Analysis

  • max time kernel
    146s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/04/2023, 11:20

General

  • Target

    f2775ac42cfbba71e7864177a4a411bb7a38ea88c239965d3fb6ff4b117ab58f.exe

  • Size

    788KB

  • MD5

    ba962fdfc167523bc24091a46e8dba17

  • SHA1

    5884063fed42be67803cc1133b602bb3b9f0021a

  • SHA256

    f2775ac42cfbba71e7864177a4a411bb7a38ea88c239965d3fb6ff4b117ab58f

  • SHA512

    4bf47c74bca1ba5bcd32756e71fd10e84084974528252dc010699a781566878855fbcc72ad8cd77df3ea97d5b4c62b56371e71afd370fcbabf0cbac0ccc66579

  • SSDEEP

    24576:PzAwud2xq8OSf0jBX51nbOrDJq59rAPYWy:Pkdiqa0xXqnJWEYW

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .kiwm

  • offline_id

    iIlWwF8bQ6n1I71JdbwrJ0LNue9L0IeEoD6KAJt1

  • 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-lEbmgnjBGi 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: 0685JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

3.3

Botnet

b12e0b8009914d9dfb3d1b8ced1d3a65

C2

https://steamcommunity.com/profiles/76561199492257783

https://t.me/justsometg

Attributes
  • profile_id_v2

    b12e0b8009914d9dfb3d1b8ced1d3a65

  • 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 17 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\f2775ac42cfbba71e7864177a4a411bb7a38ea88c239965d3fb6ff4b117ab58f.exe
    "C:\Users\Admin\AppData\Local\Temp\f2775ac42cfbba71e7864177a4a411bb7a38ea88c239965d3fb6ff4b117ab58f.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3388
    • C:\Users\Admin\AppData\Local\Temp\f2775ac42cfbba71e7864177a4a411bb7a38ea88c239965d3fb6ff4b117ab58f.exe
      "C:\Users\Admin\AppData\Local\Temp\f2775ac42cfbba71e7864177a4a411bb7a38ea88c239965d3fb6ff4b117ab58f.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2108
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\c868d642-5c65-4c72-891c-a3e610d8a8d7" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4828
      • C:\Users\Admin\AppData\Local\Temp\f2775ac42cfbba71e7864177a4a411bb7a38ea88c239965d3fb6ff4b117ab58f.exe
        "C:\Users\Admin\AppData\Local\Temp\f2775ac42cfbba71e7864177a4a411bb7a38ea88c239965d3fb6ff4b117ab58f.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:324
        • C:\Users\Admin\AppData\Local\Temp\f2775ac42cfbba71e7864177a4a411bb7a38ea88c239965d3fb6ff4b117ab58f.exe
          "C:\Users\Admin\AppData\Local\Temp\f2775ac42cfbba71e7864177a4a411bb7a38ea88c239965d3fb6ff4b117ab58f.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4620
          • C:\Users\Admin\AppData\Local\01637166-005c-4eec-8de3-1f57048882d5\build2.exe
            "C:\Users\Admin\AppData\Local\01637166-005c-4eec-8de3-1f57048882d5\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2636
            • C:\Users\Admin\AppData\Local\01637166-005c-4eec-8de3-1f57048882d5\build2.exe
              "C:\Users\Admin\AppData\Local\01637166-005c-4eec-8de3-1f57048882d5\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:4680
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\01637166-005c-4eec-8de3-1f57048882d5\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:2112
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:1292
          • C:\Users\Admin\AppData\Local\01637166-005c-4eec-8de3-1f57048882d5\build3.exe
            "C:\Users\Admin\AppData\Local\01637166-005c-4eec-8de3-1f57048882d5\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:1404
            • 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:1348
  • 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:4368
    • 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:4536

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

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

    76a44c88579ed3e3d8ab8478d3cbc539

    SHA1

    539ac9f837efb72f7c9131b8974b747e7f65c049

    SHA256

    ba7af773db817754379099994f9bc4447dcdd2c2160137fafc1a4a88f68a89a5

    SHA512

    772aa0b4c0e8816ed1aa6be6ce3de1b62777bf34adc4db5b9c547e00f53112fd4b7c79481f7f10bc72be83fb0298f9c57fdb715dd70292d2bdc1fbe773178558

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

    Filesize

    1KB

    MD5

    a8c5ec082ddbfa706307d295f25ae6fa

    SHA1

    9d59be752069e201236a1edec3c3b374afc1b382

    SHA256

    c6e194e6a673e59490dfe69c0ea81bff16de4cb1b9b82408dc2738ec7efe488c

    SHA512

    80441dd81f5edc564f50c550a2b93db1bcf7d809811f8df43896d4d3d85c4bda95e735e67f82edf951f2601c84119f8a0769df3643ec777172f1134132ec6dd8

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

    Filesize

    488B

    MD5

    0098d842110a440d202dd5d087f03fa4

    SHA1

    7a440fd12d780279a641b75b583cd941b6dd85a4

    SHA256

    672b5ad1777debfd5d072beb2b3fc76fa6c313bb668546c414fbd8d8d3ee70be

    SHA512

    2459a4a52b5f1d5f241cafbb935c1e2e0d65f3eef5c4135d342bb79e9c08eab19aa522260ee06b6abe2c6d04400101c10a581d27fd977382934b81587ab13b1c

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

    Filesize

    482B

    MD5

    783902ce56cf74972ab04d1aab2cf52f

    SHA1

    2d6e3e8424f9def91624afee06b69d71d98af950

    SHA256

    16a9887ecd9c6e402be02edb14dfc27f601b20d5fc72da156a2ebcd49372fdfc

    SHA512

    3cd28b3b31931fd81ca417ed7e54711fc6ed77e8472b0536e6d3c4966b30a1762ab018865b4e7d0b1df1175a5090d57349690b68ff95a93822a297c80f0e3fb5

  • C:\Users\Admin\AppData\Local\01637166-005c-4eec-8de3-1f57048882d5\build2.exe

    Filesize

    358KB

    MD5

    e9a006e6c407decd13f6fe02934482f4

    SHA1

    328147c1770b09047619e1ca23e325516f800237

    SHA256

    c73c5027ec11576250105ea0664c33a51f3a19901c6bcbfd84d88c94f3482435

    SHA512

    621adf1019bdf8ec46806ce35139e99e07d14bf09af7e3eb87ba8df40a9a3561a3b43c69141a6a70ec7874823182dfe9216838437f4dd90273442d0fce71df3d

  • C:\Users\Admin\AppData\Local\01637166-005c-4eec-8de3-1f57048882d5\build2.exe

    Filesize

    358KB

    MD5

    e9a006e6c407decd13f6fe02934482f4

    SHA1

    328147c1770b09047619e1ca23e325516f800237

    SHA256

    c73c5027ec11576250105ea0664c33a51f3a19901c6bcbfd84d88c94f3482435

    SHA512

    621adf1019bdf8ec46806ce35139e99e07d14bf09af7e3eb87ba8df40a9a3561a3b43c69141a6a70ec7874823182dfe9216838437f4dd90273442d0fce71df3d

  • C:\Users\Admin\AppData\Local\01637166-005c-4eec-8de3-1f57048882d5\build2.exe

    Filesize

    358KB

    MD5

    e9a006e6c407decd13f6fe02934482f4

    SHA1

    328147c1770b09047619e1ca23e325516f800237

    SHA256

    c73c5027ec11576250105ea0664c33a51f3a19901c6bcbfd84d88c94f3482435

    SHA512

    621adf1019bdf8ec46806ce35139e99e07d14bf09af7e3eb87ba8df40a9a3561a3b43c69141a6a70ec7874823182dfe9216838437f4dd90273442d0fce71df3d

  • C:\Users\Admin\AppData\Local\01637166-005c-4eec-8de3-1f57048882d5\build2.exe

    Filesize

    358KB

    MD5

    e9a006e6c407decd13f6fe02934482f4

    SHA1

    328147c1770b09047619e1ca23e325516f800237

    SHA256

    c73c5027ec11576250105ea0664c33a51f3a19901c6bcbfd84d88c94f3482435

    SHA512

    621adf1019bdf8ec46806ce35139e99e07d14bf09af7e3eb87ba8df40a9a3561a3b43c69141a6a70ec7874823182dfe9216838437f4dd90273442d0fce71df3d

  • C:\Users\Admin\AppData\Local\01637166-005c-4eec-8de3-1f57048882d5\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\01637166-005c-4eec-8de3-1f57048882d5\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\01637166-005c-4eec-8de3-1f57048882d5\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\c868d642-5c65-4c72-891c-a3e610d8a8d7\f2775ac42cfbba71e7864177a4a411bb7a38ea88c239965d3fb6ff4b117ab58f.exe

    Filesize

    788KB

    MD5

    ba962fdfc167523bc24091a46e8dba17

    SHA1

    5884063fed42be67803cc1133b602bb3b9f0021a

    SHA256

    f2775ac42cfbba71e7864177a4a411bb7a38ea88c239965d3fb6ff4b117ab58f

    SHA512

    4bf47c74bca1ba5bcd32756e71fd10e84084974528252dc010699a781566878855fbcc72ad8cd77df3ea97d5b4c62b56371e71afd370fcbabf0cbac0ccc66579

  • 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/2108-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2108-134-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2108-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2108-135-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2108-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2636-181-0x0000000002410000-0x0000000002467000-memory.dmp

    Filesize

    348KB

  • memory/3388-136-0x00000000027F0000-0x000000000290B000-memory.dmp

    Filesize

    1.1MB

  • memory/4620-158-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4620-264-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4620-151-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4620-152-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4620-275-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4620-157-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4620-213-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4620-166-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4620-165-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4620-159-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4620-163-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4680-193-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/4680-265-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/4680-263-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/4680-262-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/4680-178-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/4680-183-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/4680-182-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/4680-180-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB