Analysis

  • max time kernel
    61s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-11-2022 07:14

General

  • Target

    5d30081c39d928d09154d311ce8e7c359661d42f5dd8204ea0f84ff2e151ec2b.exe

  • Size

    657KB

  • MD5

    3c601e9c952ef6b658965ef478acdc56

  • SHA1

    fb778e852092d689799ee8d3d63c0b8d94d5455f

  • SHA256

    5d30081c39d928d09154d311ce8e7c359661d42f5dd8204ea0f84ff2e151ec2b

  • SHA512

    3a0c0ca7932576dd2f2c7686f883feea5b5399e5561c368260de3c0b56c4391a17642d0f3669651dad5345457b792c8ec7f5dbe9753a9dbaf99d8874faa37d4b

  • SSDEEP

    12288:cMsd5X90REJFkjLVKb8K5O7GVJKlnDikmKv+UNphuH72SPpDZ6N9MF:7sdh9VJkw8KcKUlOgv/AP6TM

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .uyro

  • offline_id

    HtkmULXEgJoZa495hFUJlvKCD0OwnxklbkoITjt1

  • 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-5UcwRdS3ED 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: 0609djfsieE

rsa_pubkey.plain

Extracted

Family

vidar

Version

56

Botnet

517

C2

https://t.me/asifrazatg

https://steamcommunity.com/profiles/76561199439929669

Attributes
  • profile_id

    517

Signatures

  • Detected Djvu ransomware 10 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Executes dropped EXE 4 IoCs
  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Loads dropped DLL 2 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.

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5d30081c39d928d09154d311ce8e7c359661d42f5dd8204ea0f84ff2e151ec2b.exe
    "C:\Users\Admin\AppData\Local\Temp\5d30081c39d928d09154d311ce8e7c359661d42f5dd8204ea0f84ff2e151ec2b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3704
    • C:\Users\Admin\AppData\Local\Temp\5d30081c39d928d09154d311ce8e7c359661d42f5dd8204ea0f84ff2e151ec2b.exe
      "C:\Users\Admin\AppData\Local\Temp\5d30081c39d928d09154d311ce8e7c359661d42f5dd8204ea0f84ff2e151ec2b.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4720
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\8b2b2190-ea74-4759-8a88-cce32e163e5e" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4600
      • C:\Users\Admin\AppData\Local\Temp\5d30081c39d928d09154d311ce8e7c359661d42f5dd8204ea0f84ff2e151ec2b.exe
        "C:\Users\Admin\AppData\Local\Temp\5d30081c39d928d09154d311ce8e7c359661d42f5dd8204ea0f84ff2e151ec2b.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4504
        • C:\Users\Admin\AppData\Local\Temp\5d30081c39d928d09154d311ce8e7c359661d42f5dd8204ea0f84ff2e151ec2b.exe
          "C:\Users\Admin\AppData\Local\Temp\5d30081c39d928d09154d311ce8e7c359661d42f5dd8204ea0f84ff2e151ec2b.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1648
          • C:\Users\Admin\AppData\Local\8c111fb0-bbba-4602-ac08-27ac2714ee76\build2.exe
            "C:\Users\Admin\AppData\Local\8c111fb0-bbba-4602-ac08-27ac2714ee76\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2656
            • C:\Users\Admin\AppData\Local\8c111fb0-bbba-4602-ac08-27ac2714ee76\build2.exe
              "C:\Users\Admin\AppData\Local\8c111fb0-bbba-4602-ac08-27ac2714ee76\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:2152
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\8c111fb0-bbba-4602-ac08-27ac2714ee76\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:1100
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:2492
          • C:\Users\Admin\AppData\Local\8c111fb0-bbba-4602-ac08-27ac2714ee76\build3.exe
            "C:\Users\Admin\AppData\Local\8c111fb0-bbba-4602-ac08-27ac2714ee76\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:1916
            • C:\Windows\SysWOW64\schtasks.exe
              /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
              6⤵
              • Creates scheduled task(s)
              PID:2188
  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:3036
    • C:\Windows\SysWOW64\schtasks.exe
      /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
      2⤵
      • Creates scheduled task(s)
      PID:2292

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:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3538626A1FCCCA43C7E18F220BDD9B02

    Filesize

    978B

    MD5

    a7fe1142072784c5f703873724e1059c

    SHA1

    abb8a342e4e4e3a5309b961907f1129fa56fc605

    SHA256

    2a0a9d12d67911534cdaff9e63ead4910baba478177bbc5181ca0a83bdf9f9ca

    SHA512

    3e55ae5fbbd51629d806d7a02e06b169bae6d7090e2cf9aa1bd5df2fb503ae9cf75d1e9cba1d27ee75855a858a1be56dd3eba323abebe7bcb5277ed04862dfde

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

    Filesize

    1KB

    MD5

    916c512d221c683beeea9d5cb311b0b0

    SHA1

    bf0db4b1c4566275b629efb095b6ff8857b5748e

    SHA256

    64a36c1637d0a111152002a2c0385b0df9dd81b616b3f2073fbbe3f2975aa4d8

    SHA512

    af32cffea722438e9b17b08062dc2e209edc5417418964ead0b392bd502e1a647a8456b2ee2ea59faf69f93d0c6ea6f15949b6c30924db7da65b91cb18e8dc6c

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3538626A1FCCCA43C7E18F220BDD9B02

    Filesize

    274B

    MD5

    8d23aa0e9844ab4323cbfc0d21de4678

    SHA1

    91404bba809b964733ce571543531d132dc99ef7

    SHA256

    3aac4a9b3d8ce49ded3bbe182d07c3f72b03e78573acf20fc641e86319b3753c

    SHA512

    e8eb19fd2d20ec478bf92aee58441fcdfbd75598f2c3ac194f1cc04747f10159d275f92a3249295ce1530d6758faa9f479c7a2d3ed8334946348fc5bf3377ff9

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

    Filesize

    482B

    MD5

    6ce07e608f25f0e9402c7129ffe6f4d1

    SHA1

    515b67a51f47473cae454362495f6b8e9a8d9b37

    SHA256

    5fe437ef929bff05a09ca3df1b069bd3f437c361eb92083332657cc7cfe43171

    SHA512

    89bae992a6bd384791c98540449030c58dcc2d832222927d85710f42fc828e62433d3bde72909b29d69ae1c8e11188b42b2d7b46f1fb4b8ad04fa863dd811c58

  • C:\Users\Admin\AppData\Local\8b2b2190-ea74-4759-8a88-cce32e163e5e\5d30081c39d928d09154d311ce8e7c359661d42f5dd8204ea0f84ff2e151ec2b.exe

    Filesize

    657KB

    MD5

    3c601e9c952ef6b658965ef478acdc56

    SHA1

    fb778e852092d689799ee8d3d63c0b8d94d5455f

    SHA256

    5d30081c39d928d09154d311ce8e7c359661d42f5dd8204ea0f84ff2e151ec2b

    SHA512

    3a0c0ca7932576dd2f2c7686f883feea5b5399e5561c368260de3c0b56c4391a17642d0f3669651dad5345457b792c8ec7f5dbe9753a9dbaf99d8874faa37d4b

  • C:\Users\Admin\AppData\Local\8c111fb0-bbba-4602-ac08-27ac2714ee76\build2.exe

    Filesize

    258KB

    MD5

    b9212ded69fae1fa1fb5d6db46a9fb76

    SHA1

    58face4245646b1cd379ee49f03a701eab1642be

    SHA256

    7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f

    SHA512

    09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342

  • C:\Users\Admin\AppData\Local\8c111fb0-bbba-4602-ac08-27ac2714ee76\build2.exe

    Filesize

    258KB

    MD5

    b9212ded69fae1fa1fb5d6db46a9fb76

    SHA1

    58face4245646b1cd379ee49f03a701eab1642be

    SHA256

    7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f

    SHA512

    09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342

  • C:\Users\Admin\AppData\Local\8c111fb0-bbba-4602-ac08-27ac2714ee76\build2.exe

    Filesize

    258KB

    MD5

    b9212ded69fae1fa1fb5d6db46a9fb76

    SHA1

    58face4245646b1cd379ee49f03a701eab1642be

    SHA256

    7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f

    SHA512

    09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342

  • C:\Users\Admin\AppData\Local\8c111fb0-bbba-4602-ac08-27ac2714ee76\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\8c111fb0-bbba-4602-ac08-27ac2714ee76\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • memory/1100-188-0x0000000000000000-mapping.dmp

  • memory/1648-145-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1648-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1648-143-0x0000000000000000-mapping.dmp

  • memory/1648-152-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1648-191-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1916-156-0x0000000000000000-mapping.dmp

  • memory/2152-160-0x0000000000000000-mapping.dmp

  • memory/2152-167-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2152-189-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2152-164-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2152-168-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/2152-161-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2152-163-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2188-159-0x0000000000000000-mapping.dmp

  • memory/2292-194-0x0000000000000000-mapping.dmp

  • memory/2492-190-0x0000000000000000-mapping.dmp

  • memory/2656-153-0x0000000000000000-mapping.dmp

  • memory/2656-166-0x00000000004F0000-0x000000000053B000-memory.dmp

    Filesize

    300KB

  • memory/2656-165-0x00000000006BD000-0x00000000006E9000-memory.dmp

    Filesize

    176KB

  • memory/3704-132-0x0000000002252000-0x00000000022E3000-memory.dmp

    Filesize

    580KB

  • memory/3704-133-0x00000000022F0000-0x000000000240B000-memory.dmp

    Filesize

    1.1MB

  • memory/4504-146-0x0000000002144000-0x00000000021D5000-memory.dmp

    Filesize

    580KB

  • memory/4504-141-0x0000000000000000-mapping.dmp

  • memory/4600-139-0x0000000000000000-mapping.dmp

  • memory/4720-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4720-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4720-136-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4720-135-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4720-134-0x0000000000000000-mapping.dmp

  • memory/4720-142-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB