Analysis

  • max time kernel
    295s
  • max time network
    256s
  • platform
    windows10-1703_x64
  • resource
    win10-20230703-en
  • resource tags

    arch:x64arch:x86image:win10-20230703-enlocale:en-usos:windows10-1703-x64system
  • submitted
    22/07/2023, 22:14

General

  • Target

    b960c1dd42ab2d151794dbef126b6eaef1172ba04d108f274e2212d1ee19cdb3.exe

  • Size

    762KB

  • MD5

    d7aec2c34c9f4a3653f8f3286daf913f

  • SHA1

    44e3ede5b2b9f21d17b55106ec5bb5d1239b845a

  • SHA256

    b960c1dd42ab2d151794dbef126b6eaef1172ba04d108f274e2212d1ee19cdb3

  • SHA512

    112b7b9297eb6c21917c4e2bec2c1ad29db675a10e22a69127f9d93a9968293b7e707d599141da039b90817fe6e58ab221e5bc2fb948438f0e1bade74033de9a

  • SSDEEP

    12288:+tHQYTqTaKT7UOCmmvHzmw0l3xEv2xSlHgzNoWkJjjE5QIcGPKH5gGRMi+OlQAzR:+tRqe+7UOClTmflSv2XKWkJjjTIEmGiY

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .kizu

  • offline_id

    NGHsYuVPwlgoEkG3ENtueNmXtFHSWod7fYayU9t1

  • payload_url

    http://colisumy.com/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-lOjoPPuBzw 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: 0747JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

4.8

Botnet

https://t.me/sundayevent

C2

https://t.me/sundayevent

https://steamcommunity.com/profiles/76561198982268531

Attributes
  • profile_id_v2

    https://t.me/sundayevent

  • user_agent

    Mozilla/5.0 (X11; Linux 3.5.4-1-ARCH i686; es) KHTML/4.9.1 (like Gecko) Konqueror/4.9

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
  • 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
  • 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).

  • 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 8 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b960c1dd42ab2d151794dbef126b6eaef1172ba04d108f274e2212d1ee19cdb3.exe
    "C:\Users\Admin\AppData\Local\Temp\b960c1dd42ab2d151794dbef126b6eaef1172ba04d108f274e2212d1ee19cdb3.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3532
    • C:\Users\Admin\AppData\Local\Temp\b960c1dd42ab2d151794dbef126b6eaef1172ba04d108f274e2212d1ee19cdb3.exe
      "C:\Users\Admin\AppData\Local\Temp\b960c1dd42ab2d151794dbef126b6eaef1172ba04d108f274e2212d1ee19cdb3.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2708
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\30331c13-b332-4410-9396-e884d99bb76d" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4116
      • C:\Users\Admin\AppData\Local\Temp\b960c1dd42ab2d151794dbef126b6eaef1172ba04d108f274e2212d1ee19cdb3.exe
        "C:\Users\Admin\AppData\Local\Temp\b960c1dd42ab2d151794dbef126b6eaef1172ba04d108f274e2212d1ee19cdb3.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:656
        • C:\Users\Admin\AppData\Local\Temp\b960c1dd42ab2d151794dbef126b6eaef1172ba04d108f274e2212d1ee19cdb3.exe
          "C:\Users\Admin\AppData\Local\Temp\b960c1dd42ab2d151794dbef126b6eaef1172ba04d108f274e2212d1ee19cdb3.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4440
          • C:\Users\Admin\AppData\Local\49d1614f-f2cf-42b4-abf6-4fe9b921652f\build2.exe
            "C:\Users\Admin\AppData\Local\49d1614f-f2cf-42b4-abf6-4fe9b921652f\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:4156
            • C:\Users\Admin\AppData\Local\49d1614f-f2cf-42b4-abf6-4fe9b921652f\build2.exe
              "C:\Users\Admin\AppData\Local\49d1614f-f2cf-42b4-abf6-4fe9b921652f\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:4804
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\49d1614f-f2cf-42b4-abf6-4fe9b921652f\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:2460
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:2540
          • C:\Users\Admin\AppData\Local\49d1614f-f2cf-42b4-abf6-4fe9b921652f\build3.exe
            "C:\Users\Admin\AppData\Local\49d1614f-f2cf-42b4-abf6-4fe9b921652f\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:3356
            • 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:4880
  • 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:4924
    • 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:4980

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    2KB

    MD5

    1ebe29638ced3f7ce8f725b6b7ff46f8

    SHA1

    b4ebbbabed6499321a14b3c4a4a74adcce55135f

    SHA256

    d032207b8a1c95e10ebcab100057c875d1f389bdafe042b7a250eb1c5cfdfef1

    SHA512

    58362c445b1344418b72ed764a6cb5838acbc1a3fe44fa6d458741daa6ba0303f280ccda11fba9c2dba10f9013d939aedbab8ec6123e97ce22a243e1dc1f985e

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

    Filesize

    1KB

    MD5

    c01fcb0db5aded4a825c1d7f97a35e1a

    SHA1

    5a75b3fbfd39566b06363f68a98ea146941f262d

    SHA256

    ada788b4cbd81874fb4feaac47fb8d0a31871fde641e9dcd45ee615204f21b46

    SHA512

    88e01d9238db41d9d6bdebe56f43a3c7167c3765e3d00945660ab9b3cb0277337271117ece43d491dfc86dc99afcb0caae80148d9143c95b55483b27c86a67f9

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

    Filesize

    488B

    MD5

    32b0659e4f659a7addb21126d3665a6a

    SHA1

    709ce304926af6c60c15ca1042eda19699144695

    SHA256

    c48b3e8cdc7a07a878897dc06c9daa6aa0711514e03cc6c7612da841ce58dac5

    SHA512

    a97d3094bb18ca3fa9690ffe7633914b1a15d1c28345c2238c290a3aaf3a1276854cd633d7625a8154b39300c225f8864818fc30bde44c204e6624bcd7ca1371

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

    Filesize

    482B

    MD5

    e114aa0081bf74fa7dc0bc5431bd87f9

    SHA1

    092e0be1e6b12fe16ce960afc72493cf67579ae0

    SHA256

    e71c77885e086e24e7754e032b4781d65f79cc8b04e59f6d450b400b5c420597

    SHA512

    942ba24e4ac7f38d889101769c5899e85533814f9cf12a6fbd48237ae0dd0f381fceb15dd94debf482ca0c6c7a675ae8f82e19ace86c59e53db049143adad8db

  • C:\Users\Admin\AppData\Local\30331c13-b332-4410-9396-e884d99bb76d\b960c1dd42ab2d151794dbef126b6eaef1172ba04d108f274e2212d1ee19cdb3.exe

    Filesize

    762KB

    MD5

    d7aec2c34c9f4a3653f8f3286daf913f

    SHA1

    44e3ede5b2b9f21d17b55106ec5bb5d1239b845a

    SHA256

    b960c1dd42ab2d151794dbef126b6eaef1172ba04d108f274e2212d1ee19cdb3

    SHA512

    112b7b9297eb6c21917c4e2bec2c1ad29db675a10e22a69127f9d93a9968293b7e707d599141da039b90817fe6e58ab221e5bc2fb948438f0e1bade74033de9a

  • C:\Users\Admin\AppData\Local\49d1614f-f2cf-42b4-abf6-4fe9b921652f\build2.exe

    Filesize

    524KB

    MD5

    5c08a40f82908735b187705b49de1fc3

    SHA1

    6e108f3f6611f46941869d7fcbe02c47219c0523

    SHA256

    7539d1cff13c822fbffc73cb9416dd8ae40d79f59b03b1e77b0909e182b6bd2b

    SHA512

    76d06c1686e1ec9bec07188769e3a851b98f042e962eee74bd195e156d15fd9ebc4997b10af092561178ef3918e86dd620d7070934db7b1f5a5449c19cfbe1fd

  • C:\Users\Admin\AppData\Local\49d1614f-f2cf-42b4-abf6-4fe9b921652f\build2.exe

    Filesize

    524KB

    MD5

    5c08a40f82908735b187705b49de1fc3

    SHA1

    6e108f3f6611f46941869d7fcbe02c47219c0523

    SHA256

    7539d1cff13c822fbffc73cb9416dd8ae40d79f59b03b1e77b0909e182b6bd2b

    SHA512

    76d06c1686e1ec9bec07188769e3a851b98f042e962eee74bd195e156d15fd9ebc4997b10af092561178ef3918e86dd620d7070934db7b1f5a5449c19cfbe1fd

  • C:\Users\Admin\AppData\Local\49d1614f-f2cf-42b4-abf6-4fe9b921652f\build2.exe

    Filesize

    524KB

    MD5

    5c08a40f82908735b187705b49de1fc3

    SHA1

    6e108f3f6611f46941869d7fcbe02c47219c0523

    SHA256

    7539d1cff13c822fbffc73cb9416dd8ae40d79f59b03b1e77b0909e182b6bd2b

    SHA512

    76d06c1686e1ec9bec07188769e3a851b98f042e962eee74bd195e156d15fd9ebc4997b10af092561178ef3918e86dd620d7070934db7b1f5a5449c19cfbe1fd

  • C:\Users\Admin\AppData\Local\49d1614f-f2cf-42b4-abf6-4fe9b921652f\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\49d1614f-f2cf-42b4-abf6-4fe9b921652f\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

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

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • \ProgramData\mozglue.dll

    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • \ProgramData\nss3.dll

    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • memory/656-144-0x0000000004130000-0x00000000041C3000-memory.dmp

    Filesize

    588KB

  • memory/2708-126-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2708-125-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2708-128-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2708-127-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2708-141-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3532-124-0x0000000004280000-0x000000000439B000-memory.dmp

    Filesize

    1.1MB

  • memory/3532-123-0x00000000041E0000-0x000000000427C000-memory.dmp

    Filesize

    624KB

  • memory/4156-183-0x0000000000860000-0x0000000000960000-memory.dmp

    Filesize

    1024KB

  • memory/4156-184-0x0000000002230000-0x00000000022C5000-memory.dmp

    Filesize

    596KB

  • memory/4440-162-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4440-155-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4440-164-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4440-163-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4440-160-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4440-146-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4440-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4440-156-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4440-148-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4440-178-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4804-189-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/4804-200-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/4804-188-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/4804-238-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/4804-239-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/4804-240-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/4804-187-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB

  • memory/4804-185-0x0000000000400000-0x00000000004A9000-memory.dmp

    Filesize

    676KB