Analysis

  • max time kernel
    146s
  • max time network
    146s
  • platform
    windows10-1703_x64
  • resource
    win10-20230220-en
  • resource tags

    arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system
  • submitted
    21/03/2023, 11:02

General

  • Target

    ec0669ec521270d16b8be9ab3ba27257920191ba5e6ab390b881eb0af5fc5276.exe

  • Size

    761KB

  • MD5

    f60deda1aa70bbb171757cbff95cfeac

  • SHA1

    5e84dd41aa7d67e437e5155df6270f5c8498cf91

  • SHA256

    ec0669ec521270d16b8be9ab3ba27257920191ba5e6ab390b881eb0af5fc5276

  • SHA512

    746c4c4a9f59526cb076b99b129ab57278fe5e125fc4647be86992cdfe3878b33558ec37905f8813e7354ea6e363ecaec8abb49d332ae07febb0a14c9ec0262b

  • SSDEEP

    12288:yHJ3SZggKu+LYvxoegfrjva/aNibky5y0S2use:KMZggKu3JoegvVibn7us

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .dazx

  • offline_id

    8EM6M9LqEzIk18qaQ87WiPQ1u84RRdej5V1ovht1

  • payload_url

    http://uaery.top/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-vbVkogQdu2 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: 0666JOsie

rsa_pubkey.plain

Extracted

Family

vidar

C2

https://steamcommunity.com/profiles/76561199472266392

Extracted

Family

vidar

Version

h#h#

C2

https://steamcommunity.com/profiles/76561199472266392

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). 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\ec0669ec521270d16b8be9ab3ba27257920191ba5e6ab390b881eb0af5fc5276.exe
    "C:\Users\Admin\AppData\Local\Temp\ec0669ec521270d16b8be9ab3ba27257920191ba5e6ab390b881eb0af5fc5276.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:924
    • C:\Users\Admin\AppData\Local\Temp\ec0669ec521270d16b8be9ab3ba27257920191ba5e6ab390b881eb0af5fc5276.exe
      "C:\Users\Admin\AppData\Local\Temp\ec0669ec521270d16b8be9ab3ba27257920191ba5e6ab390b881eb0af5fc5276.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1184
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\defec216-ca62-4f8e-951a-1bebcf07b518" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4464
      • C:\Users\Admin\AppData\Local\Temp\ec0669ec521270d16b8be9ab3ba27257920191ba5e6ab390b881eb0af5fc5276.exe
        "C:\Users\Admin\AppData\Local\Temp\ec0669ec521270d16b8be9ab3ba27257920191ba5e6ab390b881eb0af5fc5276.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4184
        • C:\Users\Admin\AppData\Local\Temp\ec0669ec521270d16b8be9ab3ba27257920191ba5e6ab390b881eb0af5fc5276.exe
          "C:\Users\Admin\AppData\Local\Temp\ec0669ec521270d16b8be9ab3ba27257920191ba5e6ab390b881eb0af5fc5276.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:400
          • C:\Users\Admin\AppData\Local\b96a87e9-9672-4eb7-850d-e3d4bc0ffc01\build2.exe
            "C:\Users\Admin\AppData\Local\b96a87e9-9672-4eb7-850d-e3d4bc0ffc01\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:3108
            • C:\Users\Admin\AppData\Local\b96a87e9-9672-4eb7-850d-e3d4bc0ffc01\build2.exe
              "C:\Users\Admin\AppData\Local\b96a87e9-9672-4eb7-850d-e3d4bc0ffc01\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:3692
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\b96a87e9-9672-4eb7-850d-e3d4bc0ffc01\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:2776
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:3384
          • C:\Users\Admin\AppData\Local\b96a87e9-9672-4eb7-850d-e3d4bc0ffc01\build3.exe
            "C:\Users\Admin\AppData\Local\b96a87e9-9672-4eb7-850d-e3d4bc0ffc01\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:3904
            • 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:3896
  • 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:4056
    • 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:4404

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

          84770e5e2da7dbc35f74f1301910fea1

          SHA1

          bd6156f63c93c2bc668dbd796d27474700cbff84

          SHA256

          97a616430f4f8b8a76004f3ffab182f6a01870267c53387960f71f56c3dae1c5

          SHA512

          6241fec66ad5219fa31ad47fdd93dea2ef079cfd600d3ec1ca48fe64d028d76a82984113a5052b74de8d678d183e2bafb965f3c6111f3cdf139239b07dfee941

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

          Filesize

          1KB

          MD5

          46695bc8561a32e1833a6d99a77181a0

          SHA1

          b3c30e212f13fe612567d1a0d590ea400225bde2

          SHA256

          8acf929c15a9d787e72809586a1c01d53cd344207ed8f5b5d2f325f4a25f708e

          SHA512

          59a20f6594e628fb465ca887c4987656757d6b479c9fc72995c1bbe4c7ab89a8e60969aa68d7472b8a06bbfa99c01fdd0e87608fef95133463034bc21744e304

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

          Filesize

          488B

          MD5

          2281306b179ea78c91ee5aefe013b41a

          SHA1

          236fca8f1771c88535e255f83847d0eefb652c51

          SHA256

          14347868c1e9be17710e3988769b2e1a1d29772ceb9327eba009d4d4455aa4af

          SHA512

          6a90371a32d309462fe95fab2239d099f1c3adae399ab7a4a8a1d5399e133d253e914f1a38be10f371acc31804a5944d6d94e992fdd9355955db53d885491110

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

          Filesize

          482B

          MD5

          956f5bc3c6980010d0479662f9a1daab

          SHA1

          121102245c138df0e31f97d8851f7de83ca98838

          SHA256

          0b186109d62e159eb1475b43bb978231f8e96ae598fd7be1da32eb855adaddae

          SHA512

          4b83e2cff7fec6b2bf2c75dcd36d47e1d1b3168b09791d281c1867e8d57ab695185b961b394db2b82480d95eb67a0e2db8f9a854def4b5e5f98089f736a42f75

        • C:\Users\Admin\AppData\Local\b96a87e9-9672-4eb7-850d-e3d4bc0ffc01\build2.exe

          Filesize

          299KB

          MD5

          6b343cd7dea3ae28d0819bc55a2f86fe

          SHA1

          cedd49849a5dd678d0a55da607e9b28a9680073c

          SHA256

          4240b655ed2af5ae8873b49e2e2d204383b2fd675c21f02527a9a4d9b719cd49

          SHA512

          7c28ba260fe53879b6e8f69d65c4263d454d75033889162d000c421695e634aeb13f4d4c2b999934f8eb2e58d62913764f1590689925e120600155d8390d0a48

        • C:\Users\Admin\AppData\Local\b96a87e9-9672-4eb7-850d-e3d4bc0ffc01\build2.exe

          Filesize

          299KB

          MD5

          6b343cd7dea3ae28d0819bc55a2f86fe

          SHA1

          cedd49849a5dd678d0a55da607e9b28a9680073c

          SHA256

          4240b655ed2af5ae8873b49e2e2d204383b2fd675c21f02527a9a4d9b719cd49

          SHA512

          7c28ba260fe53879b6e8f69d65c4263d454d75033889162d000c421695e634aeb13f4d4c2b999934f8eb2e58d62913764f1590689925e120600155d8390d0a48

        • C:\Users\Admin\AppData\Local\b96a87e9-9672-4eb7-850d-e3d4bc0ffc01\build2.exe

          Filesize

          299KB

          MD5

          6b343cd7dea3ae28d0819bc55a2f86fe

          SHA1

          cedd49849a5dd678d0a55da607e9b28a9680073c

          SHA256

          4240b655ed2af5ae8873b49e2e2d204383b2fd675c21f02527a9a4d9b719cd49

          SHA512

          7c28ba260fe53879b6e8f69d65c4263d454d75033889162d000c421695e634aeb13f4d4c2b999934f8eb2e58d62913764f1590689925e120600155d8390d0a48

        • C:\Users\Admin\AppData\Local\b96a87e9-9672-4eb7-850d-e3d4bc0ffc01\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Local\b96a87e9-9672-4eb7-850d-e3d4bc0ffc01\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Local\defec216-ca62-4f8e-951a-1bebcf07b518\ec0669ec521270d16b8be9ab3ba27257920191ba5e6ab390b881eb0af5fc5276.exe

          Filesize

          761KB

          MD5

          f60deda1aa70bbb171757cbff95cfeac

          SHA1

          5e84dd41aa7d67e437e5155df6270f5c8498cf91

          SHA256

          ec0669ec521270d16b8be9ab3ba27257920191ba5e6ab390b881eb0af5fc5276

          SHA512

          746c4c4a9f59526cb076b99b129ab57278fe5e125fc4647be86992cdfe3878b33558ec37905f8813e7354ea6e363ecaec8abb49d332ae07febb0a14c9ec0262b

        • 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/400-148-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/400-142-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/400-180-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/400-160-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/400-162-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/400-163-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/400-149-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/400-141-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/400-147-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/400-176-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/924-122-0x00000000025B0000-0x00000000026CB000-memory.dmp

          Filesize

          1.1MB

        • memory/1184-126-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1184-125-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1184-137-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1184-123-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1184-124-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3108-168-0x00000000020A0000-0x00000000020F7000-memory.dmp

          Filesize

          348KB

        • memory/3692-169-0x0000000000400000-0x000000000046C000-memory.dmp

          Filesize

          432KB

        • memory/3692-191-0x0000000061E00000-0x0000000061EF3000-memory.dmp

          Filesize

          972KB

        • memory/3692-170-0x0000000000400000-0x000000000046C000-memory.dmp

          Filesize

          432KB

        • memory/3692-242-0x0000000000400000-0x000000000046C000-memory.dmp

          Filesize

          432KB

        • memory/3692-246-0x0000000000400000-0x000000000046C000-memory.dmp

          Filesize

          432KB

        • memory/3692-247-0x0000000000400000-0x000000000046C000-memory.dmp

          Filesize

          432KB

        • memory/3692-248-0x0000000000400000-0x000000000046C000-memory.dmp

          Filesize

          432KB

        • memory/3692-249-0x0000000000400000-0x000000000046C000-memory.dmp

          Filesize

          432KB

        • memory/3692-167-0x0000000000400000-0x000000000046C000-memory.dmp

          Filesize

          432KB

        • memory/3692-165-0x0000000000400000-0x000000000046C000-memory.dmp

          Filesize

          432KB