General
Target

d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe

Filesize

681KB

Completed

21-05-2022 10:51

Task

behavioral2

Score
10/10
MD5

84174a142d30afe6075d57a1aead4d18

SHA1

330dfeed26f3ac123aa182fd28751144ea9b097a

SHA256

d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18

SHA256

f65c51eaf55b1ecbbb3a82f9bab0b5428f04727fbc7795679eb6c127847eb668259bf3fe406b35e6e36902b653d28c33449caec882677b24f95daab7e44f9866

Malware Config

Extracted

Family

djvu

C2

http://cjto.top/nddddhsspen6/get.php

Attributes
extension
.geno
offline_id
Gq9C3wfB3EovXBFkGxv1b5wkUKUxVy1x63fasTt1
payload_url
http://cjto.top/files/penelop/updatewin1.exe
http://cjto.top/files/penelop/updatewin2.exe
http://cjto.top/files/penelop/updatewin.exe
http://cjto.top/files/penelop/3.exe
http://cjto.top/files/penelop/4.exe
http://cjto.top/files/penelop/5.exe
ransomnote
ATTENTION! Don't worry, you can return all your files! All your files like photos, 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-ZLZ4pVnuS4 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: helpmanager@mail.ch Reserve e-mail address to contact us: restoremanager@airmail.cc Your personal ID: 0248Oowhu34
rsa_pubkey.plain
Signatures 15

Filter: none

Defense Evasion
Discovery
Persistence
  • Detected Djvu ransomware

    Reported IOCs

    resourceyara_rule
    behavioral2/memory/4220-133-0x0000000006140000-0x000000000625A000-memory.dmpfamily_djvu
    behavioral2/memory/4220-135-0x0000000000400000-0x0000000005DE8000-memory.dmpfamily_djvu
    behavioral2/memory/2156-141-0x0000000000400000-0x0000000005DE8000-memory.dmpfamily_djvu
  • Djvu Ransomware

    Description

    Ransomware which is a variant of the STOP family.

  • suricata: ET MALWARE APT-C-23 Activity (GET)

    Description

    suricata: ET MALWARE APT-C-23 Activity (GET)

    Tags

  • suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

    Description

    suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

    Tags

  • suricata: ET MALWARE Win32/Filecoder.STOP Variant Request for Public Key

    Description

    suricata: ET MALWARE Win32/Filecoder.STOP Variant Request for Public Key

    Tags

  • suricata: ET MALWARE Win32/Vodkagats Loader Requesting Payload

    Description

    suricata: ET MALWARE Win32/Vodkagats Loader Requesting Payload

    Tags

  • Checks computer location settings
    d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe

    Description

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

    TTPs

    Query RegistrySystem Information Discovery

    Reported IOCs

    descriptioniocprocess
    Key value queried\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nationd323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe
  • Modifies file permissions
    icacls.exe

    Tags

    TTPs

    File Permissions Modification

    Reported IOCs

    pidprocess
    1936icacls.exe
  • Adds Run key to start application
    d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe

    TTPs

    Registry Run Keys / Startup FolderModify Registry

    Reported IOCs

    descriptioniocprocess
    Set value (str)\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\98221b2c-ba3d-4153-a763-42f30656798d\\d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe\" --AutoStart"d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe
  • Looks up external IP address via web service

    Description

    Uses a legitimate IP lookup service to find the infected system's external IP.

    Reported IOCs

    flowioc
    27api.2ip.ua
    28api.2ip.ua
    41api.2ip.ua
  • Enumerates physical storage devices

    Description

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

    TTPs

    System Information Discovery
  • Program crash
    WerFault.exe

    Reported IOCs

    pidpid_targetprocesstarget process
    45884220WerFault.exed323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe
  • Modifies system certificate store
    d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe

    TTPs

    Install Root CertificateModify Registry

    Reported IOCs

    descriptioniocprocess
    Key created\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe
    Set value (data)\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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.exe
  • Suspicious behavior: EnumeratesProcesses
    d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exed323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe

    Reported IOCs

    pidprocess
    4220d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe
    4220d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe
    2156d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe
    2156d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe
  • Suspicious use of WriteProcessMemory
    d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe

    Reported IOCs

    descriptionpidprocesstarget process
    PID 4220 wrote to memory of 19364220d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exeicacls.exe
    PID 4220 wrote to memory of 19364220d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exeicacls.exe
    PID 4220 wrote to memory of 19364220d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exeicacls.exe
    PID 4220 wrote to memory of 21564220d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exed323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe
    PID 4220 wrote to memory of 21564220d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exed323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe
    PID 4220 wrote to memory of 21564220d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exed323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe
Processes 5
  • C:\Users\Admin\AppData\Local\Temp\d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe
    "C:\Users\Admin\AppData\Local\Temp\d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe"
    Checks computer location settings
    Adds Run key to start application
    Modifies system certificate store
    Suspicious behavior: EnumeratesProcesses
    Suspicious use of WriteProcessMemory
    PID:4220
    • C:\Windows\SysWOW64\icacls.exe
      icacls "C:\Users\Admin\AppData\Local\98221b2c-ba3d-4153-a763-42f30656798d" /deny *S-1-1-0:(OI)(CI)(DE,DC)
      Modifies file permissions
      PID:1936
    • C:\Users\Admin\AppData\Local\Temp\d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe
      "C:\Users\Admin\AppData\Local\Temp\d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe" --Admin IsNotAutoStart IsNotTask
      Suspicious behavior: EnumeratesProcesses
      PID:2156
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4220 -s 2140
      Program crash
      PID:4588
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4220 -ip 4220
    PID:2008
Network
MITRE ATT&CK Matrix
Collection
    Command and Control
      Credential Access
        Execution
          Exfiltration
            Impact
              Initial Access
                Lateral Movement
                  Privilege Escalation
                    Replay Monitor
                    00:00 00:00
                    Downloads
                    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

                      MD5

                      93995ad095112907cfc088998c161574

                      SHA1

                      518c7127e11809bb74ff0f68ea7e86ea5aebc798

                      SHA256

                      fd16d238bcac3441688e7ca940c27bb02df8f0bf43b26d8e551414a18748c1cc

                      SHA512

                      c2a3153c65f0acbc821bf663b38591821402d9a00680e2e22f410bf1735752194c08b96f77b7e6712082584a8b6605f7ab9552ad2f6c193fbd13c90bb60436e9

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

                      MD5

                      c04f441d0220712231531a90823834db

                      SHA1

                      68dd18f1e0c51f1fdc4621394091a2dad08e4a08

                      SHA256

                      055641d3987ae98e2dd627d3214ea8084ae773a3df9592191b86977c752a29e7

                      SHA512

                      3156cf79585a45d919d4b27da4fe860f06e3206961fe1d20347ad74ef17de81c47857f35acd5cda3fae5ade28ab9747529ea3e8e79ca80aaf98e1f0e852bed53

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

                      MD5

                      bb9e9c4ee5b1e3c54ea76dd131a7e3c6

                      SHA1

                      05ccc4916f7ed2e53aea4905b0bf70a7ffd2ac3b

                      SHA256

                      dff90053c86553eb7073ef787e4d76301e8f2366caf17e618d8862d74fcbb47f

                      SHA512

                      8af9c02390332f68946754d710ee29285f9db608113ecf6a5739693a46f924120e33064da420fd9eff31c8273ea76bc77a13c08100cefd041d6bf608e1b55109

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

                      MD5

                      c064e4bc4d496d45c082047e0db0b7a9

                      SHA1

                      038c6712be320d8827bc7aab8b900798aa9fb6be

                      SHA256

                      3eb55d453580944f90e900c74f07d0cd3428a928422f933f18d0d94cbcc3c654

                      SHA512

                      06d068ffc8e23f8648a31eb4f92174615901fae04ba88e01472b5e212d38650a67f61383eab0807d3c637fa42a7d1423d8ad5a4e269af7db9d9548272d305cdc

                    • C:\Users\Admin\AppData\Local\98221b2c-ba3d-4153-a763-42f30656798d\d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18.exe

                      MD5

                      84174a142d30afe6075d57a1aead4d18

                      SHA1

                      330dfeed26f3ac123aa182fd28751144ea9b097a

                      SHA256

                      d323c8c35817f7c9d6691ba07433a71816e18bb2ed7a7e468bc7c4536cf4db18

                      SHA512

                      f65c51eaf55b1ecbbb3a82f9bab0b5428f04727fbc7795679eb6c127847eb668259bf3fe406b35e6e36902b653d28c33449caec882677b24f95daab7e44f9866

                    • memory/1936-130-0x0000000000000000-mapping.dmp

                    • memory/2156-141-0x0000000000400000-0x0000000005DE8000-memory.dmp

                    • memory/2156-136-0x0000000007A52000-0x0000000007AE3000-memory.dmp

                    • memory/2156-134-0x0000000000000000-mapping.dmp

                    • memory/4220-132-0x00000000060A0000-0x0000000006131000-memory.dmp

                    • memory/4220-133-0x0000000006140000-0x000000000625A000-memory.dmp

                    • memory/4220-135-0x0000000000400000-0x0000000005DE8000-memory.dmp