Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-05-2024 11:08

General

  • Target

    418883200e3ba973c65013588c714abfa984e8fe1d9bc3697bb7796089ab9fbd.exe

  • Size

    373KB

  • MD5

    cd0795c8b2bb7a19e10f06f8d23face4

  • SHA1

    3e73188e446dcdc5796fc904e8bb6768a787a9e0

  • SHA256

    418883200e3ba973c65013588c714abfa984e8fe1d9bc3697bb7796089ab9fbd

  • SHA512

    4ebd157f5ceb4cf98c6e417ab38c547c4684c3063cc8cd3b6af47d6f5d2615257ac944a4bddc312dffeac6ee4ee4d55090f9cc5f973976e29ddf14775c3d30a7

  • SSDEEP

    6144:4u3961zes6RBIkXi5ts0lnt4Zz4ByevEPzgpDxceGxImYMSbf/mEmbwX5elm7Dm:DJrB3SRt4ZzEiPzaFceG2DDX0F

Malware Config

Extracted

Path

C:\ProgramData\readme.txt

Family

conti

Ransom Note
All of your files are currently encrypted by CONTI strain. As you know (if you don't - just "google it"), all of the data that has been encrypted by our software cannot be recovered by any means without contacting our team directly. If you try to use any additional recovery software - the files might be damaged, so if you are willing to try - try it on the data of the lowest value. To make sure that we REALLY CAN get your data back - we offer you to decrypt 2 random files completely free of charge. You can contact our team directly for further instructions through our website : TOR VERSION : (you should download and install TOR browser first https://torproject.org) http://contirec7nchr45rx6ympez5rjldibnqzh7lsa56lvjvaeywhvoj3wad.onion/jehZ00C9PrzdBeD0vmBk8EYUAmCctYHBJazVJraQGUMWmkWoaDUcndRgCHzKGsz5 YOU SHOULD BE AWARE! Just in case, if you try to ignore us. We've downloaded a pack of your internal data and are ready to publish it on out news website if you do not respond. So it will be better for both sides if you contact us as soon as possible. ---BEGIN ID--- jehZ00C9PrzdBeD0vmBk8EYUAmCctYHBJazVJraQGUMWmkWoaDUcndRgCHzKGsz5 ---END ID---
URLs

http://contirec7nchr45rx6ympez5rjldibnqzh7lsa56lvjvaeywhvoj3wad.onion/jehZ00C9PrzdBeD0vmBk8EYUAmCctYHBJazVJraQGUMWmkWoaDUcndRgCHzKGsz5

Signatures

  • Conti Ransomware

    Ransomware generally thought to be a successor to Ryuk.

  • Renames multiple (7351) files with added filename extension

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

  • Drops startup file 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Drops desktop.ini file(s) 31 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of WriteProcessMemory 4 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\418883200e3ba973c65013588c714abfa984e8fe1d9bc3697bb7796089ab9fbd.exe
    "C:\Users\Admin\AppData\Local\Temp\418883200e3ba973c65013588c714abfa984e8fe1d9bc3697bb7796089ab9fbd.exe"
    1⤵
    • Drops startup file
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4776
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{7F894500-B0D1-4FCE-86B1-EF282AFF96BE}'" delete
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:848
      • C:\Windows\System32\wbem\WMIC.exe
        C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{7F894500-B0D1-4FCE-86B1-EF282AFF96BE}'" delete
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:3916
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1580

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\readme.txt

    Filesize

    1KB

    MD5

    d37ef45fe5c6586a80321288d58a5781

    SHA1

    9dfec63a05fff0bbd0b4098359ba955fe60cb760

    SHA256

    b88d37ddce9f4fcf798faaa27741331bec4cea80cdf0f287504e4238dae55259

    SHA512

    a709f8dd5d570e922901b9f7206e57f7631f85bebb4ad4861c7efb16cfe6ed911ee516b89d2f3a8a07524d63c364220171fe54910df2887537f3b3de73d5fe76

  • memory/4776-4-0x00000000020E0000-0x000000000211C000-memory.dmp

    Filesize

    240KB

  • memory/4776-18442-0x00000000020E0000-0x000000000211C000-memory.dmp

    Filesize

    240KB

  • memory/4776-9-0x0000000000400000-0x0000000000449000-memory.dmp

    Filesize

    292KB

  • memory/4776-5-0x0000000000401000-0x0000000000423000-memory.dmp

    Filesize

    136KB

  • memory/4776-0-0x0000000000400000-0x0000000000449000-memory.dmp

    Filesize

    292KB

  • memory/4776-3-0x0000000000610000-0x0000000000611000-memory.dmp

    Filesize

    4KB

  • memory/4776-1-0x0000000000400000-0x0000000000449000-memory.dmp

    Filesize

    292KB

  • memory/4776-8-0x0000000000400000-0x0000000000449000-memory.dmp

    Filesize

    292KB

  • memory/4776-6-0x0000000000400000-0x0000000000449000-memory.dmp

    Filesize

    292KB

  • memory/4776-7-0x0000000000400000-0x0000000000449000-memory.dmp

    Filesize

    292KB

  • memory/4776-7064-0x0000000000401000-0x0000000000423000-memory.dmp

    Filesize

    136KB

  • memory/4776-3585-0x0000000000400000-0x0000000000449000-memory.dmp

    Filesize

    292KB

  • memory/4776-7061-0x00000000020E0000-0x000000000211C000-memory.dmp

    Filesize

    240KB

  • memory/4776-7045-0x0000000000400000-0x0000000000449000-memory.dmp

    Filesize

    292KB

  • memory/4776-12210-0x0000000000400000-0x0000000000449000-memory.dmp

    Filesize

    292KB

  • memory/4776-18440-0x0000000000400000-0x0000000000449000-memory.dmp

    Filesize

    292KB

  • memory/4776-18441-0x0000000000400000-0x0000000000449000-memory.dmp

    Filesize

    292KB

  • memory/4776-18443-0x0000000000401000-0x0000000000423000-memory.dmp

    Filesize

    136KB

  • memory/4776-2-0x0000000000400000-0x0000000000449000-memory.dmp

    Filesize

    292KB