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Overview

overview

10

Static

static

10

965c22cf88...ca.exe

windows7-x64

10

965c22cf88...ca.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    112s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/10/2022, 01:20

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General

  • Target

    965c22cf88a29074e71fc6a6492f15c680ad8e83f6d7bf1eebb3da6efc4768ca.exe

  • Size

    27KB

  • MD5

    e17a9ca3daf0d53d72ef4e1a8142b57b

  • SHA1

    467e882bb8381a22100b6f573b02725520bab3b6

  • SHA256

    965c22cf88a29074e71fc6a6492f15c680ad8e83f6d7bf1eebb3da6efc4768ca

  • SHA512

    a62903017bb718e5b0a601900b4b9e0f9e6b507ca28670da2bd4e3c31491000bdd29453d814de5b1b0b16c0623352d2861ecf9247272791e58a26189df1f827d

  • SSDEEP

    384:ltWZPzzxAm1vqQ1HPEWx0OeuBbholQOy5o914R99SP82vW:M7zxAmL1HP70Oeu1rho9Gxm82+

Score
10/10
chaospersistenceransomwarespywarestealer

Malware Config

Extracted

Path

C:\odt\Entschlüsseln.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 e-mail :[email protected] ( 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 3 IoCs
  • Executes dropped EXE 1 IoCs
  • Modifies extensions of user files 18 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Drops startup file 2 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 1 IoCs
    persistence
  • Drops desktop.ini file(s) 64 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 50 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\965c22cf88a29074e71fc6a6492f15c680ad8e83f6d7bf1eebb3da6efc4768ca.exe
    "C:\Users\Admin\AppData\Local\Temp\965c22cf88a29074e71fc6a6492f15c680ad8e83f6d7bf1eebb3da6efc4768ca.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3884
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.exe"
      2⤵
      • Executes dropped EXE
      • Modifies extensions of user files
      • Checks computer location settings
      • Drops startup file
      • Adds Run key to start application
      • Drops desktop.ini file(s)
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2004
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\Entschlüsseln.txt
        3⤵
          PID:1500

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\965c22cf88a29074e71fc6a6492f15c680ad8e83f6d7bf1eebb3da6efc4768ca.exe.log
      Filesize

      1KB

      MD5

      baf55b95da4a601229647f25dad12878

      SHA1

      abc16954ebfd213733c4493fc1910164d825cac8

      SHA256

      ee954c5d8156fd8890e582c716e5758ed9b33721258f10e758bdc31ccbcb1924

      SHA512

      24f502fedb1a305d0d7b08857ffc1db9b2359ff34e06d5748ecc84e35c985f29a20d9f0a533bea32d234ab37097ec0481620c63b14ac89b280e75e14d19fd545

      Download Submit

    • C:\Users\Admin\AppData\Roaming\Entschlüsseln.txt
      Filesize

      582B

      MD5

      ed5cc52876db869de48a4783069c2a5e

      SHA1

      a9d51ceaeff715ace430f9462ab2ee4e7f33e70e

      SHA256

      45726f2f29967ef016f8d556fb6468a577307d67388cc4530295a9ca10fdfa36

      SHA512

      1745aefb9b4db4cdd7c08ee3a7d133db08f35a336fd18b598211519b481ef25ac84a3e8a3da3db06caef9f531288d1cf0ca8d4b2560637945e7953e8b45421f5

      Download Submit

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

      27KB

      MD5

      e17a9ca3daf0d53d72ef4e1a8142b57b

      SHA1

      467e882bb8381a22100b6f573b02725520bab3b6

      SHA256

      965c22cf88a29074e71fc6a6492f15c680ad8e83f6d7bf1eebb3da6efc4768ca

      SHA512

      a62903017bb718e5b0a601900b4b9e0f9e6b507ca28670da2bd4e3c31491000bdd29453d814de5b1b0b16c0623352d2861ecf9247272791e58a26189df1f827d

      Download Submit

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

      27KB

      MD5

      e17a9ca3daf0d53d72ef4e1a8142b57b

      SHA1

      467e882bb8381a22100b6f573b02725520bab3b6

      SHA256

      965c22cf88a29074e71fc6a6492f15c680ad8e83f6d7bf1eebb3da6efc4768ca

      SHA512

      a62903017bb718e5b0a601900b4b9e0f9e6b507ca28670da2bd4e3c31491000bdd29453d814de5b1b0b16c0623352d2861ecf9247272791e58a26189df1f827d

      Download Submit

    • memory/2004-138-0x00007FFFE81E0000-0x00007FFFE8CA1000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/2004-142-0x00007FFFE81E0000-0x00007FFFE8CA1000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/3884-132-0x0000000000660000-0x000000000066E000-memory.dmp

      Filesize

      56KB

      Download

    • memory/3884-133-0x00007FFFE81E0000-0x00007FFFE8CA1000-memory.dmp

      Filesize

      10.8MB

      Download

    • memory/3884-137-0x00007FFFE81E0000-0x00007FFFE8CA1000-memory.dmp

      Filesize

      10.8MB

      Download