Analysis

  • max time kernel
    63s
  • max time network
    145s
  • 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, 19:02

General

  • Target

    363d4337b3ca4ea4be799f8a6d099174c41615ef871385e3a353e84e1aa5f944.exe

  • Size

    753KB

  • MD5

    2457bea22105f66a38c510acd81b297a

  • SHA1

    744134a57b384b3e10b82790c31aada0246f2200

  • SHA256

    363d4337b3ca4ea4be799f8a6d099174c41615ef871385e3a353e84e1aa5f944

  • SHA512

    2b08ccb6f43d9142f3e3e60caa2de12878dc669a6d9faf4776bba51051ace72c3a2ab7dc4d83c913179b695e89a7493603896d63b1356e38e2582bfdaf31592a

  • SSDEEP

    12288:LRPAYyD9ZrbJbdTslSXSMvCz3F+y9Nt6gxWhnM4/JLXTPMqaUiMycovq:LqYmRbxZKSXSN73dWhM4lwqaUeC

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\363d4337b3ca4ea4be799f8a6d099174c41615ef871385e3a353e84e1aa5f944.exe
    "C:\Users\Admin\AppData\Local\Temp\363d4337b3ca4ea4be799f8a6d099174c41615ef871385e3a353e84e1aa5f944.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4744
    • C:\Users\Admin\AppData\Local\Temp\363d4337b3ca4ea4be799f8a6d099174c41615ef871385e3a353e84e1aa5f944.exe
      "C:\Users\Admin\AppData\Local\Temp\363d4337b3ca4ea4be799f8a6d099174c41615ef871385e3a353e84e1aa5f944.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4784
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\54cb3bcf-87fd-4b70-99ae-50cb41b1bcaa" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4780
      • C:\Users\Admin\AppData\Local\Temp\363d4337b3ca4ea4be799f8a6d099174c41615ef871385e3a353e84e1aa5f944.exe
        "C:\Users\Admin\AppData\Local\Temp\363d4337b3ca4ea4be799f8a6d099174c41615ef871385e3a353e84e1aa5f944.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4616
        • C:\Users\Admin\AppData\Local\Temp\363d4337b3ca4ea4be799f8a6d099174c41615ef871385e3a353e84e1aa5f944.exe
          "C:\Users\Admin\AppData\Local\Temp\363d4337b3ca4ea4be799f8a6d099174c41615ef871385e3a353e84e1aa5f944.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1448
          • C:\Users\Admin\AppData\Local\a94f217b-192e-4454-b0e2-440fd9ff7b56\build2.exe
            "C:\Users\Admin\AppData\Local\a94f217b-192e-4454-b0e2-440fd9ff7b56\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2160
            • C:\Users\Admin\AppData\Local\a94f217b-192e-4454-b0e2-440fd9ff7b56\build2.exe
              "C:\Users\Admin\AppData\Local\a94f217b-192e-4454-b0e2-440fd9ff7b56\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:2448
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\a94f217b-192e-4454-b0e2-440fd9ff7b56\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:3768
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:384
          • C:\Users\Admin\AppData\Local\a94f217b-192e-4454-b0e2-440fd9ff7b56\build3.exe
            "C:\Users\Admin\AppData\Local\a94f217b-192e-4454-b0e2-440fd9ff7b56\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:996
            • 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:2068
  • 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:3600
    • 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:4224

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        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

          c3143101e4694b9d81e94ee967c4dbb6

          SHA1

          aa6fe533b58d61070c128855081d94b0de8cf494

          SHA256

          8e270149a4ffb48d7670a0ec67bde1a4e918d215e466e1bc466c3cd7ef810b70

          SHA512

          985a087be5f00cb6f76f950c09494704264b9741f3f85655ef8324c2a7030f00af6c83e0dbd4e35fee7c8ab65131d09d9ac727157235e2e74a9f3bb9e9fd3ac1

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

          Filesize

          482B

          MD5

          84c17f5e42697cb685af22165a1b71df

          SHA1

          1ddab4dbb83da452612fe2a07a2939f760346a0f

          SHA256

          7cc08521681a658816217ba9e9f4f8dcbacfcb84d70e64323e908126916bf179

          SHA512

          2aef2c968730884c34a8e3a326e8d92ab0d91402e2941f1cd41237d44e3ff6e37b8a7dd363a878cc6ccce57ca1fc8bc54293b0aacffd436e8c05265e30df1889

        • C:\Users\Admin\AppData\Local\54cb3bcf-87fd-4b70-99ae-50cb41b1bcaa\363d4337b3ca4ea4be799f8a6d099174c41615ef871385e3a353e84e1aa5f944.exe

          Filesize

          753KB

          MD5

          2457bea22105f66a38c510acd81b297a

          SHA1

          744134a57b384b3e10b82790c31aada0246f2200

          SHA256

          363d4337b3ca4ea4be799f8a6d099174c41615ef871385e3a353e84e1aa5f944

          SHA512

          2b08ccb6f43d9142f3e3e60caa2de12878dc669a6d9faf4776bba51051ace72c3a2ab7dc4d83c913179b695e89a7493603896d63b1356e38e2582bfdaf31592a

        • C:\Users\Admin\AppData\Local\a94f217b-192e-4454-b0e2-440fd9ff7b56\build2.exe

          Filesize

          325KB

          MD5

          4c9fdfbf316f37dbcc7314e5641f9a9a

          SHA1

          7fa01df0e5420f9e5b69486550460e839fd0f3a3

          SHA256

          e661e53f429cd22e30ca6fb368f3e011e76264892f4e718c75cb3636f4f2e611

          SHA512

          b22c60d27ed5457677645a2b8669cd1958cc18a021e19dcf1d1a3a88ed63cd4eb749b1fe8798f651dcc5595d019ceb3cb38eae7a07ab73098eee502dbee5c32b

        • C:\Users\Admin\AppData\Local\a94f217b-192e-4454-b0e2-440fd9ff7b56\build2.exe

          Filesize

          325KB

          MD5

          4c9fdfbf316f37dbcc7314e5641f9a9a

          SHA1

          7fa01df0e5420f9e5b69486550460e839fd0f3a3

          SHA256

          e661e53f429cd22e30ca6fb368f3e011e76264892f4e718c75cb3636f4f2e611

          SHA512

          b22c60d27ed5457677645a2b8669cd1958cc18a021e19dcf1d1a3a88ed63cd4eb749b1fe8798f651dcc5595d019ceb3cb38eae7a07ab73098eee502dbee5c32b

        • C:\Users\Admin\AppData\Local\a94f217b-192e-4454-b0e2-440fd9ff7b56\build2.exe

          Filesize

          325KB

          MD5

          4c9fdfbf316f37dbcc7314e5641f9a9a

          SHA1

          7fa01df0e5420f9e5b69486550460e839fd0f3a3

          SHA256

          e661e53f429cd22e30ca6fb368f3e011e76264892f4e718c75cb3636f4f2e611

          SHA512

          b22c60d27ed5457677645a2b8669cd1958cc18a021e19dcf1d1a3a88ed63cd4eb749b1fe8798f651dcc5595d019ceb3cb38eae7a07ab73098eee502dbee5c32b

        • C:\Users\Admin\AppData\Local\a94f217b-192e-4454-b0e2-440fd9ff7b56\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Local\a94f217b-192e-4454-b0e2-440fd9ff7b56\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/1448-145-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1448-191-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1448-152-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1448-147-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2160-165-0x00000000006E0000-0x000000000073E000-memory.dmp

          Filesize

          376KB

        • memory/2160-163-0x0000000000778000-0x00000000007AC000-memory.dmp

          Filesize

          208KB

        • memory/2448-189-0x0000000000400000-0x0000000000472000-memory.dmp

          Filesize

          456KB

        • memory/2448-168-0x0000000050AC0000-0x0000000050BB3000-memory.dmp

          Filesize

          972KB

        • memory/2448-167-0x0000000000400000-0x0000000000472000-memory.dmp

          Filesize

          456KB

        • memory/2448-166-0x0000000000400000-0x0000000000472000-memory.dmp

          Filesize

          456KB

        • memory/2448-161-0x0000000000400000-0x0000000000472000-memory.dmp

          Filesize

          456KB

        • memory/2448-164-0x0000000000400000-0x0000000000472000-memory.dmp

          Filesize

          456KB

        • memory/4616-146-0x000000000217D000-0x000000000220F000-memory.dmp

          Filesize

          584KB

        • memory/4744-136-0x00000000024C0000-0x00000000025DB000-memory.dmp

          Filesize

          1.1MB

        • memory/4744-135-0x000000000240C000-0x000000000249E000-memory.dmp

          Filesize

          584KB

        • memory/4784-138-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4784-137-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4784-142-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4784-134-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4784-133-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB