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01-07-2024 18:12

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Analysis

  • max time kernel
    150s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-07-2024 18:12

General

  • Target

    5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe

  • Size

    669KB

  • MD5

    ead18f3a909685922d7213714ea9a183

  • SHA1

    1270bd7fd62acc00447b30f066bb23f4745869bf

  • SHA256

    5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18

  • SHA512

    6e532d9c3d186e4dac38823ae9152056346e283613f0caf088b21a1b3e5f4f6cf3bad8c407168b1072895a386e3be0b8c11ad1cb326d3d3ff0eb8562052def91

  • SSDEEP

    6144:bLUHLyHlwFjxDi2nEZkQ4NXxp0XMgkBWPqdN/jGdfYY7SRA7j4YlvfYAAjJ:4uFi02nEZh4jp0XLuxGdgTm73vL

Malware Config

Extracted

Path

C:\Users\Public\Documents\_readme.txt

Ransom Note
ATTENTION! Don't worry my friend, you can return all your files! All your files like photos, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-T9WE5uiVT6 Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 046Sdsd3273yifhsisySD60h7mFQcjRC3pDgsRcrWZ7K7bdAgvgDos224DmXt1
URLs

https://we.tl/t-T9WE5uiVT6

Signatures

  • Renames multiple (66) files with added filename extension

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Modifies file permissions 1 TTPs 1 IoCs
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops desktop.ini file(s) 3 IoCs
  • Looks up external IP address via web service 6 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
    "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2688
    • C:\Windows\SysWOW64\icacls.exe
      icacls "C:\Users\Admin\AppData\Local\c613712d-9c3a-4a16-a5ca-1474b8d9a26b" /deny *S-1-1-0:(OI)(CI)(DE,DC)
      2⤵
      • Modifies file permissions
      PID:4172
    • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
      "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --Admin IsNotAutoStart IsNotTask
      2⤵
      • Drops desktop.ini file(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4808
      • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
        "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --ForNetRes "FsnDCf1u1wJvLcqbFxxtOchBf2V2lgtk24oM5mt2" 0h7mFQcjRC3pDgsRcrWZ7K7bdAgvgDos224DmXt1 IsNotAutoStart IsNotTask
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:3644
        • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
          "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --Service 3644 "FsnDCf1u1wJvLcqbFxxtOchBf2V2lgtk24oM5mt2" 0h7mFQcjRC3pDgsRcrWZ7K7bdAgvgDos224DmXt1
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:4916
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 4916 -s 1096
            5⤵
            • Program crash
            PID:4300
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3644 -s 1680
          4⤵
          • Program crash
          PID:2100
      • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
        "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --Service 4808 "FsnDCf1u1wJvLcqbFxxtOchBf2V2lgtk24oM5mt2" 0h7mFQcjRC3pDgsRcrWZ7K7bdAgvgDos224DmXt1
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:556
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2688 -s 1864
      2⤵
      • Program crash
      PID:2820
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2688 -ip 2688
    1⤵
      PID:1160
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4916 -ip 4916
      1⤵
        PID:4668
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 3644 -ip 3644
        1⤵
          PID:1264

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8B2B9A00839EED1DFDCCC3BFC2F5DF12

          Filesize

          1KB

          MD5

          2365869258df7a66a2121b802ca4afd9

          SHA1

          73acc30a2edeb9d6830de559bb8a74f35168135d

          SHA256

          d6b1932822bbd72a8e78c771717d992142348f67d625a42393719fefbe59b0ed

          SHA512

          795004bab536e128dbd81c188976d37c7b650efbfa5a80374df4c65a1049c27658f4620b7605583928eb167fcb69b4c99e4c8730c507b824a7bde9c7fb0e21f4

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8

          Filesize

          436B

          MD5

          1bfe0a81db078ea084ff82fe545176fe

          SHA1

          50b116f578bd272922fa8eae94f7b02fd3b88384

          SHA256

          5ba8817f13eee00e75158bad93076ab474a068c6b52686579e0f728fda68499f

          SHA512

          37c582f3f09f8d80529608c09041295d1644bcc9de6fb8c4669b05339b0dd870f9525abc5eed53ad06a94b51441275504bc943c336c5beb63b53460ba836ca8d

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12

          Filesize

          174B

          MD5

          b3d843a7c016ee388e5f352e83a62023

          SHA1

          9a47947f90f06ab6c5cfe9290ecbfd0012b329bb

          SHA256

          bcac6c7da7482bce3d2b1f7b31369325bf17d8f334d12b2e1296a9f266311302

          SHA512

          291c76a707d6659390fe485687198d0cd3b08ec75e39157f87192464a0416c3da32da6c7733e0cbcc826299e9162da09682cfac630267e874d9890e8fc099020

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8

          Filesize

          170B

          MD5

          5bc6bd827e9bb690a70f4a8a8ab2c624

          SHA1

          f2ffe41efeb810a18e0d3253df38c73e7ca25fa9

          SHA256

          5877f1715a0a35ef1206e407d1b0db202898a6b77fe9ec05ba1b284bd64bb8c6

          SHA512

          2b027b0ab8a990cb4a5e8e6cb7e22011c56d533d07849a8f49141d815ee454ca7e85df09a446790bf4a3aab0056e82f151f169dc0ce078ce3c334aa1984a5159

        • C:\Users\Admin\AppData\Local\c613712d-9c3a-4a16-a5ca-1474b8d9a26b\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe

          Filesize

          669KB

          MD5

          ead18f3a909685922d7213714ea9a183

          SHA1

          1270bd7fd62acc00447b30f066bb23f4745869bf

          SHA256

          5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18

          SHA512

          6e532d9c3d186e4dac38823ae9152056346e283613f0caf088b21a1b3e5f4f6cf3bad8c407168b1072895a386e3be0b8c11ad1cb326d3d3ff0eb8562052def91

        • C:\Users\Public\Documents\_readme.txt

          Filesize

          1KB

          MD5

          d75064cfaac9c92f52aadf373dc7e463

          SHA1

          36ea05181d9b037694929ec81f276f13c7d2655c

          SHA256

          163ec5b903b6baadd32d560c44c1ea4dce241579a7493eb32c632eae9085d508

          SHA512

          43387299749f31c623c5dd4a53ff4d2eff5edfeb80fd4e2edd45860b5c9367d2767ae2ee9b60824b57301999dd2bd995b7d3bd5e7187e447aed76106272559d1

        • memory/556-27-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/556-35-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/2688-13-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/2688-0-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/2688-14-0x0000000000400000-0x0000000000476000-memory.dmp

          Filesize

          472KB

        • memory/2688-3-0x0000000000400000-0x0000000000476000-memory.dmp

          Filesize

          472KB

        • memory/2688-2-0x0000000000630000-0x0000000000730000-memory.dmp

          Filesize

          1024KB

        • memory/3644-29-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/3644-39-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/3644-34-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/3644-25-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/3644-30-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/4808-16-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/4808-26-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/4808-32-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/4808-24-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/4808-23-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/4808-22-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/4808-17-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/4916-37-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/4916-38-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB