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
    208s
  • max time network
    204s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-09-2024 12:50

Sharing

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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_evasiondiscoveryevasionexecutionimpactpersistenceransomwarespywarestealer

Malware Config

Extracted

Path

C:\Users\Default\AppData\Local\Microsoft\Windows\Shell\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 6 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 2 IoCs
    ransomwareevasion
  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

    ransomware
  • Disables Task Manager via registry modification
    evasion
  • Checks computer location settings 2 TTPs 5 IoCs

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

  • Drops startup file 2 IoCs
  • Executes dropped EXE 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 2 IoCs
    persistence
  • Drops desktop.ini file(s) 64 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 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 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Checks SCSI registry key(s) 3 TTPs 4 IoCs

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

  • 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
  • Interacts with shadow copies 3 TTPs 1 IoCs

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

    ransomware
  • Modifies registry class 3 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
    ransomware
  • Suspicious behavior: AddClipboardFormatListener 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 51 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 29 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⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3896
    • C:\Users\Admin\AppData\Local\Temp\._cache_Encrypt.exe
      "C:\Users\Admin\AppData\Local\Temp\._cache_Encrypt.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2524
      • C:\Users\Admin\AppData\Roaming\svchost.exe
        "C:\Users\Admin\AppData\Roaming\svchost.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: AddClipboardFormatListener
        PID:3496
    • C:\ProgramData\Synaptics\Synaptics.exe
      "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:1716
      • C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe
        "C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe" InjUpdate
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1988
        • C:\Users\Admin\AppData\Roaming\svchost.exe
          "C:\Users\Admin\AppData\Roaming\svchost.exe"
          4⤵
          • Checks computer location settings
          • Drops startup file
          • Executes dropped EXE
          • Adds Run key to start application
          • Drops desktop.ini file(s)
          • Sets desktop wallpaper using registry
          • Modifies registry class
          • Suspicious behavior: AddClipboardFormatListener
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:3848
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:4600
            • C:\Windows\system32\vssadmin.exe
              vssadmin delete shadows /all /quiet
              6⤵
              • Interacts with shadow copies
              PID:2828
            • C:\Windows\System32\Wbem\WMIC.exe
              wmic shadowcopy delete
              6⤵
              • Suspicious use of AdjustPrivilegeToken
              PID:1680
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:1524
            • C:\Windows\system32\bcdedit.exe
              bcdedit /set {default} bootstatuspolicy ignoreallfailures
              6⤵
              • Modifies boot configuration data using bcdedit
              PID:3276
            • C:\Windows\system32\bcdedit.exe
              bcdedit /set {default} recoveryenabled no
              6⤵
              • Modifies boot configuration data using bcdedit
              PID:116
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:5012
            • C:\Windows\system32\wbadmin.exe
              wbadmin delete catalog -quiet
              6⤵
              • Deletes backup catalog
              PID:3732
          • C:\Windows\system32\NOTEPAD.EXE
            "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_it.txt
            5⤵
            • Opens file in notepad (likely ransom note)
            • Suspicious use of FindShellTrayWindow
            PID:4752
  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" /automation -Embedding
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:4756
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1400
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1816
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:3060
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:2792

    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

    Peripheral Device Discovery

    1
    T1120

    Query Registry

    5
    T1012

    System Information Discovery

    5
    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

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    Downloads

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

      1.2MB

      MD5

      8728ba233fcb020a6a2eaabb90df630c

      SHA1

      c6dc576f2e0423e8a0f36bba51fa7c65e1e281e7

      SHA256

      b15052d17afc1a01e83cdc0624dd268838237f8cd66fa12c56706bdee8a61286

      SHA512

      24e494c64647794fc9aa91da6975117d27984b4bb21859dbf0c60faba5b7f0ec26c26ebbe1ad57f185e1d7ecd4b797d530639d287456ac9bc2930a111fd4613a

      Download Submit

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\._cache_Synaptics.exe.log
      Filesize

      1KB

      MD5

      baf55b95da4a601229647f25dad12878

      SHA1

      abc16954ebfd213733c4493fc1910164d825cac8

      SHA256

      ee954c5d8156fd8890e582c716e5758ed9b33721258f10e758bdc31ccbcb1924

      SHA512

      24f502fedb1a305d0d7b08857ffc1db9b2359ff34e06d5748ecc84e35c985f29a20d9f0a533bea32d234ab37097ec0481620c63b14ac89b280e75e14d19fd545

      Download Submit

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

      533KB

      MD5

      e7d91103647b76f121b854fe806f80e2

      SHA1

      e6adca5f83dfb2cca099cf18d6960d422b82bb9e

      SHA256

      04ed744d9643830fc5f0499203a6fde506b5f2c89868695bfe179a8edb3b28c0

      SHA512

      69dc672bfe3a89ebe71b8041159afab0231701ea59438feb1f000ddddf52627c1f7c6f36bd8c2f77f037dd2659e6ef8f27db283476dae228522051659f2f67b0

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\DCA75E00
      Filesize

      23KB

      MD5

      49fe6a355ddf5caade5b2851f64aa250

      SHA1

      3bbe456b7c58386b3c181da2f99863275fb6086d

      SHA256

      16d7c926d3fd48a948961720495ca7384fe6052ea9eed544541e7181e382ea06

      SHA512

      fd9ac255273383abb7c695ffd082944914bf686a8d9406bd1207357ea056c9dc8981c9a3596eb5313801b0d39994c2ab7fb8faa158f45734d1f7e1c9bdf16218

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\mTTH21gL.xlsm
      Filesize

      17KB

      MD5

      e566fc53051035e1e6fd0ed1823de0f9

      SHA1

      00bc96c48b98676ecd67e81a6f1d7754e4156044

      SHA256

      8e574b4ae6502230c0829e2319a6c146aebd51b7008bf5bbfb731424d7952c15

      SHA512

      a12f56ff30ea35381c2b8f8af2446cf1daa21ee872e98cad4b863db060acd4c33c5760918c277dadb7a490cb4ca2f925d59c70dc5171e16601a11bc4a6542b04

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\~$mTTH21gL.xlsm
      Filesize

      165B

      MD5

      ff09371174f7c701e75f357a187c06e8

      SHA1

      57f9a638fd652922d7eb23236c80055a91724503

      SHA256

      e4ba04959837c27019a2349015543802439e152ddc4baf4e8c7b9d2b483362a8

      SHA512

      e4d01e5908e9f80b7732473ec6807bb7faa5425e3154d5642350f44d7220af3cffd277e0b67bcf03f1433ac26a26edb3ddd3707715b61d054b979fbb4b453882

      Download Submit

    • C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\5r4i2p4s.default-release\storage\permanent\chrome\idb\2823318777ntouromlalnodry--naod.sqlite.fmdx
      Filesize

      48KB

      MD5

      51b2050e9ee0eeb9b322755fd87edddf

      SHA1

      92245b33257b9c90196bc6a81245106b298cf88b

      SHA256

      eec473615513c26e38896bb84739ac3a024356c081d0d68b166540bce3c19f0e

      SHA512

      51bc8e58fc672f19220eae2435b7556a7c9c6371145f990012935a7cd8a32a512a2d4b18439aacf4d2e7f0243976a7c2991fc5fa052a6e60d65309a047817a05

      Download Submit

    • C:\Users\Default\AppData\Local\Microsoft\Windows\Shell\read_it.txt
      Filesize

      582B

      MD5

      76e381f78e94c35d358a4fc048d3aa37

      SHA1

      361d4153f76f32d36c1edd3da27e59f41f7e2d0f

      SHA256

      db317b799b14715d1b26661dd60570faa3b5c377656d490cd2697f78271c413f

      SHA512

      ef1d2bd09d8e34eb6260d11a3ac821cdd1b6aa1dba0c8616cbed1d233979d39ceb00c369ccabb6630324ef0027a83b6b61729b2ed66d55bf249387782a1fe4e3

      Download Submit

    • C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\Magnify.lnk
      Filesize

      1B

      MD5

      d1457b72c3fb323a2671125aef3eab5d

      SHA1

      5bab61eb53176449e25c2c82f172b82cb13ffb9d

      SHA256

      8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1

      SHA512

      ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0

      Download Submit

    • memory/1716-1643-0x0000000000400000-0x0000000000545000-memory.dmp

      Filesize

      1.3MB

      Download

    • memory/1716-1612-0x0000000000400000-0x0000000000545000-memory.dmp

      Filesize

      1.3MB

      Download

    • memory/2524-131-0x00007FF999440000-0x00007FF999F01000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/2524-70-0x00007FF999443000-0x00007FF999445000-memory.dmp

      Filesize

      8KB

      Download

    • memory/2524-1616-0x00007FF999440000-0x00007FF999F01000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/2524-1613-0x00007FF999440000-0x00007FF999F01000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/2524-71-0x00000000006C0000-0x000000000074C000-memory.dmp

      Filesize

      560KB

      Download

    • memory/2524-1611-0x00007FF999443000-0x00007FF999445000-memory.dmp

      Filesize

      8KB

      Download

    • memory/3896-0-0x00000000023E0000-0x00000000023E1000-memory.dmp

      Filesize

      4KB

      Download

    • memory/3896-129-0x0000000000400000-0x0000000000545000-memory.dmp

      Filesize

      1.3MB

      Download

    • memory/4756-196-0x00007FF977730000-0x00007FF977740000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4756-192-0x00007FF977730000-0x00007FF977740000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4756-194-0x00007FF977730000-0x00007FF977740000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4756-195-0x00007FF977730000-0x00007FF977740000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4756-197-0x00007FF975620000-0x00007FF975630000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4756-193-0x00007FF977730000-0x00007FF977740000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4756-198-0x00007FF975620000-0x00007FF975630000-memory.dmp

      Filesize

      64KB

      Download