Analysis

  • max time kernel
    145s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    01-11-2024 11:29

General

  • Target

    Quote_220072.exe

  • Size

    1.1MB

  • MD5

    ac900546c8bf5b3be3184502d0d2d7ba

  • SHA1

    6427b2e160082bdb6a5b0213a3de348986f31530

  • SHA256

    23df64fa762b5942d08dc6bf6f5afc75fc932519a96070af492e237b5483747f

  • SHA512

    4b6bcd3c9413177629668f37160372b65c598a4c5c2ab7eae0905074761e49105b6e954fcfdccae11501120fba4a2dd59d477eab76911a6dd94e184bd7afeb56

  • SSDEEP

    24576:T4nhDoAFBOCmg1OJnkFWsksVBNF/ZNXLGQ7WczkxFnfbP97:T+hkcOCm+OWFW+V5BNXKQKczgt

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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • 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: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Quote_220072.exe
    "C:\Users\Admin\AppData\Local\Temp\Quote_220072.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:2564
    • C:\Users\Admin\AppData\Local\Temp\Quote_220072.exe
      "C:\Users\Admin\AppData\Local\Temp\Quote_220072.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2928

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\Temp\nsoCA34.tmp\System.dll

    Filesize

    12KB

    MD5

    d6f54d2cefdf58836805796f55bfc846

    SHA1

    b980addc1a755b968dd5799179d3b4f1c2de9d2d

    SHA256

    f917aef484d1fbb4d723b2e2d3045cb6f5f664e61fbb3d5c577bd1c215de55d9

    SHA512

    ce67da936a93d46ef7e81abc8276787c82fd844c03630ba18afc3528c7e420c3228bfe82aeda083bb719f2d1314afae913362abd1e220cb364606519690d45db

  • memory/2564-16-0x00000000034C0000-0x0000000005A88000-memory.dmp

    Filesize

    37.8MB

  • memory/2564-17-0x00000000034C0000-0x0000000005A88000-memory.dmp

    Filesize

    37.8MB

  • memory/2564-18-0x0000000077821000-0x0000000077922000-memory.dmp

    Filesize

    1.0MB

  • memory/2564-19-0x0000000077820000-0x00000000779C9000-memory.dmp

    Filesize

    1.7MB

  • memory/2564-21-0x00000000034C0000-0x0000000005A88000-memory.dmp

    Filesize

    37.8MB

  • memory/2928-20-0x0000000077820000-0x00000000779C9000-memory.dmp

    Filesize

    1.7MB

  • memory/2928-41-0x0000000000820000-0x0000000001882000-memory.dmp

    Filesize

    16.4MB

  • memory/2928-42-0x0000000000820000-0x0000000001882000-memory.dmp

    Filesize

    16.4MB

  • memory/2928-43-0x0000000000820000-0x0000000000850000-memory.dmp

    Filesize

    192KB