Analysis

  • max time kernel
    138s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    22-05-2022 11:22

General

  • Target

    a6083f61303b19a42dfeb07ad5bb323cc6e74cf911c241baf00e5cc9d080decb.exe

  • Size

    823KB

  • MD5

    0e142af4f9dd337961914e39d9031161

  • SHA1

    66b088b33477f5ca585cd2c8733ba2447debe287

  • SHA256

    a6083f61303b19a42dfeb07ad5bb323cc6e74cf911c241baf00e5cc9d080decb

  • SHA512

    a035061bdd729ad524ca936762644714c125e829b997aee08b923a51a58bcda7054f2b614ef06411717d493b33ba1ded7cb948a96b35e96e3140cce01d40a311

Malware Config

Extracted

Family

djvu

C2

http://ugll.org/fhsgtsspen6/get.php

Attributes
  • extension

    .fdcv

  • offline_id

    eBNgvyGQV1Hmt9DBdxVRs8qPi1agsS7OaohPmit1

  • 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-j3AdKrnQie 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: admin@helpdata.top Reserve e-mail address to contact us: supportsys@airmail.cc Your personal ID: 0483JIjdm

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\a6083f61303b19a42dfeb07ad5bb323cc6e74cf911c241baf00e5cc9d080decb.exe
    "C:\Users\Admin\AppData\Local\Temp\a6083f61303b19a42dfeb07ad5bb323cc6e74cf911c241baf00e5cc9d080decb.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4708
    • C:\Users\Admin\AppData\Local\Temp\a6083f61303b19a42dfeb07ad5bb323cc6e74cf911c241baf00e5cc9d080decb.exe
      "C:\Users\Admin\AppData\Local\Temp\a6083f61303b19a42dfeb07ad5bb323cc6e74cf911c241baf00e5cc9d080decb.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4692
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\7d3c2b78-7803-4fc0-879c-bf81b93519ab" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4036
      • C:\Users\Admin\AppData\Local\Temp\a6083f61303b19a42dfeb07ad5bb323cc6e74cf911c241baf00e5cc9d080decb.exe
        "C:\Users\Admin\AppData\Local\Temp\a6083f61303b19a42dfeb07ad5bb323cc6e74cf911c241baf00e5cc9d080decb.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2148
        • C:\Users\Admin\AppData\Local\Temp\a6083f61303b19a42dfeb07ad5bb323cc6e74cf911c241baf00e5cc9d080decb.exe
          "C:\Users\Admin\AppData\Local\Temp\a6083f61303b19a42dfeb07ad5bb323cc6e74cf911c241baf00e5cc9d080decb.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4924
          • C:\Users\Admin\AppData\Local\27865106-94fe-4636-8e79-2d3875599fd0\build2.exe
            "C:\Users\Admin\AppData\Local\27865106-94fe-4636-8e79-2d3875599fd0\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:216
            • C:\Users\Admin\AppData\Local\27865106-94fe-4636-8e79-2d3875599fd0\build2.exe
              "C:\Users\Admin\AppData\Local\27865106-94fe-4636-8e79-2d3875599fd0\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:4880

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

File Permissions Modification

1
T1222

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

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

    263d12469947e2539c2a2a04bb056345

    SHA1

    a63fd9efc397db4cc1a82cf89b7fc8e0f6694d39

    SHA256

    102af65a56e5cea616b871487be0aa8525e3258d514ca80d3a2918c3a4f23315

    SHA512

    571bd3d3ec72023ea4ec0861baeff535fc3e71716f2c08c3305f25d615448b13a4d4bc0f7d05c500f523ad13e6ba3c2e2549891c63cc170b7f1743bc8a148df1

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

    471B

    MD5

    1670ab0904b0779e9046a6c0ae0ccf8b

    SHA1

    0030369be3da0ef23ac809d8963fdeb76de17eeb

    SHA256

    34a5f72509ddfed75552cbb5007e460c9c9f6dc6c511b12e32083b1a9c030ba5

    SHA512

    e0cf63ec3f97979c2ad1318954f2daecc3639c3112548796ba8996eb119443a4bca933e1353f1dfd4068de7925ef765a3a9f4f5591702c5876b9a46246415e7e

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

    402B

    MD5

    f3b0954d099596f918632597c0c7b8d0

    SHA1

    a179c112528679b05f77fd6595f7d0de20649b2c

    SHA256

    36cd7ff92943a0d35182cdde2c924418030d647e06db06ebbe25bb03d968067a

    SHA512

    54b6bad5816e822043655d362a49cbe67e9c1abf21100c4d39d22295e7a93dc45891c9fed9639890c730ceca7f7ea947b8f411c73fae84b2e4988d781826ba1c

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

    396B

    MD5

    2a9b0611692799e113b532f57abecb39

    SHA1

    172679d0f8176449dc88f7cf69550a6304c4e11f

    SHA256

    4c60bfbbd88dfb893cbf6dee4470e553fab9956c00a9d6d83544e84cb1e7612c

    SHA512

    159902a2065f374fa018db0fff9909b445a67c416fba64d75ffecbdd2401d200abe461a2cab9368f9e402270668327451a445e6a64ff29dbefd3620fa6c985f6

  • C:\Users\Admin\AppData\Local\27865106-94fe-4636-8e79-2d3875599fd0\build2.exe
    Filesize

    367KB

    MD5

    3107999f9600f5f2bc88e17282da2773

    SHA1

    8862f9551fdb7dc30e135c556751b973f441e7b4

    SHA256

    aacab9cbbf292403a63bcfd1f6f0a9e534ac39aab406f2c9d7aa98b719f3801f

    SHA512

    50c66565fc457b848014eaf70b3f7cc408e8a818bd29c80daf53597a44c182d26649c249a6e3fe7e6516fc7ff7e7026f3aff4b25ee48645789fa6cd3d3e2f338

  • C:\Users\Admin\AppData\Local\27865106-94fe-4636-8e79-2d3875599fd0\build2.exe
    Filesize

    367KB

    MD5

    3107999f9600f5f2bc88e17282da2773

    SHA1

    8862f9551fdb7dc30e135c556751b973f441e7b4

    SHA256

    aacab9cbbf292403a63bcfd1f6f0a9e534ac39aab406f2c9d7aa98b719f3801f

    SHA512

    50c66565fc457b848014eaf70b3f7cc408e8a818bd29c80daf53597a44c182d26649c249a6e3fe7e6516fc7ff7e7026f3aff4b25ee48645789fa6cd3d3e2f338

  • C:\Users\Admin\AppData\Local\27865106-94fe-4636-8e79-2d3875599fd0\build2.exe
    Filesize

    367KB

    MD5

    3107999f9600f5f2bc88e17282da2773

    SHA1

    8862f9551fdb7dc30e135c556751b973f441e7b4

    SHA256

    aacab9cbbf292403a63bcfd1f6f0a9e534ac39aab406f2c9d7aa98b719f3801f

    SHA512

    50c66565fc457b848014eaf70b3f7cc408e8a818bd29c80daf53597a44c182d26649c249a6e3fe7e6516fc7ff7e7026f3aff4b25ee48645789fa6cd3d3e2f338

  • C:\Users\Admin\AppData\Local\7d3c2b78-7803-4fc0-879c-bf81b93519ab\a6083f61303b19a42dfeb07ad5bb323cc6e74cf911c241baf00e5cc9d080decb.exe
    Filesize

    823KB

    MD5

    0e142af4f9dd337961914e39d9031161

    SHA1

    66b088b33477f5ca585cd2c8733ba2447debe287

    SHA256

    a6083f61303b19a42dfeb07ad5bb323cc6e74cf911c241baf00e5cc9d080decb

    SHA512

    a035061bdd729ad524ca936762644714c125e829b997aee08b923a51a58bcda7054f2b614ef06411717d493b33ba1ded7cb948a96b35e96e3140cce01d40a311

  • memory/216-156-0x0000000000706000-0x0000000000731000-memory.dmp
    Filesize

    172KB

  • memory/216-158-0x0000000000610000-0x0000000000659000-memory.dmp
    Filesize

    292KB

  • memory/216-150-0x0000000000000000-mapping.dmp
  • memory/2148-144-0x000000000067C000-0x000000000070E000-memory.dmp
    Filesize

    584KB

  • memory/2148-139-0x0000000000000000-mapping.dmp
  • memory/4036-136-0x0000000000000000-mapping.dmp
  • memory/4692-138-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4692-130-0x0000000000000000-mapping.dmp
  • memory/4692-135-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4692-131-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4692-132-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4708-134-0x00000000021B0000-0x00000000022CB000-memory.dmp
    Filesize

    1.1MB

  • memory/4708-133-0x0000000000776000-0x0000000000808000-memory.dmp
    Filesize

    584KB

  • memory/4880-160-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/4880-154-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/4880-157-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/4880-159-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/4880-161-0x0000000060900000-0x0000000060992000-memory.dmp
    Filesize

    584KB

  • memory/4880-153-0x0000000000000000-mapping.dmp
  • memory/4924-142-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4924-140-0x0000000000000000-mapping.dmp
  • memory/4924-145-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4924-143-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB