Analysis

  • max time kernel
    139s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-12-2023 02:22

General

  • Target

    Nlzteo.exe

  • Size

    193KB

  • MD5

    b69f2cdbf28652571e762f9aac158b50

  • SHA1

    2d10897a4446c1f64d5859140a83d516b3ffc358

  • SHA256

    d82b131f63b7421b9de90ad8ac7a793d369996f1e16abcda35513fd06ca8d300

  • SHA512

    d4e5f9baaed7a2b151d6e10c79de959d0a322d21e62e3a556fc9c5f0e763a4ef92e9e0c604108c9349af4ce80408890b547c82a95710b768e3169279477dbaac

  • SSDEEP

    768:npOCUM461xGqTpjk6rNj8Nyo4LNCaCqJ6+rLnx+:pOnMz1IqTpreNyDNJCE8

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    meka.ldc.lv
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    DJj8Mza7MM

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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.

  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Nlzteo.exe
    "C:\Users\Admin\AppData\Local\Temp\Nlzteo.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1848
    • C:\Users\Admin\AppData\Local\Temp\Nlzteo.exe
      C:\Users\Admin\AppData\Local\Temp\Nlzteo.exe
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4324

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    1KB

    MD5

    489c7565f9b029ba9fadff774073cc98

    SHA1

    56c05089b33ee7e7dfa9e6a2d098164efd8e1150

    SHA256

    10bf6242da02dad8b2e1208b9dab9a7303cf986320e05e5ef20b99c9b71326d4

    SHA512

    ddea09c011a8d4f85905842c2f34c98add0110a0b6b3b2709718c3614a2c42dec5f4f5d5b9442cfd3c6c23e9a90c8c0b25c14c3dbd42faea9cc8dd232cace1ac

  • memory/1848-5-0x0000000006710000-0x0000000006750000-memory.dmp

    Filesize

    256KB

  • memory/1848-1-0x0000000074560000-0x0000000074D10000-memory.dmp

    Filesize

    7.7MB

  • memory/1848-13-0x0000000074560000-0x0000000074D10000-memory.dmp

    Filesize

    7.7MB

  • memory/1848-4-0x00000000066B0000-0x00000000066F2000-memory.dmp

    Filesize

    264KB

  • memory/1848-2-0x0000000005260000-0x0000000005270000-memory.dmp

    Filesize

    64KB

  • memory/1848-6-0x0000000006760000-0x00000000067AC000-memory.dmp

    Filesize

    304KB

  • memory/1848-7-0x0000000074560000-0x0000000074D10000-memory.dmp

    Filesize

    7.7MB

  • memory/1848-8-0x0000000005260000-0x0000000005270000-memory.dmp

    Filesize

    64KB

  • memory/1848-9-0x0000000006EE0000-0x0000000007484000-memory.dmp

    Filesize

    5.6MB

  • memory/1848-0-0x0000000000950000-0x0000000000986000-memory.dmp

    Filesize

    216KB

  • memory/1848-3-0x00000000065E0000-0x000000000663A000-memory.dmp

    Filesize

    360KB

  • memory/4324-15-0x00000000057F0000-0x0000000005800000-memory.dmp

    Filesize

    64KB

  • memory/4324-14-0x0000000074560000-0x0000000074D10000-memory.dmp

    Filesize

    7.7MB

  • memory/4324-16-0x0000000005750000-0x00000000057B6000-memory.dmp

    Filesize

    408KB

  • memory/4324-10-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/4324-17-0x0000000006E90000-0x0000000006EE0000-memory.dmp

    Filesize

    320KB

  • memory/4324-18-0x0000000006F80000-0x000000000701C000-memory.dmp

    Filesize

    624KB

  • memory/4324-19-0x0000000007020000-0x00000000070B2000-memory.dmp

    Filesize

    584KB

  • memory/4324-20-0x0000000006F30000-0x0000000006F3A000-memory.dmp

    Filesize

    40KB

  • memory/4324-21-0x0000000074560000-0x0000000074D10000-memory.dmp

    Filesize

    7.7MB

  • memory/4324-22-0x00000000057F0000-0x0000000005800000-memory.dmp

    Filesize

    64KB