Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    04-02-2024 20:07

General

  • Target

    90091c8c9c69b12fe47cee45e5090bf9.exe

  • Size

    1.1MB

  • MD5

    90091c8c9c69b12fe47cee45e5090bf9

  • SHA1

    e7faaf6695ac2c30dbda38e576e6f50eaa04127a

  • SHA256

    7d900c842228164a450c070b49db71709f73aab97f548167e79742f505e2edc7

  • SHA512

    d772aeb2fc7aac1c30f0e5b4fd782b523d56c3875e40c612d24fa19e0023cee960f149b633fc98c2c2785e13d806a1fb4d32b7f29a605034acbfec54c2ebdabb

  • SSDEEP

    24576:e4S/d3uKzksuksSmmRBhZfyrBvEiomcy8jh8N6ZNXZ:dKLmCZMBvEirc+N6ZNX

Score
10/10

Malware Config

Extracted

Family

limerat

Wallets

bc1q5746qkzdr628cmq4swa02lpu2mk69t0pdxdgzs

Attributes
  • aes_key

    Wealth1000$

  • antivm

    false

  • c2_url

    https://pastebin.com/raw/LF04hVta

  • delay

    3

  • download_payload

    false

  • install

    false

  • install_name

    Wservices.exe

  • main_folder

    Temp

  • pin_spread

    false

  • sub_folder

    \

  • usb_spread

    true

Extracted

Family

limerat

Attributes
  • antivm

    false

  • c2_url

    https://pastebin.com/raw/LF04hVta

  • download_payload

    false

  • install

    false

  • pin_spread

    false

  • usb_spread

    false

Signatures

  • LimeRAT

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

  • CustAttr .NET packer 1 IoCs

    Detects CustAttr .NET packer in memory.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • 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 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\90091c8c9c69b12fe47cee45e5090bf9.exe
    "C:\Users\Admin\AppData\Local\Temp\90091c8c9c69b12fe47cee45e5090bf9.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:944
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pqfTsGmCOXK" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA8AE.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2624
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2652

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\TarDB57.tmp

    Filesize

    171KB

    MD5

    9c0c641c06238516f27941aa1166d427

    SHA1

    64cd549fb8cf014fcd9312aa7a5b023847b6c977

    SHA256

    4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

    SHA512

    936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

  • C:\Users\Admin\AppData\Local\Temp\tmpA8AE.tmp

    Filesize

    1KB

    MD5

    9340b01f01b2c3dde20f1a013d2bb036

    SHA1

    c41f3bdb7ea6247a684e48e7cf4560f357dc9e01

    SHA256

    4e24b18cb48c395da2380e6e2dabbb1babd33d5604d87d6e667f77fdd2845024

    SHA512

    ca367c13f46dfef09286fd428ccba08f94ed16756c7705039f1f4abbabc68eade236b595bf114e6173fae4a80d3058b0d6fc60fde3283c09cf356b760c12748a

  • memory/944-1-0x0000000073FD0000-0x00000000746BE000-memory.dmp

    Filesize

    6.9MB

  • memory/944-2-0x0000000004E30000-0x0000000004E70000-memory.dmp

    Filesize

    256KB

  • memory/944-3-0x0000000000310000-0x0000000000322000-memory.dmp

    Filesize

    72KB

  • memory/944-4-0x0000000073FD0000-0x00000000746BE000-memory.dmp

    Filesize

    6.9MB

  • memory/944-5-0x0000000004E30000-0x0000000004E70000-memory.dmp

    Filesize

    256KB

  • memory/944-6-0x0000000005730000-0x00000000057AE000-memory.dmp

    Filesize

    504KB

  • memory/944-7-0x0000000000500000-0x000000000050C000-memory.dmp

    Filesize

    48KB

  • memory/944-26-0x0000000073FD0000-0x00000000746BE000-memory.dmp

    Filesize

    6.9MB

  • memory/944-0-0x0000000000350000-0x0000000000476000-memory.dmp

    Filesize

    1.1MB

  • memory/2652-27-0x0000000073FD0000-0x00000000746BE000-memory.dmp

    Filesize

    6.9MB

  • memory/2652-21-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/2652-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2652-17-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/2652-15-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/2652-13-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/2652-28-0x0000000004CC0000-0x0000000004D00000-memory.dmp

    Filesize

    256KB

  • memory/2652-23-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/2652-25-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/2652-65-0x0000000073FD0000-0x00000000746BE000-memory.dmp

    Filesize

    6.9MB

  • memory/2652-66-0x0000000004CC0000-0x0000000004D00000-memory.dmp

    Filesize

    256KB