Analysis

  • max time kernel
    87s
  • max time network
    169s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    01-02-2022 16:01

General

  • Target

    c7e52cc6f1f659ec5d30473e89b7136216de5fbe53ec77a62f1a486d8ffe78ed.exe

  • Size

    100KB

  • MD5

    bb0a17a7e856d61bd43c62a822d96b07

  • SHA1

    aca43b3ca96ca6c80219d9e4ed8d498001313c5e

  • SHA256

    c7e52cc6f1f659ec5d30473e89b7136216de5fbe53ec77a62f1a486d8ffe78ed

  • SHA512

    8ee7b45476d3efdfdf3161c474c347b39a954ae04042f8f9b5a0a2db7291982a253c924d0668d942c253fd7c25fda7a3270cfaacd00de2a960d8065bb5c01f77

Malware Config

Extracted

Path

C:\ClopReadMe.txt

Family

clop

Ransom Note
Your network has been penetrated. All files on each host in the network have been encrypted with a strong algorithm. Backups were either encrypted or deleted or backup disks were formatted. Shadow copies also removed, so F8 or any other methods may damage encrypted data but not recover. We exclusively have decryption software for your situation No decryption software is available in the public. DO NOT RESET OR SHUTDOWN – files may be damaged. DO NOT RENAME OR MOVE the encrypted and readme files. DO NOT DELETE readme files. This may lead to the impossibility of recovery of the certain files. Photorec, RannohDecryptor etc. repair tools are useless and can destroy your files irreversibly. If you want to restore your files write to emails (contacts are at the bottom of the sheet) and attach 2-3 encrypted files (Less than 5 Mb each, non-archived and your files should not contain valuable information (Databases, backups, large excel sheets, etc.)). You will receive decrypted samples and our conditions how to get the decoder. Attention!!! Your warranty - decrypted samples. Do not rename encrypted files. Do not try to decrypt your data using third party software. We don`t need your files and your information. But after 2 weeks all your files and keys will be deleted automatically. Contact emails: [email protected] or [email protected] The final price depends on how fast you write to us. Clop

Signatures

  • Clop

    Ransomware discovered in early 2019 which has been actively developed since release.

  • Modifies extensions of user files 8 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Sets service image path in registry 2 TTPs
  • Drops desktop.ini file(s) 23 IoCs
  • Enumerates connected drives 3 TTPs 24 IoCs

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

  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 7 IoCs
  • Modifies data under HKEY_USERS 41 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c7e52cc6f1f659ec5d30473e89b7136216de5fbe53ec77a62f1a486d8ffe78ed.exe
    "C:\Users\Admin\AppData\Local\Temp\c7e52cc6f1f659ec5d30473e89b7136216de5fbe53ec77a62f1a486d8ffe78ed.exe"
    1⤵
    • Modifies extensions of user files
    • Drops desktop.ini file(s)
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    PID:4192
  • C:\Windows\System32\WaaSMedicAgent.exe
    C:\Windows\System32\WaaSMedicAgent.exe 0a142632ba6c40d5221ead9bd27eeff0 b6eUj2fH2UaHpG6f1e9LbA.0.1.0.0.0
    1⤵
    • Modifies data under HKEY_USERS
    PID:4952
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:1528

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1528-173-0x000001ACF8D60000-0x000001ACF8D70000-memory.dmp

    Filesize

    64KB

  • memory/1528-174-0x000001ACF95E0000-0x000001ACF95F0000-memory.dmp

    Filesize

    64KB

  • memory/1528-175-0x000001ACFBAE0000-0x000001ACFBAE4000-memory.dmp

    Filesize

    16KB