Overview

overview

10

Static

static

10

LB3.exe

windows7-x64

10

LB3.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    94s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-12-2024 22:06

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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 (617) files with added filename extension

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

    ransomware
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 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
  • Drops file in System32 directory 4 IoCs
  • 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
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies Control Panel 2 IoCs
    evasion
  • Modifies registry class 5 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
    ransomware
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 14 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\LB3.exe
    "C:\Users\Admin\AppData\Local\Temp\LB3.exe"
    1⤵
    • 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:4636
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:3380
    • C:\ProgramData\EC07.tmp
      "C:\ProgramData\EC07.tmp"
      2⤵
      • Checks computer location settings
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:2108
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\EC07.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1600
  • 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)
    • Suspicious use of FindShellTrayWindow
    PID:4068
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
    1⤵
      PID:3620
    • C:\Windows\system32\printfilterpipelinesvc.exe
      C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
      1⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:4932
      • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
        /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{12AB78EC-0977-42C1-9B87-402E443C92ED}.xps" 133795515972400000
        2⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious use of SetWindowsHookEx
        PID:1568

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\$Recycle.Bin\S-1-5-21-4089630652-1596403869-279772308-1000\NNNNNNNNNNN
      Filesize

      129B

      MD5

      f4fa4efc680e0b8b174252c5bb67fcce

      SHA1

      78198fdac05aa9093d066c731c06937a2b483be9

      SHA256

      cc8bd5709191d185992a1b38ddc1bf6346e2a5f56a65ace4d1dc628d02d4fa42

      SHA512

      d29d5cc9a6501bf9edcb0d2246951c33855d395269266b1723157dff3dff422d874167d8b6c564d26e1fe97573bfda9a524f09c023ace68f0b21cc25a0b8e9cb

      Download Submit

    • C:\IoBMyuygl.README.txt
      Filesize

      1KB

      MD5

      0fc102c3422c21c1aadfaa1a656dc970

      SHA1

      49cc540c7a5eaa4f12cacdb21e788335d535ccc0

      SHA256

      fe49a063ebe0b4154321062c1110876bab03710ab367d8a5e3dee6e75fc79029

      SHA512

      8cf822ec2d69b4f4bfdc3303b142ff21315d6e5483a98efa834d039f68a6f57e249d374d3c127a65f524123464532afa5700b4dd4808236b082f7a420a260ab0

      Download Submit

    • C:\ProgramData\EC07.tmp
      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

      Download Submit

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

      147KB

      MD5

      307aaf33be4b2827d7cdf2b8efbf9275

      SHA1

      315548b4caffcb9273aab8f094eec266b6fe0795

      SHA256

      4d206124822806f2c8bbe452384c387ecb1a06d9607bcd43e0588a0e23e85430

      SHA512

      23054a6b58fd13b3b05a8328647b3618041296985a31b016c9435f1a6ca476b2a3ab1c0e843e003876febe7aae14f7178ab5eeae36b7582741877c16f7ce719e

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\{6F4685B0-C735-4DFB-A27A-1042E965D52F}
      Filesize

      4KB

      MD5

      e374b5c9b2255387087ee632b0efd609

      SHA1

      434acea806cc75b0633079f5d689dd74e93dcdab

      SHA256

      0d5ee4fe2e761fc22f2d31e8e9c7fded8111f8ab4b49f692a8d0d8cb82293ec0

      SHA512

      7dd2fa66b68a697baf969f527404e27c43500bd66aeb0199e358e242c7f2eb8e52e5781784a8ea8cbbf135ef811485060a500567572722be5c1ccbecbdae619d

      Download Submit

    • C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2
      Filesize

      4KB

      MD5

      135da6f6ad04697ae2123c5f9875aa1f

      SHA1

      eaa70b33bc1094af25a010c5a8fac4b833a0605d

      SHA256

      a8e80ab8840c6b65285629af0aa8f9ff1833a27191af3e056fa7bf96076b7106

      SHA512

      eeef02074fde48ecb98b2c87983f5370da5abb164138b736bc20ba6786cc795d0eb5e9d41dd97c664b5ac50297060861e259e2e0d4bb0c69473100d39dfec273

      Download Submit

    • F:\$RECYCLE.BIN\S-1-5-21-4089630652-1596403869-279772308-1000\DDDDDDDDDDD
      Filesize

      129B

      MD5

      e808b5048c0f7539b1ce2cf5dd96e82a

      SHA1

      ed06d90de843736d4d9b7d2e179614f75550bb70

      SHA256

      eb386094ca62228675b51fc62d963c685f1df0833d66f913aba61f93f8a64cad

      SHA512

      c45dc784314fd1e7a864d7585e2c544818969ea9288cdf6518f5e8652090444821707e45e66f0635ce00b9bfbb8d3498a3489b5e124bd0a8a75d7a1f7110d4c6

      Download Submit

    • memory/1568-2969-0x00007FFEF6090000-0x00007FFEF60A0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/1568-3040-0x00007FFEF6090000-0x00007FFEF60A0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/1568-2964-0x00007FFEF6090000-0x00007FFEF60A0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/1568-2967-0x00007FFEF6090000-0x00007FFEF60A0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/1568-2966-0x00007FFEF6090000-0x00007FFEF60A0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/1568-3042-0x00007FFEF6090000-0x00007FFEF60A0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/1568-2968-0x00007FFEF6090000-0x00007FFEF60A0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/1568-3043-0x00007FFEF6090000-0x00007FFEF60A0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/1568-3041-0x00007FFEF6090000-0x00007FFEF60A0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/1568-3001-0x00007FFEF3DF0000-0x00007FFEF3E00000-memory.dmp

      Filesize

      64KB

      Download

    • memory/1568-3002-0x00007FFEF3DF0000-0x00007FFEF3E00000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4636-1-0x0000000002A20000-0x0000000002A30000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4636-2-0x0000000002A20000-0x0000000002A30000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4636-2952-0x0000000002A20000-0x0000000002A30000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4636-2950-0x0000000002A20000-0x0000000002A30000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4636-2951-0x0000000002A20000-0x0000000002A30000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4636-0-0x0000000002A20000-0x0000000002A30000-memory.dmp

      Filesize

      64KB

      Download