Analysis

  • max time kernel
    97s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 19:17

General

  • Target

    fd65eb01de4be9a408a2dc85571c4b23b19fccd9e4caba570cdbcb3ff6069273.exe

  • Size

    800KB

  • MD5

    a3991830730cd068be13d85b754bf95d

  • SHA1

    4884610278bc682c1bfc4edc34cd5af18db3a9a1

  • SHA256

    fd65eb01de4be9a408a2dc85571c4b23b19fccd9e4caba570cdbcb3ff6069273

  • SHA512

    83f6cea5157dd136d73065b5e41dfd610f7e31f7464db9b968a74933c010e24737b5c93ee5d0d99c119fa2e2197cf24b2f4f193e44fe40667d3de611d8502908

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .dfwe

  • 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: 0480JIjdm

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\fd65eb01de4be9a408a2dc85571c4b23b19fccd9e4caba570cdbcb3ff6069273.exe
    "C:\Users\Admin\AppData\Local\Temp\fd65eb01de4be9a408a2dc85571c4b23b19fccd9e4caba570cdbcb3ff6069273.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4728
    • C:\Users\Admin\AppData\Local\Temp\fd65eb01de4be9a408a2dc85571c4b23b19fccd9e4caba570cdbcb3ff6069273.exe
      "C:\Users\Admin\AppData\Local\Temp\fd65eb01de4be9a408a2dc85571c4b23b19fccd9e4caba570cdbcb3ff6069273.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4680
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\ec452a20-fd01-4f6c-8a10-c11e3648bf1c" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:3964
      • C:\Users\Admin\AppData\Local\Temp\fd65eb01de4be9a408a2dc85571c4b23b19fccd9e4caba570cdbcb3ff6069273.exe
        "C:\Users\Admin\AppData\Local\Temp\fd65eb01de4be9a408a2dc85571c4b23b19fccd9e4caba570cdbcb3ff6069273.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:3352
        • C:\Users\Admin\AppData\Local\Temp\fd65eb01de4be9a408a2dc85571c4b23b19fccd9e4caba570cdbcb3ff6069273.exe
          "C:\Users\Admin\AppData\Local\Temp\fd65eb01de4be9a408a2dc85571c4b23b19fccd9e4caba570cdbcb3ff6069273.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1428
          • C:\Users\Admin\AppData\Local\3808c8a9-4074-462a-80b7-fa4b35575cf3\build2.exe
            "C:\Users\Admin\AppData\Local\3808c8a9-4074-462a-80b7-fa4b35575cf3\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2532
            • C:\Users\Admin\AppData\Local\3808c8a9-4074-462a-80b7-fa4b35575cf3\build2.exe
              "C:\Users\Admin\AppData\Local\3808c8a9-4074-462a-80b7-fa4b35575cf3\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:4260

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

    93995ad095112907cfc088998c161574

    SHA1

    518c7127e11809bb74ff0f68ea7e86ea5aebc798

    SHA256

    fd16d238bcac3441688e7ca940c27bb02df8f0bf43b26d8e551414a18748c1cc

    SHA512

    c2a3153c65f0acbc821bf663b38591821402d9a00680e2e22f410bf1735752194c08b96f77b7e6712082584a8b6605f7ab9552ad2f6c193fbd13c90bb60436e9

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

    471B

    MD5

    c04f441d0220712231531a90823834db

    SHA1

    68dd18f1e0c51f1fdc4621394091a2dad08e4a08

    SHA256

    055641d3987ae98e2dd627d3214ea8084ae773a3df9592191b86977c752a29e7

    SHA512

    3156cf79585a45d919d4b27da4fe860f06e3206961fe1d20347ad74ef17de81c47857f35acd5cda3fae5ade28ab9747529ea3e8e79ca80aaf98e1f0e852bed53

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

    402B

    MD5

    70c54aac1d5df152c696969cca4cac54

    SHA1

    edd229745b108be93ba9290ee680bb103646c5c2

    SHA256

    459e00f8e838f8bdecc2f34d4c2f77989da9bd826e546906c0dc23380c89b63d

    SHA512

    df232658f83d259eaaf1b9a28623563fc647ca799c4243b1d33af3c9c215ccf8e90b402c2e972599b979f82787afd4005fa6ec4f872b62305827ac20cf8158ff

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

    396B

    MD5

    b40dff0dbce73cde413c3810da5e96ff

    SHA1

    f61aad062529e35402920df0ead4ee4382ff7e49

    SHA256

    64b156ee808d8ae6cba29a2a3e19dc2384ad8c8d3a325f8a5022819218e37637

    SHA512

    66c529dd5885a7b27d7eb9ede2368d6e9fcfafe49e4225905cf6bf5aa0a86cdbaac27d797b2808f1f919d759e628ba85aa50360cf54be3c22cd0d28ab97809ac

  • C:\Users\Admin\AppData\Local\3808c8a9-4074-462a-80b7-fa4b35575cf3\build2.exe
    Filesize

    367KB

    MD5

    3107999f9600f5f2bc88e17282da2773

    SHA1

    8862f9551fdb7dc30e135c556751b973f441e7b4

    SHA256

    aacab9cbbf292403a63bcfd1f6f0a9e534ac39aab406f2c9d7aa98b719f3801f

    SHA512

    50c66565fc457b848014eaf70b3f7cc408e8a818bd29c80daf53597a44c182d26649c249a6e3fe7e6516fc7ff7e7026f3aff4b25ee48645789fa6cd3d3e2f338

  • C:\Users\Admin\AppData\Local\3808c8a9-4074-462a-80b7-fa4b35575cf3\build2.exe
    Filesize

    367KB

    MD5

    3107999f9600f5f2bc88e17282da2773

    SHA1

    8862f9551fdb7dc30e135c556751b973f441e7b4

    SHA256

    aacab9cbbf292403a63bcfd1f6f0a9e534ac39aab406f2c9d7aa98b719f3801f

    SHA512

    50c66565fc457b848014eaf70b3f7cc408e8a818bd29c80daf53597a44c182d26649c249a6e3fe7e6516fc7ff7e7026f3aff4b25ee48645789fa6cd3d3e2f338

  • C:\Users\Admin\AppData\Local\3808c8a9-4074-462a-80b7-fa4b35575cf3\build2.exe
    Filesize

    367KB

    MD5

    3107999f9600f5f2bc88e17282da2773

    SHA1

    8862f9551fdb7dc30e135c556751b973f441e7b4

    SHA256

    aacab9cbbf292403a63bcfd1f6f0a9e534ac39aab406f2c9d7aa98b719f3801f

    SHA512

    50c66565fc457b848014eaf70b3f7cc408e8a818bd29c80daf53597a44c182d26649c249a6e3fe7e6516fc7ff7e7026f3aff4b25ee48645789fa6cd3d3e2f338

  • C:\Users\Admin\AppData\Local\ec452a20-fd01-4f6c-8a10-c11e3648bf1c\fd65eb01de4be9a408a2dc85571c4b23b19fccd9e4caba570cdbcb3ff6069273.exe
    Filesize

    800KB

    MD5

    a3991830730cd068be13d85b754bf95d

    SHA1

    4884610278bc682c1bfc4edc34cd5af18db3a9a1

    SHA256

    fd65eb01de4be9a408a2dc85571c4b23b19fccd9e4caba570cdbcb3ff6069273

    SHA512

    83f6cea5157dd136d73065b5e41dfd610f7e31f7464db9b968a74933c010e24737b5c93ee5d0d99c119fa2e2197cf24b2f4f193e44fe40667d3de611d8502908

  • memory/1428-140-0x0000000000000000-mapping.dmp
  • memory/1428-142-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1428-144-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1428-145-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2532-158-0x0000000000810000-0x0000000000859000-memory.dmp
    Filesize

    292KB

  • memory/2532-157-0x00000000004D6000-0x0000000000501000-memory.dmp
    Filesize

    172KB

  • memory/2532-150-0x0000000000000000-mapping.dmp
  • memory/3352-143-0x00000000047FD000-0x000000000488F000-memory.dmp
    Filesize

    584KB

  • memory/3352-139-0x0000000000000000-mapping.dmp
  • memory/3964-137-0x0000000000000000-mapping.dmp
  • memory/4260-160-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/4260-159-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/4260-153-0x0000000000000000-mapping.dmp
  • memory/4260-154-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/4260-156-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/4260-161-0x0000000060900000-0x0000000060992000-memory.dmp
    Filesize

    584KB

  • memory/4680-135-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4680-132-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4680-136-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4680-130-0x0000000000000000-mapping.dmp
  • memory/4680-131-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4728-134-0x0000000004A00000-0x0000000004B1B000-memory.dmp
    Filesize

    1.1MB

  • memory/4728-133-0x0000000004941000-0x00000000049D3000-memory.dmp
    Filesize

    584KB