Analysis

  • max time kernel
    68s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/11/2022, 01:10

General

  • Target

    adee78b270b8e56e775dd70f6b39a3bc44a3eabcbe9b55310f62cfc9da6a2b9c.exe

  • Size

    791KB

  • MD5

    5a5c792332fe31927128e7450ee4f3df

  • SHA1

    d5e09b9c8f7b6a15cdb12555133fddd02b5d724c

  • SHA256

    adee78b270b8e56e775dd70f6b39a3bc44a3eabcbe9b55310f62cfc9da6a2b9c

  • SHA512

    8e4f58d1ba79436b3bf973c4d8757314b47d03189cde022bfa8de75d9cb165d28e8b6af17f950e87d9b5b5d2ab7023b12f4fa36a7f182b3e37fa5fc85741c8a2

  • SSDEEP

    24576:Cf1FlWt4bS8CjhtSDUmVXWcJNbxH9w7i:C9rWt1htSDzVRbxmi

Malware Config

Extracted

Family

djvu

C2

http://fresherlights.com/test1/get.php

Attributes
  • extension

    .bowd

  • offline_id

    oHp5e4SJxdFtxfvKYmeX06F4C5cn0EcsF5Ak9Wt1

  • payload_url

    http://uaery.top/dl/build2.exe

    http://fresherlights.com/files/1/build3.exe

  • ransomnote

    ATTENTION! Don't worry, you can return all your files! All your files like pictures, 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-dyi5UcwIT9 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" or "Junk" 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: 0594Jhyjd

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 10 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Loads dropped DLL 3 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Looks up external IP address via web service 3 IoCs

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

  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 44 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\adee78b270b8e56e775dd70f6b39a3bc44a3eabcbe9b55310f62cfc9da6a2b9c.exe
    "C:\Users\Admin\AppData\Local\Temp\adee78b270b8e56e775dd70f6b39a3bc44a3eabcbe9b55310f62cfc9da6a2b9c.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1556
    • C:\Users\Admin\AppData\Local\Temp\adee78b270b8e56e775dd70f6b39a3bc44a3eabcbe9b55310f62cfc9da6a2b9c.exe
      "C:\Users\Admin\AppData\Local\Temp\adee78b270b8e56e775dd70f6b39a3bc44a3eabcbe9b55310f62cfc9da6a2b9c.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4992
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\bdb58274-cf3d-4f4d-beec-1202e97218e1" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:3364
      • C:\Users\Admin\AppData\Local\Temp\adee78b270b8e56e775dd70f6b39a3bc44a3eabcbe9b55310f62cfc9da6a2b9c.exe
        "C:\Users\Admin\AppData\Local\Temp\adee78b270b8e56e775dd70f6b39a3bc44a3eabcbe9b55310f62cfc9da6a2b9c.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4720
        • C:\Users\Admin\AppData\Local\Temp\adee78b270b8e56e775dd70f6b39a3bc44a3eabcbe9b55310f62cfc9da6a2b9c.exe
          "C:\Users\Admin\AppData\Local\Temp\adee78b270b8e56e775dd70f6b39a3bc44a3eabcbe9b55310f62cfc9da6a2b9c.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2196
          • C:\Users\Admin\AppData\Local\48ff3f30-ef28-431f-853a-b42d9e3620ec\build2.exe
            "C:\Users\Admin\AppData\Local\48ff3f30-ef28-431f-853a-b42d9e3620ec\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:3452
            • C:\Users\Admin\AppData\Local\48ff3f30-ef28-431f-853a-b42d9e3620ec\build2.exe
              "C:\Users\Admin\AppData\Local\48ff3f30-ef28-431f-853a-b42d9e3620ec\build2.exe"
              6⤵
              • Executes dropped EXE
              • Checks computer location settings
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:4004
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\48ff3f30-ef28-431f-853a-b42d9e3620ec\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:3140
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:4300

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\ProgramData\mozglue.dll

    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • C:\ProgramData\nss3.dll

    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • C:\ProgramData\sqlite3.dll

    Filesize

    1.1MB

    MD5

    1f44d4d3087c2b202cf9c90ee9d04b0f

    SHA1

    106a3ebc9e39ab6ddb3ff987efb6527c956f192d

    SHA256

    4841020c8bd06b08fde6e44cbe2e2ab33439e1c8368e936ec5b00dc0584f7260

    SHA512

    b614c72a3c1ce681ebffa628e29aa50275cc80ca9267380960c5198ea4d0a3f2df6cfb7275491d220bad72f14fc94e6656501e9a061d102fb11e00cfda2beb45

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

    Filesize

    2KB

    MD5

    1a295f69dfd5c6f54042f8bc5b31a6af

    SHA1

    d2b64e2902114ce584f382cbd78b06354b6b14f7

    SHA256

    b14043ac188588e6e6282e515cc581ca0aaae5fbf84a0cf087204bae7fcdad55

    SHA512

    3ed6b02a4b6f723f5ca54e78e2c787e5670cc7bec3e3517e06fdc57afe966fbb62b3702bf6cc6a903fd8ef83ea6f79949018e35b7ca4d93cd3f8e865bc2e724f

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

    Filesize

    1KB

    MD5

    136889ac23008bfdfefb91c9e5d8a11d

    SHA1

    8343b8ef34dc565eda256e042b43064cb8017131

    SHA256

    35188ecd41bd046f9f71e26f5404d5406be5e20bf8f2b6963adaec084783bef5

    SHA512

    b19722ef132c9169aa442b87f633f915934a51ea4164c674864aaffe4b01dd7ad6b7488450ca14b6d1467eb231e6941cad0aab29733ae4fa6b7df7d2a2f75bdb

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

    Filesize

    488B

    MD5

    16339d537d1cfa948385ea782e52ad2c

    SHA1

    7dfb051ad4160b3949a6255f7d496a313a296a6f

    SHA256

    16159262516d4d69fdcbe832f997dd2d0349a55631d960c4c2220a64a17d6f14

    SHA512

    9a8b0ba2e347a9d55e17eeb5af16a4cc2d3ebc0211d670f8ad12a712f8f33a0b917129313b1bf70b1e59d6a671dd0a656b660af38d77b99ed37cb9d8bb5de5c5

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

    Filesize

    482B

    MD5

    2b4405d7ad92654e28d0872925a35d78

    SHA1

    4199ed61b1aee820c30292764295ae1855c71cf2

    SHA256

    24f0ac4594098fd4d147bca13f64f7b84f8e6c7aa68e02cdba9966b1542471f9

    SHA512

    c55d562e6e4bf56126aab2b4677237c9b14b804b620178909714fe0592f39a148f862a96c85d20a04dca830d208004e69f433545f9395fbd25d95c85add72b74

  • C:\Users\Admin\AppData\Local\48ff3f30-ef28-431f-853a-b42d9e3620ec\build2.exe

    Filesize

    323KB

    MD5

    efcd4db108fc262b0fba4f82692bfdf1

    SHA1

    5cc11f23b251c802e2e5497cc40d5702853e4f16

    SHA256

    1aacaadce5954ff321f06df9cf1785902ef0b1806599b8b0aa477ae211ff2976

    SHA512

    6c6cfe51f2686d26477934efe52a861c5a7bbd1baa4edac087c49058bca51d43b5be1214e22761ae63e98cd3e78c8aef51571835ac8e009cdc70c56439f2d15e

  • C:\Users\Admin\AppData\Local\48ff3f30-ef28-431f-853a-b42d9e3620ec\build2.exe

    Filesize

    323KB

    MD5

    efcd4db108fc262b0fba4f82692bfdf1

    SHA1

    5cc11f23b251c802e2e5497cc40d5702853e4f16

    SHA256

    1aacaadce5954ff321f06df9cf1785902ef0b1806599b8b0aa477ae211ff2976

    SHA512

    6c6cfe51f2686d26477934efe52a861c5a7bbd1baa4edac087c49058bca51d43b5be1214e22761ae63e98cd3e78c8aef51571835ac8e009cdc70c56439f2d15e

  • C:\Users\Admin\AppData\Local\48ff3f30-ef28-431f-853a-b42d9e3620ec\build2.exe

    Filesize

    323KB

    MD5

    efcd4db108fc262b0fba4f82692bfdf1

    SHA1

    5cc11f23b251c802e2e5497cc40d5702853e4f16

    SHA256

    1aacaadce5954ff321f06df9cf1785902ef0b1806599b8b0aa477ae211ff2976

    SHA512

    6c6cfe51f2686d26477934efe52a861c5a7bbd1baa4edac087c49058bca51d43b5be1214e22761ae63e98cd3e78c8aef51571835ac8e009cdc70c56439f2d15e

  • C:\Users\Admin\AppData\Local\bdb58274-cf3d-4f4d-beec-1202e97218e1\adee78b270b8e56e775dd70f6b39a3bc44a3eabcbe9b55310f62cfc9da6a2b9c.exe

    Filesize

    791KB

    MD5

    5a5c792332fe31927128e7450ee4f3df

    SHA1

    d5e09b9c8f7b6a15cdb12555133fddd02b5d724c

    SHA256

    adee78b270b8e56e775dd70f6b39a3bc44a3eabcbe9b55310f62cfc9da6a2b9c

    SHA512

    8e4f58d1ba79436b3bf973c4d8757314b47d03189cde022bfa8de75d9cb165d28e8b6af17f950e87d9b5b5d2ab7023b12f4fa36a7f182b3e37fa5fc85741c8a2

  • memory/1556-136-0x0000000004B30000-0x0000000004C4B000-memory.dmp

    Filesize

    1.1MB

  • memory/1556-135-0x00000000049B7000-0x0000000004A48000-memory.dmp

    Filesize

    580KB

  • memory/2196-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2196-145-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2196-167-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2196-152-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3452-162-0x00000000021B0000-0x0000000002209000-memory.dmp

    Filesize

    356KB

  • memory/4004-169-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/4004-158-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/4004-160-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/4004-161-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/4004-163-0x0000000000400000-0x000000000046E000-memory.dmp

    Filesize

    440KB

  • memory/4720-146-0x00000000048C3000-0x0000000004954000-memory.dmp

    Filesize

    580KB

  • memory/4992-142-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4992-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4992-133-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4992-134-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4992-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB