Analysis

  • max time kernel
    63s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-02-2023 20:53

General

  • Target

    21a2020eb126e7c1848887f7641341da5377a5e54f2368d4f1671bbd5a7eee67.exe

  • Size

    753KB

  • MD5

    f6913fb3a5ea8ef054110894763c7ffa

  • SHA1

    965b0c399f7c9bbd39198fff2b0a6117e9fbdaa9

  • SHA256

    21a2020eb126e7c1848887f7641341da5377a5e54f2368d4f1671bbd5a7eee67

  • SHA512

    9ca93bb426c816ce52d981790f191befc515e7d3136c85590ead221c2525f8aeafa43a0da77611433ff48d91ba200100003e222f7d75e039205d42111c10cf5b

  • SSDEEP

    12288:pP6Sb/UHts5eCnGntgKS9Uo4qY1uJKYY/5uXj3Z0pylo6I+ywicKPGwyhOzNUQJ:pZLktwdKSt2YJKp/Ephlo6I+vicMvLzZ

Malware Config

Extracted

Family

djvu

C2

http://bihsy.com/test2/get.php

Attributes
  • extension

    .hhee

  • offline_id

    dMMXkgwQTycP13C5xwPbHDSzhx1ZxiPgIMZXewt1

  • payload_url

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

    http://bihsy.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-UQkYLBSiQ4 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: 0647JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

2.5

Botnet

19

Attributes
  • profile_id

    19

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
  • 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
  • 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\21a2020eb126e7c1848887f7641341da5377a5e54f2368d4f1671bbd5a7eee67.exe
    "C:\Users\Admin\AppData\Local\Temp\21a2020eb126e7c1848887f7641341da5377a5e54f2368d4f1671bbd5a7eee67.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4576
    • C:\Users\Admin\AppData\Local\Temp\21a2020eb126e7c1848887f7641341da5377a5e54f2368d4f1671bbd5a7eee67.exe
      "C:\Users\Admin\AppData\Local\Temp\21a2020eb126e7c1848887f7641341da5377a5e54f2368d4f1671bbd5a7eee67.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1592
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\da6449f9-4714-411b-bc47-5a362ecb5666" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4672
      • C:\Users\Admin\AppData\Local\Temp\21a2020eb126e7c1848887f7641341da5377a5e54f2368d4f1671bbd5a7eee67.exe
        "C:\Users\Admin\AppData\Local\Temp\21a2020eb126e7c1848887f7641341da5377a5e54f2368d4f1671bbd5a7eee67.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1424
        • C:\Users\Admin\AppData\Local\Temp\21a2020eb126e7c1848887f7641341da5377a5e54f2368d4f1671bbd5a7eee67.exe
          "C:\Users\Admin\AppData\Local\Temp\21a2020eb126e7c1848887f7641341da5377a5e54f2368d4f1671bbd5a7eee67.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4652
          • C:\Users\Admin\AppData\Local\a7afa885-6c8a-4574-88a1-58c7c1fdb21a\build2.exe
            "C:\Users\Admin\AppData\Local\a7afa885-6c8a-4574-88a1-58c7c1fdb21a\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2544
            • C:\Users\Admin\AppData\Local\a7afa885-6c8a-4574-88a1-58c7c1fdb21a\build2.exe
              "C:\Users\Admin\AppData\Local\a7afa885-6c8a-4574-88a1-58c7c1fdb21a\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:3680
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\a7afa885-6c8a-4574-88a1-58c7c1fdb21a\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:4304
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:4552
          • C:\Users\Admin\AppData\Local\a7afa885-6c8a-4574-88a1-58c7c1fdb21a\build3.exe
            "C:\Users\Admin\AppData\Local\a7afa885-6c8a-4574-88a1-58c7c1fdb21a\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:3476
            • 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:2640
  • 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:2244
    • 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:4236

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\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

    Filesize

    2KB

    MD5

    e825419f5d91cbb7dd2c1407c2ae4c08

    SHA1

    daca95b9bffaff1aacb09d09292a41c5e98f0d12

    SHA256

    01a7d3b0ef49c660185536f53cfa2744c7784aef0981df4fd03ae06770b25376

    SHA512

    e4c0b3dea86821de18a10f43dac1263cf917075b620cd4f6ca22331dec27ca0c89b57145e33de8f502e09c1bcfaa400d27cb601f315b1a8b4c851f15064fd514

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

    Filesize

    1KB

    MD5

    0e8f1fb71254974e1d528b62e7b02e8b

    SHA1

    2275bdfb4779b15a886d9558ee3e0ce97112ddee

    SHA256

    f5e027fd76267c7668098a78724a82ca20ffb6818fc4e5b6eb9669866f32800c

    SHA512

    f084ae94658a9a8db6da8437cd8ad913e9820ff6f05f974ca165ee7af98a0cbf32e87fde1e263c9a7ec9d7877de44ee0ab1dd22269135a03a922d7dcc6473304

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

    Filesize

    488B

    MD5

    464b278eb01e7dc87fd87263b9866901

    SHA1

    426e2305b6ac330cb7f41c8580da6a83da0edd38

    SHA256

    f852a97c264641e6097037d9480ef63b69b02b0a9c74d395604daf0158e64da2

    SHA512

    81129dad4f4b69a50be5bb63f9571a39c108bf4a58d2f39f283304f92b40c671488a69e368ce8d1b3b866a3f5ae83da062aa9ebf0b433482e7ae9df3d21ee050

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

    Filesize

    482B

    MD5

    7944660a8a8a0d93dffcab657c386e0f

    SHA1

    34c9d07752c4a7c4bff74194bc8b27eac0f58808

    SHA256

    507a83b01100d24794535ce22bd0033eba8265d7f0840ff54f0d993541970155

    SHA512

    01a6056a6a63af5f2a3d43d21556cfcfe7b8dd53b036b85a5fc428078ef6ad6c7bfd6b03a25ba00e92ed1a5a603ae03e8bebe87d5457e5db1d6792ccaeac022f

  • C:\Users\Admin\AppData\Local\a7afa885-6c8a-4574-88a1-58c7c1fdb21a\build2.exe

    Filesize

    325KB

    MD5

    4c9fdfbf316f37dbcc7314e5641f9a9a

    SHA1

    7fa01df0e5420f9e5b69486550460e839fd0f3a3

    SHA256

    e661e53f429cd22e30ca6fb368f3e011e76264892f4e718c75cb3636f4f2e611

    SHA512

    b22c60d27ed5457677645a2b8669cd1958cc18a021e19dcf1d1a3a88ed63cd4eb749b1fe8798f651dcc5595d019ceb3cb38eae7a07ab73098eee502dbee5c32b

  • C:\Users\Admin\AppData\Local\a7afa885-6c8a-4574-88a1-58c7c1fdb21a\build2.exe

    Filesize

    325KB

    MD5

    4c9fdfbf316f37dbcc7314e5641f9a9a

    SHA1

    7fa01df0e5420f9e5b69486550460e839fd0f3a3

    SHA256

    e661e53f429cd22e30ca6fb368f3e011e76264892f4e718c75cb3636f4f2e611

    SHA512

    b22c60d27ed5457677645a2b8669cd1958cc18a021e19dcf1d1a3a88ed63cd4eb749b1fe8798f651dcc5595d019ceb3cb38eae7a07ab73098eee502dbee5c32b

  • C:\Users\Admin\AppData\Local\a7afa885-6c8a-4574-88a1-58c7c1fdb21a\build2.exe

    Filesize

    325KB

    MD5

    4c9fdfbf316f37dbcc7314e5641f9a9a

    SHA1

    7fa01df0e5420f9e5b69486550460e839fd0f3a3

    SHA256

    e661e53f429cd22e30ca6fb368f3e011e76264892f4e718c75cb3636f4f2e611

    SHA512

    b22c60d27ed5457677645a2b8669cd1958cc18a021e19dcf1d1a3a88ed63cd4eb749b1fe8798f651dcc5595d019ceb3cb38eae7a07ab73098eee502dbee5c32b

  • C:\Users\Admin\AppData\Local\a7afa885-6c8a-4574-88a1-58c7c1fdb21a\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\a7afa885-6c8a-4574-88a1-58c7c1fdb21a\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\da6449f9-4714-411b-bc47-5a362ecb5666\21a2020eb126e7c1848887f7641341da5377a5e54f2368d4f1671bbd5a7eee67.exe

    Filesize

    753KB

    MD5

    f6913fb3a5ea8ef054110894763c7ffa

    SHA1

    965b0c399f7c9bbd39198fff2b0a6117e9fbdaa9

    SHA256

    21a2020eb126e7c1848887f7641341da5377a5e54f2368d4f1671bbd5a7eee67

    SHA512

    9ca93bb426c816ce52d981790f191befc515e7d3136c85590ead221c2525f8aeafa43a0da77611433ff48d91ba200100003e222f7d75e039205d42111c10cf5b

  • 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/1424-146-0x00000000022E8000-0x000000000237A000-memory.dmp

    Filesize

    584KB

  • memory/1424-141-0x0000000000000000-mapping.dmp

  • memory/1592-132-0x0000000000000000-mapping.dmp

  • memory/1592-142-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1592-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1592-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1592-133-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1592-134-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2544-162-0x00000000021E0000-0x000000000223E000-memory.dmp

    Filesize

    376KB

  • memory/2544-153-0x0000000000000000-mapping.dmp

  • memory/2544-160-0x0000000000708000-0x000000000073C000-memory.dmp

    Filesize

    208KB

  • memory/2640-166-0x0000000000000000-mapping.dmp

  • memory/3476-163-0x0000000000000000-mapping.dmp

  • memory/3680-167-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/3680-190-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/3680-169-0x0000000050CE0000-0x0000000050DD3000-memory.dmp

    Filesize

    972KB

  • memory/3680-157-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/3680-161-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/3680-156-0x0000000000000000-mapping.dmp

  • memory/3680-159-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/4236-194-0x0000000000000000-mapping.dmp

  • memory/4304-189-0x0000000000000000-mapping.dmp

  • memory/4552-191-0x0000000000000000-mapping.dmp

  • memory/4576-136-0x00000000024C0000-0x00000000025DB000-memory.dmp

    Filesize

    1.1MB

  • memory/4576-135-0x0000000002410000-0x00000000024A2000-memory.dmp

    Filesize

    584KB

  • memory/4652-145-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4652-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4652-152-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4652-143-0x0000000000000000-mapping.dmp

  • memory/4652-168-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4672-139-0x0000000000000000-mapping.dmp