Analysis

  • max time kernel
    152s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    16-05-2022 06:13

General

  • Target

    2307748d742d88d49c91d86d6e3f17518f5daaaa7ac93ce268ed45071076e2b4.exe

  • Size

    764KB

  • MD5

    4d58cc06e26e0ad65372f14d53d6d0e8

  • SHA1

    392b9f58406f7d4678066bc3cebdb7590b844b03

  • SHA256

    2307748d742d88d49c91d86d6e3f17518f5daaaa7ac93ce268ed45071076e2b4

  • SHA512

    e97349fa81a4d793ec9efafae179cc2ea960c20ef6ee8fa2a841a4f10d78b86cb4f1786478cee4f3dacd52fab1d8dd39b0ca66d72044268968049312ad38fbee

Malware Config

Extracted

Family

djvu

C2

http://ugll.org/test1/get.php

Attributes
  • extension

    .byya

  • offline_id

    e8w5MeiBrZVoHLoloPm9MNlKBzXH70BB3B2KQ7t1

  • payload_url

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

    http://ugll.org/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-2w6I3WpXEh 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: 0475JIjdm

rsa_pubkey.plain

Extracted

Family

vidar

Version

52.1

Botnet

517

C2

https://t.me/verstappenf1r

https://climatejustice.social/@ronxik312

Attributes
  • profile_id

    517

Signatures

  • Detected Djvu ransomware 8 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

    suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

  • suricata: ET MALWARE W32/Agent.OGR!tr.pws Stealer

    suricata: ET MALWARE W32/Agent.OGR!tr.pws Stealer

  • suricata: ET MALWARE Win32/Filecoder.STOP Variant Public Key Download

    suricata: ET MALWARE Win32/Filecoder.STOP Variant Public Key Download

  • suricata: ET MALWARE Win32/Filecoder.STOP Variant Request for Public Key

    suricata: ET MALWARE Win32/Filecoder.STOP Variant Request for Public Key

  • suricata: ET MALWARE Win32/Vodkagats Loader Requesting Payload

    suricata: ET MALWARE Win32/Vodkagats Loader Requesting Payload

  • Vidar Stealer 5 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Checks computer location settings 2 TTPs 2 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.

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2307748d742d88d49c91d86d6e3f17518f5daaaa7ac93ce268ed45071076e2b4.exe
    "C:\Users\Admin\AppData\Local\Temp\2307748d742d88d49c91d86d6e3f17518f5daaaa7ac93ce268ed45071076e2b4.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4224
    • C:\Users\Admin\AppData\Local\Temp\2307748d742d88d49c91d86d6e3f17518f5daaaa7ac93ce268ed45071076e2b4.exe
      "C:\Users\Admin\AppData\Local\Temp\2307748d742d88d49c91d86d6e3f17518f5daaaa7ac93ce268ed45071076e2b4.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3796
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\46339a42-d57d-40aa-8362-02616ced153c" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:3756
      • C:\Users\Admin\AppData\Local\Temp\2307748d742d88d49c91d86d6e3f17518f5daaaa7ac93ce268ed45071076e2b4.exe
        "C:\Users\Admin\AppData\Local\Temp\2307748d742d88d49c91d86d6e3f17518f5daaaa7ac93ce268ed45071076e2b4.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4456
        • C:\Users\Admin\AppData\Local\Temp\2307748d742d88d49c91d86d6e3f17518f5daaaa7ac93ce268ed45071076e2b4.exe
          "C:\Users\Admin\AppData\Local\Temp\2307748d742d88d49c91d86d6e3f17518f5daaaa7ac93ce268ed45071076e2b4.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:5032
          • C:\Users\Admin\AppData\Local\feec803f-cc30-48db-8f53-3fb7d858ee61\build2.exe
            "C:\Users\Admin\AppData\Local\feec803f-cc30-48db-8f53-3fb7d858ee61\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:3432
            • C:\Users\Admin\AppData\Local\feec803f-cc30-48db-8f53-3fb7d858ee61\build2.exe
              "C:\Users\Admin\AppData\Local\feec803f-cc30-48db-8f53-3fb7d858ee61\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:1900

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

    727B

    MD5

    8ae6f45bb6c9f288a96a3402dc17e2d9

    SHA1

    9ddb0d782cb4728675a1f5b61cfc632997349cdf

    SHA256

    ae4681e5db7de9744bdd78a943d6be6a390aa925125935d6cb691a27c8b2ebd3

    SHA512

    ee94f18f21437c1fba42cca69d535997c89438801ea6e823e99d384e9bc0239b041dc5ed854063a571bac2bbd2f83d7113c7f456d130b15e7db847e7fe4e8ec7

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

    Filesize

    471B

    MD5

    b1c4234d2346ca5a2267de9f0bab4b81

    SHA1

    d6d10976b258ee86430063fdfb1838bb73838aeb

    SHA256

    e75d5e79323e42e337cf188a296db211f5d7dd488d03adf4b1be7836f997e3ed

    SHA512

    8b1d4c34ad847b73d060cb35dba350032be0a8cd82637a5c52805c078ea986ea44446040f588fb4edda4a233e424bdb6dc3ba016b7647936ec4ef4f971ff1e17

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

    Filesize

    402B

    MD5

    49c0015514a7a67acaa0e8785f45327e

    SHA1

    5bc3dedec7dd6974dc019d2c644319b6407937b8

    SHA256

    59da37ad4d3cc8e44ddda85cb82efd9817ef5962088cdc34c931dceff5773c29

    SHA512

    b241e3d9957b62b0ef86e6fe16be7089bc825e05f8038b32a53bba1df3bd1c58cc89b4565f8c5d09970b972dd84edaea94e4c40d4e4202f7d1c655e2ba712d0b

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

    Filesize

    396B

    MD5

    80619350a714c6a5eb17653dce871510

    SHA1

    263af9e9c0ecfd2e5f46810ac7ebb9f14993f6a9

    SHA256

    30ceb399e95c6ba129a6407a8b7ee2a8acf13d88b10b2046b3ec35c8ad3d9cd0

    SHA512

    ad5938d0d1698771e56c066bdad44e6c4ce80a5c232d3667d38f3071575ed3bc65ef43b97743700a7babb40e5035255813a843cbfa5351f0321771e61e7b946e

  • C:\Users\Admin\AppData\Local\46339a42-d57d-40aa-8362-02616ced153c\2307748d742d88d49c91d86d6e3f17518f5daaaa7ac93ce268ed45071076e2b4.exe

    Filesize

    764KB

    MD5

    4d58cc06e26e0ad65372f14d53d6d0e8

    SHA1

    392b9f58406f7d4678066bc3cebdb7590b844b03

    SHA256

    2307748d742d88d49c91d86d6e3f17518f5daaaa7ac93ce268ed45071076e2b4

    SHA512

    e97349fa81a4d793ec9efafae179cc2ea960c20ef6ee8fa2a841a4f10d78b86cb4f1786478cee4f3dacd52fab1d8dd39b0ca66d72044268968049312ad38fbee

  • C:\Users\Admin\AppData\Local\feec803f-cc30-48db-8f53-3fb7d858ee61\build2.exe

    Filesize

    367KB

    MD5

    3107999f9600f5f2bc88e17282da2773

    SHA1

    8862f9551fdb7dc30e135c556751b973f441e7b4

    SHA256

    aacab9cbbf292403a63bcfd1f6f0a9e534ac39aab406f2c9d7aa98b719f3801f

    SHA512

    50c66565fc457b848014eaf70b3f7cc408e8a818bd29c80daf53597a44c182d26649c249a6e3fe7e6516fc7ff7e7026f3aff4b25ee48645789fa6cd3d3e2f338

  • C:\Users\Admin\AppData\Local\feec803f-cc30-48db-8f53-3fb7d858ee61\build2.exe

    Filesize

    367KB

    MD5

    3107999f9600f5f2bc88e17282da2773

    SHA1

    8862f9551fdb7dc30e135c556751b973f441e7b4

    SHA256

    aacab9cbbf292403a63bcfd1f6f0a9e534ac39aab406f2c9d7aa98b719f3801f

    SHA512

    50c66565fc457b848014eaf70b3f7cc408e8a818bd29c80daf53597a44c182d26649c249a6e3fe7e6516fc7ff7e7026f3aff4b25ee48645789fa6cd3d3e2f338

  • C:\Users\Admin\AppData\Local\feec803f-cc30-48db-8f53-3fb7d858ee61\build2.exe

    Filesize

    367KB

    MD5

    3107999f9600f5f2bc88e17282da2773

    SHA1

    8862f9551fdb7dc30e135c556751b973f441e7b4

    SHA256

    aacab9cbbf292403a63bcfd1f6f0a9e534ac39aab406f2c9d7aa98b719f3801f

    SHA512

    50c66565fc457b848014eaf70b3f7cc408e8a818bd29c80daf53597a44c182d26649c249a6e3fe7e6516fc7ff7e7026f3aff4b25ee48645789fa6cd3d3e2f338

  • memory/1900-161-0x0000000060900000-0x0000000060992000-memory.dmp

    Filesize

    584KB

  • memory/1900-160-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1900-159-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1900-156-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1900-154-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1900-153-0x0000000000000000-mapping.dmp

  • memory/3432-150-0x0000000000000000-mapping.dmp

  • memory/3432-158-0x00000000005F0000-0x0000000000639000-memory.dmp

    Filesize

    292KB

  • memory/3432-157-0x0000000000656000-0x0000000000681000-memory.dmp

    Filesize

    172KB

  • memory/3756-137-0x0000000000000000-mapping.dmp

  • memory/3796-131-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3796-135-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3796-132-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3796-136-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3796-130-0x0000000000000000-mapping.dmp

  • memory/4224-133-0x000000000487B000-0x000000000490C000-memory.dmp

    Filesize

    580KB

  • memory/4224-134-0x0000000004920000-0x0000000004A3B000-memory.dmp

    Filesize

    1.1MB

  • memory/4456-142-0x00000000047FE000-0x000000000488F000-memory.dmp

    Filesize

    580KB

  • memory/4456-139-0x0000000000000000-mapping.dmp

  • memory/5032-140-0x0000000000000000-mapping.dmp

  • memory/5032-143-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5032-144-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5032-149-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB