Analysis

  • max time kernel
    148s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    06-11-2024 09:29

General

  • Target

    10029384756.exe

  • Size

    842KB

  • MD5

    8baafa32d7de3e0ba360e8df8c95e509

  • SHA1

    65555b69b67f242a68c83a1735d7764bcbb417a0

  • SHA256

    45a450142e00de4a60676d56cee58b35e2c59c0af562c7740cfc7c42c2175ba1

  • SHA512

    ce7b7897a037269e646f7f71d00100c463582f3b786f90b68916b4dd5ff9e60e3d85fdcf3cb1ecbef1de9c4ba21fb9a4770b50b97d8a3c0b6735a2062274d0d4

  • SSDEEP

    24576:lWO703h0R6ZL7h1sb1YDij7wt54gjOfHb:ookh0u91SYDrjc

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://mail.hearing-vision.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    LILKOOLL14!

Signatures

  • AgentTesla

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

  • Agenttesla family
  • 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.

  • Looks up external IP address via web service 1 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 1 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 WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\10029384756.exe
    "C:\Users\Admin\AppData\Local\Temp\10029384756.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:2016
    • C:\Users\Admin\AppData\Local\Temp\10029384756.exe
      "C:\Users\Admin\AppData\Local\Temp\10029384756.exe"
      2⤵
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1248

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\sindsoprrte.ini

    Filesize

    40B

    MD5

    34b6486be479025fb25d832fa829a153

    SHA1

    a7e5f7f6cfc1004b46181c718a250f603a19ea1c

    SHA256

    bc3788143aae61e43980462fbb660958db120cf7975a990ce5598bdf80dcf5f3

    SHA512

    71494342be8989348f9df287a8e6fdb3b850d9d3f6d1f106f2ca75d241da141514ea23530e02d38bee700217792ed18b425f0e143de31731b7858acfc0e07e30

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

    Filesize

    11KB

    MD5

    fbe295e5a1acfbd0a6271898f885fe6a

    SHA1

    d6d205922e61635472efb13c2bb92c9ac6cb96da

    SHA256

    a1390a78533c47e55cc364e97af431117126d04a7faed49390210ea3e89dd0e1

    SHA512

    2cb596971e504eaf1ce8e3f09719ebfb3f6234cea5ca7b0d33ec7500832ff4b97ec2bbe15a1fbf7e6a5b02c59db824092b9562cd8991f4d027feab6fd3177b06

  • memory/1248-277-0x00000000007D0000-0x0000000001832000-memory.dmp

    Filesize

    16.4MB

  • memory/1248-278-0x00000000007D0000-0x0000000000812000-memory.dmp

    Filesize

    264KB