Analysis

  • max time kernel
    146s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-04-2024 08:49

General

  • Target

    Document_BT24PDF.exe

  • Size

    822KB

  • MD5

    7c1be3bb77ce7fecad1e6d142db95fbf

  • SHA1

    63c170cebb0e1ad1104897e8837bf14eb5c08cbd

  • SHA256

    187cdd0639eb10e50f060de4cb487920a65628104f66a0aeb12c5404a55fe298

  • SHA512

    74df0f90d3d92bd0993e4d519105d327c725cf4c10bddb57cbf6a87f10cd7ef2081830813d3ca2b3a9c80560f67808b13d7c5d3c24535d1ed4f45b4ceb9037f2

  • SSDEEP

    12288:mecSSWLU423D7R+5vmVfa4NQDOYyTjTtmJzOHZ+vuF1HXSQoro36nzhdGjKqAXzC:4zWL67R+unuDJ+ssHgu7CQoW6NGqmIS

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.hdconstruct.ro/
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    5R)XZ2Xqis2HZ7p[d6+Oe!0i^C85CQ]uD68jNN@ossy~wH-(ie^9O2(001174?skX%ouFto

Signatures

  • AgentTesla

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

  • AgentTesla payload 1 IoCs
  • Obfuscated with Agile.Net obfuscator 1 IoCs

    Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

  • 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 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Document_BT24PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\Document_BT24PDF.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3340
    • C:\Users\Admin\AppData\Local\Temp\Document_BT24PDF.exe
      "C:\Users\Admin\AppData\Local\Temp\Document_BT24PDF.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:3988

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Document_BT24PDF.exe.log

    Filesize

    1KB

    MD5

    285b29c5996aba555085ba399ff77e20

    SHA1

    8883f82fda1392fdb4e69a5bd5eee8ffdfc21af1

    SHA256

    496fe895cbf117cdad4087accd11c60e3dcd682c579d954e8d69429fb2b613e1

    SHA512

    740f183b3ba5347e2b4860260f3d34cab6e2d509dfa5b2ba190a6c46650d57cdc8ab4c5535f4b29f09fc9c607bdea4b0ba49b6d3e6332b094b24c7ba2e18357a

  • memory/3340-12-0x0000000005720000-0x0000000005730000-memory.dmp

    Filesize

    64KB

  • memory/3340-8-0x0000000006950000-0x00000000069B6000-memory.dmp

    Filesize

    408KB

  • memory/3340-11-0x0000000075000000-0x00000000757B0000-memory.dmp

    Filesize

    7.7MB

  • memory/3340-4-0x00000000051F0000-0x0000000005282000-memory.dmp

    Filesize

    584KB

  • memory/3340-5-0x0000000005290000-0x00000000055E4000-memory.dmp

    Filesize

    3.3MB

  • memory/3340-6-0x0000000005720000-0x0000000005730000-memory.dmp

    Filesize

    64KB

  • memory/3340-7-0x0000000005770000-0x0000000005798000-memory.dmp

    Filesize

    160KB

  • memory/3340-19-0x0000000075000000-0x00000000757B0000-memory.dmp

    Filesize

    7.7MB

  • memory/3340-9-0x0000000006920000-0x0000000006942000-memory.dmp

    Filesize

    136KB

  • memory/3340-13-0x00000000073E0000-0x00000000073F4000-memory.dmp

    Filesize

    80KB

  • memory/3340-3-0x00000000057A0000-0x0000000005D44000-memory.dmp

    Filesize

    5.6MB

  • memory/3340-2-0x00000000050F0000-0x000000000518C000-memory.dmp

    Filesize

    624KB

  • memory/3340-10-0x0000000005720000-0x0000000005730000-memory.dmp

    Filesize

    64KB

  • memory/3340-14-0x0000000009A00000-0x0000000009A06000-memory.dmp

    Filesize

    24KB

  • memory/3340-0-0x0000000000600000-0x00000000006D4000-memory.dmp

    Filesize

    848KB

  • memory/3340-1-0x0000000075000000-0x00000000757B0000-memory.dmp

    Filesize

    7.7MB

  • memory/3988-24-0x0000000006B30000-0x0000000006B3A000-memory.dmp

    Filesize

    40KB

  • memory/3988-18-0x0000000075000000-0x00000000757B0000-memory.dmp

    Filesize

    7.7MB

  • memory/3988-20-0x0000000005B70000-0x0000000005B88000-memory.dmp

    Filesize

    96KB

  • memory/3988-21-0x0000000075000000-0x00000000757B0000-memory.dmp

    Filesize

    7.7MB

  • memory/3988-22-0x0000000005630000-0x0000000005640000-memory.dmp

    Filesize

    64KB

  • memory/3988-23-0x0000000005510000-0x0000000005560000-memory.dmp

    Filesize

    320KB

  • memory/3988-15-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB