Analysis

  • max time kernel
    54s
  • max time network
    80s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    04-12-2022 15:21

General

  • Target

    aee41e3294113fd8de0408c5b4fe8e3091360ed7dfe330de01f354cf9312fece.exe

  • Size

    900KB

  • MD5

    c68e2fbcf0d6aa032d875eda9d5064f1

  • SHA1

    2a21c0df2831bf8b91c40031f9357afca0adfc72

  • SHA256

    aee41e3294113fd8de0408c5b4fe8e3091360ed7dfe330de01f354cf9312fece

  • SHA512

    c1299d8f7c8893dffd7012f13dd3f03d6ede311c3029514f4d5c3b6257809642e0b5ae1ac0dcc8f6ae4fde4ec9000129e3ab69ad8d0d2760baed3abc3e088073

  • SSDEEP

    6144:QRB3vG8NWZg1ekK2faTCrT8qi43C2bRjgDybJ6yiszBSN+kWAbjouwootyL:muc7KTqi4/pOybhiWBQuuwootyL

Malware Config

Signatures

  • AgentTesla

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

  • AgentTesla payload 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • 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
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\aee41e3294113fd8de0408c5b4fe8e3091360ed7dfe330de01f354cf9312fece.exe
    "C:\Users\Admin\AppData\Local\Temp\aee41e3294113fd8de0408c5b4fe8e3091360ed7dfe330de01f354cf9312fece.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1168
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\subfolder\exxplorer.vbs"
      2⤵
      • Adds Run key to start application
      PID:1920
    • C:\Users\Admin\subfolder\exxplorer.exe
      "C:\Users\Admin\subfolder\exxplorer.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1164
      • C:\Users\Admin\subfolder\exxplorer.exe
        "C:\Users\Admin\subfolder\exxplorer.exe"
        3⤵
        • Executes dropped EXE
        • Accesses Microsoft Outlook profiles
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of UnmapMainImage
        • outlook_office_path
        • outlook_win_path
        PID:1708

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\subfolder\exxplorer.exe
    Filesize

    900KB

    MD5

    c68e2fbcf0d6aa032d875eda9d5064f1

    SHA1

    2a21c0df2831bf8b91c40031f9357afca0adfc72

    SHA256

    aee41e3294113fd8de0408c5b4fe8e3091360ed7dfe330de01f354cf9312fece

    SHA512

    c1299d8f7c8893dffd7012f13dd3f03d6ede311c3029514f4d5c3b6257809642e0b5ae1ac0dcc8f6ae4fde4ec9000129e3ab69ad8d0d2760baed3abc3e088073

  • C:\Users\Admin\subfolder\exxplorer.exe
    Filesize

    900KB

    MD5

    c68e2fbcf0d6aa032d875eda9d5064f1

    SHA1

    2a21c0df2831bf8b91c40031f9357afca0adfc72

    SHA256

    aee41e3294113fd8de0408c5b4fe8e3091360ed7dfe330de01f354cf9312fece

    SHA512

    c1299d8f7c8893dffd7012f13dd3f03d6ede311c3029514f4d5c3b6257809642e0b5ae1ac0dcc8f6ae4fde4ec9000129e3ab69ad8d0d2760baed3abc3e088073

  • C:\Users\Admin\subfolder\exxplorer.exe
    Filesize

    900KB

    MD5

    c68e2fbcf0d6aa032d875eda9d5064f1

    SHA1

    2a21c0df2831bf8b91c40031f9357afca0adfc72

    SHA256

    aee41e3294113fd8de0408c5b4fe8e3091360ed7dfe330de01f354cf9312fece

    SHA512

    c1299d8f7c8893dffd7012f13dd3f03d6ede311c3029514f4d5c3b6257809642e0b5ae1ac0dcc8f6ae4fde4ec9000129e3ab69ad8d0d2760baed3abc3e088073

  • C:\Users\Admin\subfolder\exxplorer.vbs
    Filesize

    1020B

    MD5

    668f506c439afb55333ce3f63411948d

    SHA1

    15001d94551585eb214ebaf016a6dd8e3b1e8330

    SHA256

    ca65c8d391b536df542e2f9bdced0f1a1f72b70e6864b555cf11de64100e0986

    SHA512

    1d902fdf07402483dd212bd3407e0a432bd6347bca620b2ff809d2659842bb16b627b488094798e3e0df6ca9a84f8be7cdfdf9998b65d2f255c29be26ee8bb0b

  • \Users\Admin\subfolder\exxplorer.exe
    Filesize

    900KB

    MD5

    c68e2fbcf0d6aa032d875eda9d5064f1

    SHA1

    2a21c0df2831bf8b91c40031f9357afca0adfc72

    SHA256

    aee41e3294113fd8de0408c5b4fe8e3091360ed7dfe330de01f354cf9312fece

    SHA512

    c1299d8f7c8893dffd7012f13dd3f03d6ede311c3029514f4d5c3b6257809642e0b5ae1ac0dcc8f6ae4fde4ec9000129e3ab69ad8d0d2760baed3abc3e088073

  • \Users\Admin\subfolder\exxplorer.exe
    Filesize

    900KB

    MD5

    c68e2fbcf0d6aa032d875eda9d5064f1

    SHA1

    2a21c0df2831bf8b91c40031f9357afca0adfc72

    SHA256

    aee41e3294113fd8de0408c5b4fe8e3091360ed7dfe330de01f354cf9312fece

    SHA512

    c1299d8f7c8893dffd7012f13dd3f03d6ede311c3029514f4d5c3b6257809642e0b5ae1ac0dcc8f6ae4fde4ec9000129e3ab69ad8d0d2760baed3abc3e088073

  • memory/1164-73-0x0000000077370000-0x0000000077519000-memory.dmp
    Filesize

    1.7MB

  • memory/1164-79-0x0000000077550000-0x00000000776D0000-memory.dmp
    Filesize

    1.5MB

  • memory/1164-78-0x00000000002D0000-0x00000000002E8000-memory.dmp
    Filesize

    96KB

  • memory/1164-62-0x0000000000000000-mapping.dmp
  • memory/1164-74-0x0000000077550000-0x00000000776D0000-memory.dmp
    Filesize

    1.5MB

  • memory/1168-67-0x0000000077370000-0x0000000077519000-memory.dmp
    Filesize

    1.7MB

  • memory/1168-57-0x00000000760E1000-0x00000000760E3000-memory.dmp
    Filesize

    8KB

  • memory/1168-56-0x00000000003C0000-0x00000000003D8000-memory.dmp
    Filesize

    96KB

  • memory/1168-65-0x00000000003C0000-0x00000000003D8000-memory.dmp
    Filesize

    96KB

  • memory/1168-69-0x0000000077550000-0x00000000776D0000-memory.dmp
    Filesize

    1.5MB

  • memory/1708-85-0x0000000077550000-0x00000000776D0000-memory.dmp
    Filesize

    1.5MB

  • memory/1708-76-0x00000000004BF77D-mapping.dmp
  • memory/1708-82-0x0000000000400000-0x0000000000471000-memory.dmp
    Filesize

    452KB

  • memory/1708-83-0x0000000000400000-0x00000000004E2000-memory.dmp
    Filesize

    904KB

  • memory/1708-84-0x0000000077370000-0x0000000077519000-memory.dmp
    Filesize

    1.7MB

  • memory/1708-86-0x0000000074710000-0x0000000074CBB000-memory.dmp
    Filesize

    5.7MB

  • memory/1708-87-0x00000000002B0000-0x00000000002C8000-memory.dmp
    Filesize

    96KB

  • memory/1708-88-0x0000000074710000-0x0000000074CBB000-memory.dmp
    Filesize

    5.7MB

  • memory/1920-59-0x0000000000000000-mapping.dmp