Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    03/05/2026, 15:53

General

  • Target
    2026-05-03_aa628df8564ddea05e686aca16c80ba1_akira_elex_glassworm.exe
  • Size 17.1MB
  • Sample260503-tbwpfscy2v
  • SHA256 f943c5ef2fc3183307bf9ea8dc84d046830e1d700f5adf15f3d6ef6f5b9912f4
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Path
  • C:\$Recycle.Bin\KRAB-DECRYPT.txt

Ransom Note
  • ---= GANDCRAB V4 =--- Attention! All your files, documents, photos, databases and other important files are encrypted and have the extension: .KRAB The only method of recovering files is to purchase an unique private key. Only we can give you this key and only we can recover your files. The server with your key is in a closed network TOR. You can get there by the following ways: ---------------------------------------------------------------------------------------- | 0. Download Tor browser - https://www.torproject.org/ | 1. Install Tor browser | 2. Open Tor Browser | 3. Open link in TOR browser: http://gandcrabmfe6mnef.onion/be9cde35fabd717 | 4. Follow the instructions on this page ---------------------------------------------------------------------------------------- On our page you will see instructions on payment and get the opportunity to decrypt 1 file for free. ATTENTION! IN ORDER TO PREVENT DATA DAMAGE: * DO NOT MODIFY ENCRYPTED FILES * DO NOT CHANGE DATA BELOW ---BEGIN GANDCRAB KEY--- lAQAADdMITG7j/MOh0xjv15Ce2puqxhvqxBjib8yeic5bovhIKsjKduh1aZAi/hw42O+FyphVW6Hb4G1fazGDey5ZQ5SIzNq36IRQkadwo144sC+u2bwH9ywXj475Dfoe5WBjsqoJS7K/SiUb6oitcE14OnOnFDB6VWdtbfIpvQhm8/q1oQ4Dp810xdZLeL6f9BJ1DkrCcSFvq4B/cA38v3a6vu1zSGJcZmjzf+MmtNCoE/kDx6KIq8F4CzmoktRymoWfFDp/TyqJUBSvgmlpcDVF/5K9BrwkKeHf2642YS7veScpb/NSQrhfi9Vbg6ZOX/L50TSaPobBvQJmEbB79RvUyIjiIISu+5Si6C2VoRQ43Ianqwy8T/L+0Kdq25vF9Sg3lW73Am222vhB2npS8Eq6bcF3fUpZXGXiHv3rnIdri2Ml10i/ZxWtuDxki57EPt2rKW96eMa08giuUadfAuBHHDV1BM3QkIHRug6dIu+dEt5DVV0dy+3QH6wsGgDtXCF2Fgy3sNyOfnvLSVxyb2QzXu1Ff4o0Qz0coyhVhuDSnhS8K/Kmof/3+kJpPmDAMZMcUvnQ4kelKLW1g8Zl9ZdlzpjHhJ46Vd3Y8E6oGdm4vk0dtoRaINnQAKPSt3aBxja2apYgfYYRn6tOuhrJQ/5wrtvI/YIgfcfcoFrocek0LCvgNXlzPhD7eKC2b2mRT731nSf61YR54mpz/IpEjui2h7kWlEY12SvPxPXy5Tq1qZmZCt7mIT8GpGF8XXLbGrYxH9662eJih2kvxf0M8eRstBu6rYJLvMyNfrFUe0GxDWvE7aOesyJdhwhy+fnCEn0iVxmvqV/x7FyjMU42m/f/ny0jslRsTRQTfL/Rr7kncei73SwxOLpB9MVH2Uu9uxesiB1lOwMTZucU7OpJlTnqVj9Zhos+vkXW/cFUT1VDB4RJpEfe8cFzXg3KfYZkRSz2f8fUBbeydHK5tBNB1nxHeGU6nlKptYj24397xhvgOdCfizBM+1TogbXBNWzqmoXUMtyRRGgvjbrzoeY22oRTrBc/r2p2leKUSN7s342ATIkctq8HdEw43xtziyNWc/rJxBrLWdDtyCUWelijdHr2FPhGFCgqKCP5U6+Yj+zzeWPe6WbZYZFRLMqYYSTFvHSMlE77jOdLuggnu3DwN6/scd9zvdH6KE64LFEUeDwqbzSI6nfSxS0aif2JUIrhqh57Iftkmq29Lw0RyaxvHSTpSWaMrwyhaF90U5MQlRq5iYOJoF1ZRoWwSBgtKIsRoKVo6I7Yjjf4j3KWg1ESyTNhNha6VEDfGqbvNYNGf0tgOJvnMwPb+yyyJQrk6dLg7bRKsYgQrOkMS/7YWYJzgx+UnOIXil7ONbrh50Pl0t+59Ac+lMR84yKFu7OxdK1BR0LigjogUDdb4uaqzJHCFa0M2DgxR7yCIzfwEX00q07cJ7EnDPYNQGgBvUCc5b/GWGywuG9g/uI76gULzRIoTpz3ODU/bauSWb6KzMt9yqVgQvUe7CyumVV8vuzPZ058WkkHReXQUmYUXQCVkT5pxEZSqcoNOR46iMTyqvZLrgIo5RO5+GddAGjlgd1jIfBZ/GFOVcBXTvKjKrpJl51j9QpzZ7/MbhwJwoEXfYE7sQ5ebGzGOvrhag0KYTPFGFlb9uYEIvjTPMncNeQIZMBNnzA83wu+UvNoKTGC+c9rp+hXmRR/08YEDk1V/tI6zWdcFPGl/ZxhUCA7/EZJobP+Ni9hnnzbsAvYQPl3oMkGpVc/8+QCE/P6byw9lcd3DVzMDVrLuRQmlO/RN27L0+iA4/22rTk//wrEYZ4bY8p6TnKjALfvTSuJ8hzt3penhR0OEwaYuO83j4qybfDTBFks2jtz+1aWKX2IQje3Gloa5lLPWN2qQwob/Fg+Dx81RW5KJn91vGQlQWCpNe3RFVnSbrYMSfCneLAUO98aOfQ/0mGEV+wzi700XTIpaLfsDLDnvdaT6k0+2XzkWXBoRdmrwAwhZs3ceJdRZsMKbCgnCVudrkqi/3NR7JnG+6R7w9ZdPwt1t7W4E0zZ+YOc2PUXWSespRkPoHqSaD1ZCK6gJzx2kSHVHj4KtgN8PtwLDm0N64LK4L6LG7OhA4doJRmJRKtIrA8Wfef1qZyA7cNToAV8eaemzl6IpbKOHE0/dx+0yomquOVB5ICcUiHUQllpX3vNNNoyD5WU5BQLxLn/Vckbv2ACHtzdaWFkwHqeO9K/Wq6HF+/+3A= ---END GANDCRAB KEY--- ---BEGIN PC DATA--- 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 ---END PC DATA---
URLs
  • http://gandcrabmfe6mnef.onion/be9cde35fabd717

Signatures

  • Family: Gandcrab

    Gandcrab is a Trojan horse that encrypts files on a computer.

  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Detects ransomware indicator 3 IoCs
  • Enumerates VirtualBox DLL files 2 TTPs 3 IoCs
  • Enumerates VirtualBox registry keys 2 TTPs 2 IoCs
  • Gandcrab Payload 3 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Looks for VirtualBox drivers on disk 2 TTPs 2 IoCs
  • Renames multiple (543) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Looks for VMWare drivers on disk 2 TTPs 2 IoCs
  • Looks for VMWare services registry key. 1 TTPs 2 IoCs
  • Credentials from Password Stores: Windows Credential Manager 1 TTPs

    Suspicious access to Credentials History.

  • Drops startup file 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 27 IoCs
  • 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.

  • 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 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs
  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-05-03_aa628df8564ddea05e686aca16c80ba1_akira_elex_glassworm.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-03_aa628df8564ddea05e686aca16c80ba1_akira_elex_glassworm.exe"
    1⤵
    • Enumerates VirtualBox DLL files
    • Enumerates VirtualBox registry keys
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VirtualBox drivers on disk
    • Looks for VMWare Tools registry key
    • Looks for VMWare drivers on disk
    • Looks for VMWare services registry key.
    • Drops startup file
    • Enumerates connected drives
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:5224
    • C:\Windows\SysWOW64\wbem\wmic.exe
      "C:\Windows\system32\wbem\wmic.exe" shadowcopy delete
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:1660
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:660

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        KRAB-DECRYPT.txt

        • Path C:\$Recycle.Bin\KRAB-DECRYPT.txt
        • Size 8KB
        • SHA256 6ccde0233aea99408803796210936b5343443cec8f9e7c119e2d2613c42bcfd4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        svc_677947ae.log

        • Path C:\ProgramData\svc_677947ae.log
        • Size 602B
        • SHA256 a206f6d28512eecc12b624a1d5dff92bc7e72636e3fbbafd84910e3f6005d620
        • MD5 SHA1 SHA512 TLSH

        svc_677947ae.log

        • Path C:\ProgramData\svc_677947ae.log
        • Size 1016B
        • SHA256 73a27480042ebc9bb00cf72926d9579367ef3669c8b2e1de30b489cca338cf1f
        • MD5 SHA1 SHA512 TLSH

        svc_677947ae.log

        • Path C:\ProgramData\svc_677947ae.log
        • Size 403B
        • SHA256 6642e1238f434e33a37fa05cfa763a337ebb9251bdf82359b2e7c531ab16730a
        • MD5 SHA1 SHA512 TLSH

        memory/5224-14-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/5224-34-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/5224-35-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/5224-1323-0x0000000000270000-0x0000000000396000-memory.dmp

        memory/5224-1324-0x0000000001390000-0x000000000140B000-memory.dmp

        memory/5224-1328-0x0000000004AE0000-0x0000000004C2D000-memory.dmp