Overview

overview

10

Static

static

10

Encrypt.exe

windows7-x64

10

Encrypt.exe

windows10-2004-x64

10

Resubmissions

15/09/2024, 12:50

240915-p3e4kavfmn 10

15/09/2024, 10:12

240915-l8y7vaygnm 10

Analysis

  • max time kernel
    144s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    15/09/2024, 10:12

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General

  • Target

    Encrypt.exe

  • Size

    1.2MB

  • MD5

    8728ba233fcb020a6a2eaabb90df630c

  • SHA1

    c6dc576f2e0423e8a0f36bba51fa7c65e1e281e7

  • SHA256

    b15052d17afc1a01e83cdc0624dd268838237f8cd66fa12c56706bdee8a61286

  • SHA512

    24e494c64647794fc9aa91da6975117d27984b4bb21859dbf0c60faba5b7f0ec26c26ebbe1ad57f185e1d7ecd4b797d530639d287456ac9bc2930a111fd4613a

  • SSDEEP

    24576:GnsJ39LyjbJkQFMhmC+6GD9gbU4+Il2L1ywD:GnsHyjtk2MYC5GD+P6

Score
10/10
chaosdefense_evasiondiscoveryevasionexecutionimpactmacropersistenceransomwarespywarestealer

Malware Config

Extracted

Path

C:\ProgramData\Microsoft\Device Stage\Device\{113527a4-45d4-4b6f-b567-97838f1b04b0}\read_it.txt

Ransom Note
Don't worry, you can return all your files! All your files like documents, photos, databases and other important are encrypted What guarantees do we give to you? You can send 3 of your encrypted files and we decrypt it for free. You must follow these steps To decrypt your files : 1) Write on our Number :+66 970417453 ( In case of no answer in 24 hours check your spam folder or write us to this e-mail: [email protected]) 2) Obtain Bitcoin (You have to pay for decryption in Bitcoins. After payment we will send you the tool that will decrypt all your files.)

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

    ransomwarechaos
  • Chaos Ransomware 9 IoCs
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution
  • Modifies boot configuration data using bcdedit 1 TTPs 4 IoCs
    ransomwareevasion
  • Deletes backup catalog 3 TTPs 2 IoCs

    Uses wbadmin.exe to inhibit system recovery.

    ransomware
  • Disables Task Manager via registry modification
    evasion
  • Suspicious Office macro 1 IoCs

    Office document equipped with macros.

    macro
  • Drops startup file 3 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Adds Run key to start application 2 TTPs 3 IoCs
    persistence
  • Drops desktop.ini file(s) 64 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
    ransomware
  • 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
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Interacts with shadow copies 3 TTPs 2 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

    ransomware
  • Opens file in notepad (likely ransom note) 2 IoCs
    ransomware
  • Suspicious behavior: AddClipboardFormatListener 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\Encrypt.exe
    "C:\Users\Admin\AppData\Local\Temp\Encrypt.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2344
    • C:\Users\Admin\AppData\Local\Temp\._cache_Encrypt.exe
      "C:\Users\Admin\AppData\Local\Temp\._cache_Encrypt.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1708
      • C:\Users\Admin\AppData\Roaming\svchost.exe
        "C:\Users\Admin\AppData\Roaming\svchost.exe"
        3⤵
        • Drops startup file
        • Executes dropped EXE
        • Adds Run key to start application
        • Drops desktop.ini file(s)
        • Sets desktop wallpaper using registry
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: LoadsDriver
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:264
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2192
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            5⤵
            • Interacts with shadow copies
            PID:1636
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic shadowcopy delete
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1376
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1932
          • C:\Windows\system32\bcdedit.exe
            bcdedit /set {default} bootstatuspolicy ignoreallfailures
            5⤵
            • Modifies boot configuration data using bcdedit
            PID:1796
          • C:\Windows\system32\bcdedit.exe
            bcdedit /set {default} recoveryenabled no
            5⤵
            • Modifies boot configuration data using bcdedit
            PID:1720
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2284
          • C:\Windows\system32\wbadmin.exe
            wbadmin delete catalog -quiet
            5⤵
            • Deletes backup catalog
            PID:780
        • C:\Windows\system32\NOTEPAD.EXE
          "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_it.txt
          4⤵
          • Opens file in notepad (likely ransom note)
          PID:552
    • C:\ProgramData\Synaptics\Synaptics.exe
      "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2720
      • C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe
        "C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe" InjUpdate
        3⤵
        • Drops startup file
        • Executes dropped EXE
        • Adds Run key to start application
        • Drops desktop.ini file(s)
        • Sets desktop wallpaper using registry
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2588
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1592
          • C:\Windows\system32\vssadmin.exe
            vssadmin delete shadows /all /quiet
            5⤵
            • Interacts with shadow copies
            PID:1756
          • C:\Windows\System32\Wbem\WMIC.exe
            wmic shadowcopy delete
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:780
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1608
          • C:\Windows\system32\bcdedit.exe
            bcdedit /set {default} bootstatuspolicy ignoreallfailures
            5⤵
            • Modifies boot configuration data using bcdedit
            PID:2268
          • C:\Windows\system32\bcdedit.exe
            bcdedit /set {default} recoveryenabled no
            5⤵
            • Modifies boot configuration data using bcdedit
            PID:2352
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2824
          • C:\Windows\system32\wbadmin.exe
            wbadmin delete catalog -quiet
            5⤵
            • Deletes backup catalog
            PID:2868
        • C:\Windows\system32\NOTEPAD.EXE
          "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_it.txt
          4⤵
          • Opens file in notepad (likely ransom note)
          PID:2412
  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /automation -Embedding
    1⤵
    • System Location Discovery: System Language Discovery
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:2676
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2784
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1076
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:2460
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
        PID:1868
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
          PID:2624

        Network

        MITRE ATT&CK Enterprise v15

        Reconnaissance

        Resource Development

        Initial Access

        Execution

        Command and Scripting Interpreter

        1
        T1059

        Windows Management Instrumentation

        1
        T1047

        Persistence

        Boot or Logon Autostart Execution

        1
        T1547

        Registry Run Keys / Startup Folder

        1
        T1547.001

        Privilege Escalation

        Boot or Logon Autostart Execution

        1
        T1547

        Registry Run Keys / Startup Folder

        1
        T1547.001

        Defense Evasion

        Direct Volume Access

        1
        T1006

        Indicator Removal

        3
        T1070

        File Deletion

        3
        T1070.004

        Modify Registry

        2
        T1112

        Credential Access

        Unsecured Credentials

        1
        T1552

        Credentials In Files

        1
        T1552.001

        Discovery

        Query Registry

        2
        T1012

        System Information Discovery

        2
        T1082

        System Location Discovery

        1
        T1614

        System Language Discovery

        1
        T1614.001

        Lateral Movement

        Collection

        Data from Local System

        1
        T1005

        Command and Control

        Exfiltration

        Impact

        Defacement

        1
        T1491

        Inhibit System Recovery

        4
        T1490

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\ProgramData\Microsoft\Device Stage\Device\{113527a4-45d4-4b6f-b567-97838f1b04b0}\read_it.txt
          Filesize

          582B

          MD5

          76e381f78e94c35d358a4fc048d3aa37

          SHA1

          361d4153f76f32d36c1edd3da27e59f41f7e2d0f

          SHA256

          db317b799b14715d1b26661dd60570faa3b5c377656d490cd2697f78271c413f

          SHA512

          ef1d2bd09d8e34eb6260d11a3ac821cdd1b6aa1dba0c8616cbed1d233979d39ceb00c369ccabb6630324ef0027a83b6b61729b2ed66d55bf249387782a1fe4e3

          Download Submit

        • C:\ProgramData\Synaptics\Synaptics.exe
          Filesize

          1.2MB

          MD5

          8728ba233fcb020a6a2eaabb90df630c

          SHA1

          c6dc576f2e0423e8a0f36bba51fa7c65e1e281e7

          SHA256

          b15052d17afc1a01e83cdc0624dd268838237f8cd66fa12c56706bdee8a61286

          SHA512

          24e494c64647794fc9aa91da6975117d27984b4bb21859dbf0c60faba5b7f0ec26c26ebbe1ad57f185e1d7ecd4b797d530639d287456ac9bc2930a111fd4613a

          Download Submit

        • C:\Users\Admin\AppData\Local\Temp\FboBw9g2.xlsm
          Filesize

          25KB

          MD5

          bba5011a292bfc2b6ea661e4964b1c2e

          SHA1

          39759fc4f253514d4944083b9eea1e9ec89aecdb

          SHA256

          94798e6d3a169e798fb11706e317cbf9c76fcf85fd58c5cee02a12a6ac0c0228

          SHA512

          489b466a924d51edeba99f74f0c75da879406e3e19b31fedbc9c6d5a14c8fb623b97d79c6e3b805718aa351c2a8f03608c79d5cfa1f709d814f3669c8bcdb6aa

          Download Submit

        • C:\Users\Admin\AppData\Local\Temp\FboBw9g2.xlsm
          Filesize

          17KB

          MD5

          e566fc53051035e1e6fd0ed1823de0f9

          SHA1

          00bc96c48b98676ecd67e81a6f1d7754e4156044

          SHA256

          8e574b4ae6502230c0829e2319a6c146aebd51b7008bf5bbfb731424d7952c15

          SHA512

          a12f56ff30ea35381c2b8f8af2446cf1daa21ee872e98cad4b863db060acd4c33c5760918c277dadb7a490cb4ca2f925d59c70dc5171e16601a11bc4a6542b04

          Download Submit

        • C:\Users\Admin\AppData\Local\Temp\~$FboBw9g2.xlsm
          Filesize

          165B

          MD5

          ff09371174f7c701e75f357a187c06e8

          SHA1

          57f9a638fd652922d7eb23236c80055a91724503

          SHA256

          e4ba04959837c27019a2349015543802439e152ddc4baf4e8c7b9d2b483362a8

          SHA512

          e4d01e5908e9f80b7732473ec6807bb7faa5425e3154d5642350f44d7220af3cffd277e0b67bcf03f1433ac26a26edb3ddd3707715b61d054b979fbb4b453882

          Download Submit

        • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\bs4a8d8y.default-release\storage\permanent\chrome\idb\2823318777ntouromlalnodry--naod.sqlite.nu50
          Filesize

          48KB

          MD5

          6a9375a6f235157eb246cd92fc8c0a4c

          SHA1

          629017353642fdfff7036dff175bd443bcb3d0fe

          SHA256

          3df0bdb988d84d51d8b7aeb28d2089bd6bf5bb223caecf5b4515e5de72ef8bbd

          SHA512

          70cc432995149a5a4d697f59027fac1988009166f76312746245eda6452665ad0b8a1ff7ca0ef5caf11135ccd28c78b082261a25945fe08e382c3c977832bfee

          Download Submit

        • C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Command Prompt.lnk
          Filesize

          1B

          MD5

          d1457b72c3fb323a2671125aef3eab5d

          SHA1

          5bab61eb53176449e25c2c82f172b82cb13ffb9d

          SHA256

          8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1

          SHA512

          ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0

          Download Submit

        • F:\surprise.exe
          Filesize

          64KB

          MD5

          9f12bb12fefec18511a3c5ac75d4113f

          SHA1

          ccfc8dc36135f7753a682634986589fd6a729ab9

          SHA256

          ca4fc3bb7516c41141be6c363a51705e59037ab73217d7133b8dcc4012f0c78a

          SHA512

          89520cdc560ba06577e8d451990e1c6e9995604c873d6ba745717d34ad1068d200b6e1d00dd2888bea99e5f266fccf836ea7135ab3f98502fcaf95e53d22390d

          Download Submit

        • \Users\Admin\AppData\Local\Temp\._cache_Encrypt.exe
          Filesize

          533KB

          MD5

          e7d91103647b76f121b854fe806f80e2

          SHA1

          e6adca5f83dfb2cca099cf18d6960d422b82bb9e

          SHA256

          04ed744d9643830fc5f0499203a6fde506b5f2c89868695bfe179a8edb3b28c0

          SHA512

          69dc672bfe3a89ebe71b8041159afab0231701ea59438feb1f000ddddf52627c1f7c6f36bd8c2f77f037dd2659e6ef8f27db283476dae228522051659f2f67b0

          Download Submit

        • memory/264-85-0x0000000001040000-0x00000000010CC000-memory.dmp

          Filesize

          560KB

          Download

        • memory/1708-26-0x0000000000C50000-0x0000000000CDC000-memory.dmp

          Filesize

          560KB

          Download

        • memory/2344-0-0x0000000000220000-0x0000000000221000-memory.dmp

          Filesize

          4KB

          Download

        • memory/2344-25-0x0000000000400000-0x0000000000545000-memory.dmp

          Filesize

          1.3MB

          Download

        • memory/2588-36-0x0000000000B20000-0x0000000000BAC000-memory.dmp

          Filesize

          560KB

          Download

        • memory/2676-37-0x000000005FFF0000-0x0000000060000000-memory.dmp

          Filesize

          64KB

          Download

        • memory/2720-1203-0x0000000000400000-0x0000000000545000-memory.dmp

          Filesize

          1.3MB

          Download

        • memory/2720-1239-0x0000000000400000-0x0000000000545000-memory.dmp

          Filesize

          1.3MB

          Download