Analysis

  • max time kernel
    141s
  • max time network
    145s
  • platform
    windows10_x64
  • resource
    win10-20220414-en
  • submitted
    17-05-2022 08:41

General

  • Target

    2a93d9938c29280d9ea16e36fbdd40b1f30c035ccbf98d4e288c339ae0239b04.exe

  • Size

    848KB

  • MD5

    6b65903e02633aa0d071e8408719386d

  • SHA1

    354e4d5130e81b4377b443ec8b056e4cdd228c9b

  • SHA256

    2a93d9938c29280d9ea16e36fbdd40b1f30c035ccbf98d4e288c339ae0239b04

  • SHA512

    2d5b53edf7b86a59160aa4c4d6d8e1371f531880ad99b8f89ab64f089fac293174ad50c876ad8f52f70a202bce7e7867142d07190fdf0693ef8d0b2997896c70

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 10 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
  • 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\2a93d9938c29280d9ea16e36fbdd40b1f30c035ccbf98d4e288c339ae0239b04.exe
    "C:\Users\Admin\AppData\Local\Temp\2a93d9938c29280d9ea16e36fbdd40b1f30c035ccbf98d4e288c339ae0239b04.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1492
    • C:\Users\Admin\AppData\Local\Temp\2a93d9938c29280d9ea16e36fbdd40b1f30c035ccbf98d4e288c339ae0239b04.exe
      "C:\Users\Admin\AppData\Local\Temp\2a93d9938c29280d9ea16e36fbdd40b1f30c035ccbf98d4e288c339ae0239b04.exe"
      2⤵
      • Adds Run key to start application
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3908
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\9775548b-8e1d-4ac8-b9c4-43f352795080" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:3960
      • C:\Users\Admin\AppData\Local\Temp\2a93d9938c29280d9ea16e36fbdd40b1f30c035ccbf98d4e288c339ae0239b04.exe
        "C:\Users\Admin\AppData\Local\Temp\2a93d9938c29280d9ea16e36fbdd40b1f30c035ccbf98d4e288c339ae0239b04.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1480
        • C:\Users\Admin\AppData\Local\Temp\2a93d9938c29280d9ea16e36fbdd40b1f30c035ccbf98d4e288c339ae0239b04.exe
          "C:\Users\Admin\AppData\Local\Temp\2a93d9938c29280d9ea16e36fbdd40b1f30c035ccbf98d4e288c339ae0239b04.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1920
          • C:\Users\Admin\AppData\Local\4bd3ab23-efe7-4d55-85b4-8f3166ef4b32\build2.exe
            "C:\Users\Admin\AppData\Local\4bd3ab23-efe7-4d55-85b4-8f3166ef4b32\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2792
            • C:\Users\Admin\AppData\Local\4bd3ab23-efe7-4d55-85b4-8f3166ef4b32\build2.exe
              "C:\Users\Admin\AppData\Local\4bd3ab23-efe7-4d55-85b4-8f3166ef4b32\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:2380

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

    41dc2d71b674f7244f3b612f93be7f62

    SHA1

    5949520be3298d056410e5cbca2e523680e6f71e

    SHA256

    2aa91b0505adb45596b79f9eb358cea0104f508aa5eb3b25f80a5a99b187551e

    SHA512

    3b64a43cd37f3e465aac7bba5962bd9169df47b5f4e6132199b358a87cf1e6b7cab94add0302db010813da22b04bb6c74868088f3e88fdc29d313acf8eb43b7d

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

    396B

    MD5

    c80aea60c655f25e16f80303aa900dff

    SHA1

    9e4cec7e467610a68053592bc6d7cf014d57c175

    SHA256

    1845435ded44c54bc726ef99a69f0bff2a505ea9c45cad83011d3a3cbfe65251

    SHA512

    33c91122742e52ab89695a2495850130adccce781905d2e3afc82a11705c129919fe33d0894a889b12729a372f39d901c42fc752e43b5ed351e3d2e558e989a8

  • C:\Users\Admin\AppData\Local\4bd3ab23-efe7-4d55-85b4-8f3166ef4b32\build2.exe
    Filesize

    367KB

    MD5

    3107999f9600f5f2bc88e17282da2773

    SHA1

    8862f9551fdb7dc30e135c556751b973f441e7b4

    SHA256

    aacab9cbbf292403a63bcfd1f6f0a9e534ac39aab406f2c9d7aa98b719f3801f

    SHA512

    50c66565fc457b848014eaf70b3f7cc408e8a818bd29c80daf53597a44c182d26649c249a6e3fe7e6516fc7ff7e7026f3aff4b25ee48645789fa6cd3d3e2f338

  • C:\Users\Admin\AppData\Local\4bd3ab23-efe7-4d55-85b4-8f3166ef4b32\build2.exe
    Filesize

    367KB

    MD5

    3107999f9600f5f2bc88e17282da2773

    SHA1

    8862f9551fdb7dc30e135c556751b973f441e7b4

    SHA256

    aacab9cbbf292403a63bcfd1f6f0a9e534ac39aab406f2c9d7aa98b719f3801f

    SHA512

    50c66565fc457b848014eaf70b3f7cc408e8a818bd29c80daf53597a44c182d26649c249a6e3fe7e6516fc7ff7e7026f3aff4b25ee48645789fa6cd3d3e2f338

  • C:\Users\Admin\AppData\Local\4bd3ab23-efe7-4d55-85b4-8f3166ef4b32\build2.exe
    Filesize

    367KB

    MD5

    3107999f9600f5f2bc88e17282da2773

    SHA1

    8862f9551fdb7dc30e135c556751b973f441e7b4

    SHA256

    aacab9cbbf292403a63bcfd1f6f0a9e534ac39aab406f2c9d7aa98b719f3801f

    SHA512

    50c66565fc457b848014eaf70b3f7cc408e8a818bd29c80daf53597a44c182d26649c249a6e3fe7e6516fc7ff7e7026f3aff4b25ee48645789fa6cd3d3e2f338

  • C:\Users\Admin\AppData\Local\9775548b-8e1d-4ac8-b9c4-43f352795080\2a93d9938c29280d9ea16e36fbdd40b1f30c035ccbf98d4e288c339ae0239b04.exe
    Filesize

    848KB

    MD5

    6b65903e02633aa0d071e8408719386d

    SHA1

    354e4d5130e81b4377b443ec8b056e4cdd228c9b

    SHA256

    2a93d9938c29280d9ea16e36fbdd40b1f30c035ccbf98d4e288c339ae0239b04

    SHA512

    2d5b53edf7b86a59160aa4c4d6d8e1371f531880ad99b8f89ab64f089fac293174ad50c876ad8f52f70a202bce7e7867142d07190fdf0693ef8d0b2997896c70

  • \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/1480-128-0x0000000000000000-mapping.dmp
  • memory/1480-129-0x00000000006B0000-0x0000000000741000-memory.dmp
    Filesize

    580KB

  • memory/1480-133-0x00000000005E0000-0x000000000072A000-memory.dmp
    Filesize

    1.3MB

  • memory/1492-123-0x0000000002340000-0x000000000245B000-memory.dmp
    Filesize

    1.1MB

  • memory/1920-139-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1920-134-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1920-131-0x0000000000424141-mapping.dmp
  • memory/1920-132-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2380-149-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/2380-144-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/2380-147-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/2380-145-0x000000000042103C-mapping.dmp
  • memory/2380-148-0x0000000000400000-0x000000000044C000-memory.dmp
    Filesize

    304KB

  • memory/2380-150-0x0000000060900000-0x0000000060992000-memory.dmp
    Filesize

    584KB

  • memory/2792-140-0x0000000000000000-mapping.dmp
  • memory/3908-120-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/3908-121-0x0000000000424141-mapping.dmp
  • memory/3908-124-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/3908-125-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/3908-122-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/3960-126-0x0000000000000000-mapping.dmp