Analysis

  • max time kernel
    162s
  • max time network
    181s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/04/2023, 23:12

General

  • Target

    227e92bd766dd95c7dc37b3fa3279ec2ce8a431df1f804ed6f1408a0d0584c6e.exe

  • Size

    847KB

  • MD5

    708877b85f81dc9829698558989b6f3f

  • SHA1

    fc75dcb59a71505e086bd900a0acb3041a5c1a60

  • SHA256

    227e92bd766dd95c7dc37b3fa3279ec2ce8a431df1f804ed6f1408a0d0584c6e

  • SHA512

    c0d6622d5b7baa02253f9b16b53451f27724f4221d97626d72b18d6cd76da6385672a395b6665e7442154e0f5a5b686f8d77062f620d43a4e46283bf65c139b5

  • SSDEEP

    24576:jfoSCzdOdqzDAF7bdBnWFHA43i8HcADrjOX8wA:jf8Q6AF7bdBWFFy8dryXpA

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/raud/get.php

Attributes
  • extension

    .coza

  • offline_id

    O8Ao46dcCReRPC4I1PGMYsRFFc9WI5eOp0O3MFt1

  • payload_url

    http://colisumy.com/dl/build2.exe

    http://zexeq.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-EPBZCVAS8s 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: 0693JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

3.6

Botnet

5cb879265de0011bfc7588d5d251aee6

C2

https://steamcommunity.com/profiles/76561199499188534

https://t.me/nutalse

Attributes
  • profile_id_v2

    5cb879265de0011bfc7588d5d251aee6

  • user_agent

    Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36

Signatures

  • Detected Djvu ransomware 16 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
  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Executes dropped EXE 4 IoCs
  • 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
  • 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).

  • 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\227e92bd766dd95c7dc37b3fa3279ec2ce8a431df1f804ed6f1408a0d0584c6e.exe
    "C:\Users\Admin\AppData\Local\Temp\227e92bd766dd95c7dc37b3fa3279ec2ce8a431df1f804ed6f1408a0d0584c6e.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:5116
    • C:\Users\Admin\AppData\Local\Temp\227e92bd766dd95c7dc37b3fa3279ec2ce8a431df1f804ed6f1408a0d0584c6e.exe
      "C:\Users\Admin\AppData\Local\Temp\227e92bd766dd95c7dc37b3fa3279ec2ce8a431df1f804ed6f1408a0d0584c6e.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1924
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\11c474ce-1349-40e2-83bf-3ab536de42c1" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:2500
      • C:\Users\Admin\AppData\Local\Temp\227e92bd766dd95c7dc37b3fa3279ec2ce8a431df1f804ed6f1408a0d0584c6e.exe
        "C:\Users\Admin\AppData\Local\Temp\227e92bd766dd95c7dc37b3fa3279ec2ce8a431df1f804ed6f1408a0d0584c6e.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2688
        • C:\Users\Admin\AppData\Local\Temp\227e92bd766dd95c7dc37b3fa3279ec2ce8a431df1f804ed6f1408a0d0584c6e.exe
          "C:\Users\Admin\AppData\Local\Temp\227e92bd766dd95c7dc37b3fa3279ec2ce8a431df1f804ed6f1408a0d0584c6e.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4024
          • C:\Users\Admin\AppData\Local\7180c097-5c2b-4742-a69b-92a64c07d546\build2.exe
            "C:\Users\Admin\AppData\Local\7180c097-5c2b-4742-a69b-92a64c07d546\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:3144
            • C:\Users\Admin\AppData\Local\7180c097-5c2b-4742-a69b-92a64c07d546\build2.exe
              "C:\Users\Admin\AppData\Local\7180c097-5c2b-4742-a69b-92a64c07d546\build2.exe"
              6⤵
              • Checks computer location settings
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:1648
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\7180c097-5c2b-4742-a69b-92a64c07d546\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:4520
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:1424
          • C:\Users\Admin\AppData\Local\7180c097-5c2b-4742-a69b-92a64c07d546\build3.exe
            "C:\Users\Admin\AppData\Local\7180c097-5c2b-4742-a69b-92a64c07d546\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:1644
            • 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:1212
  • 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:4264
    • 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:3584

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

    929B

    MD5

    848d830a9f954f77aa2ea7be3a37b9f7

    SHA1

    dd991c15a628db9853f4315253d93fe8c2c4dfd9

    SHA256

    488e1beb956a724739e1e657fad40bb97f6f4eeca82c80ad6019442044aef2a6

    SHA512

    7a46229b249f993bdc777a12ddd5dfe41f83aac534b08e7dc99924219e4db42b3c5ad9983bc1467d5b9a6c7fce5f81159115c096c075af943962aafb1d425914

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

    Filesize

    1KB

    MD5

    c47ced60e752bcea466353faea903eea

    SHA1

    86ebbd1bfe57c3a5a5a043b3711acb54ee274372

    SHA256

    6681699bbdf9e6100983682b081a37718a9ea60a4a56fb6fb6bbd06943fdc7bd

    SHA512

    5e55bd6287b21832d2a564e39c8e35e2aac073c4411e363587a1074c1f47d4b4b5453bf8640e1ed0c60423ee9c897900b20585f10b311e7c3475a26b41324b3a

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

    Filesize

    274B

    MD5

    2f189d56afda712272aaa1a24b765851

    SHA1

    4ffdd698b6026d47f3a8b88876ed23ece636f56f

    SHA256

    76e89946f0bbe6a8117a9acf02b138b1a9979377908ba5b8f45af1db354caf57

    SHA512

    21f2ee7697612670e00cdbee4546e8f7cf9a6bc98342c87cd7f5a3284c017a88f69eb68a0398d463cb0944a4283d806fcba4baf5e8020284b0773ffa0aa10f85

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

    Filesize

    482B

    MD5

    137269fb301b8f8348461851d1309e15

    SHA1

    49c3c543649672bdddff89ff4c33470634e4b594

    SHA256

    cb14621219bf8449acb0f2434bd70e67aaf260e53becbf132f3ddcc73551dd49

    SHA512

    8da2f9aaccf5bb659da32cefa1974e1259ab7868409e2560d4281972794202a1115ef38bedbf67cdda7b7f10369790ca79ccd8a9ebb22a60dfb568daa35621f2

  • C:\Users\Admin\AppData\Local\11c474ce-1349-40e2-83bf-3ab536de42c1\227e92bd766dd95c7dc37b3fa3279ec2ce8a431df1f804ed6f1408a0d0584c6e.exe

    Filesize

    847KB

    MD5

    708877b85f81dc9829698558989b6f3f

    SHA1

    fc75dcb59a71505e086bd900a0acb3041a5c1a60

    SHA256

    227e92bd766dd95c7dc37b3fa3279ec2ce8a431df1f804ed6f1408a0d0584c6e

    SHA512

    c0d6622d5b7baa02253f9b16b53451f27724f4221d97626d72b18d6cd76da6385672a395b6665e7442154e0f5a5b686f8d77062f620d43a4e46283bf65c139b5

  • C:\Users\Admin\AppData\Local\7180c097-5c2b-4742-a69b-92a64c07d546\build2.exe

    Filesize

    453KB

    MD5

    770db2929307f3de98c1944fcd4adf92

    SHA1

    d84b969b5f77353f734ec251660b71f11f2a76bf

    SHA256

    581304c1ecc96f13dc1fcd999afed03ce2844937b63f463269352d9ba60666cb

    SHA512

    5bb5ac8146a540ea34aabee20b8f30a3b7fe1064f4cd18f1222aed63eb9a8a946c1e2c45a17b57e0e883ea578aacd255734aeb155451984c44ce1fb90cc66d03

  • C:\Users\Admin\AppData\Local\7180c097-5c2b-4742-a69b-92a64c07d546\build2.exe

    Filesize

    453KB

    MD5

    770db2929307f3de98c1944fcd4adf92

    SHA1

    d84b969b5f77353f734ec251660b71f11f2a76bf

    SHA256

    581304c1ecc96f13dc1fcd999afed03ce2844937b63f463269352d9ba60666cb

    SHA512

    5bb5ac8146a540ea34aabee20b8f30a3b7fe1064f4cd18f1222aed63eb9a8a946c1e2c45a17b57e0e883ea578aacd255734aeb155451984c44ce1fb90cc66d03

  • C:\Users\Admin\AppData\Local\7180c097-5c2b-4742-a69b-92a64c07d546\build2.exe

    Filesize

    453KB

    MD5

    770db2929307f3de98c1944fcd4adf92

    SHA1

    d84b969b5f77353f734ec251660b71f11f2a76bf

    SHA256

    581304c1ecc96f13dc1fcd999afed03ce2844937b63f463269352d9ba60666cb

    SHA512

    5bb5ac8146a540ea34aabee20b8f30a3b7fe1064f4cd18f1222aed63eb9a8a946c1e2c45a17b57e0e883ea578aacd255734aeb155451984c44ce1fb90cc66d03

  • C:\Users\Admin\AppData\Local\7180c097-5c2b-4742-a69b-92a64c07d546\build2.exe

    Filesize

    453KB

    MD5

    770db2929307f3de98c1944fcd4adf92

    SHA1

    d84b969b5f77353f734ec251660b71f11f2a76bf

    SHA256

    581304c1ecc96f13dc1fcd999afed03ce2844937b63f463269352d9ba60666cb

    SHA512

    5bb5ac8146a540ea34aabee20b8f30a3b7fe1064f4cd18f1222aed63eb9a8a946c1e2c45a17b57e0e883ea578aacd255734aeb155451984c44ce1fb90cc66d03

  • C:\Users\Admin\AppData\Local\7180c097-5c2b-4742-a69b-92a64c07d546\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\7180c097-5c2b-4742-a69b-92a64c07d546\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\7180c097-5c2b-4742-a69b-92a64c07d546\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/1648-212-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/1648-195-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/1648-258-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/1648-257-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/1648-256-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/1648-254-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/1648-253-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/1648-200-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/1648-199-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/1648-197-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/1924-136-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1924-135-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1924-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1924-149-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1924-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1924-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3144-198-0x0000000000AB0000-0x0000000000B0E000-memory.dmp

    Filesize

    376KB

  • memory/4024-161-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4024-154-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4024-167-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4024-190-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4024-165-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4024-202-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4024-168-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4024-159-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4024-153-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5116-134-0x0000000002540000-0x000000000265B000-memory.dmp

    Filesize

    1.1MB