Overview

overview

10

Static

static

10

4df93d8183...8e.exe

windows7_x64

10

4df93d8183...8e.exe

windows10_x64

10

Analysis

  • max time kernel
    146s
  • max time network
    155s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    26-01-2022 15:33

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General

  • Target

    4df93d81835ebe38c0cc5e7ff06c5edbb04993e05bb8792866272d022596ad8e.exe

  • Size

    19KB

  • MD5

    8cdf4af6c295da278178651186da9347

  • SHA1

    4edd98af3bb46ad5484f97c2470d8ec2a53018ab

  • SHA256

    4df93d81835ebe38c0cc5e7ff06c5edbb04993e05bb8792866272d022596ad8e

  • SHA512

    d8cbffd7aea77a7ce4554f5d72c29a15ab608dd06e481fce161ea9cfa5f91e5e1a9682827f0dc41a22e374ccf09ff8c6b2792eb8ad67575b00d11cff0d4f6b90

Score
10/10
nwormdownloaderworm

Malware Config

Extracted

Family

nworm

Version

v0.3.8

C2

24.101.169.101:4782

192.168.1.20:4782
Mutex

85224873

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 behavior: EnumeratesProcesses 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4df93d81835ebe38c0cc5e7ff06c5edbb04993e05bb8792866272d022596ad8e.exe
    "C:\Users\Admin\AppData\Local\Temp\4df93d81835ebe38c0cc5e7ff06c5edbb04993e05bb8792866272d022596ad8e.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2660
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /sc ONLOGON /RL HIGHEST /tn "'NTLDR.exe"' /tr "'C:\Users\Admin\AppData\Roaming\NTLDR.exe"'
      2⤵
      • Creates scheduled task(s)
      PID:3968
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp54D3.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1696
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:3372
      • C:\Users\Admin\AppData\Roaming\NTLDR.exe
        "C:\Users\Admin\AppData\Roaming\NTLDR.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1748

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp54D3.tmp.bat
    MD5

    8553ab53fe91e9da95da6ce8b428c788

    SHA1

    d01881b782a6c7c14fd026b45bf7ede835a839ed

    SHA256

    666f2deed77b41dcd7f2e4e0a8ad66df62e4e762bf49d68b767ba12f8b83ee91

    SHA512

    ab3b705d5ee1b2c2648b71eaca7cf8b4c6b49266eb3049d6958dec1aebda070ba5a77f9a38c028ad4eebb543e285a9ef1090b8072c707078366a4b5d31bf443b

    Download Submit
  • C:\Users\Admin\AppData\Roaming\NTLDR.exe
    MD5

    b9b478296f273d8e8b04e8f0385eff1c

    SHA1

    3cf7e2f4711394f6603dead2457379d2e6c0897e

    SHA256

    d63d1fbffd40c9d2e44cf2653a61f0231953c299862c05ed19c878aaaa5e696f

    SHA512

    75797dde22b0ef972b7403883644e9cae0776ae38ebbebef8c326a0c5a465af5bb43db92c5f0bd7f050b1d2c5fa014d7542e989bd3db1368ec2a79eda70384ca

    Download Submit
  • C:\Users\Admin\AppData\Roaming\NTLDR.exe
    MD5

    b9b478296f273d8e8b04e8f0385eff1c

    SHA1

    3cf7e2f4711394f6603dead2457379d2e6c0897e

    SHA256

    d63d1fbffd40c9d2e44cf2653a61f0231953c299862c05ed19c878aaaa5e696f

    SHA512

    75797dde22b0ef972b7403883644e9cae0776ae38ebbebef8c326a0c5a465af5bb43db92c5f0bd7f050b1d2c5fa014d7542e989bd3db1368ec2a79eda70384ca

    Download Submit
  • memory/1748-121-0x000000001AE90000-0x000000001AE92000-memory.dmp
    Filesize

    8KB

    Download
  • memory/2660-116-0x0000000000C10000-0x0000000000C1C000-memory.dmp
    Filesize

    48KB

    Download
  • memory/2660-117-0x000000001B8A0000-0x000000001B8A2000-memory.dmp
    Filesize

    8KB

    Download