Analysis

  • max time kernel
    150s
  • max time network
    129s
  • platform
    windows10-1703_x64
  • resource
    win10-20230915-en
  • resource tags

    arch:x64arch:x86image:win10-20230915-enlocale:en-usos:windows10-1703-x64system
  • submitted
    27/09/2023, 09:06

General

  • Target

    6b9b65805c8e2e937afd2a1ba7602cbcd80358f2e75e04160e419615e1e1bcdc.exe

  • Size

    742KB

  • MD5

    e38e0c7603b34e1d6612412537f9ad60

  • SHA1

    a5c64ee337b723f270912031d6b39a16e118b55b

  • SHA256

    6b9b65805c8e2e937afd2a1ba7602cbcd80358f2e75e04160e419615e1e1bcdc

  • SHA512

    9b592034875ebeda47421f7cbd749005a551145aa68c05bade27eed789e26a363fa810df03dad0180327580ca53f6064946511642827f13e8b234f69e9387a5c

  • SSDEEP

    12288:Kpy2Oy/R9yHMKo40yQTTX+BEp+pRuoxTBqqGS4uow8/VCtrFGUUs/z:Kpy2F/PysKZzEBpob4w89erwUUQz

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .mzop

  • offline_id

    64GZgS7xxeK837qu1w0KPUK0sweaDoAeJlv15vt1

  • 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-sxZWJ43EKx 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: 0796JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

5.8

Botnet

be957cbbdc7ee5ad3ee6c696b5eb3079

C2

https://steamcommunity.com/profiles/76561199555780195

https://t.me/solonichat

Attributes
  • profile_id_v2

    be957cbbdc7ee5ad3ee6c696b5eb3079

  • user_agent

    Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.0.0 Safari/537.36

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 3 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 1 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 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6b9b65805c8e2e937afd2a1ba7602cbcd80358f2e75e04160e419615e1e1bcdc.exe
    "C:\Users\Admin\AppData\Local\Temp\6b9b65805c8e2e937afd2a1ba7602cbcd80358f2e75e04160e419615e1e1bcdc.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4360
    • C:\Users\Admin\AppData\Local\Temp\6b9b65805c8e2e937afd2a1ba7602cbcd80358f2e75e04160e419615e1e1bcdc.exe
      "C:\Users\Admin\AppData\Local\Temp\6b9b65805c8e2e937afd2a1ba7602cbcd80358f2e75e04160e419615e1e1bcdc.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2940
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\5b284136-3c5e-424c-9d37-0756729c5bc8" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:3884
      • C:\Users\Admin\AppData\Local\Temp\6b9b65805c8e2e937afd2a1ba7602cbcd80358f2e75e04160e419615e1e1bcdc.exe
        "C:\Users\Admin\AppData\Local\Temp\6b9b65805c8e2e937afd2a1ba7602cbcd80358f2e75e04160e419615e1e1bcdc.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1440
        • C:\Users\Admin\AppData\Local\Temp\6b9b65805c8e2e937afd2a1ba7602cbcd80358f2e75e04160e419615e1e1bcdc.exe
          "C:\Users\Admin\AppData\Local\Temp\6b9b65805c8e2e937afd2a1ba7602cbcd80358f2e75e04160e419615e1e1bcdc.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:3744
          • C:\Users\Admin\AppData\Local\1d1ea525-4551-4c56-93db-b4b648591768\build2.exe
            "C:\Users\Admin\AppData\Local\1d1ea525-4551-4c56-93db-b4b648591768\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1304
            • C:\Users\Admin\AppData\Local\1d1ea525-4551-4c56-93db-b4b648591768\build2.exe
              "C:\Users\Admin\AppData\Local\1d1ea525-4551-4c56-93db-b4b648591768\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:4332
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\1d1ea525-4551-4c56-93db-b4b648591768\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:4952
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:1460
          • C:\Users\Admin\AppData\Local\1d1ea525-4551-4c56-93db-b4b648591768\build3.exe
            "C:\Users\Admin\AppData\Local\1d1ea525-4551-4c56-93db-b4b648591768\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:5084
            • 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:2788

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    2KB

    MD5

    09d2bae3b05f4c92b25a8c6225df6483

    SHA1

    ff084d8a1f43903b95bf9144b3719126a3d40cc8

    SHA256

    a282e51236ad1fb5eb73b2d8d8cb022213cda792705d8f595b504e2b6d2e00c5

    SHA512

    2151cb657a649acbc7009b20a0101f4d196a2c3cf4793885f95e8b865fb6da424a17fa139b97e312e2157a559beb5be63c824841c871114fec949d810c92bd2c

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

    Filesize

    1KB

    MD5

    c0419d05ad443966df72dd199ad71dd8

    SHA1

    0ba0b1ddfbd9e45879342dba9191efbc478edf05

    SHA256

    49e4e0f0690e9d8e830bd520e4cd37e616a530274c6b9ce978f11c122c19696b

    SHA512

    e63bd124dd8d1b8993b42507a81e39c74edabfc5798cef0869638f3c2ee95a4646aab829d0d974e7912d7fa127f1098d98b92d31b4b01e1d4b4ddfd8e6e84c91

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

    Filesize

    488B

    MD5

    2a7941d5fda3b4fff10ca589ecec3bdb

    SHA1

    487a04358734d0abfa24928756bb758b8a3e3d47

    SHA256

    9b57fd629b176c829d43f7a857e7aafb7d6d6baab2f5ca9a18046f6667aa7ce4

    SHA512

    994ae2af570ef467a28a78003df45941223e97817645a08ebf78e468d804bccca3aaa1c03cb1aa6f64bc162f9ba20db01d1fa2578d2c220439d6ec355b5af1df

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

    Filesize

    482B

    MD5

    cf2facb537ce655c558364ff71654fd1

    SHA1

    df498ea0159bdb89b1be9f153e57cf4b6e6115e4

    SHA256

    3d6a14a779d2125201d9a6c2e0393ca4e633cbc2bc3587fdd81c60e005a75385

    SHA512

    17d77174d72f04d1773324d096c86b1bae525466ea95eed11d91d2a948a8de6bd1934675b567fa27f543d41a72ecd46085fdbe53284db308f434a67d6c057545

  • C:\Users\Admin\AppData\Local\1d1ea525-4551-4c56-93db-b4b648591768\build2.exe

    Filesize

    418KB

    MD5

    dcd1bd0f92fe24bf269f0e3ace8de280

    SHA1

    73c06bb4010b87a83e07bcaf3d181e68d24da11f

    SHA256

    fc0757507960b91ab61afe79de7e316fabde48f983a8a497a709c19c99012456

    SHA512

    2846a18a6687b26a4ec7267b16f139a10c1ace288f5bc893a5e600f07dc9714517f2610f33518afda41707a31a68cf0cbcd4b838568bba6f1833edc7300d6ceb

  • C:\Users\Admin\AppData\Local\1d1ea525-4551-4c56-93db-b4b648591768\build2.exe

    Filesize

    418KB

    MD5

    dcd1bd0f92fe24bf269f0e3ace8de280

    SHA1

    73c06bb4010b87a83e07bcaf3d181e68d24da11f

    SHA256

    fc0757507960b91ab61afe79de7e316fabde48f983a8a497a709c19c99012456

    SHA512

    2846a18a6687b26a4ec7267b16f139a10c1ace288f5bc893a5e600f07dc9714517f2610f33518afda41707a31a68cf0cbcd4b838568bba6f1833edc7300d6ceb

  • C:\Users\Admin\AppData\Local\1d1ea525-4551-4c56-93db-b4b648591768\build2.exe

    Filesize

    418KB

    MD5

    dcd1bd0f92fe24bf269f0e3ace8de280

    SHA1

    73c06bb4010b87a83e07bcaf3d181e68d24da11f

    SHA256

    fc0757507960b91ab61afe79de7e316fabde48f983a8a497a709c19c99012456

    SHA512

    2846a18a6687b26a4ec7267b16f139a10c1ace288f5bc893a5e600f07dc9714517f2610f33518afda41707a31a68cf0cbcd4b838568bba6f1833edc7300d6ceb

  • C:\Users\Admin\AppData\Local\1d1ea525-4551-4c56-93db-b4b648591768\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\1d1ea525-4551-4c56-93db-b4b648591768\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\5b284136-3c5e-424c-9d37-0756729c5bc8\6b9b65805c8e2e937afd2a1ba7602cbcd80358f2e75e04160e419615e1e1bcdc.exe

    Filesize

    742KB

    MD5

    e38e0c7603b34e1d6612412537f9ad60

    SHA1

    a5c64ee337b723f270912031d6b39a16e118b55b

    SHA256

    6b9b65805c8e2e937afd2a1ba7602cbcd80358f2e75e04160e419615e1e1bcdc

    SHA512

    9b592034875ebeda47421f7cbd749005a551145aa68c05bade27eed789e26a363fa810df03dad0180327580ca53f6064946511642827f13e8b234f69e9387a5c

  • 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/1304-47-0x0000000004100000-0x0000000004151000-memory.dmp

    Filesize

    324KB

  • memory/1304-46-0x00000000026B0000-0x00000000027B0000-memory.dmp

    Filesize

    1024KB

  • memory/1440-19-0x0000000001FA0000-0x0000000002032000-memory.dmp

    Filesize

    584KB

  • memory/2940-17-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2940-6-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2940-5-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2940-3-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2940-2-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3744-35-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3744-37-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3744-36-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3744-21-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3744-33-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3744-29-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3744-105-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3744-28-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3744-22-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3744-23-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4332-63-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/4332-52-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/4332-51-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/4332-50-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/4332-48-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/4332-109-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/4332-111-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/4332-112-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/4360-0-0x00000000021A0000-0x0000000002232000-memory.dmp

    Filesize

    584KB

  • memory/4360-4-0x00000000021A0000-0x0000000002232000-memory.dmp

    Filesize

    584KB

  • memory/4360-1-0x0000000000780000-0x000000000089B000-memory.dmp

    Filesize

    1.1MB