Overview

overview

10

Static

static

10

6eccc9b1ec...9c.exe

windows7_x64

10

6eccc9b1ec...9c.exe

windows10_x64

10

Analysis

  • max time kernel
    135s
  • max time network
    151s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    26/01/2022, 15:33

Sharing

Copy URL Twitter E-mail
Report Analysis Logs

General

  • Target
    6eccc9b1ec733f8e229e2b523942c8947208da6625f251f64e10680228f42f9c.exe
  • Size 17KB
  • Sample220126-szn4vafbd2
  • SHA256 6eccc9b1ec733f8e229e2b523942c8947208da6625f251f64e10680228f42f9c
  • MD5 SHA1 SHA512
Score
10/10
nwormdownloaderworm

Malware Config

Extracted

Family

  • nworm

Version

  • v0.3.8

C2

  • updateservice.linkpc.net:81

  • ainda.dyndns.org:81

Mutex

  • debff03b

Signatures

  • NWorm

    A TrickBot module used to propagate to vulnerable domain controllers.

    wormdownloadernworm
  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • Delays execution with timeout.exe 1 IoCs
    evasion
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6eccc9b1ec733f8e229e2b523942c8947208da6625f251f64e10680228f42f9c.exe
    "C:\Users\Admin\AppData\Local\Temp\6eccc9b1ec733f8e229e2b523942c8947208da6625f251f64e10680228f42f9c.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3532
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /sc ONLOGON /RL HIGHEST /tn "'sql.exe"' /tr "'C:\Users\Admin\AppData\Roaming\sql.exe"'
      2⤵
      • Creates scheduled task(s)
      PID:3648
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp6CDF.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4036
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:2396
      • C:\Users\Admin\AppData\Roaming\sql.exe
        "C:\Users\Admin\AppData\Roaming\sql.exe"
        3⤵
        • Executes dropped EXE
        PID:2052

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/2052-120-0x000000001AF90000-0x000000001AF92000-memory.dmp
        Download

        memory/3532-116-0x0000000000870000-0x000000000087A000-memory.dmp
        Download