Analysis

  • max time kernel
    149s
  • max time network
    116s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250502-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250502-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/05/2025, 06:04

General

  • Target
    5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
  • Size 669KB
  • Sample250504-gspagsen21
  • SHA256 5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Path
  • C:\ProgramData\_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 (174) 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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops desktop.ini file(s) 25 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.

  • UPX packed file 4 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 5 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • 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
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2608
    • C:\Windows\SysWOW64\icacls.exe
      icacls "C:\Users\Admin\AppData\Local\9e6ffc58-1a59-4eb6-9df9-f342707f958b" /deny *S-1-1-0:(OI)(CI)(DE,DC)
      2⤵
      • Modifies file permissions
      • System Location Discovery: System Language Discovery
      PID:3984
    • 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)
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3492
      • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
        "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --ForNetRes "FsnDCf1u1wJvLcqbFxxtOchBf2V2lgtk24oM5mt2" 0h7mFQcjRC3pDgsRcrWZ7K7bdAgvgDos224DmXt1 IsNotAutoStart IsNotTask
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1068
        • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
          "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --Service 1068 "FsnDCf1u1wJvLcqbFxxtOchBf2V2lgtk24oM5mt2" 0h7mFQcjRC3pDgsRcrWZ7K7bdAgvgDos224DmXt1
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:2136
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 2136 -s 1620
            5⤵
            • Program crash
            PID:3244
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1068 -s 1688
          4⤵
          • Program crash
          PID:1156
      • C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
        "C:\Users\Admin\AppData\Local\Temp\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe" --Service 3492 "FsnDCf1u1wJvLcqbFxxtOchBf2V2lgtk24oM5mt2" 0h7mFQcjRC3pDgsRcrWZ7K7bdAgvgDos224DmXt1
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:1516
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1516 -s 1080
          4⤵
          • Program crash
          PID:2232
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3492 -s 1620
        3⤵
        • Program crash
        PID:1696
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2608 -s 1216
      2⤵
      • Program crash
      PID:1332
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2608 -ip 2608
    1⤵
      PID:4912
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2136 -ip 2136
      1⤵
        PID:372
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1068 -ip 1068
        1⤵
          PID:4792
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 576 -p 1516 -ip 1516
          1⤵
            PID:1852
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 3492 -ip 3492
            1⤵
              PID:2688

            Network

                  MITRE ATT&CK Enterprise v16

                  Replay Monitor

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                  Downloads

                  edbtmp.log

                  • Path C:\ProgramData\Microsoft\Network\Downloader\edbtmp.log
                  • Size 1.3MB
                  • SHA256 7bd4646090dff9875e08ea00e5727b11be19fcb850344856e66360c152835694
                  • MD5 SHA1 SHA512 SSDEEP

                  dotnet-host-6.0.27-win-x64.msi

                  • Path C:\ProgramData\Package Cache\{3A96B93E-763F-41E7-85C7-1F3CCC37EF27}v48.108.8828\dotnet-host-6.0.27-win-x64.msi
                  • Size 736KB
                  • SHA256 f4f6d008e54b5a6bac3998fc3fe8e632c347d6b598813e3524d5489b84bd2eaf
                  • MD5 SHA1 SHA512 SSDEEP

                  vc_runtimeMinimum_x64.msi

                  • Path C:\ProgramData\Package Cache\{662A0088-6FCD-45DD-9EA7-68674058AED5}v14.30.30704\packages\vcRuntimeMinimum_amd64\vc_runtimeMinimum_x64.msi
                  • Size 180KB
                  • SHA256 889217bcb971387bc3cb6d76554646d2b0822eceb102320d40adf2422c829128
                  • MD5 SHA1 SHA512 SSDEEP

                  dotnet-runtime-7.0.16-win-x64.msi

                  • Path C:\ProgramData\Package Cache\{CE4D7AE0-FCBA-486F-A58F-DBA3626FBE4B}v56.64.8781\dotnet-runtime-7.0.16-win-x64.msi
                  • Size 3.9MB
                  • SHA256 50f268e3903c47b37d14bb4217681303756e7f4669488c7121d596767d14a220
                  • MD5 SHA1 SHA512 SSDEEP

                  windowsdesktop-runtime-6.0.27-win-x64.msi

                  • Path C:\ProgramData\Package Cache\{E634F316-BEB6-4FB3-A612-F7102F576165}v48.108.8836\windowsdesktop-runtime-6.0.27-win-x64.msi
                  • Size 2.9MB
                  • SHA256 ee04e87dad2a315ea4cbd63c9145b6bd23623d8ca77adc891e45f3ab0922dcdd
                  • MD5 SHA1 SHA512 SSDEEP

                  _readme.txt

                  • Path C:\ProgramData\_readme.txt
                  • Size 1KB
                  • SHA256 163ec5b903b6baadd32d560c44c1ea4dce241579a7493eb32c632eae9085d508
                  • MD5 SHA1 SHA512

                  8B2B9A00839EED1DFDCCC3BFC2F5DF12

                  • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8B2B9A00839EED1DFDCCC3BFC2F5DF12
                  • Size 1KB
                  • SHA256 fb6a7c3edcd7b97fabc18855102a39fc4d6d3f82c0fdd39b1667807b71b9c49b
                  • MD5 SHA1 SHA512

                  B46811C17859FFB409CF0E904A4AA8F8

                  • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8
                  • Size 530B
                  • SHA256 6fb1b8e593cb0388f67ead35313a230f524657317ea86271b3a97362e5ec6ad9
                  • MD5 SHA1 SHA512

                  8B2B9A00839EED1DFDCCC3BFC2F5DF12

                  • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12
                  • Size 174B
                  • SHA256 df6d759566b065e985ce9f04ed4720da5187a6365104e4defaa698cf72d12249
                  • MD5 SHA1 SHA512

                  B46811C17859FFB409CF0E904A4AA8F8

                  • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
                  • Size 170B
                  • SHA256 3524ff541c7049824f5648da573605a6aaebe9787e4186fde3f23d8eef730fc2
                  • MD5 SHA1 SHA512

                  5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe

                  • Path C:\Users\Admin\AppData\Local\9e6ffc58-1a59-4eb6-9df9-f342707f958b\5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18.exe
                  • Size 669KB
                  • SHA256 5da0116af495e6d8af7241da9b8281d918b9ff9a98a3deab4cca1aec1e456c18
                  • MD5 SHA1 SHA512 SSDEEP

                  memory/1068-37-0x0000000000400000-0x00000000004A9000-memory.dmp

                  memory/1068-26-0x0000000000400000-0x00000000004A9000-memory.dmp

                  memory/1068-27-0x0000000000400000-0x00000000004A9000-memory.dmp

                  memory/1068-29-0x0000000000400000-0x00000000004A9000-memory.dmp

                  memory/1516-32-0x0000000000400000-0x00000000004A9000-memory.dmp

                  memory/1516-1203-0x0000000000400000-0x00000000004A9000-memory.dmp

                  memory/2136-36-0x0000000000400000-0x00000000004A9000-memory.dmp

                  memory/2136-35-0x0000000000400000-0x00000000004A9000-memory.dmp

                  memory/2608-0-0x0000000000400000-0x00000000004A9000-memory.dmp

                  memory/2608-13-0x0000000000400000-0x00000000004A9000-memory.dmp

                  memory/2608-14-0x0000000000400000-0x0000000000476000-memory.dmp

                  memory/2608-3-0x0000000000400000-0x0000000000476000-memory.dmp

                  memory/2608-2-0x0000000000740000-0x0000000000840000-memory.dmp

                  memory/3492-31-0x0000000000400000-0x00000000004A9000-memory.dmp

                  memory/3492-22-0x0000000000400000-0x00000000004A9000-memory.dmp

                  memory/3492-17-0x0000000000400000-0x00000000004A9000-memory.dmp

                  memory/3492-16-0x0000000000400000-0x00000000004A9000-memory.dmp

                  memory/3492-24-0x0000000000400000-0x00000000004A9000-memory.dmp

                  memory/3492-1205-0x0000000000400000-0x00000000004A9000-memory.dmp