Analysis

  • max time kernel
    148s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    19/03/2024, 06:47

General

  • Target

    180e2b2f71e67f5adc9cb8f36f3dfa31.exe

  • Size

    754KB

  • MD5

    180e2b2f71e67f5adc9cb8f36f3dfa31

  • SHA1

    719f39ebafc712d9f5e70483e88a94a88e4cd70c

  • SHA256

    bf586230320fd2bb84f1173e01abbe304392579b55e1f321ce5f60fec7087f14

  • SHA512

    d546df5da63c42b3b38641dd24fa54c57e49866a11b80329ea177225c9d3475f919f2c866a773bae0d9a54f33ecc4a9152be27ea0babc8d972447f5f3ead6cf4

  • SSDEEP

    12288:CST5ud6X5jcadzHY3IATiMMAMhhckbEqS9ydqhiuSYmNhblzmgmj33zhn:FKCjvUslbES4iuE/lnmLNn

Malware Config

Extracted

Family

djvu

C2

http://sajdfue.com/test2/get.php

Attributes
  • extension

    .looy

  • offline_id

    1eSPzWRaNslCgtjBZfL5pzvovoiaVI4IZSnvAwt1

  • payload_url

    http://sdfjhuz.com/dl/build2.exe

    http://sajdfue.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. Do not ask assistants from youtube and recovery data sites for help in recovering your data. They can use your free decryption quota and scam you. Our contact is emails in this text document only. You can get and look video overview decrypt tool: https://wetransfer.com/downloads/3ed7a617738550b0a00c5aa231c0752020240316170955/d71ce1 Price of private key and decrypt software is $999. Discount 50% available if you contact us first 72 hours, that's price for you is $499. 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: 0858PsawqS

rsa_pubkey.plain

Extracted

Family

vidar

Version

8.4

Botnet

95002d0a9d65ffced363a8f35f42a529

C2

https://steamcommunity.com/profiles/76561199654112719

https://t.me/r2d0s

Attributes
  • profile_id_v2

    95002d0a9d65ffced363a8f35f42a529

  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:123.0) Gecko/20100101 Firefox/123.0

Signatures

  • Detect Vidar Stealer 5 IoCs
  • Detected Djvu ransomware 14 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 8 IoCs
  • Loads dropped DLL 8 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 6 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 1 IoCs
  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\180e2b2f71e67f5adc9cb8f36f3dfa31.exe
    "C:\Users\Admin\AppData\Local\Temp\180e2b2f71e67f5adc9cb8f36f3dfa31.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2872
    • C:\Users\Admin\AppData\Local\Temp\180e2b2f71e67f5adc9cb8f36f3dfa31.exe
      "C:\Users\Admin\AppData\Local\Temp\180e2b2f71e67f5adc9cb8f36f3dfa31.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2368
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\13ea1e56-a01f-4d4f-80e9-bca312ea1032" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:2480
      • C:\Users\Admin\AppData\Local\Temp\180e2b2f71e67f5adc9cb8f36f3dfa31.exe
        "C:\Users\Admin\AppData\Local\Temp\180e2b2f71e67f5adc9cb8f36f3dfa31.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2776
        • C:\Users\Admin\AppData\Local\Temp\180e2b2f71e67f5adc9cb8f36f3dfa31.exe
          "C:\Users\Admin\AppData\Local\Temp\180e2b2f71e67f5adc9cb8f36f3dfa31.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2620
          • C:\Users\Admin\AppData\Local\a731dc3b-28c5-4cf8-b223-66b59cce5452\build2.exe
            "C:\Users\Admin\AppData\Local\a731dc3b-28c5-4cf8-b223-66b59cce5452\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1656
            • C:\Users\Admin\AppData\Local\a731dc3b-28c5-4cf8-b223-66b59cce5452\build2.exe
              "C:\Users\Admin\AppData\Local\a731dc3b-28c5-4cf8-b223-66b59cce5452\build2.exe"
              6⤵
              • Executes dropped EXE
              • Modifies system certificate store
              • Suspicious use of WriteProcessMemory
              PID:1880
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 1880 -s 1460
                7⤵
                • Loads dropped DLL
                • Program crash
                PID:1820
          • C:\Users\Admin\AppData\Local\a731dc3b-28c5-4cf8-b223-66b59cce5452\build3.exe
            "C:\Users\Admin\AppData\Local\a731dc3b-28c5-4cf8-b223-66b59cce5452\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:860
            • C:\Users\Admin\AppData\Local\a731dc3b-28c5-4cf8-b223-66b59cce5452\build3.exe
              "C:\Users\Admin\AppData\Local\a731dc3b-28c5-4cf8-b223-66b59cce5452\build3.exe"
              6⤵
              • Executes dropped EXE
              • Suspicious use of WriteProcessMemory
              PID:2832
              • 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"
                7⤵
                • Creates scheduled task(s)
                PID:584
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {B18C535B-98DE-4C5E-A659-68D218030266} S-1-5-21-3452737119-3959686427-228443150-1000:QGTQZTRE\Admin:Interactive:[1]
    1⤵
      PID:2944
      • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
        C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        PID:2784
        • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
          C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
          3⤵
          • Executes dropped EXE
          PID:2440
          • 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"
            4⤵
            • Creates scheduled task(s)
            PID:2508
      • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
        C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        PID:2260
        • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
          C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
          3⤵
          • Executes dropped EXE
          PID:868

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

      Filesize

      1KB

      MD5

      dba737766caa750561a7d1ef422724cb

      SHA1

      c0c4be5ea552100f6d656d3f955506756d2a6ba8

      SHA256

      5709b340759d61e0be8d4258b9ba874f6de6e02e9519e6bb5ff32cef2f4b5d16

      SHA512

      4e3304b27e1382e71f2f9a0642acba8538fa71805347c00f731e9ed7be339e1a970bc204ebadef609c8dc64ce2e9e555480b36e5dfb4a4e3ee97c687754f8bfa

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

      Filesize

      67KB

      MD5

      753df6889fd7410a2e9fe333da83a429

      SHA1

      3c425f16e8267186061dd48ac1c77c122962456e

      SHA256

      b42dc237e44cbc9a43400e7d3f9cbd406dbdefd62bfe87328f8663897d69df78

      SHA512

      9d56f79410ad0cf852c74c3ef9454e7ae86e80bdd6ff67773994b48ccac71142bcf5c90635da6a056e1406e81e64674db9584928e867c55b77b59e2851cf6444

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

      Filesize

      724B

      MD5

      8202a1cd02e7d69597995cabbe881a12

      SHA1

      8858d9d934b7aa9330ee73de6c476acf19929ff6

      SHA256

      58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5

      SHA512

      97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

      Filesize

      410B

      MD5

      445d0c4a80ea0e75645348aad9192591

      SHA1

      e7f4a7fa0a4ef1f391027c8b7549b6380e54b5a5

      SHA256

      552e2fcb3b8d5c373afc582cd02b6eac8f60293029ba2f30c58c968997c7aa91

      SHA512

      a033c13b914af7bbd541b62c7000709be6748b533f203b42f78e6ea9e60e6e54a767b8b7d016fe4a7f13e1f0b700cac8f7eb0cb88b49fbbb3742a1922f535085

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

      Filesize

      344B

      MD5

      e8ae775f5f482f1fcf9b1167bb295ecd

      SHA1

      33917411ed0e72368a6dd8c7ff10801a016d3e41

      SHA256

      bb05886e291d61a91c54a627ece963f5bb9fd7e15258c7a75c3062b8dcfe04fa

      SHA512

      c12305e1a049743161579d851bf128f751ac595476aa828e48b18792285f751548b490266832a0c0a71c58da66ad749bc732ba60910159be9ee23c8b7e995e91

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

      Filesize

      392B

      MD5

      51cb79d4f08a70748a0b121bfa264f33

      SHA1

      4cbb290fb2ea554b37b044835450f3e77bb5c2d8

      SHA256

      544273a787305db2370c97dcbc21568ca40c87576b23c7ca97fb1406fe186601

      SHA512

      1bde539010653a0fba74e56035e8eeae35eb462d081702ff72989342a727480f6fc0b932032c9f71b32acb8bfdb26724292be35a5fc9253b91cd6ad0f0cff3f9

    • C:\Users\Admin\AppData\Local\13ea1e56-a01f-4d4f-80e9-bca312ea1032\180e2b2f71e67f5adc9cb8f36f3dfa31.exe

      Filesize

      754KB

      MD5

      180e2b2f71e67f5adc9cb8f36f3dfa31

      SHA1

      719f39ebafc712d9f5e70483e88a94a88e4cd70c

      SHA256

      bf586230320fd2bb84f1173e01abbe304392579b55e1f321ce5f60fec7087f14

      SHA512

      d546df5da63c42b3b38641dd24fa54c57e49866a11b80329ea177225c9d3475f919f2c866a773bae0d9a54f33ecc4a9152be27ea0babc8d972447f5f3ead6cf4

    • C:\Users\Admin\AppData\Local\Temp\Cab4940.tmp

      Filesize

      65KB

      MD5

      ac05d27423a85adc1622c714f2cb6184

      SHA1

      b0fe2b1abddb97837ea0195be70ab2ff14d43198

      SHA256

      c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

      SHA512

      6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

    • C:\Users\Admin\AppData\Local\Temp\Tar7273.tmp

      Filesize

      171KB

      MD5

      9c0c641c06238516f27941aa1166d427

      SHA1

      64cd549fb8cf014fcd9312aa7a5b023847b6c977

      SHA256

      4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

      SHA512

      936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

    • C:\Users\Admin\AppData\Local\Temp\Tar7872.tmp

      Filesize

      175KB

      MD5

      dd73cead4b93366cf3465c8cd32e2796

      SHA1

      74546226dfe9ceb8184651e920d1dbfb432b314e

      SHA256

      a6752b7851b591550e4625b832a393aabcc428de18d83e8593cd540f7d7cae22

      SHA512

      ce1bdd595065c94fa528badf4a6a8777893807d6789267612755df818ba6ffe55e4df429710aea29526ee4aa8ef20e25f2f05341da53992157d21ae032c0fb63

    • \Users\Admin\AppData\Local\a731dc3b-28c5-4cf8-b223-66b59cce5452\build2.exe

      Filesize

      342KB

      MD5

      26544ec9adc1864de80222fb0b38e6dc

      SHA1

      2ca52374bb468a8e2c10d39b64d1e4e9d7d0adee

      SHA256

      03b38ccf2c3145839d5ea7c5ccec609de3a67a7e435e94ca05c8c080d9df4411

      SHA512

      f7eb99db8eb4df15ac252bd4523a407b32089d22c435303499bc3813ecdf1ffbc8483417bb97e901fba3e3f36c6e9e47eb30fa78b7c461d3f78f5d5899fae730

    • \Users\Admin\AppData\Local\a731dc3b-28c5-4cf8-b223-66b59cce5452\build3.exe

      Filesize

      299KB

      MD5

      41b883a061c95e9b9cb17d4ca50de770

      SHA1

      1daf96ec21d53d9a4699cea9b4db08cda6fbb5ad

      SHA256

      fef2c8ca07c500e416fd7700a381c39899ee26ce1119f62e7c65cf922ce8b408

      SHA512

      cdd1bb3a36182575cd715a52815765161eeaa3849e72c1c2a9a4e84cc43af9f8ec4997e642702bb3de41f162d2e8fd8717f6f8302bba5306821ee4d155626319

    • memory/860-125-0x0000000000220000-0x0000000000224000-memory.dmp

      Filesize

      16KB

    • memory/860-123-0x0000000000920000-0x0000000000A20000-memory.dmp

      Filesize

      1024KB

    • memory/1656-78-0x0000000000230000-0x0000000000261000-memory.dmp

      Filesize

      196KB

    • memory/1656-76-0x0000000002F46000-0x0000000002F62000-memory.dmp

      Filesize

      112KB

    • memory/1880-80-0x0000000000400000-0x0000000000644000-memory.dmp

      Filesize

      2.3MB

    • memory/1880-244-0x0000000000400000-0x0000000000644000-memory.dmp

      Filesize

      2.3MB

    • memory/1880-74-0x0000000000400000-0x0000000000644000-memory.dmp

      Filesize

      2.3MB

    • memory/1880-79-0x0000000000400000-0x0000000000644000-memory.dmp

      Filesize

      2.3MB

    • memory/1880-72-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2260-285-0x0000000000952000-0x0000000000962000-memory.dmp

      Filesize

      64KB

    • memory/2368-2-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2368-5-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2368-7-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2368-8-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2368-26-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2620-34-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2620-57-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2620-55-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2620-56-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2620-53-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2620-48-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2620-49-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2620-98-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2620-35-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2776-28-0x0000000001DD0000-0x0000000001E62000-memory.dmp

      Filesize

      584KB

    • memory/2776-29-0x0000000001DD0000-0x0000000001E62000-memory.dmp

      Filesize

      584KB

    • memory/2784-254-0x0000000000980000-0x0000000000A80000-memory.dmp

      Filesize

      1024KB

    • memory/2832-129-0x0000000000400000-0x0000000000406000-memory.dmp

      Filesize

      24KB

    • memory/2832-122-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2832-139-0x0000000000400000-0x0000000000406000-memory.dmp

      Filesize

      24KB

    • memory/2832-141-0x0000000000400000-0x0000000000406000-memory.dmp

      Filesize

      24KB

    • memory/2872-0-0x0000000000220000-0x00000000002B2000-memory.dmp

      Filesize

      584KB

    • memory/2872-4-0x0000000001E00000-0x0000000001F1B000-memory.dmp

      Filesize

      1.1MB

    • memory/2872-1-0x0000000000220000-0x00000000002B2000-memory.dmp

      Filesize

      584KB