Overview

overview

10

Static

static

10

LB3.exe

windows7-x64

10

LB3.exe

windows10-2004-x64

10

Resubmissions

19-01-2025 12:18

250119-pg3yhaxjbs 10

26-12-2024 21:28

241226-1bawba1mcj 10

25-12-2024 16:52

241225-vdh2tayphx 10

Analysis

  • max time kernel
    122s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    19-01-2025 12:18

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General

  • Target

    LB3.exe

  • Size

    147KB

  • MD5

    67008d6538e43ec4ef57359f7ca4f15f

  • SHA1

    65078b6e640146bde300af0a6d70b91f45244343

  • SHA256

    cb43fff6739186bdf2af5d4f34624c020196616cdae86fb755bf3d250bbe9b12

  • SHA512

    9a9e281dcf6a783cb69f6ab9703af716dd304883ad1a92a17bf4498745b563b2560e4624d839cc7577776d31e22f596d821a183c4c4ec350d7fa7a8f0e44db54

  • SSDEEP

    3072:V6glyuxE4GsUPnliByocWepTN5GqoLVB5FHONF:V6gDBGpvEByocWeX/oZB7u/

Score
10/10
defense_evasiondiscoveryransomwarespywarestealer

Malware Config

Extracted

Path

C:\IoBMyuygl.README.txt

Ransom Note
~~~ RdpLocker Recode the world's fastest ransomware~~~ >>>> Your data are stolen and encrypted >>>> Info Our encryption is undetectable and we can encrypt terabytes of data in minutes. A unique public and private key is generated exclusively for you. No one else can decrypt the files we have encrypted. Our services are cheap and reliable. >>>> What guarantees that we will not deceive you? We are not a politically motivated group and we do not need anything other than your money. If you pay, we will provide you the programs for decryption and we will delete your data. If we do not give you decrypters, or we do not delete your data after payment, then nobody will pay us in the future. Therefore to us our reputation is very important. We attack the companies worldwide and there is no dissatisfied victim after payment. You can contact us using Tox messenger without registration and SMS to negotiate the price. https://tox.chat/download.html Using Tox messenger, we will never know your real name, it means your privacy is guaranteed. RdpLocker Tox ID: CE93C52BFAFA16570B9821C7D0EE7999C78475AD964ACEEF80767B653210D27E3CE6C88F61A5
URLs

https://tox.chat/download.html

Signatures

  • Renames multiple (363) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Drops desktop.ini file(s) 2 IoCs
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

    defense_evasion
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
    ransomware
  • Suspicious use of NtSetInformationThreadHideFromDebugger 5 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.

    discovery
  • Modifies Control Panel 2 IoCs
    evasion
  • Modifies registry class 5 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
    ransomware
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\LB3.exe
    "C:\Users\Admin\AppData\Local\Temp\LB3.exe"
    1⤵
    • Loads dropped DLL
    • Drops desktop.ini file(s)
    • Sets desktop wallpaper using registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1224
    • C:\ProgramData\F8EF.tmp
      "C:\ProgramData\F8EF.tmp"
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:1212
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\F8EF.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2292
  • C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\IoBMyuygl.README.txt
    1⤵
    • Opens file in notepad (likely ransom note)
    PID:1604
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x148
    1⤵
      PID:2364

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\$Recycle.Bin\S-1-5-21-312935884-697965778-3955649944-1000\BBBBBBBBBBB
      Filesize

      129B

      MD5

      3a64847cb1556c6c2a91856b872fd5dd

      SHA1

      e797b111f451d57c5a466c40bc5b60611e10d91b

      SHA256

      ea22bd7b0dc89fa08ef8d7fb8cf002dfedf9293614146b0ed8766b6f72535cf1

      SHA512

      21f94a80917a8d76b331aecc16dd9d62b98c2260f7bbf308ea4452abbc988f09955657b6b692f05b774a1d123953f5d7733bbbd1c4dcf09d2313bae0cb8450a0

      Download Submit

    • C:\IoBMyuygl.README.txt
      Filesize

      1KB

      MD5

      0fc102c3422c21c1aadfaa1a656dc970

      SHA1

      49cc540c7a5eaa4f12cacdb21e788335d535ccc0

      SHA256

      fe49a063ebe0b4154321062c1110876bab03710ab367d8a5e3dee6e75fc79029

      SHA512

      8cf822ec2d69b4f4bfdc3303b142ff21315d6e5483a98efa834d039f68a6f57e249d374d3c127a65f524123464532afa5700b4dd4808236b082f7a420a260ab0

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\DDDDDDD
      Filesize

      147KB

      MD5

      b506fd46e3c6339aa90ebb2afd6b2284

      SHA1

      41c7bbc26ea38951b8b885760a589a53bbe1c442

      SHA256

      73690621177232a70ca74eefea27146ae455bd760a6c3fd0afb0a5dc9af8433c

      SHA512

      032480a9508d7325bf0f7490ca0425767cb63b95730a89dd50b4761e34833002d4c25259a2e52bed3ed88175166c3a10a04a228c8fbd34d51d69269f69ebe88e

      Download Submit

    • F:\$RECYCLE.BIN\S-1-5-21-312935884-697965778-3955649944-1000\DDDDDDDDDDD
      Filesize

      129B

      MD5

      33cc854c4c1b649b67812c4d91ae2769

      SHA1

      e011997ef929f1b884ef35d620ab47a59cca8c5d

      SHA256

      9eb2a892b0c848cf261831ad880a5a69b08dd2a90e5ed129abe4d62e1cdbaf7a

      SHA512

      edc37042166a19f1ce91d471c05f785c1b560b40d61604715d27845c4f2a0b9f2056761592c7e653a7668ec82113a5bcd54b79b10e701c7fa31413cc392ba85a

      Download Submit

    • \ProgramData\F8EF.tmp
      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

      Download Submit

    • memory/1212-896-0x0000000000401000-0x0000000000404000-memory.dmp

      Filesize

      12KB

      Download

    • memory/1212-898-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

      Download

    • memory/1212-899-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

      Download

    • memory/1224-0-0x0000000002350000-0x0000000002390000-memory.dmp

      Filesize

      256KB

      Download