  • max time kernel
    91s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-11-2022 06:29

General

  • Target

    SecuriteInfo.com.Win32.PWSX-gen.13823.2867.exe

  • Size

    721KB

  • MD5

    c3fe37b45116098cb1ed8e4e6f0c4538

  • SHA1

    c2c9bb8b43ac5d3afbe6ca9f1325658a378c30d0

  • SHA256

    0f155dc030189c0a4f9f55ca60c8e0b73fccba5666b2360f6e9621b61eaca01d

  • SHA512

    723510f02aa124739b935f2868ea33f3a979294633b8b8ea2f0d7c7fa444c9c409563e04dc63e85b20c91f10d6aba233cd7002ed425b79a40223880c319c8397

  • SSDEEP

    12288:CcMjqbJUsCFTcI2RU3bZcBzAslg1r7jSCYmZJbxpDF:BMm90FTcA9TswyCY

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5708078300:AAEFI-GQEmOXcZxhDq61-Uiq0tA6DEnImIM/

Signatures

  • AgentTesla

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 2 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). Likely ransomware behaviour.

  • 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 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.13823.2867.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.13823.2867.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4572
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\LAFTsDDHUSp.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1500
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LAFTsDDHUSp" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6C56.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3440
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.13823.2867.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.13823.2867.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:2160

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp6C56.tmp

    Filesize

    1KB

    MD5

    89ece9072f316ad39488a262d8f61d75

    SHA1

    d173dc1ec508e3bf3df8f596c17341756b4f9ba0

    SHA256

    9cb8e603525c85702c01bb9b937feea2bc41f816630cb4fd0dc9a20965eec32d

    SHA512

    81afb6c597ddf4e79fc72c1901d88f5104ba37f5f248fb1c4f80099672f419e69fbea386ac7fe58bc47c2e1617cd0da73d4d0b53ba938becad2932dd91e6f58b

  • memory/1500-150-0x0000000006CF0000-0x0000000006D0E000-memory.dmp

    Filesize

    120KB

  • memory/1500-144-0x0000000005790000-0x00000000057B2000-memory.dmp

    Filesize

    136KB

  • memory/1500-146-0x0000000005F10000-0x0000000005F76000-memory.dmp

    Filesize

    408KB

  • memory/1500-147-0x0000000006730000-0x000000000674E000-memory.dmp

    Filesize

    120KB

  • memory/1500-137-0x0000000000000000-mapping.dmp

  • memory/1500-153-0x0000000007AB0000-0x0000000007ABA000-memory.dmp

    Filesize

    40KB

  • memory/1500-139-0x0000000002E10000-0x0000000002E46000-memory.dmp

    Filesize

    216KB

  • memory/1500-145-0x0000000005830000-0x0000000005896000-memory.dmp

    Filesize

    408KB

  • memory/1500-152-0x0000000007A40000-0x0000000007A5A000-memory.dmp

    Filesize

    104KB

  • memory/1500-151-0x0000000008090000-0x000000000870A000-memory.dmp

    Filesize

    6.5MB

  • memory/1500-143-0x00000000058E0000-0x0000000005F08000-memory.dmp

    Filesize

    6.2MB

  • memory/1500-154-0x0000000007CC0000-0x0000000007D56000-memory.dmp

    Filesize

    600KB

  • memory/1500-155-0x0000000007C70000-0x0000000007C7E000-memory.dmp

    Filesize

    56KB

  • memory/1500-157-0x0000000007D60000-0x0000000007D68000-memory.dmp

    Filesize

    32KB

  • memory/1500-156-0x0000000007D80000-0x0000000007D9A000-memory.dmp

    Filesize

    104KB

  • memory/1500-148-0x0000000006D10000-0x0000000006D42000-memory.dmp

    Filesize

    200KB

  • memory/1500-149-0x0000000070950000-0x000000007099C000-memory.dmp

    Filesize

    304KB

  • memory/2160-158-0x0000000006E70000-0x0000000006EC0000-memory.dmp

    Filesize

    320KB

  • memory/2160-142-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/2160-141-0x0000000000000000-mapping.dmp

  • memory/3440-138-0x0000000000000000-mapping.dmp

  • memory/4572-133-0x0000000005E90000-0x0000000006434000-memory.dmp

    Filesize

    5.6MB

  • memory/4572-132-0x0000000000DD0000-0x0000000000E8A000-memory.dmp

    Filesize

    744KB

  • memory/4572-136-0x00000000094B0000-0x000000000954C000-memory.dmp

    Filesize

    624KB

  • memory/4572-135-0x00000000059D0000-0x00000000059DA000-memory.dmp

    Filesize

    40KB

  • memory/4572-134-0x0000000005820000-0x00000000058B2000-memory.dmp

    Filesize

    584KB