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
    315s
  • max time network
    312s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-12-2024 21:28

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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 (599) 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 6 IoCs
  • Opens file in notepad (likely ransom note) 2 IoCs
    ransomware
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 23 IoCs
  • Suspicious use of WriteProcessMemory 13 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:4592
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:5460
    • C:\ProgramData\E9C5.tmp
      "C:\ProgramData\E9C5.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:2788
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\E9C5.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3968
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
    1⤵
      PID:2912
    • C:\Windows\system32\printfilterpipelinesvc.exe
      C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
      1⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:1044
      • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
        /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{F7131676-CFB9-4100-8737-6358C8DD23F2}.xps" 133797221075410000
        2⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        PID:4400
    • C:\Windows\system32\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\IoBMyuygl.README.txt
      1⤵
      • Opens file in notepad (likely ransom note)
      PID:5844
    • C:\Windows\system32\OpenWith.exe
      C:\Windows\system32\OpenWith.exe -Embedding
      1⤵
      • Modifies registry class
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5880
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\vcredist2010_x64.log.html.IoBMyuygl
        2⤵
        • Opens file in notepad (likely ransom note)
        PID:5980

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\$Recycle.Bin\S-1-5-21-2045521122-590294423-3465680274-1000\DDDDDDDDDDD
      Filesize

      129B

      MD5

      3558bd0f47196ee230e1a8ec8ffd71af

      SHA1

      3890d4b6a120ab04a04cc64c6d7d33b3b99af63d

      SHA256

      37dfb1088625173f16aeb8f872d3f9fdf6d4c70c986f7179ea92767ddabd8830

      SHA512

      572b07f1f7e190c4ebf3c8492a78266e61bca72f3a804a3444be2052926337559c590b95b22af18e25d7c4d1efd57b7b9dbdc6b27d70fd477a6b69ee1b5010e9

      Download Submit

    • C:\IoBMyuygl.README.txt
      Filesize

      1KB

      MD5

      0fc102c3422c21c1aadfaa1a656dc970

      SHA1

      49cc540c7a5eaa4f12cacdb21e788335d535ccc0

      SHA256

      fe49a063ebe0b4154321062c1110876bab03710ab367d8a5e3dee6e75fc79029

      SHA512

      8cf822ec2d69b4f4bfdc3303b142ff21315d6e5483a98efa834d039f68a6f57e249d374d3c127a65f524123464532afa5700b4dd4808236b082f7a420a260ab0

      Download Submit

    • C:\ProgramData\E9C5.tmp
      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

      Download Submit

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

      147KB

      MD5

      daa1efc352667ea24b2d9a5de8533874

      SHA1

      0b04cdaf24cc04209850369eff5cb84a75c3d0f6

      SHA256

      16d55344e2c56aa320a57f3ae366181897ff7f7dbd039c5772dea01d3dbab1ce

      SHA512

      fa875a2264e399a107f43d69b0a19336a36a9849e0501da062fae5ba713a278aeea234bec3d4275ea0826cfca53df1c00b04406ad8eac009c062ae0ac98cf050

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\{1E485ECA-103F-4C73-8C06-6D2129EF8385}
      Filesize

      4KB

      MD5

      e023b5f67a18273668050be8d7f788ad

      SHA1

      5fc32508169b8e8d1d3297f28558305e9e5f7519

      SHA256

      23f5eb2b12a1f77b0acf8ee0ea4d17a8687bbd2ed517201c0ccaf77ca3b5a4c8

      SHA512

      351255a94d7f70afdcdbf6950337b57bd340ac482cd7024f852f79151f2b56e82aeb8cee94f995f9971784c3024ca005a3948b4332cbaa96db53b1895c570e09

      Download Submit

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

      4KB

      MD5

      cc0321848db401423b51ec64aba5c496

      SHA1

      9740bd51d147cb5d69d2b6f409b2afb6a4738368

      SHA256

      3c8290ccccfd2d6acbea1618ba463531e8c7b43b0ee6a3d863ba11945e636883

      SHA512

      bc46bcede70434350fbea6b9c61380f9190ccd8315ee26a936c286eb3cbefd22f98d331560317260475e479ea7ed49a5a9a256154b397643743970a6f95237e5

      Download Submit

    • C:\vcredist2010_x64.log.html.IoBMyuygl
      Filesize

      86KB

      MD5

      07ced3d390aa89b55c8b000e8de6e988

      SHA1

      813fc049510c4ad12363b9b53d24092d082b7af7

      SHA256

      61a79f28a35916da993c1471a5e8e44c24f80774ac5adcf311ffc9769934aea5

      SHA512

      618a15d7811f91a22f1e7d763881ff43618b02273ed5e98c1ea7bab2514996831a40a56d27d3ad30954d2eba0cf804e65c5abe2c98b9443eb9dd6d5899d6bcfb

      Download Submit

    • F:\$RECYCLE.BIN\S-1-5-21-2045521122-590294423-3465680274-1000\DDDDDDDDDDD
      Filesize

      129B

      MD5

      b84fc4d328b733e68a0c4b1793fd844e

      SHA1

      49feb9ffef98cfbbcc8d91d902fa367f5c3b4081

      SHA256

      a20ab80df98f3e97831e3916273c00ac416be930a07fa81d724ef07a98c1f0f0

      SHA512

      99c3982a9f85520306e81e81b1d025f27b98245ebf66f33d1bc864ddb7a4b2eca8be6ac7466e977bc23e8bcce1d66eeb266a78ae7c955098e2cfdfaa096e819c

      Download Submit

    • memory/4400-2808-0x00007FFA68390000-0x00007FFA683A0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4400-2883-0x00007FFA68390000-0x00007FFA683A0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4400-2809-0x00007FFA68390000-0x00007FFA683A0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4400-2811-0x00007FFA68390000-0x00007FFA683A0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4400-2810-0x00007FFA68390000-0x00007FFA683A0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4400-2806-0x00007FFA68390000-0x00007FFA683A0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4400-2885-0x00007FFA68390000-0x00007FFA683A0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4400-2843-0x00007FFA65D50000-0x00007FFA65D60000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4400-2844-0x00007FFA65D50000-0x00007FFA65D60000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4400-2882-0x00007FFA68390000-0x00007FFA683A0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4400-2884-0x00007FFA68390000-0x00007FFA683A0000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4592-0-0x0000000002820000-0x0000000002830000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4592-1-0x0000000002820000-0x0000000002830000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4592-2793-0x0000000002820000-0x0000000002830000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4592-2794-0x0000000002820000-0x0000000002830000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4592-2-0x0000000002820000-0x0000000002830000-memory.dmp

      Filesize

      64KB

      Download