Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10_x64
  • resource
    win10-20220414-en
  • submitted
    17-05-2022 06:47

General

  • Target

    5d387b9f3c2de7435eff67d801b843a3de596a84dcf3a0ca5e25dd661e0933af.exe

  • Size

    849KB

  • MD5

    c55df8599b9981881c0f4ada14029431

  • SHA1

    e9515a4e44edde8a3b8a6db46d45d3e86e88051a

  • SHA256

    5d387b9f3c2de7435eff67d801b843a3de596a84dcf3a0ca5e25dd661e0933af

  • SHA512

    916415058e201bf0b2382f621b827336b0ed59dea1b343520066b12782a90e3c1f23e98551556696785000dc229988cc7be6e5803bdb31be34a3b24b2e9a2b61

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: [email protected] Reserve e-mail address to contact us: [email protected] 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 7 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 3 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • 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\5d387b9f3c2de7435eff67d801b843a3de596a84dcf3a0ca5e25dd661e0933af.exe
    "C:\Users\Admin\AppData\Local\Temp\5d387b9f3c2de7435eff67d801b843a3de596a84dcf3a0ca5e25dd661e0933af.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3052
    • C:\Users\Admin\AppData\Local\Temp\5d387b9f3c2de7435eff67d801b843a3de596a84dcf3a0ca5e25dd661e0933af.exe
      "C:\Users\Admin\AppData\Local\Temp\5d387b9f3c2de7435eff67d801b843a3de596a84dcf3a0ca5e25dd661e0933af.exe"
      2⤵
      • Adds Run key to start application
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2668
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\21821451-70b4-48ba-8020-d7f9f2c3bcf9" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:2936
      • C:\Users\Admin\AppData\Local\Temp\5d387b9f3c2de7435eff67d801b843a3de596a84dcf3a0ca5e25dd661e0933af.exe
        "C:\Users\Admin\AppData\Local\Temp\5d387b9f3c2de7435eff67d801b843a3de596a84dcf3a0ca5e25dd661e0933af.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:308
        • C:\Users\Admin\AppData\Local\Temp\5d387b9f3c2de7435eff67d801b843a3de596a84dcf3a0ca5e25dd661e0933af.exe
          "C:\Users\Admin\AppData\Local\Temp\5d387b9f3c2de7435eff67d801b843a3de596a84dcf3a0ca5e25dd661e0933af.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4072
          • C:\Users\Admin\AppData\Local\236f939a-b452-4beb-a7d6-e03df36ee55a\build2.exe
            "C:\Users\Admin\AppData\Local\236f939a-b452-4beb-a7d6-e03df36ee55a\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1120
            • C:\Users\Admin\AppData\Local\236f939a-b452-4beb-a7d6-e03df36ee55a\build2.exe
              "C:\Users\Admin\AppData\Local\236f939a-b452-4beb-a7d6-e03df36ee55a\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:856

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

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • 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

    85300b9ff77a13e0b744c3414446d43b

    SHA1

    5b116713625121b71846ccd87c5681b87b9b13b7

    SHA256

    71ed02384237e6d174453f25ee37e5b5d54d6cd1ae5e7c4c67f63215e912f232

    SHA512

    f80b0caba2f844d9b0f81760ba833b25c78c030f7b0fa302334b5bcf6aae44761e835f72c038ee16cfc0bb5ab21ba5d38ea82dbb3bf7ec565d04c21763b9e4da

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

    396B

    MD5

    54a528431bfee3871c2e69e8aab0eda8

    SHA1

    8bcede87668a9cd72473374df6b86ebcec16bab1

    SHA256

    801f78a8780d1f80f7d15bf74c306484f2168cf827b86fda653109c70dfb4a38

    SHA512

    1071c90cf4ff5b19fd9e8145ba90e244e1d9dd47b470cfe9faaf86fc4edd1b02669cfca8821d0c5379a81a5e91c0facae59cd1ea0f224de944d632266f259d80

  • C:\Users\Admin\AppData\Local\21821451-70b4-48ba-8020-d7f9f2c3bcf9\5d387b9f3c2de7435eff67d801b843a3de596a84dcf3a0ca5e25dd661e0933af.exe
    Filesize

    849KB

    MD5

    c55df8599b9981881c0f4ada14029431

    SHA1

    e9515a4e44edde8a3b8a6db46d45d3e86e88051a

    SHA256

    5d387b9f3c2de7435eff67d801b843a3de596a84dcf3a0ca5e25dd661e0933af

    SHA512

    916415058e201bf0b2382f621b827336b0ed59dea1b343520066b12782a90e3c1f23e98551556696785000dc229988cc7be6e5803bdb31be34a3b24b2e9a2b61

  • C:\Users\Admin\AppData\Local\236f939a-b452-4beb-a7d6-e03df36ee55a\build2.exe
    Filesize

    367KB

    MD5

    3107999f9600f5f2bc88e17282da2773

    SHA1

    8862f9551fdb7dc30e135c556751b973f441e7b4

    SHA256

    aacab9cbbf292403a63bcfd1f6f0a9e534ac39aab406f2c9d7aa98b719f3801f

    SHA512

    50c66565fc457b848014eaf70b3f7cc408e8a818bd29c80daf53597a44c182d26649c249a6e3fe7e6516fc7ff7e7026f3aff4b25ee48645789fa6cd3d3e2f338

  • C:\Users\Admin\AppData\Local\236f939a-b452-4beb-a7d6-e03df36ee55a\build2.exe
    Filesize

    367KB

    MD5

    3107999f9600f5f2bc88e17282da2773

    SHA1

    8862f9551fdb7dc30e135c556751b973f441e7b4

    SHA256

    aacab9cbbf292403a63bcfd1f6f0a9e534ac39aab406f2c9d7aa98b719f3801f

    SHA512

    50c66565fc457b848014eaf70b3f7cc408e8a818bd29c80daf53597a44c182d26649c249a6e3fe7e6516fc7ff7e7026f3aff4b25ee48645789fa6cd3d3e2f338

  • C:\Users\Admin\AppData\Local\236f939a-b452-4beb-a7d6-e03df36ee55a\build2.exe
    Filesize

    367KB

    MD5

    3107999f9600f5f2bc88e17282da2773

    SHA1

    8862f9551fdb7dc30e135c556751b973f441e7b4

    SHA256

    aacab9cbbf292403a63bcfd1f6f0a9e534ac39aab406f2c9d7aa98b719f3801f

    SHA512

    50c66565fc457b848014eaf70b3f7cc408e8a818bd29c80daf53597a44c182d26649c249a6e3fe7e6516fc7ff7e7026f3aff4b25ee48645789fa6cd3d3e2f338

  • \ProgramData\mozglue.dll
    Filesize

    133KB

    MD5

    8f73c08a9660691143661bf7332c3c27

    SHA1

    37fa65dd737c50fda710fdbde89e51374d0c204a

    SHA256

    3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

    SHA512

    0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

  • \ProgramData\nss3.dll
    Filesize

    1.2MB

    MD5

    bfac4e3c5908856ba17d41edcd455a51

    SHA1

    8eec7e888767aa9e4cca8ff246eb2aacb9170428

    SHA256

    e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

    SHA512

    2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

  • memory/308-270-0x0000000000AD0000-0x0000000000B6E000-memory.dmp
    Filesize

    632KB

  • memory/308-242-0x0000000000000000-mapping.dmp
  • memory/856-397-0x000000000042103C-mapping.dmp
  • memory/856-444-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/1120-364-0x0000000000000000-mapping.dmp
  • memory/1120-401-0x0000000000900000-0x0000000000949000-memory.dmp
    Filesize

    292KB

  • memory/2668-172-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/2668-167-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/2668-191-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2668-162-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/2668-169-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/2668-174-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/2668-176-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/2668-178-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/2668-179-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/2668-180-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/2668-177-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/2668-175-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/2668-143-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2668-144-0x0000000000424141-mapping.dmp
  • memory/2668-173-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/2668-145-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/2668-147-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/2668-149-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/2668-150-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/2668-148-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/2668-151-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2668-153-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/2668-154-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/2668-152-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/2668-155-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/2668-156-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/2668-157-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/2668-158-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/2668-159-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/2668-160-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/2668-161-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/2668-163-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/2668-164-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/2668-165-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/2668-166-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/2668-171-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/2668-168-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/2668-170-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/2936-216-0x0000000000000000-mapping.dmp
  • memory/3052-129-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/3052-115-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/3052-130-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/3052-140-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/3052-139-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/3052-138-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/3052-137-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/3052-136-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/3052-114-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/3052-135-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/3052-134-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/3052-133-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/3052-146-0x0000000002260000-0x000000000237B000-memory.dmp
    Filesize

    1.1MB

  • memory/3052-131-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/3052-141-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/3052-132-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/3052-142-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/3052-116-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/3052-127-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/3052-125-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/3052-126-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/3052-123-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/3052-124-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/3052-122-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/3052-121-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/3052-120-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/3052-119-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/3052-118-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/3052-117-0x00000000773D0000-0x000000007755E000-memory.dmp
    Filesize

    1.6MB

  • memory/4072-336-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4072-272-0x0000000000424141-mapping.dmp