Analysis

  • max time kernel
    75s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/12/2022, 10:37

General

  • Target

    8eb99f0901ce149bdb445b77d32ef17031ec27f2e0f7d4e8d8352464537b5f4a.exe

  • Size

    879KB

  • MD5

    4bc7d26b10e95174f4ccfc6c4e4a6566

  • SHA1

    68019b72bd20aadb51bb19a72dd6d9cb97ec01dd

  • SHA256

    8eb99f0901ce149bdb445b77d32ef17031ec27f2e0f7d4e8d8352464537b5f4a

  • SHA512

    38db117bf3589a380850242e0d1410a31d7335865df4ae360ce6d569f11bb95dd1a45848f0f023b3de482655d10c408d0e673cc1bb60dca3be9eae9f865733a8

  • SSDEEP

    24576:xesKWA1pJLGn2ObLsm/4U6EUkNqOEVhG3xvXp:xeXlJLafb4m/4UhxUhuxv5

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .mppn

  • offline_id

    d1BN9KEra4Hetg5GUH0nQZqy14sntD2NbihzGQt1

  • payload_url

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

    http://fresherlights.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-8aIWIsUQt9 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: 0612Jhyjd

rsa_pubkey.plain

Extracted

Family

vidar

Version

56

Botnet

517

C2

https://t.me/asifrazatg

https://steamcommunity.com/profiles/76561199439929669

Attributes
  • profile_id

    517

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
  • Executes dropped EXE 4 IoCs
  • Checks computer location settings 2 TTPs 3 IoCs

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

  • 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\8eb99f0901ce149bdb445b77d32ef17031ec27f2e0f7d4e8d8352464537b5f4a.exe
    "C:\Users\Admin\AppData\Local\Temp\8eb99f0901ce149bdb445b77d32ef17031ec27f2e0f7d4e8d8352464537b5f4a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4752
    • C:\Users\Admin\AppData\Local\Temp\8eb99f0901ce149bdb445b77d32ef17031ec27f2e0f7d4e8d8352464537b5f4a.exe
      "C:\Users\Admin\AppData\Local\Temp\8eb99f0901ce149bdb445b77d32ef17031ec27f2e0f7d4e8d8352464537b5f4a.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3044
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\67496506-dd2c-43c7-9ab3-322313cc91a3" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:5012
      • C:\Users\Admin\AppData\Local\Temp\8eb99f0901ce149bdb445b77d32ef17031ec27f2e0f7d4e8d8352464537b5f4a.exe
        "C:\Users\Admin\AppData\Local\Temp\8eb99f0901ce149bdb445b77d32ef17031ec27f2e0f7d4e8d8352464537b5f4a.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1092
        • C:\Users\Admin\AppData\Local\Temp\8eb99f0901ce149bdb445b77d32ef17031ec27f2e0f7d4e8d8352464537b5f4a.exe
          "C:\Users\Admin\AppData\Local\Temp\8eb99f0901ce149bdb445b77d32ef17031ec27f2e0f7d4e8d8352464537b5f4a.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1848
          • C:\Users\Admin\AppData\Local\e3a5aa40-1205-4c67-8103-61ec192ce094\build2.exe
            "C:\Users\Admin\AppData\Local\e3a5aa40-1205-4c67-8103-61ec192ce094\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1016
            • C:\Users\Admin\AppData\Local\e3a5aa40-1205-4c67-8103-61ec192ce094\build2.exe
              "C:\Users\Admin\AppData\Local\e3a5aa40-1205-4c67-8103-61ec192ce094\build2.exe"
              6⤵
              • Executes dropped EXE
              • Checks computer location settings
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:912
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\e3a5aa40-1205-4c67-8103-61ec192ce094\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:1944
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:4528
          • C:\Users\Admin\AppData\Local\e3a5aa40-1205-4c67-8103-61ec192ce094\build3.exe
            "C:\Users\Admin\AppData\Local\e3a5aa40-1205-4c67-8103-61ec192ce094\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:3948
            • 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:1160
  • 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:876
    • 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:4748

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\ProgramData\mozglue.dll

    Filesize

    133KB

    MD5

    8f73c08a9660691143661bf7332c3c27

    SHA1

    37fa65dd737c50fda710fdbde89e51374d0c204a

    SHA256

    3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

    SHA512

    0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

  • C:\ProgramData\nss3.dll

    Filesize

    1.2MB

    MD5

    bfac4e3c5908856ba17d41edcd455a51

    SHA1

    8eec7e888767aa9e4cca8ff246eb2aacb9170428

    SHA256

    e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

    SHA512

    2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

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

    Filesize

    2KB

    MD5

    97acf0930ce9f2f69d40ed8e1178cec6

    SHA1

    6380a2d97e4b4ccc3b4598cc2d431702e54ed69c

    SHA256

    b38f02de41dbb7db433a5f440dff85432150ff71d53b7ef8792d96da80962343

    SHA512

    f49c8a4fa51127e7d8b71cd0257bbedc8855ea708ec0e313e5071b656aedb815b55e51619df24ed967c4df0e685a4940cc1f123aa4ee0198a3d1ada1b42480e1

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

    Filesize

    1KB

    MD5

    c51850a96d359a09a3a3a2249c52a92d

    SHA1

    4a4606bc3ebee0d4cf4a0f028d931945490d2665

    SHA256

    d66175ec867bee8f450f2f3ad05d9d161384241244e6d5cf791a608dd31ef175

    SHA512

    832204ccb7f74e8fd1e5f3ae2485227d94f4c5ae025695369e8affacb49307b3f2a20bac69a52d9835338bc84271cd3d1c7675f7f6a7f7a25e6f85141027dff6

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

    Filesize

    488B

    MD5

    80d6ec83263f9e59d876e6416176edd0

    SHA1

    94fac87a067cf0eaae5f91b19c505dfe1e90be66

    SHA256

    ced0faeb16687848bf3152036913a3aa7a9dc1f3adad135a331b3923ab3294a5

    SHA512

    d4b68140260b28d07982c6043816e0f5d3a4914dfd15d4293ff02b8346c362e0f9f75036c9cbb3d9aefe402c158c62beea4642d309dd2634e90a9403aea9698b

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

    Filesize

    482B

    MD5

    924e99f7418fe8d555063383af9e3aa3

    SHA1

    07fa14c81b1b3ca06884b058635489ca6a7ece76

    SHA256

    76fe56ccae7bb4da6516409e4e913312a1dbbc455d8833f28c22a5582dfb9ce7

    SHA512

    7014e39d1b91566ff3f9470aaf53c77de68d8633b0537b17a4a433bbb9c0e8db3dff37c89fd7e88ccdad2019a5347b9de99ce7de1fa877fecf9d83533895ad65

  • C:\Users\Admin\AppData\Local\67496506-dd2c-43c7-9ab3-322313cc91a3\8eb99f0901ce149bdb445b77d32ef17031ec27f2e0f7d4e8d8352464537b5f4a.exe

    Filesize

    879KB

    MD5

    4bc7d26b10e95174f4ccfc6c4e4a6566

    SHA1

    68019b72bd20aadb51bb19a72dd6d9cb97ec01dd

    SHA256

    8eb99f0901ce149bdb445b77d32ef17031ec27f2e0f7d4e8d8352464537b5f4a

    SHA512

    38db117bf3589a380850242e0d1410a31d7335865df4ae360ce6d569f11bb95dd1a45848f0f023b3de482655d10c408d0e673cc1bb60dca3be9eae9f865733a8

  • C:\Users\Admin\AppData\Local\e3a5aa40-1205-4c67-8103-61ec192ce094\build2.exe

    Filesize

    258KB

    MD5

    b9212ded69fae1fa1fb5d6db46a9fb76

    SHA1

    58face4245646b1cd379ee49f03a701eab1642be

    SHA256

    7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f

    SHA512

    09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342

  • C:\Users\Admin\AppData\Local\e3a5aa40-1205-4c67-8103-61ec192ce094\build2.exe

    Filesize

    258KB

    MD5

    b9212ded69fae1fa1fb5d6db46a9fb76

    SHA1

    58face4245646b1cd379ee49f03a701eab1642be

    SHA256

    7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f

    SHA512

    09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342

  • C:\Users\Admin\AppData\Local\e3a5aa40-1205-4c67-8103-61ec192ce094\build2.exe

    Filesize

    258KB

    MD5

    b9212ded69fae1fa1fb5d6db46a9fb76

    SHA1

    58face4245646b1cd379ee49f03a701eab1642be

    SHA256

    7a087c1bcd038c61ddb0f634f9b21e6db9bed59842f19adeda48b49acb20e16f

    SHA512

    09cab8ccedb9e53d6d2725e8b9dbbe8fa9552607a58d89876b6539a6612b2e7ac0440ef281971bec9191510915fa6264048510add493e6a862b0d3b4f006e342

  • C:\Users\Admin\AppData\Local\e3a5aa40-1205-4c67-8103-61ec192ce094\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\e3a5aa40-1205-4c67-8103-61ec192ce094\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/912-190-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/912-167-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/912-168-0x0000000060900000-0x0000000060992000-memory.dmp

    Filesize

    584KB

  • memory/912-160-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/912-157-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/912-159-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1016-161-0x00000000007CD000-0x00000000007F9000-memory.dmp

    Filesize

    176KB

  • memory/1016-162-0x00000000005C0000-0x000000000060B000-memory.dmp

    Filesize

    300KB

  • memory/1092-146-0x00000000004F9000-0x000000000058B000-memory.dmp

    Filesize

    584KB

  • memory/1848-152-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1848-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1848-145-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1848-192-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3044-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3044-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3044-134-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3044-142-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3044-133-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4752-136-0x0000000000950000-0x0000000000A6B000-memory.dmp

    Filesize

    1.1MB

  • memory/4752-135-0x00000000006D6000-0x0000000000768000-memory.dmp

    Filesize

    584KB