Analysis

  • max time kernel
    69s
  • max time network
    132s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-01-2023 20:26

General

  • Target

    0351cfa62692f8f7a02a091e23e9f6f8afa08a7c855cfb5372a9586d3ab59042.exe

  • Size

    713KB

  • MD5

    f828f5f7e49ac4b2cc79aa69666c1333

  • SHA1

    41a18640ca33d963d8af40c6df03356b712c4ab6

  • SHA256

    0351cfa62692f8f7a02a091e23e9f6f8afa08a7c855cfb5372a9586d3ab59042

  • SHA512

    2ceaf793dd03f953f9b2f8abf77631ff43a4fa1b3e4e43b5920d72db680902bcfc990970bd752e5bbeaa3e330dc7e88b495d7747270a663945f42e4219e8b843

  • SSDEEP

    12288:t/yOx9PHnolHGkNF2wFVgXziUxs+Tfc6XdZvL83ykrDlWO4rvIhzr:thRnolHGYgwF2XziUxjvt+FRD4LI1r

Malware Config

Extracted

Family

djvu

C2

http://ex3mall.com/test1/get.php

Attributes
  • extension

    .znsm

  • offline_id

    bE95c2N1x4fARf4W3qmFCjkKPwfFkQaU9NpNBMt1

  • payload_url

    http://uaery.top/dl/build2.exe

    http://ex3mall.com/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-OKSOfVy04R 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: 0623Sduef

rsa_pubkey.plain

Extracted

Family

vidar

Version

1.7

Botnet

19

C2

https://t.me/robloxblackl

https://steamcommunity.com/profiles/76561199458928097

Attributes
  • profile_id

    19

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.

  • Downloads MZ/PE file
  • Executes dropped EXE 4 IoCs
  • Checks computer location settings 2 TTPs 3 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.

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0351cfa62692f8f7a02a091e23e9f6f8afa08a7c855cfb5372a9586d3ab59042.exe
    "C:\Users\Admin\AppData\Local\Temp\0351cfa62692f8f7a02a091e23e9f6f8afa08a7c855cfb5372a9586d3ab59042.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4364
    • C:\Users\Admin\AppData\Local\Temp\0351cfa62692f8f7a02a091e23e9f6f8afa08a7c855cfb5372a9586d3ab59042.exe
      "C:\Users\Admin\AppData\Local\Temp\0351cfa62692f8f7a02a091e23e9f6f8afa08a7c855cfb5372a9586d3ab59042.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4976
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\91adb2cb-a9d1-4f25-90f0-1d6768d6038e" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:644
      • C:\Users\Admin\AppData\Local\Temp\0351cfa62692f8f7a02a091e23e9f6f8afa08a7c855cfb5372a9586d3ab59042.exe
        "C:\Users\Admin\AppData\Local\Temp\0351cfa62692f8f7a02a091e23e9f6f8afa08a7c855cfb5372a9586d3ab59042.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4580
        • C:\Users\Admin\AppData\Local\Temp\0351cfa62692f8f7a02a091e23e9f6f8afa08a7c855cfb5372a9586d3ab59042.exe
          "C:\Users\Admin\AppData\Local\Temp\0351cfa62692f8f7a02a091e23e9f6f8afa08a7c855cfb5372a9586d3ab59042.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:436
          • C:\Users\Admin\AppData\Local\e9d2cbf5-3912-4af3-9744-8f7a7727e50a\build2.exe
            "C:\Users\Admin\AppData\Local\e9d2cbf5-3912-4af3-9744-8f7a7727e50a\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:4072
            • C:\Users\Admin\AppData\Local\e9d2cbf5-3912-4af3-9744-8f7a7727e50a\build2.exe
              "C:\Users\Admin\AppData\Local\e9d2cbf5-3912-4af3-9744-8f7a7727e50a\build2.exe"
              6⤵
              • Executes dropped EXE
              • Checks computer location settings
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:736
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\e9d2cbf5-3912-4af3-9744-8f7a7727e50a\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:4288
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:3616
          • C:\Users\Admin\AppData\Local\e9d2cbf5-3912-4af3-9744-8f7a7727e50a\build3.exe
            "C:\Users\Admin\AppData\Local\e9d2cbf5-3912-4af3-9744-8f7a7727e50a\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:1568
            • C:\Windows\SysWOW64\schtasks.exe
              /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
              6⤵
              • Creates scheduled task(s)
              PID:1636
  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:3560
    • C:\Windows\SysWOW64\schtasks.exe
      /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
      2⤵
      • Creates scheduled task(s)
      PID:4300

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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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

    2KB

    MD5

    9695683c1da621b5f824afebf8ae9376

    SHA1

    73386a28a644b2797170c5ec91e521f9627d30c5

    SHA256

    8cf299113142feaa98877799637e6b49276bd535a765efd9c55dd18d4f906a66

    SHA512

    696a5c3d5ce555f37ecb179cd48c97b01c227739c3d508fd2e96218f4b143abb46231aca5d8bebfb5a0a7566701663ea678cb31bb6af8e91015591ff1b49088f

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

    Filesize

    1KB

    MD5

    4a6f81271f6207a86385151e550b3799

    SHA1

    06eae02ccf003eb62beabcd81f63b0ec258cc38b

    SHA256

    3c31821dbe81fd315aeccf8c38cf44fffb03f0f4be475519bb61024b1cd80cb3

    SHA512

    727127c9ace7558ccd7251305ecf58a7dc8476bceda7b41466f741533a2f2fc49964e03f4a4a8abc6d23cc3657113f3572b1bd4e2a8aa7580fe5f2f14ddb4d00

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

    Filesize

    488B

    MD5

    57d734960fab58806fe67ddfe40dbefa

    SHA1

    953dc0d13ff500bddd6bad5757e7bd4722170acf

    SHA256

    f384fd524103e46aefc01f50734b641c1b0e0ae1b605f3df67d33198bae87c32

    SHA512

    950b7302c5d661829ea250101cd51d60bc4ff2ac8bd7da324348eb366f057946915caf49d16e1669e0aa3431a039ee5575f9bfe8dfb60906b4fb21c2be1427fc

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

    Filesize

    482B

    MD5

    8bfa4a45a323dfe1a915737a93a9beca

    SHA1

    e5f084db659401f83408131fe88a2217397586d7

    SHA256

    a69a12f4a79cdbbd8bfd6800654769d905c81c5dcfb08075e33144ec13a1edb0

    SHA512

    94c054441e9a726498451546cbd6a5eb0631bf79c4819ccec122071074ceac3b874ddc3d288c8bcf925d4234ba0d9ec6366da7d8c8ced8c5c287ad04f62727c3

  • C:\Users\Admin\AppData\Local\91adb2cb-a9d1-4f25-90f0-1d6768d6038e\0351cfa62692f8f7a02a091e23e9f6f8afa08a7c855cfb5372a9586d3ab59042.exe

    Filesize

    713KB

    MD5

    f828f5f7e49ac4b2cc79aa69666c1333

    SHA1

    41a18640ca33d963d8af40c6df03356b712c4ab6

    SHA256

    0351cfa62692f8f7a02a091e23e9f6f8afa08a7c855cfb5372a9586d3ab59042

    SHA512

    2ceaf793dd03f953f9b2f8abf77631ff43a4fa1b3e4e43b5920d72db680902bcfc990970bd752e5bbeaa3e330dc7e88b495d7747270a663945f42e4219e8b843

  • C:\Users\Admin\AppData\Local\e9d2cbf5-3912-4af3-9744-8f7a7727e50a\build2.exe

    Filesize

    407KB

    MD5

    3b6782cde711c6e73e09611c5041060e

    SHA1

    412d9f6e64ebee4287eccff782f04943e5381d4f

    SHA256

    740912c948f5c370a23fa34da6fca7ffa1abc420edefcbe3c7a74170c9f47e8c

    SHA512

    d7883a046d9b153094f9f3e5970b78a9084de8472d219a325006a7652cdf5427641a0c10beef4aceaa4ad9d92ea1a2ccf8104588e51760200e7e85be37524c4e

  • C:\Users\Admin\AppData\Local\e9d2cbf5-3912-4af3-9744-8f7a7727e50a\build2.exe

    Filesize

    407KB

    MD5

    3b6782cde711c6e73e09611c5041060e

    SHA1

    412d9f6e64ebee4287eccff782f04943e5381d4f

    SHA256

    740912c948f5c370a23fa34da6fca7ffa1abc420edefcbe3c7a74170c9f47e8c

    SHA512

    d7883a046d9b153094f9f3e5970b78a9084de8472d219a325006a7652cdf5427641a0c10beef4aceaa4ad9d92ea1a2ccf8104588e51760200e7e85be37524c4e

  • C:\Users\Admin\AppData\Local\e9d2cbf5-3912-4af3-9744-8f7a7727e50a\build2.exe

    Filesize

    407KB

    MD5

    3b6782cde711c6e73e09611c5041060e

    SHA1

    412d9f6e64ebee4287eccff782f04943e5381d4f

    SHA256

    740912c948f5c370a23fa34da6fca7ffa1abc420edefcbe3c7a74170c9f47e8c

    SHA512

    d7883a046d9b153094f9f3e5970b78a9084de8472d219a325006a7652cdf5427641a0c10beef4aceaa4ad9d92ea1a2ccf8104588e51760200e7e85be37524c4e

  • C:\Users\Admin\AppData\Local\e9d2cbf5-3912-4af3-9744-8f7a7727e50a\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\e9d2cbf5-3912-4af3-9744-8f7a7727e50a\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • memory/436-146-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/436-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/436-168-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/436-152-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/736-163-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/736-190-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/736-192-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/736-169-0x0000000060900000-0x0000000060992000-memory.dmp

    Filesize

    584KB

  • memory/736-167-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/736-166-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/736-161-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/4072-165-0x0000000000610000-0x000000000065C000-memory.dmp

    Filesize

    304KB

  • memory/4072-164-0x00000000006C2000-0x00000000006EF000-memory.dmp

    Filesize

    180KB

  • memory/4364-135-0x000000000216C000-0x00000000021FE000-memory.dmp

    Filesize

    584KB

  • memory/4364-136-0x0000000002200000-0x000000000231B000-memory.dmp

    Filesize

    1.1MB

  • memory/4580-143-0x0000000002125000-0x00000000021B7000-memory.dmp

    Filesize

    584KB

  • memory/4976-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4976-142-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4976-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4976-134-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4976-133-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB