Analysis

  • max time kernel
    142s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-12-2023 08:03

General

  • Target

    KNP10WS150RJB 5K.exe

  • Size

    812KB

  • MD5

    73c4d511b769f0869c87b5d4621f2a81

  • SHA1

    a8928f94fc09b95a019ca5cc4a7f3c0f89966684

  • SHA256

    e71a07f99b82d89d7dcd21041055ec628b6c8855af5f44f954354dee5fa6fb74

  • SHA512

    9d886ebccc71c4e060fafdcf2d736fea2ec391495935c20fa5542f2fb7ec045587cbe25f408f239be7616c6b027e7590ee5ee121306952514ed6e0586f39d8d4

  • SSDEEP

    24576:/34/up+pJBv8nNX2ohpy+1AphoGJLYQgll7Bq:/38PJ2NziyAphoGxYZl

Malware Config

Extracted

Credentials

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 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\KNP10WS150RJB 5K.exe
    "C:\Users\Admin\AppData\Local\Temp\KNP10WS150RJB 5K.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4092
    • C:\Users\Admin\AppData\Local\Temp\KNP10WS150RJB 5K.exe
      "C:\Users\Admin\AppData\Local\Temp\KNP10WS150RJB 5K.exe"
      2⤵
        PID:4164
      • C:\Users\Admin\AppData\Local\Temp\KNP10WS150RJB 5K.exe
        "C:\Users\Admin\AppData\Local\Temp\KNP10WS150RJB 5K.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4168

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\KNP10WS150RJB 5K.exe.log

      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • memory/4092-10-0x00000000061F0000-0x000000000628C000-memory.dmp

      Filesize

      624KB

    • memory/4092-15-0x00000000750D0000-0x0000000075880000-memory.dmp

      Filesize

      7.7MB

    • memory/4092-9-0x0000000006590000-0x000000000660A000-memory.dmp

      Filesize

      488KB

    • memory/4092-4-0x0000000002A80000-0x0000000002A90000-memory.dmp

      Filesize

      64KB

    • memory/4092-5-0x0000000004FF0000-0x0000000004FFA000-memory.dmp

      Filesize

      40KB

    • memory/4092-6-0x00000000054D0000-0x00000000054E8000-memory.dmp

      Filesize

      96KB

    • memory/4092-7-0x00000000060D0000-0x00000000060D8000-memory.dmp

      Filesize

      32KB

    • memory/4092-8-0x00000000060E0000-0x00000000060EA000-memory.dmp

      Filesize

      40KB

    • memory/4092-3-0x0000000004F50000-0x0000000004FE2000-memory.dmp

      Filesize

      584KB

    • memory/4092-0-0x00000000004A0000-0x0000000000572000-memory.dmp

      Filesize

      840KB

    • memory/4092-1-0x00000000750D0000-0x0000000075880000-memory.dmp

      Filesize

      7.7MB

    • memory/4092-2-0x0000000005500000-0x0000000005AA4000-memory.dmp

      Filesize

      5.6MB

    • memory/4168-14-0x00000000750D0000-0x0000000075880000-memory.dmp

      Filesize

      7.7MB

    • memory/4168-11-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/4168-16-0x00000000052A0000-0x00000000052B0000-memory.dmp

      Filesize

      64KB

    • memory/4168-17-0x0000000005320000-0x0000000005386000-memory.dmp

      Filesize

      408KB

    • memory/4168-18-0x0000000006870000-0x00000000068C0000-memory.dmp

      Filesize

      320KB

    • memory/4168-19-0x00000000750D0000-0x0000000075880000-memory.dmp

      Filesize

      7.7MB

    • memory/4168-20-0x00000000052A0000-0x00000000052B0000-memory.dmp

      Filesize

      64KB