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Analysis

  • max time kernel
    149s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    30/11/2024, 14:16

General

  • Target

    New-Client.exe

  • Size

    28KB

  • MD5

    42dd04b2c91e0b8c4b6c676c0bf067bc

  • SHA1

    8fb5c885299eb1fb4c93e76cc7172058a347c48b

  • SHA256

    18dfa73375b80be2a9651411bdd5c4735c9738af35f086f426584ee2776d9fa3

  • SHA512

    24cc5f837445c1ea3cb9c39f66186d2be23674444f6a46df296a4a0538aa5fa4bde6ad4251bc8adc74dfc5689576763e592d0713a303e8a2f7828b2bf4b34b2e

  • SSDEEP

    384:GB+Sbj6NKsHU637AHteXnmqDvDj63XjUQvDKNrCeJE3WNgtTKNnqgqoXiuQro3li:8ps0637wtexv6nQe45NDNnhqVUIj

Score
10/10

Malware Config

Extracted

Family

limerat

Attributes
  • aes_key

    ponontop

  • antivm

    false

  • c2_url

    https://pastebin.com/raw/U06jyvTy

  • delay

    3

  • download_payload

    false

  • install

    true

  • install_name

    sus.exe

  • main_folder

    AppData

  • pin_spread

    true

  • sub_folder

    \sus\

  • usb_spread

    false

Extracted

Family

limerat

Attributes
  • antivm

    false

  • c2_url

    https://pastebin.com/raw/U06jyvTy

  • download_payload

    false

  • install

    false

  • pin_spread

    false

  • usb_spread

    false

Signatures

  • LimeRAT

    Simple yet powerful RAT for Windows machines written in .NET.

  • Limerat family
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 30 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\New-Client.exe
    "C:\Users\Admin\AppData\Local\Temp\New-Client.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1616
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Roaming\sus\sus.exe'"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2752
    • C:\Users\Admin\AppData\Roaming\sus\sus.exe
      "C:\Users\Admin\AppData\Roaming\sus\sus.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2808

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Roaming\sus\sus.exe

    Filesize

    28KB

    MD5

    42dd04b2c91e0b8c4b6c676c0bf067bc

    SHA1

    8fb5c885299eb1fb4c93e76cc7172058a347c48b

    SHA256

    18dfa73375b80be2a9651411bdd5c4735c9738af35f086f426584ee2776d9fa3

    SHA512

    24cc5f837445c1ea3cb9c39f66186d2be23674444f6a46df296a4a0538aa5fa4bde6ad4251bc8adc74dfc5689576763e592d0713a303e8a2f7828b2bf4b34b2e

  • memory/1616-0-0x0000000074BFE000-0x0000000074BFF000-memory.dmp

    Filesize

    4KB

  • memory/1616-1-0x0000000000D40000-0x0000000000D4C000-memory.dmp

    Filesize

    48KB

  • memory/1616-13-0x0000000074BF0000-0x00000000752DE000-memory.dmp

    Filesize

    6.9MB

  • memory/2808-12-0x0000000000CE0000-0x0000000000CEC000-memory.dmp

    Filesize

    48KB

  • memory/2808-14-0x0000000074BF0000-0x00000000752DE000-memory.dmp

    Filesize

    6.9MB

  • memory/2808-15-0x0000000074BF0000-0x00000000752DE000-memory.dmp

    Filesize

    6.9MB

  • memory/2808-16-0x0000000074BF0000-0x00000000752DE000-memory.dmp

    Filesize

    6.9MB

  • memory/2808-17-0x0000000074BF0000-0x00000000752DE000-memory.dmp

    Filesize

    6.9MB