Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    20-12-2023 14:09

General

  • Target

    c23d849b84bb757dc19ccd19a7c7c6c1.exe

  • Size

    64KB

  • MD5

    c23d849b84bb757dc19ccd19a7c7c6c1

  • SHA1

    6f0eaa46dbfe8a7ff5596414118c0ba52a64b16d

  • SHA256

    8b81b385a2646033343216dcdfd40463b127f36a0708dfcdc189e571d2add35f

  • SHA512

    a16195078aad21dc47fe48ed514612dcc6af4e39fc2680d7095b2105a3fb9856e0022ab448a0a150b80167204d58f7d74c29793e9de1f31ef23f742650ce28c8

  • SSDEEP

    768:cWvDGHFPHc5b3U+KOT/NO1lgA9SkuTdIbf+iK6shRoJv0wtVbG+HdyJW5wmy3OOP:cZlPg3U+jT+KGq6shR8vHD5wi4OOP

Score
10/10

Malware Config

Extracted

Family

limerat

Attributes
  • antivm

    false

  • c2_url

    https://pastebin.com/raw/NzAFK8As

  • download_payload

    false

  • install

    false

  • pin_spread

    false

  • usb_spread

    false

Signatures

  • LimeRAT

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

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

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c23d849b84bb757dc19ccd19a7c7c6c1.exe
    "C:\Users\Admin\AppData\Local\Temp\c23d849b84bb757dc19ccd19a7c7c6c1.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:3040
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\Sys\WindowsServices.exe'"
      2⤵
      • Creates scheduled task(s)
      PID:2856
    • C:\Users\Admin\Sys\WindowsServices.exe
      "C:\Users\Admin\Sys\WindowsServices.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2568

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab7497.tmp

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\Tar7536.tmp

    Filesize

    171KB

    MD5

    9c0c641c06238516f27941aa1166d427

    SHA1

    64cd549fb8cf014fcd9312aa7a5b023847b6c977

    SHA256

    4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

    SHA512

    936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

  • \Users\Admin\Sys\WindowsServices.exe

    Filesize

    64KB

    MD5

    c23d849b84bb757dc19ccd19a7c7c6c1

    SHA1

    6f0eaa46dbfe8a7ff5596414118c0ba52a64b16d

    SHA256

    8b81b385a2646033343216dcdfd40463b127f36a0708dfcdc189e571d2add35f

    SHA512

    a16195078aad21dc47fe48ed514612dcc6af4e39fc2680d7095b2105a3fb9856e0022ab448a0a150b80167204d58f7d74c29793e9de1f31ef23f742650ce28c8

  • memory/2568-14-0x0000000000A20000-0x0000000000A34000-memory.dmp

    Filesize

    80KB

  • memory/2568-13-0x0000000074C50000-0x000000007533E000-memory.dmp

    Filesize

    6.9MB

  • memory/2568-16-0x00000000049D0000-0x0000000004A10000-memory.dmp

    Filesize

    256KB

  • memory/2568-51-0x0000000074C50000-0x000000007533E000-memory.dmp

    Filesize

    6.9MB

  • memory/2568-52-0x00000000049D0000-0x0000000004A10000-memory.dmp

    Filesize

    256KB

  • memory/3040-0-0x0000000000A40000-0x0000000000A54000-memory.dmp

    Filesize

    80KB

  • memory/3040-1-0x0000000074C50000-0x000000007533E000-memory.dmp

    Filesize

    6.9MB

  • memory/3040-3-0x00000000022C0000-0x0000000002300000-memory.dmp

    Filesize

    256KB

  • memory/3040-15-0x0000000074C50000-0x000000007533E000-memory.dmp

    Filesize

    6.9MB