Overview

overview

10

Static

static

10

Ransomware.exe

windows7-x64

10

Ransomware.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    103s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/03/2025, 05:08

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General

  • Target

    Ransomware.exe

  • Size

    77KB

  • MD5

    559b0d30b7bbf2d514c01e275fadbc90

  • SHA1

    25f2a1d11717d9127ced536d89caeb0c54edad26

  • SHA256

    d196d67dbaa312f08d963d404d4237eed1cbb708168f732893dbf91d85d3d493

  • SHA512

    ac3e6b24416812f2cdf54f1131d5235ce47481bd5336029f6ff1dd4b292eba33d1c33c07949c0f197166bc438fad66a773aebc989d31a4d65d2c86e449d89727

  • SSDEEP

    1536:5Ni6hsq9licc1/auzQX3unCfjiKG19ukYlUSaL7TOiwjJ:uisq9l/cVMTi1skYlURPR6J

Score
10/10
chaosdefense_evasionevasionexecutionimpactpersistenceransomwarespywarestealer

Malware Config

Extracted

Path

C:\Users\Admin\SPECTRARANSOMWARE.txt

Ransom Note
CONFIDENTIAL AND URGENT To the Management and IT Department of your company, You are now faced with a critical situation. Your company's digital assets, including sensitive data, financial records, and intellectual property, have been compromised. Our group has successfully infiltrated your network, exploiting vulnerabilities that your security measures failed to address. As a result, we have encrypted all accessible data, rendering it inaccessible to your organization. The encryption method used is highly sophisticated, and decryption without our provided key is virtually impossible. Your attempts to restore from backups will be futile, as we have also compromised your backup systems. The following data has been encrypted and is currently being held for ransom: Financial records, including invoices, payments, and accounting data Sensitive customer information, including personal identifiable data Proprietary software and intellectual property Email communications and internal memos Database files, including SQL and NoSQL data We are willing to provide the decryption key in exchange for a payment of $5000 in Bitcoin. This amount is non-negotiable, and any attempts to bargain or delay payment will result in the permanent deletion of your data. You have 72 hours to comply with our demands. Failure to pay the ransom within the specified timeframe will result in: 1. Permanent deletion of your encrypted data 2. Public release of sensitive customer information 3. Disclosure of your company's security vulnerabilities to the public and competitors 4. Initiation of a targeted attack on your remaining infrastructure To facilitate the payment process, we have provided a Bitcoin wallet address below: bc1q88r38gk8ynrhdfur7yefwf5hrn2y56s90vlrvq Once the payment is confirmed, we will provide the decryption key and instructions on how to restore your data. Please note that any attempts to involve law enforcement or cybersecurity firms will be detected, and we will take immediate action to destroy your data. You are advised to take this situation seriously and act promptly to avoid any further consequences. We are monitoring your company's activities closely and will respond accordingly. DO NOT IGNORE THIS MESSAGE Your company's future depends on your prompt response to this situation. We expect your cooperation and payment within the specified timeframe. Sincerely, Spectra Ransomware

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

    ransomwarechaos
  • Chaos Ransomware 2 IoCs
  • Chaos family
    chaos
  • 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
    defense_evasion
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Drops startup file 2 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
  • Adds Run key to start application 2 TTPs 1 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).

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

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

  • Interacts with shadow copies 3 TTPs 1 IoCs

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

    ransomware
  • Modifies registry class 1 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
    ransomware
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 48 IoCs
  • Suspicious use of AdjustPrivilegeToken 50 IoCs
  • Suspicious use of WriteProcessMemory 20 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\Ransomware.exe
    "C:\Users\Admin\AppData\Local\Temp\Ransomware.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1960
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.exe"
      2⤵
      • 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:2564
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3808
        • C:\Windows\system32\vssadmin.exe
          vssadmin delete shadows /all /quiet
          4⤵
          • Interacts with shadow copies
          PID:4816
        • C:\Windows\System32\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:4828
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1552
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} bootstatuspolicy ignoreallfailures
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:5428
        • C:\Windows\system32\bcdedit.exe
          bcdedit /set {default} recoveryenabled no
          4⤵
          • Modifies boot configuration data using bcdedit
          PID:2816
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2900
        • C:\Windows\system32\wbadmin.exe
          wbadmin delete catalog -quiet
          4⤵
          • Deletes backup catalog
          PID:3092
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\SPECTRARANSOMWARE.txt
        3⤵
        • Opens file in notepad (likely ransom note)
        PID:5192
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4964
  • C:\Windows\system32\wbengine.exe
    "C:\Windows\system32\wbengine.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1200
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:1476
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:6012

    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

    Credentials from Password Stores

    1
    T1555

    Credentials from Web Browsers

    1
    T1555.003

    Unsecured Credentials

    1
    T1552

    Credentials In Files

    1
    T1552.001

    Discovery

    Peripheral Device Discovery

    1
    T1120

    Query Registry

    3
    T1012

    System Information Discovery

    3
    T1082

    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:\Users\Admin\2012_x86_0_vcRuntimeMinimum_x86.log
      Filesize

      1B

      MD5

      d1457b72c3fb323a2671125aef3eab5d

      SHA1

      5bab61eb53176449e25c2c82f172b82cb13ffb9d

      SHA256

      8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1

      SHA512

      ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0

      Download Submit

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

      1KB

      MD5

      baf55b95da4a601229647f25dad12878

      SHA1

      abc16954ebfd213733c4493fc1910164d825cac8

      SHA256

      ee954c5d8156fd8890e582c716e5758ed9b33721258f10e758bdc31ccbcb1924

      SHA512

      24f502fedb1a305d0d7b08857ffc1db9b2359ff34e06d5748ecc84e35c985f29a20d9f0a533bea32d234ab37097ec0481620c63b14ac89b280e75e14d19fd545

      Download Submit

    • C:\Users\Admin\AppData\Roaming\svchost.exe
      Filesize

      77KB

      MD5

      559b0d30b7bbf2d514c01e275fadbc90

      SHA1

      25f2a1d11717d9127ced536d89caeb0c54edad26

      SHA256

      d196d67dbaa312f08d963d404d4237eed1cbb708168f732893dbf91d85d3d493

      SHA512

      ac3e6b24416812f2cdf54f1131d5235ce47481bd5336029f6ff1dd4b292eba33d1c33c07949c0f197166bc438fad66a773aebc989d31a4d65d2c86e449d89727

      Download Submit

    • C:\Users\Admin\SPECTRARANSOMWARE.txt
      Filesize

      2KB

      MD5

      4203f97be5cb713003dbf23a880f5eaa

      SHA1

      4c2484d42cf32442f54df672a352596c88350d01

      SHA256

      da85ae8957301fd1095c9a52b2d6a6e43b24393696f99dc359440a726fe33eb1

      SHA512

      4041df6a662ad9915bc5e0f038fda046954c16b703975e4b2d8a4ec10db0b39ed08d6d12c91b13ad1e5a40e836a7806e7b060355b4ec3b11822ab93f46be0212

      Download Submit

    • memory/1960-0-0x00007FFDE1293000-0x00007FFDE1295000-memory.dmp

      Filesize

      8KB

      Download

    • memory/1960-1-0x0000000000510000-0x000000000052A000-memory.dmp

      Filesize

      104KB

      Download

    • memory/1960-2-0x00007FFDE1290000-0x00007FFDE1D51000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/1960-16-0x00007FFDE1290000-0x00007FFDE1D51000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/2564-15-0x00007FFDE1290000-0x00007FFDE1D51000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/2564-1367-0x00007FFDE1290000-0x00007FFDE1D51000-memory.dmp

      Filesize

      10.8MB

      Download