Analysis

  • max time kernel
    146s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-03-2023 19:52

General

  • Target

    2a7c59f2cd8a01e1bdefe2d686faae3c14650bfa052baf7c4a8b371d19addc6f.exe

  • Size

    687KB

  • MD5

    7091ade9c4080145fa290120dd7d239e

  • SHA1

    e3795d9786ec61958d953c12f07ae748d00d5291

  • SHA256

    2a7c59f2cd8a01e1bdefe2d686faae3c14650bfa052baf7c4a8b371d19addc6f

  • SHA512

    b55e7feff30846eba433d700c9f277842a5faa362d57c65aeaa1a94e17368b5ec40349d4a9993b9c6b64fab0216d749000c400798778475416dd971dc9c6e1af

  • SSDEEP

    12288:r86epCpTBvLCLjd+yUMwaut8Q+hpT7SmRCORGysKbxY6GsM:S+zCLjdrUHt8NhpfSmRt8YbxYHs

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .dazx

  • offline_id

    8EM6M9LqEzIk18qaQ87WiPQ1u84RRdej5V1ovht1

  • payload_url

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

    http://zexeq.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-vbVkogQdu2 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: 0666JOsie

rsa_pubkey.plain

Extracted

Family

vidar

C2

https://steamcommunity.com/profiles/76561199472266392

Extracted

Family

vidar

Version

�5�5

C2

https://steamcommunity.com/profiles/76561199472266392

Signatures

  • Detected Djvu ransomware 16 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
  • Checks computer location settings 2 TTPs 3 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 4 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.

  • 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\2a7c59f2cd8a01e1bdefe2d686faae3c14650bfa052baf7c4a8b371d19addc6f.exe
    "C:\Users\Admin\AppData\Local\Temp\2a7c59f2cd8a01e1bdefe2d686faae3c14650bfa052baf7c4a8b371d19addc6f.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:5048
    • C:\Users\Admin\AppData\Local\Temp\2a7c59f2cd8a01e1bdefe2d686faae3c14650bfa052baf7c4a8b371d19addc6f.exe
      "C:\Users\Admin\AppData\Local\Temp\2a7c59f2cd8a01e1bdefe2d686faae3c14650bfa052baf7c4a8b371d19addc6f.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4260
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\6373af1e-f51f-42ce-a236-3f0a8a8b6474" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:652
      • C:\Users\Admin\AppData\Local\Temp\2a7c59f2cd8a01e1bdefe2d686faae3c14650bfa052baf7c4a8b371d19addc6f.exe
        "C:\Users\Admin\AppData\Local\Temp\2a7c59f2cd8a01e1bdefe2d686faae3c14650bfa052baf7c4a8b371d19addc6f.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2928
        • C:\Users\Admin\AppData\Local\Temp\2a7c59f2cd8a01e1bdefe2d686faae3c14650bfa052baf7c4a8b371d19addc6f.exe
          "C:\Users\Admin\AppData\Local\Temp\2a7c59f2cd8a01e1bdefe2d686faae3c14650bfa052baf7c4a8b371d19addc6f.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4552
          • C:\Users\Admin\AppData\Local\5f15a617-d944-4c22-a941-960165db1f15\build2.exe
            "C:\Users\Admin\AppData\Local\5f15a617-d944-4c22-a941-960165db1f15\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1828
            • C:\Users\Admin\AppData\Local\5f15a617-d944-4c22-a941-960165db1f15\build2.exe
              "C:\Users\Admin\AppData\Local\5f15a617-d944-4c22-a941-960165db1f15\build2.exe"
              6⤵
              • Checks computer location settings
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:552
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\5f15a617-d944-4c22-a941-960165db1f15\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:3968
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:436
          • C:\Users\Admin\AppData\Local\5f15a617-d944-4c22-a941-960165db1f15\build3.exe
            "C:\Users\Admin\AppData\Local\5f15a617-d944-4c22-a941-960165db1f15\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:1152
            • 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:3648
  • 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:4952
    • 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:3892

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\ProgramData\mozglue.dll

    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • C:\ProgramData\nss3.dll

    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

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

    Filesize

    2KB

    MD5

    84770e5e2da7dbc35f74f1301910fea1

    SHA1

    bd6156f63c93c2bc668dbd796d27474700cbff84

    SHA256

    97a616430f4f8b8a76004f3ffab182f6a01870267c53387960f71f56c3dae1c5

    SHA512

    6241fec66ad5219fa31ad47fdd93dea2ef079cfd600d3ec1ca48fe64d028d76a82984113a5052b74de8d678d183e2bafb965f3c6111f3cdf139239b07dfee941

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

    Filesize

    1KB

    MD5

    46695bc8561a32e1833a6d99a77181a0

    SHA1

    b3c30e212f13fe612567d1a0d590ea400225bde2

    SHA256

    8acf929c15a9d787e72809586a1c01d53cd344207ed8f5b5d2f325f4a25f708e

    SHA512

    59a20f6594e628fb465ca887c4987656757d6b479c9fc72995c1bbe4c7ab89a8e60969aa68d7472b8a06bbfa99c01fdd0e87608fef95133463034bc21744e304

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

    Filesize

    488B

    MD5

    de4fc49a1441ac94674d3e23ba4e12b8

    SHA1

    03a03feea6b1ebc0c149fcca55f17c766a160c44

    SHA256

    43ea823d78c9b695036be66e38b529e44055971ba1bbe781b70260301e84b7ee

    SHA512

    5f0d1e4e3542e1258fd078fb39e52d34be90a5dc0d713a8312624ccb5e8d7779e66ae7a086e938504ac24dfc1e85326118a9771eb5d4c79c3982b4a5bff22513

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

    Filesize

    482B

    MD5

    32e4fa3c93a732d95f91e02594409659

    SHA1

    81f394db46a463fc19f72f67abac2ef7e851be86

    SHA256

    fbf0a8a85b7daf77043bcc25867c66b888ebd3e91fa09c028c39d967e8abbc36

    SHA512

    33b5a769188de2e78a79b770c58ddcd9e6285b95f36323823967be94427924b5df511d18385d415084b49ca1cdd73820d9f6245f2ac307f62141f8d0a7a2bd51

  • C:\Users\Admin\AppData\Local\5f15a617-d944-4c22-a941-960165db1f15\build2.exe

    Filesize

    299KB

    MD5

    6b343cd7dea3ae28d0819bc55a2f86fe

    SHA1

    cedd49849a5dd678d0a55da607e9b28a9680073c

    SHA256

    4240b655ed2af5ae8873b49e2e2d204383b2fd675c21f02527a9a4d9b719cd49

    SHA512

    7c28ba260fe53879b6e8f69d65c4263d454d75033889162d000c421695e634aeb13f4d4c2b999934f8eb2e58d62913764f1590689925e120600155d8390d0a48

  • C:\Users\Admin\AppData\Local\5f15a617-d944-4c22-a941-960165db1f15\build2.exe

    Filesize

    299KB

    MD5

    6b343cd7dea3ae28d0819bc55a2f86fe

    SHA1

    cedd49849a5dd678d0a55da607e9b28a9680073c

    SHA256

    4240b655ed2af5ae8873b49e2e2d204383b2fd675c21f02527a9a4d9b719cd49

    SHA512

    7c28ba260fe53879b6e8f69d65c4263d454d75033889162d000c421695e634aeb13f4d4c2b999934f8eb2e58d62913764f1590689925e120600155d8390d0a48

  • C:\Users\Admin\AppData\Local\5f15a617-d944-4c22-a941-960165db1f15\build2.exe

    Filesize

    299KB

    MD5

    6b343cd7dea3ae28d0819bc55a2f86fe

    SHA1

    cedd49849a5dd678d0a55da607e9b28a9680073c

    SHA256

    4240b655ed2af5ae8873b49e2e2d204383b2fd675c21f02527a9a4d9b719cd49

    SHA512

    7c28ba260fe53879b6e8f69d65c4263d454d75033889162d000c421695e634aeb13f4d4c2b999934f8eb2e58d62913764f1590689925e120600155d8390d0a48

  • C:\Users\Admin\AppData\Local\5f15a617-d944-4c22-a941-960165db1f15\build2.exe

    Filesize

    299KB

    MD5

    6b343cd7dea3ae28d0819bc55a2f86fe

    SHA1

    cedd49849a5dd678d0a55da607e9b28a9680073c

    SHA256

    4240b655ed2af5ae8873b49e2e2d204383b2fd675c21f02527a9a4d9b719cd49

    SHA512

    7c28ba260fe53879b6e8f69d65c4263d454d75033889162d000c421695e634aeb13f4d4c2b999934f8eb2e58d62913764f1590689925e120600155d8390d0a48

  • C:\Users\Admin\AppData\Local\5f15a617-d944-4c22-a941-960165db1f15\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\5f15a617-d944-4c22-a941-960165db1f15\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\5f15a617-d944-4c22-a941-960165db1f15\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\6373af1e-f51f-42ce-a236-3f0a8a8b6474\2a7c59f2cd8a01e1bdefe2d686faae3c14650bfa052baf7c4a8b371d19addc6f.exe

    Filesize

    687KB

    MD5

    7091ade9c4080145fa290120dd7d239e

    SHA1

    e3795d9786ec61958d953c12f07ae748d00d5291

    SHA256

    2a7c59f2cd8a01e1bdefe2d686faae3c14650bfa052baf7c4a8b371d19addc6f

    SHA512

    b55e7feff30846eba433d700c9f277842a5faa362d57c65aeaa1a94e17368b5ec40349d4a9993b9c6b64fab0216d749000c400798778475416dd971dc9c6e1af

  • 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/552-276-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/552-275-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/552-273-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/552-205-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/552-183-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/552-180-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/552-178-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/552-181-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/1828-182-0x0000000000630000-0x0000000000687000-memory.dmp

    Filesize

    348KB

  • memory/4260-135-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4260-134-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4260-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4260-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4260-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4552-192-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4552-177-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4552-173-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4552-157-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4552-175-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4552-151-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4552-152-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4552-278-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4552-159-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4552-158-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5048-136-0x0000000002360000-0x000000000247B000-memory.dmp

    Filesize

    1.1MB