Analysis

  • max time kernel
    138s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    22-05-2022 08:40

General

  • Target

    79289fc3c2714c5a871b8980e5b82771fda7be5ec89c8899f096b0fbbac85863.exe

  • Size

    824KB

  • MD5

    aeef875bb61c7b6d108c43d8470de9d0

  • SHA1

    c92c59bc4420045feae86556a4cc70e9670208d0

  • SHA256

    79289fc3c2714c5a871b8980e5b82771fda7be5ec89c8899f096b0fbbac85863

  • SHA512

    092b68b8500d1a6d0ec1c601e0dab5b3ec02c8434eb94708d696cbfe78934d446c78d138a5674d41924e59aae57deea8de9c6da152c843593e46855426171e49

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\79289fc3c2714c5a871b8980e5b82771fda7be5ec89c8899f096b0fbbac85863.exe
    "C:\Users\Admin\AppData\Local\Temp\79289fc3c2714c5a871b8980e5b82771fda7be5ec89c8899f096b0fbbac85863.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2620
    • C:\Users\Admin\AppData\Local\Temp\79289fc3c2714c5a871b8980e5b82771fda7be5ec89c8899f096b0fbbac85863.exe
      "C:\Users\Admin\AppData\Local\Temp\79289fc3c2714c5a871b8980e5b82771fda7be5ec89c8899f096b0fbbac85863.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3428
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\99081475-adc1-4508-a097-3a0faba8add9" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4508
      • C:\Users\Admin\AppData\Local\Temp\79289fc3c2714c5a871b8980e5b82771fda7be5ec89c8899f096b0fbbac85863.exe
        "C:\Users\Admin\AppData\Local\Temp\79289fc3c2714c5a871b8980e5b82771fda7be5ec89c8899f096b0fbbac85863.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4648
        • C:\Users\Admin\AppData\Local\Temp\79289fc3c2714c5a871b8980e5b82771fda7be5ec89c8899f096b0fbbac85863.exe
          "C:\Users\Admin\AppData\Local\Temp\79289fc3c2714c5a871b8980e5b82771fda7be5ec89c8899f096b0fbbac85863.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:856
          • C:\Users\Admin\AppData\Local\6952fce1-d5b3-411b-95ab-7007bc015e3b\build2.exe
            "C:\Users\Admin\AppData\Local\6952fce1-d5b3-411b-95ab-7007bc015e3b\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1388
            • C:\Users\Admin\AppData\Local\6952fce1-d5b3-411b-95ab-7007bc015e3b\build2.exe
              "C:\Users\Admin\AppData\Local\6952fce1-d5b3-411b-95ab-7007bc015e3b\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:1476

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

    e143e157c871049aef9eff0131def320

    SHA1

    a05b0325ec80f55e1cd0f7c8bcb586ab287aa85c

    SHA256

    bcdf28d2b276f8de1a0e44afbe25464f52abbe8bbee88f4335590f9ad0f28030

    SHA512

    cda49047beed3cf67bba49009c778c7d6e0ccfb887dda7bd9ea20f9173484250a17426f196d5c02a5e1fc9c26d12ed61abb3cb488486a7e0d4babebb42b3f488

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

    396B

    MD5

    5fad5037831d3ed38d4b67d0e6a3f993

    SHA1

    c87c47a66c8c81d5a0878e021745a1f4abb6044f

    SHA256

    53bb92745910e616fa12572523dc66daaebba3300a3cb3962addf3d734bef022

    SHA512

    dfa9283648458d01d18d32a097d88f0b87943222bf604ed0878a6fb98b77bc5778474d7ed177265de608cab4efae293896be2dd037a275254c0dac05027b013f

  • C:\Users\Admin\AppData\Local\6952fce1-d5b3-411b-95ab-7007bc015e3b\build2.exe
    Filesize

    367KB

    MD5

    3107999f9600f5f2bc88e17282da2773

    SHA1

    8862f9551fdb7dc30e135c556751b973f441e7b4

    SHA256

    aacab9cbbf292403a63bcfd1f6f0a9e534ac39aab406f2c9d7aa98b719f3801f

    SHA512

    50c66565fc457b848014eaf70b3f7cc408e8a818bd29c80daf53597a44c182d26649c249a6e3fe7e6516fc7ff7e7026f3aff4b25ee48645789fa6cd3d3e2f338

  • C:\Users\Admin\AppData\Local\6952fce1-d5b3-411b-95ab-7007bc015e3b\build2.exe
    Filesize

    367KB

    MD5

    3107999f9600f5f2bc88e17282da2773

    SHA1

    8862f9551fdb7dc30e135c556751b973f441e7b4

    SHA256

    aacab9cbbf292403a63bcfd1f6f0a9e534ac39aab406f2c9d7aa98b719f3801f

    SHA512

    50c66565fc457b848014eaf70b3f7cc408e8a818bd29c80daf53597a44c182d26649c249a6e3fe7e6516fc7ff7e7026f3aff4b25ee48645789fa6cd3d3e2f338

  • C:\Users\Admin\AppData\Local\6952fce1-d5b3-411b-95ab-7007bc015e3b\build2.exe
    Filesize

    367KB

    MD5

    3107999f9600f5f2bc88e17282da2773

    SHA1

    8862f9551fdb7dc30e135c556751b973f441e7b4

    SHA256

    aacab9cbbf292403a63bcfd1f6f0a9e534ac39aab406f2c9d7aa98b719f3801f

    SHA512

    50c66565fc457b848014eaf70b3f7cc408e8a818bd29c80daf53597a44c182d26649c249a6e3fe7e6516fc7ff7e7026f3aff4b25ee48645789fa6cd3d3e2f338

  • C:\Users\Admin\AppData\Local\99081475-adc1-4508-a097-3a0faba8add9\79289fc3c2714c5a871b8980e5b82771fda7be5ec89c8899f096b0fbbac85863.exe
    Filesize

    824KB

    MD5

    aeef875bb61c7b6d108c43d8470de9d0

    SHA1

    c92c59bc4420045feae86556a4cc70e9670208d0

    SHA256

    79289fc3c2714c5a871b8980e5b82771fda7be5ec89c8899f096b0fbbac85863

    SHA512

    092b68b8500d1a6d0ec1c601e0dab5b3ec02c8434eb94708d696cbfe78934d446c78d138a5674d41924e59aae57deea8de9c6da152c843593e46855426171e49

  • memory/856-140-0x0000000000000000-mapping.dmp
  • memory/856-142-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/856-144-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/856-149-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1388-157-0x0000000000596000-0x00000000005C1000-memory.dmp
    Filesize

    172KB

  • memory/1388-158-0x0000000000850000-0x0000000000899000-memory.dmp
    Filesize

    292KB

  • memory/1388-150-0x0000000000000000-mapping.dmp
  • memory/1476-159-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1476-160-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1476-161-0x0000000060900000-0x0000000060992000-memory.dmp
    Filesize

    584KB

  • memory/1476-156-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1476-153-0x0000000000000000-mapping.dmp
  • memory/1476-154-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/2620-131-0x0000000002300000-0x000000000241B000-memory.dmp
    Filesize

    1.1MB

  • memory/2620-130-0x00000000007E0000-0x0000000000872000-memory.dmp
    Filesize

    584KB

  • memory/3428-134-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/3428-132-0x0000000000000000-mapping.dmp
  • memory/3428-135-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/3428-136-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/3428-133-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4508-137-0x0000000000000000-mapping.dmp
  • memory/4648-139-0x0000000000000000-mapping.dmp
  • memory/4648-143-0x00000000007A0000-0x0000000000832000-memory.dmp
    Filesize

    584KB