Analysis

  • max time kernel
    140s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    22-05-2022 22:41

General

  • Target

    87e954df238fe6fdb49aedeed2e7a27e798fd7497f9be2870d62bed2303504bc.exe

  • Size

    800KB

  • MD5

    21c10ae1b8d4e2862688bad5e0d02310

  • SHA1

    2079399edfa4f9841441643a1e53f6a9a3ac3a32

  • SHA256

    87e954df238fe6fdb49aedeed2e7a27e798fd7497f9be2870d62bed2303504bc

  • SHA512

    f1c25ce99709a74284e2b6658cda6b421b3cf81a430c2213a33e03a7d57700382e8b2f0fea72c1f0d2477afd988c4b4f673cd94d622ef053f17cd6d78414786c

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\87e954df238fe6fdb49aedeed2e7a27e798fd7497f9be2870d62bed2303504bc.exe
    "C:\Users\Admin\AppData\Local\Temp\87e954df238fe6fdb49aedeed2e7a27e798fd7497f9be2870d62bed2303504bc.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1468
    • C:\Users\Admin\AppData\Local\Temp\87e954df238fe6fdb49aedeed2e7a27e798fd7497f9be2870d62bed2303504bc.exe
      "C:\Users\Admin\AppData\Local\Temp\87e954df238fe6fdb49aedeed2e7a27e798fd7497f9be2870d62bed2303504bc.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1172
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\321e9230-e527-4261-95aa-2d02fc56f623" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:2416
      • C:\Users\Admin\AppData\Local\Temp\87e954df238fe6fdb49aedeed2e7a27e798fd7497f9be2870d62bed2303504bc.exe
        "C:\Users\Admin\AppData\Local\Temp\87e954df238fe6fdb49aedeed2e7a27e798fd7497f9be2870d62bed2303504bc.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1632
        • C:\Users\Admin\AppData\Local\Temp\87e954df238fe6fdb49aedeed2e7a27e798fd7497f9be2870d62bed2303504bc.exe
          "C:\Users\Admin\AppData\Local\Temp\87e954df238fe6fdb49aedeed2e7a27e798fd7497f9be2870d62bed2303504bc.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4804
          • C:\Users\Admin\AppData\Local\1459a7cc-9687-4d2c-8f76-ba05d587fe6e\build2.exe
            "C:\Users\Admin\AppData\Local\1459a7cc-9687-4d2c-8f76-ba05d587fe6e\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:4888
            • C:\Users\Admin\AppData\Local\1459a7cc-9687-4d2c-8f76-ba05d587fe6e\build2.exe
              "C:\Users\Admin\AppData\Local\1459a7cc-9687-4d2c-8f76-ba05d587fe6e\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:1772

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

    020657407d8515f31c11512be1fd62a2

    SHA1

    87069b9bff2a8229438b3c07f532d69033a3165f

    SHA256

    714b6255822e81ecd01e47f970a5f1d61c8799d9f4efea539307470b07401fd6

    SHA512

    94258e54cd694c0878628e49aea98e14c851fafccfd85f3649ad0532c99104e341aacf10ee3cf004fed6688cc4f52a0fb4e3487f077b885d1a868461e6ebf6c1

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

    396B

    MD5

    336f0f0e241b4b37d5ec829a905899ce

    SHA1

    5716ed00a9022993b0bf8adaee299526dc17a567

    SHA256

    727d557f47c47615be62657be2d3d18ff95d1ed7a9172cb23fc576bfcbdc1396

    SHA512

    1238edb70480c6b9ae5d6e8d01bf3f74687afb0d43e20e7252d71fd27529b88c70655a24a84159a97b8cbda48eb2dfbad95048aa3b7952aaf65776a9bb12deae

  • C:\Users\Admin\AppData\Local\1459a7cc-9687-4d2c-8f76-ba05d587fe6e\build2.exe
    Filesize

    367KB

    MD5

    3107999f9600f5f2bc88e17282da2773

    SHA1

    8862f9551fdb7dc30e135c556751b973f441e7b4

    SHA256

    aacab9cbbf292403a63bcfd1f6f0a9e534ac39aab406f2c9d7aa98b719f3801f

    SHA512

    50c66565fc457b848014eaf70b3f7cc408e8a818bd29c80daf53597a44c182d26649c249a6e3fe7e6516fc7ff7e7026f3aff4b25ee48645789fa6cd3d3e2f338

  • C:\Users\Admin\AppData\Local\1459a7cc-9687-4d2c-8f76-ba05d587fe6e\build2.exe
    Filesize

    367KB

    MD5

    3107999f9600f5f2bc88e17282da2773

    SHA1

    8862f9551fdb7dc30e135c556751b973f441e7b4

    SHA256

    aacab9cbbf292403a63bcfd1f6f0a9e534ac39aab406f2c9d7aa98b719f3801f

    SHA512

    50c66565fc457b848014eaf70b3f7cc408e8a818bd29c80daf53597a44c182d26649c249a6e3fe7e6516fc7ff7e7026f3aff4b25ee48645789fa6cd3d3e2f338

  • C:\Users\Admin\AppData\Local\1459a7cc-9687-4d2c-8f76-ba05d587fe6e\build2.exe
    Filesize

    367KB

    MD5

    3107999f9600f5f2bc88e17282da2773

    SHA1

    8862f9551fdb7dc30e135c556751b973f441e7b4

    SHA256

    aacab9cbbf292403a63bcfd1f6f0a9e534ac39aab406f2c9d7aa98b719f3801f

    SHA512

    50c66565fc457b848014eaf70b3f7cc408e8a818bd29c80daf53597a44c182d26649c249a6e3fe7e6516fc7ff7e7026f3aff4b25ee48645789fa6cd3d3e2f338

  • C:\Users\Admin\AppData\Local\321e9230-e527-4261-95aa-2d02fc56f623\87e954df238fe6fdb49aedeed2e7a27e798fd7497f9be2870d62bed2303504bc.exe
    Filesize

    800KB

    MD5

    21c10ae1b8d4e2862688bad5e0d02310

    SHA1

    2079399edfa4f9841441643a1e53f6a9a3ac3a32

    SHA256

    87e954df238fe6fdb49aedeed2e7a27e798fd7497f9be2870d62bed2303504bc

    SHA512

    f1c25ce99709a74284e2b6658cda6b421b3cf81a430c2213a33e03a7d57700382e8b2f0fea72c1f0d2477afd988c4b4f673cd94d622ef053f17cd6d78414786c

  • memory/1172-134-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1172-132-0x0000000000000000-mapping.dmp
  • memory/1172-136-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1172-135-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1172-133-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1468-131-0x0000000002280000-0x000000000239B000-memory.dmp
    Filesize

    1.1MB

  • memory/1468-130-0x00000000005E9000-0x000000000067B000-memory.dmp
    Filesize

    584KB

  • memory/1632-143-0x00000000005EA000-0x000000000067C000-memory.dmp
    Filesize

    584KB

  • memory/1632-139-0x0000000000000000-mapping.dmp
  • memory/1772-158-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1772-160-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1772-161-0x0000000060900000-0x0000000060992000-memory.dmp
    Filesize

    584KB

  • memory/1772-153-0x0000000000000000-mapping.dmp
  • memory/1772-154-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1772-156-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/2416-137-0x0000000000000000-mapping.dmp
  • memory/4804-144-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4804-149-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4804-142-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4804-140-0x0000000000000000-mapping.dmp
  • memory/4888-157-0x00000000006E7000-0x0000000000711000-memory.dmp
    Filesize

    168KB

  • memory/4888-159-0x0000000000630000-0x0000000000679000-memory.dmp
    Filesize

    292KB

  • memory/4888-150-0x0000000000000000-mapping.dmp