Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    20-12-2023 16:00

General

  • Target

    e093e99088a1e13e12e64150778ce72c.exe

  • Size

    28KB

  • MD5

    e093e99088a1e13e12e64150778ce72c

  • SHA1

    bd109b4eea2b8804cfc7b1351ad79a6d1f044dd9

  • SHA256

    c1bfda3a4ac6fd27e2947c4ad863ba554cb25dff909fe26ce739a50c2752a0a3

  • SHA512

    16a5f5dfaad54883aad6e128650afbac47e58e55de6a0627c456c00b648db16fc9e2e8bfb525c81e7e5ac0c737e3df2fba5ea174ecb433b3bd2c24cb969fd8bb

  • SSDEEP

    384:jECWna6X7ehaDgcmfKHDMzCJojHYvnjvD6Nr/uJEnjJUDxrlr3ZLPikbMgntPTr3:ueEcWHDmMlDQNdUdB3zbVt8Jijykb

Score
10/10

Malware Config

Extracted

Family

limerat

Wallets

1KR7iRAoTeUdZ4KiiASRcdcbpMv2yi5wJ7

Attributes
  • aes_key

    janonn

  • antivm

    false

  • c2_url

    https://pastebin.com/raw/2hFCdHWq

  • delay

    3

  • download_payload

    false

  • install

    true

  • install_name

    WindowsUpdate.exe

  • main_folder

    UserProfile

  • pin_spread

    false

  • sub_folder

    \WindowsUpdate\

  • usb_spread

    false

Extracted

Family

limerat

Attributes
  • antivm

    false

  • c2_url

    https://pastebin.com/raw/2hFCdHWq

  • 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 4 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 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e093e99088a1e13e12e64150778ce72c.exe
    "C:\Users\Admin\AppData\Local\Temp\e093e99088a1e13e12e64150778ce72c.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1708
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\WindowsUpdate\WindowsUpdate.exe'"
      2⤵
      • Creates scheduled task(s)
      PID:2852
    • C:\Users\Admin\WindowsUpdate\WindowsUpdate.exe
      "C:\Users\Admin\WindowsUpdate\WindowsUpdate.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of AdjustPrivilegeToken
      PID:2616

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\CabFDB3.tmp

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\TarFE14.tmp

    Filesize

    171KB

    MD5

    9c0c641c06238516f27941aa1166d427

    SHA1

    64cd549fb8cf014fcd9312aa7a5b023847b6c977

    SHA256

    4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

    SHA512

    936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

  • \Users\Admin\WindowsUpdate\WindowsUpdate.exe

    Filesize

    28KB

    MD5

    e093e99088a1e13e12e64150778ce72c

    SHA1

    bd109b4eea2b8804cfc7b1351ad79a6d1f044dd9

    SHA256

    c1bfda3a4ac6fd27e2947c4ad863ba554cb25dff909fe26ce739a50c2752a0a3

    SHA512

    16a5f5dfaad54883aad6e128650afbac47e58e55de6a0627c456c00b648db16fc9e2e8bfb525c81e7e5ac0c737e3df2fba5ea174ecb433b3bd2c24cb969fd8bb

  • memory/1708-0-0x0000000001370000-0x000000000137C000-memory.dmp

    Filesize

    48KB

  • memory/1708-1-0x00000000747B0000-0x0000000074E9E000-memory.dmp

    Filesize

    6.9MB

  • memory/1708-2-0x00000000747B0000-0x0000000074E9E000-memory.dmp

    Filesize

    6.9MB

  • memory/1708-5-0x0000000004C10000-0x0000000004C50000-memory.dmp

    Filesize

    256KB

  • memory/1708-12-0x00000000747B0000-0x0000000074E9E000-memory.dmp

    Filesize

    6.9MB

  • memory/2616-16-0x00000000002A0000-0x00000000002AC000-memory.dmp

    Filesize

    48KB