Overview

overview

10

Static

static

10

LB3.exe

windows7-x64

10

LB3.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    118s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    24-12-2024 22:09

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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 (336) 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
  • 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
  • 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:2520
    • C:\ProgramData\BF78.tmp
      "C:\ProgramData\BF78.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:1996
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\BF78.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1372
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x148
    1⤵
      PID:2672

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      129B

      MD5

      bcf13afd2abece3f6df6c08b28a4d094

      SHA1

      9236ecacbd7cad0cde33770fc7652e11c494c6f4

      SHA256

      7be134bc7aa019d6b9ac3e49ede94c29d340827e44f0f0be7332eaa63b0b929e

      SHA512

      609ac8867cdf7ab0588985f1cdba5730c2597a7cac597c4d17192372edaf5d93e17f30de444c1da156a512cce5a1b83ef51616ddd47dbddcab82517cf96f3e86

      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

      0e13019154c918b94c0bd5115f617787

      SHA1

      80d4e83a6a80970abae085eb80f3134b14740a32

      SHA256

      bbd61ccb8ee1034b840a843d7be3234c090cb117834de0a85fa377fb4c10b625

      SHA512

      8e4c2573bbcf20fc8e0014477d2e7eab9f55100d6e312ff7a3012b0bfac2b00ee2ea620368fa78252b3a0cddc8378f7de3643adc6366468bb520aacffda497c7

      Download Submit

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

      129B

      MD5

      59e14b7657bd3b2b50027ac6e6d2f710

      SHA1

      7e016cad591a18fea42708364e9f1acbe6e7d796

      SHA256

      9ab2b27e094b6e37f5d4abc9a0137ce5e03bc283ccd523c89bd933395d329760

      SHA512

      ad438785bd721060acc9c01ebebf666fa81dc616a7c62d03cb15402c45978a10b63027edb1fbfb03d5d828125465297de758d501d7810d3b5c5204fa23075748

      Download Submit

    • \ProgramData\BF78.tmp
      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

      Download Submit

    • memory/1996-873-0x000000007EF80000-0x000000007EF81000-memory.dmp

      Filesize

      4KB

      Download

    • memory/1996-872-0x00000000020B0000-0x00000000020F0000-memory.dmp

      Filesize

      256KB

      Download

    • memory/1996-871-0x00000000020B0000-0x00000000020F0000-memory.dmp

      Filesize

      256KB

      Download

    • memory/1996-870-0x000000007EFA0000-0x000000007EFA1000-memory.dmp

      Filesize

      4KB

      Download

    • memory/1996-874-0x000000007EF20000-0x000000007EF21000-memory.dmp

      Filesize

      4KB

      Download

    • memory/1996-904-0x000000007EF60000-0x000000007EF61000-memory.dmp

      Filesize

      4KB

      Download

    • memory/1996-903-0x000000007EF40000-0x000000007EF41000-memory.dmp

      Filesize

      4KB

      Download

    • memory/2520-0-0x0000000000B00000-0x0000000000B40000-memory.dmp

      Filesize

      256KB

      Download