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Analysis

  • max time kernel
    146s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/04/2023, 07:53

General

  • Target

    8a25e2ed1b1aebc3b0a2178ca21abf4109470984df7cc1270ce45662c0f67637.exe

  • Size

    732KB

  • MD5

    9f4d56a66cc580131e79067ad39b2295

  • SHA1

    b315bd1727f54d6d3b1667850780f037814e0f41

  • SHA256

    8a25e2ed1b1aebc3b0a2178ca21abf4109470984df7cc1270ce45662c0f67637

  • SHA512

    d055a4399e1a2306eaf15b99dca24ea29460f9143c8586fef746ae9a0c9c658e3e5991928f08ec6b9ee57ac70de21015aa746b9b59c1c69799013cad48f4b6aa

  • SSDEEP

    12288:M0hMf/4xEcLULZaaA2HOHn7HauDeOa/0FJ9NG+U/1g:M0hUjcoQaAo07HamA/0T9NG+U/1

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .niwm

  • offline_id

    FCP2fiITr4rryFhFBnA59GMgwES5CunmcbPc76t1

  • 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-v8HcfXTy5x 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: 0681SUjhw

rsa_pubkey.plain

Extracted

Family

vidar

Version

3.2

Botnet

5df88deb5dde677ba658b77ad5f60248

C2

https://steamcommunity.com/profiles/76561199489580435

https://t.me/tabootalks

Attributes
  • profile_id_v2

    5df88deb5dde677ba658b77ad5f60248

  • user_agent

    Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36 OPR/91.0.4516.79

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
  • Checks computer location settings 2 TTPs 2 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.

  • Program crash 1 IoCs
  • 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 6 IoCs
  • Suspicious use of WriteProcessMemory 47 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8a25e2ed1b1aebc3b0a2178ca21abf4109470984df7cc1270ce45662c0f67637.exe
    "C:\Users\Admin\AppData\Local\Temp\8a25e2ed1b1aebc3b0a2178ca21abf4109470984df7cc1270ce45662c0f67637.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1368
    • C:\Users\Admin\AppData\Local\Temp\8a25e2ed1b1aebc3b0a2178ca21abf4109470984df7cc1270ce45662c0f67637.exe
      "C:\Users\Admin\AppData\Local\Temp\8a25e2ed1b1aebc3b0a2178ca21abf4109470984df7cc1270ce45662c0f67637.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1500
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\b169b2e6-172e-4646-8061-2277e1e03673" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:3488
      • C:\Users\Admin\AppData\Local\Temp\8a25e2ed1b1aebc3b0a2178ca21abf4109470984df7cc1270ce45662c0f67637.exe
        "C:\Users\Admin\AppData\Local\Temp\8a25e2ed1b1aebc3b0a2178ca21abf4109470984df7cc1270ce45662c0f67637.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2252
        • C:\Users\Admin\AppData\Local\Temp\8a25e2ed1b1aebc3b0a2178ca21abf4109470984df7cc1270ce45662c0f67637.exe
          "C:\Users\Admin\AppData\Local\Temp\8a25e2ed1b1aebc3b0a2178ca21abf4109470984df7cc1270ce45662c0f67637.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:3084
          • C:\Users\Admin\AppData\Local\8baa8854-66a3-42ef-ad54-a72d05c67071\build2.exe
            "C:\Users\Admin\AppData\Local\8baa8854-66a3-42ef-ad54-a72d05c67071\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1748
            • C:\Users\Admin\AppData\Local\8baa8854-66a3-42ef-ad54-a72d05c67071\build2.exe
              "C:\Users\Admin\AppData\Local\8baa8854-66a3-42ef-ad54-a72d05c67071\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:412
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 412 -s 1888
                7⤵
                • Program crash
                PID:4460
          • C:\Users\Admin\AppData\Local\8baa8854-66a3-42ef-ad54-a72d05c67071\build3.exe
            "C:\Users\Admin\AppData\Local\8baa8854-66a3-42ef-ad54-a72d05c67071\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:5096
            • 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:3380
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 412 -ip 412
    1⤵
      PID:1720
    • 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:1752
      • 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:3980

    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

      b636591fc66c9d2a1a425dd29939147f

      SHA1

      0d48b7a8df06ce304c8a8b1c1dae5912c6b666f4

      SHA256

      95c629cd39afdd4a9e98a94b6ea6a85c3e692c27c77d963899177b55948b72d1

      SHA512

      e6be6c7ec5a010a3a3509a567891a0f338bf19e84649f5240e7e500cfc87c752cb28ca6a54aa93d896f4cdf2eac46775bf1165b0085eab23176b237d1bd9ad31

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

      Filesize

      1KB

      MD5

      a8c5ec082ddbfa706307d295f25ae6fa

      SHA1

      9d59be752069e201236a1edec3c3b374afc1b382

      SHA256

      c6e194e6a673e59490dfe69c0ea81bff16de4cb1b9b82408dc2738ec7efe488c

      SHA512

      80441dd81f5edc564f50c550a2b93db1bcf7d809811f8df43896d4d3d85c4bda95e735e67f82edf951f2601c84119f8a0769df3643ec777172f1134132ec6dd8

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

      Filesize

      488B

      MD5

      31aedd55d8d3cc7f3dbcdc4c296b8c87

      SHA1

      bd786299058d2b774515e59301020ee6a1161959

      SHA256

      36749e5bf3f4d56505e01f6e7302e07834ef3cf3e603192e3fb7f108abea3e6a

      SHA512

      13623c42c40c427fc2c877ec6da25a4b2195450441cbcee4bbe2e26c1e60350362638388a2a08388769a4de2de0f844805eadd003354b1c959689ba7c35a8927

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

      Filesize

      482B

      MD5

      6885b540e00559b573ec85685660b443

      SHA1

      c391970da0b148dc77b9a6caccf4f2e1cdf784a4

      SHA256

      7c86e3de632efbc7031f97a354867b2e824aa86e4fc9236f3e35e5891c30729e

      SHA512

      4d8dbefb90bae7193e16772e7642f5627353d40f81ded7fb3f93209f06737027caafd7f6ca284803f09cc8d12b80d6a8b0f41d75c740829626a96d401cca9778

    • C:\Users\Admin\AppData\Local\8baa8854-66a3-42ef-ad54-a72d05c67071\build2.exe

      Filesize

      416KB

      MD5

      aa18968e6cfbdc382ada6a3ed2852085

      SHA1

      4a41fa1a182916d5790aa2071106b3441d64468d

      SHA256

      c165c8db38ef8dd8c33d103b5ee78e9ddafd8081ff0c7c035fa5251f970e6cfb

      SHA512

      8ffdacca2b003438fd4874e7c88beedb6ad8cf9cd5b36fda5907751e06a85a829e7d9ce7335fb59590462f78054722bccba511b21db838368c661d993000a845

    • C:\Users\Admin\AppData\Local\8baa8854-66a3-42ef-ad54-a72d05c67071\build2.exe

      Filesize

      416KB

      MD5

      aa18968e6cfbdc382ada6a3ed2852085

      SHA1

      4a41fa1a182916d5790aa2071106b3441d64468d

      SHA256

      c165c8db38ef8dd8c33d103b5ee78e9ddafd8081ff0c7c035fa5251f970e6cfb

      SHA512

      8ffdacca2b003438fd4874e7c88beedb6ad8cf9cd5b36fda5907751e06a85a829e7d9ce7335fb59590462f78054722bccba511b21db838368c661d993000a845

    • C:\Users\Admin\AppData\Local\8baa8854-66a3-42ef-ad54-a72d05c67071\build2.exe

      Filesize

      416KB

      MD5

      aa18968e6cfbdc382ada6a3ed2852085

      SHA1

      4a41fa1a182916d5790aa2071106b3441d64468d

      SHA256

      c165c8db38ef8dd8c33d103b5ee78e9ddafd8081ff0c7c035fa5251f970e6cfb

      SHA512

      8ffdacca2b003438fd4874e7c88beedb6ad8cf9cd5b36fda5907751e06a85a829e7d9ce7335fb59590462f78054722bccba511b21db838368c661d993000a845

    • C:\Users\Admin\AppData\Local\8baa8854-66a3-42ef-ad54-a72d05c67071\build2.exe

      Filesize

      416KB

      MD5

      aa18968e6cfbdc382ada6a3ed2852085

      SHA1

      4a41fa1a182916d5790aa2071106b3441d64468d

      SHA256

      c165c8db38ef8dd8c33d103b5ee78e9ddafd8081ff0c7c035fa5251f970e6cfb

      SHA512

      8ffdacca2b003438fd4874e7c88beedb6ad8cf9cd5b36fda5907751e06a85a829e7d9ce7335fb59590462f78054722bccba511b21db838368c661d993000a845

    • C:\Users\Admin\AppData\Local\8baa8854-66a3-42ef-ad54-a72d05c67071\build3.exe

      Filesize

      9KB

      MD5

      9ead10c08e72ae41921191f8db39bc16

      SHA1

      abe3bce01cd34afc88e2c838173f8c2bd0090ae1

      SHA256

      8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

      SHA512

      aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

    • C:\Users\Admin\AppData\Local\8baa8854-66a3-42ef-ad54-a72d05c67071\build3.exe

      Filesize

      9KB

      MD5

      9ead10c08e72ae41921191f8db39bc16

      SHA1

      abe3bce01cd34afc88e2c838173f8c2bd0090ae1

      SHA256

      8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

      SHA512

      aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

    • C:\Users\Admin\AppData\Local\8baa8854-66a3-42ef-ad54-a72d05c67071\build3.exe

      Filesize

      9KB

      MD5

      9ead10c08e72ae41921191f8db39bc16

      SHA1

      abe3bce01cd34afc88e2c838173f8c2bd0090ae1

      SHA256

      8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

      SHA512

      aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

    • C:\Users\Admin\AppData\Local\b169b2e6-172e-4646-8061-2277e1e03673\8a25e2ed1b1aebc3b0a2178ca21abf4109470984df7cc1270ce45662c0f67637.exe

      Filesize

      732KB

      MD5

      9f4d56a66cc580131e79067ad39b2295

      SHA1

      b315bd1727f54d6d3b1667850780f037814e0f41

      SHA256

      8a25e2ed1b1aebc3b0a2178ca21abf4109470984df7cc1270ce45662c0f67637

      SHA512

      d055a4399e1a2306eaf15b99dca24ea29460f9143c8586fef746ae9a0c9c658e3e5991928f08ec6b9ee57ac70de21015aa746b9b59c1c69799013cad48f4b6aa

    • 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/412-205-0x0000000061E00000-0x0000000061EF3000-memory.dmp

      Filesize

      972KB

    • memory/412-182-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/412-274-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/412-183-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/412-276-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/412-178-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/412-180-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/412-275-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/1368-136-0x0000000003970000-0x0000000003A8B000-memory.dmp

      Filesize

      1.1MB

    • memory/1500-134-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/1500-138-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/1500-137-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/1500-147-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/1500-135-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/1748-181-0x0000000002E40000-0x0000000002E97000-memory.dmp

      Filesize

      348KB

    • memory/3084-193-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/3084-152-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/3084-166-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/3084-165-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/3084-163-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/3084-159-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/3084-158-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/3084-278-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/3084-157-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/3084-151-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB