Analysis

  • max time kernel
    149s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    06-11-2024 15:26

General

  • Target

    648ee80543d70f070c497309e4c7ce090254374da938799074de93bdaafaff5a.exe

  • Size

    1.1MB

  • MD5

    816b7984251ee4c846a7f0d6160624e2

  • SHA1

    be82357d711260a412103e7fde8785febd060974

  • SHA256

    648ee80543d70f070c497309e4c7ce090254374da938799074de93bdaafaff5a

  • SHA512

    81e035b9ffd16b8a31ab23f1d2bf621954cd42b8c0fdf0daffbac12f1964d41d949af68a06259e27bcc8163221cbfdb05f300eca7151ff901a2bcd36ca8b7a4c

  • SSDEEP

    24576:G4nhDoAFAcvHumQbl7nu5v12dUC5YpdBNFQWEZNXLGQ7WczkxFnfbP9:G+hkJcvfyl7nu5vaUCMd5iNXKQKczg

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Agenttesla family
  • Guloader family
  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Loads dropped DLL 1 IoCs
  • 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.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 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 NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\648ee80543d70f070c497309e4c7ce090254374da938799074de93bdaafaff5a.exe
    "C:\Users\Admin\AppData\Local\Temp\648ee80543d70f070c497309e4c7ce090254374da938799074de93bdaafaff5a.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2440
    • C:\Users\Admin\AppData\Local\Temp\648ee80543d70f070c497309e4c7ce090254374da938799074de93bdaafaff5a.exe
      "C:\Users\Admin\AppData\Local\Temp\648ee80543d70f070c497309e4c7ce090254374da938799074de93bdaafaff5a.exe"
      2⤵
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2312

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\Temp\nsjA4E9.tmp\System.dll

    Filesize

    12KB

    MD5

    d6f54d2cefdf58836805796f55bfc846

    SHA1

    b980addc1a755b968dd5799179d3b4f1c2de9d2d

    SHA256

    f917aef484d1fbb4d723b2e2d3045cb6f5f664e61fbb3d5c577bd1c215de55d9

    SHA512

    ce67da936a93d46ef7e81abc8276787c82fd844c03630ba18afc3528c7e420c3228bfe82aeda083bb719f2d1314afae913362abd1e220cb364606519690d45db

  • memory/2312-20-0x0000000077910000-0x0000000077AB9000-memory.dmp

    Filesize

    1.7MB

  • memory/2312-22-0x0000000000820000-0x0000000001882000-memory.dmp

    Filesize

    16.4MB

  • memory/2312-43-0x0000000000820000-0x0000000001882000-memory.dmp

    Filesize

    16.4MB

  • memory/2312-44-0x0000000000820000-0x0000000000860000-memory.dmp

    Filesize

    256KB

  • memory/2440-16-0x0000000003B50000-0x0000000006AAE000-memory.dmp

    Filesize

    47.4MB

  • memory/2440-18-0x0000000077910000-0x0000000077AB9000-memory.dmp

    Filesize

    1.7MB

  • memory/2440-17-0x0000000077911000-0x0000000077A12000-memory.dmp

    Filesize

    1.0MB

  • memory/2440-21-0x0000000003B50000-0x0000000006AAE000-memory.dmp

    Filesize

    47.4MB

  • memory/2440-19-0x0000000003B50000-0x0000000006AAE000-memory.dmp

    Filesize

    47.4MB