Analysis

  • max time kernel
    293s
  • max time network
    288s
  • platform
    windows10-1703_x64
  • resource
    win10-20230703-en
  • resource tags

    arch:x64arch:x86image:win10-20230703-enlocale:en-usos:windows10-1703-x64system
  • submitted
    07/07/2023, 03:39

General

  • Target

    b2ac6d3519f9fb64288aafbf8c1d9ed29bd1f53d4c2f684bd3068c022729c2ff.exe

  • Size

    734KB

  • MD5

    34518340110ef67f09c3ddc064771df5

  • SHA1

    1ec7a3c51218ea0328a3d2d038fcb68f0d1e9072

  • SHA256

    b2ac6d3519f9fb64288aafbf8c1d9ed29bd1f53d4c2f684bd3068c022729c2ff

  • SHA512

    9e3e16fd65fc7f90187640030a32e4012507d58d6b00faea90008efb8a70d38b26a9b77094b8e4d7b0c8837948ebfafdcdfcaf9c30d12d2dd24212dadd33fedb

  • SSDEEP

    12288:cLiN1HGCsNLy4w5NZJU0nk6ePlPBSCLd9GxNP+PSNaB8/uIKDPPP:cLHDNQ5LJU+ePDBsWPSNaBGTKDP3

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .wayn

  • offline_id

    V5TMuF1BBuDZFeJXDU5xmjrzp6rwS1IuZWNpDCt1

  • 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-6Dm02j1lRa 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: 0740ISdik

rsa_pubkey.plain

Extracted

Family

vidar

Version

4.6

Botnet

dcad9d884915bbb6106f78e5e2ea6168

C2

https://steamcommunity.com/profiles/76561199523054520

https://t.me/game4serv

Attributes
  • profile_id_v2

    dcad9d884915bbb6106f78e5e2ea6168

  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:103.0) Gecko/20100101 Firefox/103.0

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
  • 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).

  • 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.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of WriteProcessMemory 47 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b2ac6d3519f9fb64288aafbf8c1d9ed29bd1f53d4c2f684bd3068c022729c2ff.exe
    "C:\Users\Admin\AppData\Local\Temp\b2ac6d3519f9fb64288aafbf8c1d9ed29bd1f53d4c2f684bd3068c022729c2ff.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4404
    • C:\Users\Admin\AppData\Local\Temp\b2ac6d3519f9fb64288aafbf8c1d9ed29bd1f53d4c2f684bd3068c022729c2ff.exe
      "C:\Users\Admin\AppData\Local\Temp\b2ac6d3519f9fb64288aafbf8c1d9ed29bd1f53d4c2f684bd3068c022729c2ff.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3148
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\03001dde-ded6-4250-954b-5ace5510b119" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:2576
      • C:\Users\Admin\AppData\Local\Temp\b2ac6d3519f9fb64288aafbf8c1d9ed29bd1f53d4c2f684bd3068c022729c2ff.exe
        "C:\Users\Admin\AppData\Local\Temp\b2ac6d3519f9fb64288aafbf8c1d9ed29bd1f53d4c2f684bd3068c022729c2ff.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2684
        • C:\Users\Admin\AppData\Local\Temp\b2ac6d3519f9fb64288aafbf8c1d9ed29bd1f53d4c2f684bd3068c022729c2ff.exe
          "C:\Users\Admin\AppData\Local\Temp\b2ac6d3519f9fb64288aafbf8c1d9ed29bd1f53d4c2f684bd3068c022729c2ff.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4484
          • C:\Users\Admin\AppData\Local\456dd4cb-3aac-4dd1-8735-2d47f74ff10d\build2.exe
            "C:\Users\Admin\AppData\Local\456dd4cb-3aac-4dd1-8735-2d47f74ff10d\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:3900
            • C:\Users\Admin\AppData\Local\456dd4cb-3aac-4dd1-8735-2d47f74ff10d\build2.exe
              "C:\Users\Admin\AppData\Local\456dd4cb-3aac-4dd1-8735-2d47f74ff10d\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:404
          • C:\Users\Admin\AppData\Local\456dd4cb-3aac-4dd1-8735-2d47f74ff10d\build3.exe
            "C:\Users\Admin\AppData\Local\456dd4cb-3aac-4dd1-8735-2d47f74ff10d\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:2772
            • 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:2244
  • 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:1848
    • 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:2724

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          2KB

          MD5

          24841482658226cf5631326daa54421c

          SHA1

          3f7c084495be359a47dd42b07c3b16a28c330714

          SHA256

          1beda9a89d19114be6dc72214190ba114f6eb935862fa07b8ced5ad6a78641b2

          SHA512

          551f85388f5152436942b091afc3baf4370b6d9321d916692405f14c654c5cb0a676a3a8fff90e780831838708df8231a9f55e2fff9d2cb084cc0e3cebe212b4

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

          Filesize

          1KB

          MD5

          29ba323a28bc41f59890555f91916c6f

          SHA1

          5ba1f1b1cd8fe3761cf7f6180106051566f8dd86

          SHA256

          7f71f2f6003e29c5327bfc643bf9c9e165d8e617328b127196979648753a6f21

          SHA512

          4cca1e24b503bc198686b1cfdbf0d0d15c64b37cb16fa9d76d2852d2cefb6c25f546cc024ed9be2a5ec6c15318e74a971611555e770c59292fc78ffbbe4bdf34

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

          Filesize

          488B

          MD5

          d79c2188ed7c8c53f1e571c6cdf92e6a

          SHA1

          ab0b0a466a762ba63975f0edeb5a281436567bee

          SHA256

          e2820ce4f4866b300e68e9889d347b8b3316621073d17a7703e44fc003cd342a

          SHA512

          e440ac409955417e99d5f03458da1cfb98ffa8c9aa1da0df559d20d36a827dc19f703317619ee8e0e10a71ae5c6ff07689cbe03b7c0edc2538340e5c7b55ceca

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

          Filesize

          482B

          MD5

          3b8e5b6c8e4ac075eee0609b94d1bb92

          SHA1

          17c28a22336c3068b044377b47a257b05dfe839e

          SHA256

          48926f2468b7b5351047c4eb9e2d83a22e3ca121e948b9d01665056db9021ff8

          SHA512

          363260b63dab4cf2ec28e00a72799d59f5c96b011d3569df069b0a3881e6003f076b0e9af93de85e8bdc1060961f73f59b672e0b7d3527c98874881619ffaeef

        • C:\Users\Admin\AppData\Local\03001dde-ded6-4250-954b-5ace5510b119\b2ac6d3519f9fb64288aafbf8c1d9ed29bd1f53d4c2f684bd3068c022729c2ff.exe

          Filesize

          734KB

          MD5

          34518340110ef67f09c3ddc064771df5

          SHA1

          1ec7a3c51218ea0328a3d2d038fcb68f0d1e9072

          SHA256

          b2ac6d3519f9fb64288aafbf8c1d9ed29bd1f53d4c2f684bd3068c022729c2ff

          SHA512

          9e3e16fd65fc7f90187640030a32e4012507d58d6b00faea90008efb8a70d38b26a9b77094b8e4d7b0c8837948ebfafdcdfcaf9c30d12d2dd24212dadd33fedb

        • C:\Users\Admin\AppData\Local\456dd4cb-3aac-4dd1-8735-2d47f74ff10d\build2.exe

          Filesize

          418KB

          MD5

          3567ceb7b97d51ca25326b7fb5c8ec6f

          SHA1

          8cccc90870e6a00cc8240dfab61dfd46c30cbd65

          SHA256

          4df6328ec1e748df2043ceca410088ca2018b6635d91f29451b53ed4416cdac2

          SHA512

          3ded0d9fa7716e9395b92afd11fdfe503b9c4c9ec7bfaf899a191dad37a230803f3cb1e506ff32d2a280de74e42b032e7e8cb491059b1eb62d5a2b36bda65ed9

        • C:\Users\Admin\AppData\Local\456dd4cb-3aac-4dd1-8735-2d47f74ff10d\build2.exe

          Filesize

          418KB

          MD5

          3567ceb7b97d51ca25326b7fb5c8ec6f

          SHA1

          8cccc90870e6a00cc8240dfab61dfd46c30cbd65

          SHA256

          4df6328ec1e748df2043ceca410088ca2018b6635d91f29451b53ed4416cdac2

          SHA512

          3ded0d9fa7716e9395b92afd11fdfe503b9c4c9ec7bfaf899a191dad37a230803f3cb1e506ff32d2a280de74e42b032e7e8cb491059b1eb62d5a2b36bda65ed9

        • C:\Users\Admin\AppData\Local\456dd4cb-3aac-4dd1-8735-2d47f74ff10d\build2.exe

          Filesize

          418KB

          MD5

          3567ceb7b97d51ca25326b7fb5c8ec6f

          SHA1

          8cccc90870e6a00cc8240dfab61dfd46c30cbd65

          SHA256

          4df6328ec1e748df2043ceca410088ca2018b6635d91f29451b53ed4416cdac2

          SHA512

          3ded0d9fa7716e9395b92afd11fdfe503b9c4c9ec7bfaf899a191dad37a230803f3cb1e506ff32d2a280de74e42b032e7e8cb491059b1eb62d5a2b36bda65ed9

        • C:\Users\Admin\AppData\Local\456dd4cb-3aac-4dd1-8735-2d47f74ff10d\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Local\456dd4cb-3aac-4dd1-8735-2d47f74ff10d\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

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

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • \ProgramData\mozglue.dll

          Filesize

          593KB

          MD5

          c8fd9be83bc728cc04beffafc2907fe9

          SHA1

          95ab9f701e0024cedfbd312bcfe4e726744c4f2e

          SHA256

          ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

          SHA512

          fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

        • \ProgramData\nss3.dll

          Filesize

          2.0MB

          MD5

          1cc453cdf74f31e4d913ff9c10acdde2

          SHA1

          6e85eae544d6e965f15fa5c39700fa7202f3aafe

          SHA256

          ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

          SHA512

          dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

        • memory/404-183-0x0000000000400000-0x00000000004A1000-memory.dmp

          Filesize

          644KB

        • memory/404-180-0x0000000000400000-0x00000000004A1000-memory.dmp

          Filesize

          644KB

        • memory/404-249-0x0000000000400000-0x00000000004A1000-memory.dmp

          Filesize

          644KB

        • memory/404-248-0x0000000000400000-0x00000000004A1000-memory.dmp

          Filesize

          644KB

        • memory/404-247-0x0000000000400000-0x00000000004A1000-memory.dmp

          Filesize

          644KB

        • memory/404-194-0x0000000061E00000-0x0000000061EF3000-memory.dmp

          Filesize

          972KB

        • memory/404-178-0x0000000000400000-0x00000000004A1000-memory.dmp

          Filesize

          644KB

        • memory/404-182-0x0000000000400000-0x00000000004A1000-memory.dmp

          Filesize

          644KB

        • memory/3148-130-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3148-121-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3148-138-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3148-124-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3148-122-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3900-181-0x0000000002110000-0x000000000219D000-memory.dmp

          Filesize

          564KB

        • memory/4404-123-0x0000000002250000-0x000000000236B000-memory.dmp

          Filesize

          1.1MB

        • memory/4484-174-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4484-142-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4484-168-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4484-151-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4484-156-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4484-152-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4484-158-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4484-159-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4484-150-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4484-143-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB