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Analysis

  • max time kernel
    66s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/09/2022, 00:40

General

  • Target

    30c417c811d92eb4ca47f1c1d526e6d1580a3fcfe221e360dd9394dbd5ba6db6.exe

  • Size

    647KB

  • MD5

    c1bf55712269a7da0bc3d94225b97240

  • SHA1

    e1bf38a36df2c42af329cfa4f5e2caa52843a7dd

  • SHA256

    30c417c811d92eb4ca47f1c1d526e6d1580a3fcfe221e360dd9394dbd5ba6db6

  • SHA512

    0e667a204d258cef08391f975261fc49063c83de96e806f72a320b534b93e1cfd6013b9a4e56c0d8abb56d115644a7e686ec33ac978c6248f13b3e2e3b3dda02

  • SSDEEP

    12288:XOnidWRBe5EOVNzo4BDlUWaBIDO0HyOZFpNH6arrr570SdrUHY8y9NBQUUaYMrwI:+nGWRBe5TPYWaC/yIpvrrd70SNUHY3QE

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .oflg

  • offline_id

    xkNzhkB1wvgoDI7Uo0HPNLY3qCuwoFpP7nlhlut1

  • payload_url

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

    http://winnlinne.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-EWKSsSJiVn 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: 0566Jhyjd

rsa_pubkey.plain

Extracted

Family

vidar

Version

54.6

Botnet

517

C2

https://t.me/huobiinside

https://mas.to/@kyriazhs1975

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.

  • 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
  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 56 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\30c417c811d92eb4ca47f1c1d526e6d1580a3fcfe221e360dd9394dbd5ba6db6.exe
    "C:\Users\Admin\AppData\Local\Temp\30c417c811d92eb4ca47f1c1d526e6d1580a3fcfe221e360dd9394dbd5ba6db6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3036
    • C:\Users\Admin\AppData\Local\Temp\30c417c811d92eb4ca47f1c1d526e6d1580a3fcfe221e360dd9394dbd5ba6db6.exe
      "C:\Users\Admin\AppData\Local\Temp\30c417c811d92eb4ca47f1c1d526e6d1580a3fcfe221e360dd9394dbd5ba6db6.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2424
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\367b0077-d7cc-4486-9148-862513d1873c" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:1220
      • C:\Users\Admin\AppData\Local\Temp\30c417c811d92eb4ca47f1c1d526e6d1580a3fcfe221e360dd9394dbd5ba6db6.exe
        "C:\Users\Admin\AppData\Local\Temp\30c417c811d92eb4ca47f1c1d526e6d1580a3fcfe221e360dd9394dbd5ba6db6.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4588
        • C:\Users\Admin\AppData\Local\Temp\30c417c811d92eb4ca47f1c1d526e6d1580a3fcfe221e360dd9394dbd5ba6db6.exe
          "C:\Users\Admin\AppData\Local\Temp\30c417c811d92eb4ca47f1c1d526e6d1580a3fcfe221e360dd9394dbd5ba6db6.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1076
          • C:\Users\Admin\AppData\Local\ad8bd451-c1d5-42a3-8c7e-88a5ba7e4cb1\build2.exe
            "C:\Users\Admin\AppData\Local\ad8bd451-c1d5-42a3-8c7e-88a5ba7e4cb1\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:260
            • C:\Users\Admin\AppData\Local\ad8bd451-c1d5-42a3-8c7e-88a5ba7e4cb1\build2.exe
              "C:\Users\Admin\AppData\Local\ad8bd451-c1d5-42a3-8c7e-88a5ba7e4cb1\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:3180
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" \/c taskkill /im build2.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\ad8bd451-c1d5-42a3-8c7e-88a5ba7e4cb1\build2.exe" & del C:\PrograData\*.dll & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:3320
                • C:\Windows\SysWOW64\taskkill.exe
                  taskkill /im build2.exe /f
                  8⤵
                  • Kills process with taskkill
                  • Suspicious use of AdjustPrivilegeToken
                  PID:3588
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:1564
          • C:\Users\Admin\AppData\Local\ad8bd451-c1d5-42a3-8c7e-88a5ba7e4cb1\build3.exe
            "C:\Users\Admin\AppData\Local\ad8bd451-c1d5-42a3-8c7e-88a5ba7e4cb1\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:2040
            • 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:1876
  • 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:800
    • 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:3504

Network

MITRE ATT&CK Enterprise v6

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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

    3229b6929fc9caec79e3e5ad740250c6

    SHA1

    d677cb89c767b4c4a444fedfa53dd6c8aa1d7d6e

    SHA256

    ece826b5b4484d173ea804773ca9a13c7248d2f6f3c8a7efeea2a9e3691d7628

    SHA512

    79b5ab3c41f03f913c0c947c6b6c66f396af97f7f69b3df72622beb9fddf8c6cc1a4f830d3edbd91ec570ce59531f09db54e51a2694a8b330ded69fd932036d1

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

    Filesize

    1KB

    MD5

    edcd4c783b2b2c906602519bd8f697f4

    SHA1

    fc56fded4065d6960c6507cac4264dfd2b038004

    SHA256

    367e0ac4e24f1d1530de05a6abf81d6b572c0546b5aa134c246fa1514582fd90

    SHA512

    cb23a82c06211121e39ed0dbec5928b1a85aca7c25f2c060d609350e3a94bf82e9159a2a4d5e67295fc29bac22c95d525ea2461a0000d24c6c4cb630520f68d0

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

    Filesize

    488B

    MD5

    cb5ea50790fe7e3226a860e2ec280cda

    SHA1

    d73a1a257a89422cde85c0447d9cffcbcf6476f4

    SHA256

    81d40c1002fbe0fbb97b633f8c9bd916077ffb798ffa0d2a3969abf0b067e6de

    SHA512

    a48bdd3e7c5a65127b1e9c258083b092773bc5db543006993df877b36c853a94be1f6bb20d2fe75ae6546a710650da93060c9e2b3177162a91e6785fa35da2da

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

    Filesize

    482B

    MD5

    2b75e5bcaaab425a0fd8904b285c07d2

    SHA1

    e13d1ce433e6da892279eccbac752de8f0801d8e

    SHA256

    214ba70808837c8c205212f98cc73cdfe21face994daa1e5373c71122b3a96ff

    SHA512

    9e73b228bf53c97b8a0fbedb06cfe35f21f042eaf52f0581f14632191e3c5eef39ea1a4c795204b9003c067eb84bfd64744c9c43bf9e3702ffe1d7ffc7c394c6

  • C:\Users\Admin\AppData\Local\367b0077-d7cc-4486-9148-862513d1873c\30c417c811d92eb4ca47f1c1d526e6d1580a3fcfe221e360dd9394dbd5ba6db6.exe

    Filesize

    647KB

    MD5

    c1bf55712269a7da0bc3d94225b97240

    SHA1

    e1bf38a36df2c42af329cfa4f5e2caa52843a7dd

    SHA256

    30c417c811d92eb4ca47f1c1d526e6d1580a3fcfe221e360dd9394dbd5ba6db6

    SHA512

    0e667a204d258cef08391f975261fc49063c83de96e806f72a320b534b93e1cfd6013b9a4e56c0d8abb56d115644a7e686ec33ac978c6248f13b3e2e3b3dda02

  • C:\Users\Admin\AppData\Local\ad8bd451-c1d5-42a3-8c7e-88a5ba7e4cb1\build2.exe

    Filesize

    246KB

    MD5

    4e08ecaa075b90f30327bf200d23130b

    SHA1

    f7b67a7abbe3815bd758933f7c4712bd4d4ec4b2

    SHA256

    6c11af0bbd346329224255d38a07fb9db5828881d3520ab4623c7a5fc09ecd47

    SHA512

    e7deeafe000b034cd4d71776cd1285e33d295a830f3459506dd7332e8c1c61b43ec2fdc406c22ba5262aa62a795421492f7e54602bfe08102b8b2a000d150bb7

  • C:\Users\Admin\AppData\Local\ad8bd451-c1d5-42a3-8c7e-88a5ba7e4cb1\build2.exe

    Filesize

    246KB

    MD5

    4e08ecaa075b90f30327bf200d23130b

    SHA1

    f7b67a7abbe3815bd758933f7c4712bd4d4ec4b2

    SHA256

    6c11af0bbd346329224255d38a07fb9db5828881d3520ab4623c7a5fc09ecd47

    SHA512

    e7deeafe000b034cd4d71776cd1285e33d295a830f3459506dd7332e8c1c61b43ec2fdc406c22ba5262aa62a795421492f7e54602bfe08102b8b2a000d150bb7

  • C:\Users\Admin\AppData\Local\ad8bd451-c1d5-42a3-8c7e-88a5ba7e4cb1\build2.exe

    Filesize

    246KB

    MD5

    4e08ecaa075b90f30327bf200d23130b

    SHA1

    f7b67a7abbe3815bd758933f7c4712bd4d4ec4b2

    SHA256

    6c11af0bbd346329224255d38a07fb9db5828881d3520ab4623c7a5fc09ecd47

    SHA512

    e7deeafe000b034cd4d71776cd1285e33d295a830f3459506dd7332e8c1c61b43ec2fdc406c22ba5262aa62a795421492f7e54602bfe08102b8b2a000d150bb7

  • C:\Users\Admin\AppData\Local\ad8bd451-c1d5-42a3-8c7e-88a5ba7e4cb1\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\ad8bd451-c1d5-42a3-8c7e-88a5ba7e4cb1\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/260-165-0x0000000000648000-0x0000000000671000-memory.dmp

    Filesize

    164KB

  • memory/260-167-0x00000000020A0000-0x00000000020E7000-memory.dmp

    Filesize

    284KB

  • memory/1076-146-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1076-148-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1076-153-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1076-193-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2424-139-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2424-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2424-134-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2424-135-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2424-143-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3036-137-0x00000000023F0000-0x000000000250B000-memory.dmp

    Filesize

    1.1MB

  • memory/3036-136-0x0000000002339000-0x00000000023CB000-memory.dmp

    Filesize

    584KB

  • memory/3036-132-0x0000000002339000-0x00000000023CB000-memory.dmp

    Filesize

    584KB

  • memory/3180-164-0x0000000000400000-0x000000000045B000-memory.dmp

    Filesize

    364KB

  • memory/3180-169-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/3180-168-0x0000000000400000-0x000000000045B000-memory.dmp

    Filesize

    364KB

  • memory/3180-166-0x0000000000400000-0x000000000045B000-memory.dmp

    Filesize

    364KB

  • memory/3180-190-0x0000000000400000-0x000000000045B000-memory.dmp

    Filesize

    364KB

  • memory/3180-162-0x0000000000400000-0x000000000045B000-memory.dmp

    Filesize

    364KB

  • memory/4588-147-0x0000000002333000-0x00000000023C5000-memory.dmp

    Filesize

    584KB