Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    23/07/2021, 15:43

General

  • Target
    e42efa54b3ecec51bd18a6f8ecd72f65.exe
  • Size 207KB
  • Sample210723-73sbxmscc6
  • SHA256 98748a03aeda89cd33105254527ba92b2f7d070b794c648f2e7c823f68030809
  • MD5 SHA1 SHA512

Malware Config

Extracted

Path
  • C:\!!! ALL YOUR FILES ARE ENCRYPTED !!!.TXT

  • buran

Ransom Note
  • !!! ALL YOUR FILES ARE ENCRYPTED !!! All your files, documents, photos, databases and other important files are encrypted. You are not able to decrypt it by yourself! The only method of recovering files is to purchase an unique private key. Only we can give you this key and only we can recover your files. To be sure we have the decryptor and it works you can send an email: [email protected] and decrypt one file for free. But this file should be of not valuable! Do you really want to restore your files? Write to email: [email protected] telegram @udacha123yes 200$=24 hour Attention !!! in 24 hours the price will increase 3 times !!! have time to pay Your personal ID: AD5-547-272 Attention! * Do not rename encrypted files. * Do not try to decrypt your data using third party software, it may cause permanent data loss. * Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.

Extracted

Family
  • smokeloader

Version
  • 2020

C2
  • http://readinglistforjuly1.xyz/

  • http://readinglistforjuly2.xyz/

  • http://readinglistforjuly3.xyz/

  • http://readinglistforjuly4.xyz/

  • http://readinglistforjuly5.xyz/

  • http://readinglistforjuly6.xyz/

  • http://readinglistforjuly7.xyz/

  • http://readinglistforjuly8.xyz/

  • http://readinglistforjuly9.xyz/

  • http://readinglistforjuly10.xyz/

  • http://readinglistforjuly1.site/

  • http://readinglistforjuly2.site/

  • http://readinglistforjuly3.site/

  • http://readinglistforjuly4.site/

  • http://readinglistforjuly5.site/

  • http://readinglistforjuly6.site/

  • http://readinglistforjuly7.site/

  • http://readinglistforjuly8.site/

  • http://readinglistforjuly9.site/

  • http://readinglistforjuly10.site/

rc4.i32
rc4.i32

Extracted

Family
  • fickerstealer

C2
  • 93.115.18.205:80

Extracted

Family
  • vidar

Version
  • 39.7

Botnet
  • 408

C2
  • https://shpak125.tumblr.com/

Attributes
  • profile_id

    408

Extracted

Family
  • redline

Botnet
  • @evilnotlive

C2
  • 3.68.106.170:59223

Signatures

  • Buran

    Ransomware-as-a-service based on the VegaLocker family first identified in 2019.

  • Fickerstealer

    Ficker is an infostealer written in Rust and ASM.

  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine Payload 2 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)
  • suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
  • suricata: ET MALWARE Win32/Ficker Stealer Activity M3
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Vidar Stealer 2 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 13 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 12 IoCs
  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • 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 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates connected drives 3 TTPs 24 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 2 IoCs

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

  • Suspicious use of SetThreadContext 4 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 4 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Kills process with taskkill 1 IoCs
  • Modifies registry class 2 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 19 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e42efa54b3ecec51bd18a6f8ecd72f65.exe
    "C:\Users\Admin\AppData\Local\Temp\e42efa54b3ecec51bd18a6f8ecd72f65.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3212
    • C:\Users\Admin\AppData\Local\Temp\e42efa54b3ecec51bd18a6f8ecd72f65.exe
      "C:\Users\Admin\AppData\Local\Temp\e42efa54b3ecec51bd18a6f8ecd72f65.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:2288
  • C:\Users\Admin\AppData\Local\Temp\93BA.exe
    C:\Users\Admin\AppData\Local\Temp\93BA.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:1504
  • C:\Users\Admin\AppData\Local\Temp\9542.exe
    C:\Users\Admin\AppData\Local\Temp\9542.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    PID:3408
    • C:\Users\Admin\AppData\Local\Temp\9542.exe
      C:\Users\Admin\AppData\Local\Temp\9542.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:1584
  • C:\Users\Admin\AppData\Local\Temp\97B4.exe
    C:\Users\Admin\AppData\Local\Temp\97B4.exe
    1⤵
    • Executes dropped EXE
    • Adds Run key to start application
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:752
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\spoolsv.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\spoolsv.exe" -start
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      PID:4084
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /C wmic shadowcopy delete
        3⤵
          PID:2920
          • C:\Windows\SysWOW64\Wbem\WMIC.exe
            wmic shadowcopy delete
            4⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:3788
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /C vssadmin delete shadows /all /quiet
          3⤵
            PID:2380
            • C:\Windows\SysWOW64\vssadmin.exe
              vssadmin delete shadows /all /quiet
              4⤵
              • Interacts with shadow copies
              PID:2472
          • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\spoolsv.exe
            "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\spoolsv.exe" -agent 0
            3⤵
            • Executes dropped EXE
            • Drops file in Program Files directory
            PID:196
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /C wbadmin delete catalog -quiet
            3⤵
              PID:3084
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\system32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures
              3⤵
                PID:3120
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\system32\cmd.exe" /C bcdedit /set {default} recoveryenabled no
                3⤵
                  PID:2284
            • C:\Users\Admin\AppData\Local\Temp\98DD.exe
              C:\Users\Admin\AppData\Local\Temp\98DD.exe
              1⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • Suspicious use of WriteProcessMemory
              PID:2136
              • C:\Users\Admin\AppData\Local\Temp\98DD.exe
                C:\Users\Admin\AppData\Local\Temp\98DD.exe
                2⤵
                • Executes dropped EXE
                • Checks processor information in registry
                PID:1552
            • C:\Users\Admin\AppData\Local\Temp\9A65.exe
              C:\Users\Admin\AppData\Local\Temp\9A65.exe
              1⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              PID:2732
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c taskkill /im 9A65.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\9A65.exe" & del C:\ProgramData\*.dll & exit
                2⤵
                  PID:1000
                  • C:\Windows\SysWOW64\taskkill.exe
                    taskkill /im 9A65.exe /f
                    3⤵
                    • Kills process with taskkill
                    • Suspicious use of AdjustPrivilegeToken
                    PID:660
                  • C:\Windows\SysWOW64\timeout.exe
                    timeout /t 6
                    3⤵
                    • Delays execution with timeout.exe
                    PID:3212
              • C:\Users\Admin\AppData\Local\Temp\9D35.exe
                C:\Users\Admin\AppData\Local\Temp\9D35.exe
                1⤵
                • Executes dropped EXE
                PID:3824
              • C:\Users\Admin\AppData\Local\Temp\A2B4.exe
                C:\Users\Admin\AppData\Local\Temp\A2B4.exe
                1⤵
                • Executes dropped EXE
                PID:200
              • C:\Users\Admin\AppData\Local\Temp\A9AA.exe
                C:\Users\Admin\AppData\Local\Temp\A9AA.exe
                1⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                • Suspicious use of AdjustPrivilegeToken
                PID:2504
                • C:\Users\Admin\AppData\Local\Temp\A9AA.exe
                  C:\Users\Admin\AppData\Local\Temp\A9AA.exe
                  2⤵
                  • Executes dropped EXE
                  • Suspicious use of AdjustPrivilegeToken
                  PID:3932
              • C:\Windows\SysWOW64\explorer.exe
                C:\Windows\SysWOW64\explorer.exe
                1⤵
                  PID:2380
                • C:\Windows\explorer.exe
                  C:\Windows\explorer.exe
                  1⤵
                    PID:1004
                  • C:\Windows\SysWOW64\explorer.exe
                    C:\Windows\SysWOW64\explorer.exe
                    1⤵
                      PID:3176
                    • C:\Windows\explorer.exe
                      C:\Windows\explorer.exe
                      1⤵
                        PID:1472
                      • C:\Windows\SysWOW64\explorer.exe
                        C:\Windows\SysWOW64\explorer.exe
                        1⤵
                          PID:4052
                        • C:\Windows\explorer.exe
                          C:\Windows\explorer.exe
                          1⤵
                            PID:2700
                          • C:\Windows\SysWOW64\explorer.exe
                            C:\Windows\SysWOW64\explorer.exe
                            1⤵
                              PID:3952
                            • C:\Windows\explorer.exe
                              C:\Windows\explorer.exe
                              1⤵
                                PID:2148
                              • C:\Windows\SysWOW64\explorer.exe
                                C:\Windows\SysWOW64\explorer.exe
                                1⤵
                                  PID:1464
                                • C:\Windows\system32\vssvc.exe
                                  C:\Windows\system32\vssvc.exe
                                  1⤵
                                  • Suspicious use of AdjustPrivilegeToken
                                  PID:2752

                                Network

                                      MITRE ATT&CK Enterprise v6

                                      Replay Monitor

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                                      Downloads

                                      memory/200-180-0x0000000000400000-0x00000000008E4000-memory.dmp

                                      memory/1004-160-0x00000000007F0000-0x00000000007F7000-memory.dmp

                                      memory/1004-161-0x00000000007E0000-0x00000000007EC000-memory.dmp

                                      memory/1464-203-0x0000000000890000-0x0000000000899000-memory.dmp

                                      memory/1464-202-0x00000000008A0000-0x00000000008A5000-memory.dmp

                                      memory/1472-177-0x00000000006E0000-0x00000000006E9000-memory.dmp

                                      memory/1472-178-0x00000000006D0000-0x00000000006DF000-memory.dmp

                                      memory/1504-152-0x00000000025E0000-0x0000000002671000-memory.dmp

                                      memory/1504-153-0x0000000000400000-0x00000000008E4000-memory.dmp

                                      memory/1552-133-0x0000000000400000-0x0000000000448000-memory.dmp

                                      memory/1552-139-0x0000000000400000-0x0000000000448000-memory.dmp

                                      memory/1584-208-0x0000000000400000-0x0000000000495000-memory.dmp

                                      memory/1584-211-0x0000000000400000-0x0000000000495000-memory.dmp

                                      memory/2148-198-0x0000000000EA0000-0x0000000000EA9000-memory.dmp

                                      memory/2148-197-0x0000000000EB0000-0x0000000000EB5000-memory.dmp

                                      memory/2288-114-0x0000000000400000-0x0000000000409000-memory.dmp

                                      memory/2380-158-0x00000000008B0000-0x0000000000924000-memory.dmp

                                      memory/2380-159-0x0000000000840000-0x00000000008AB000-memory.dmp

                                      memory/2504-149-0x00000000001B0000-0x00000000001B1000-memory.dmp

                                      memory/2504-223-0x0000000000B40000-0x0000000000B4E000-memory.dmp

                                      memory/2504-235-0x0000000002300000-0x0000000002301000-memory.dmp

                                      memory/2700-192-0x0000000000FE0000-0x0000000000FEC000-memory.dmp

                                      memory/2700-191-0x0000000000FF0000-0x0000000000FF6000-memory.dmp

                                      memory/2732-174-0x0000000000400000-0x00000000008F9000-memory.dmp

                                      memory/2732-173-0x0000000000BC0000-0x0000000000C5D000-memory.dmp

                                      memory/3020-117-0x00000000010D0000-0x00000000010E6000-memory.dmp

                                      memory/3176-171-0x00000000007B0000-0x00000000007B7000-memory.dmp

                                      memory/3176-172-0x00000000007A0000-0x00000000007AB000-memory.dmp

                                      memory/3212-116-0x0000000000AD0000-0x0000000000ADA000-memory.dmp

                                      memory/3408-124-0x00000000000B0000-0x00000000000B1000-memory.dmp

                                      memory/3408-129-0x0000000004A90000-0x0000000004A91000-memory.dmp

                                      memory/3408-207-0x0000000004950000-0x000000000495F000-memory.dmp

                                      memory/3408-206-0x0000000004930000-0x0000000004931000-memory.dmp

                                      memory/3408-205-0x00000000049B0000-0x00000000049B1000-memory.dmp

                                      memory/3824-179-0x0000000000400000-0x00000000008E4000-memory.dmp

                                      memory/3932-238-0x00000000050A0000-0x00000000056A6000-memory.dmp

                                      memory/3932-237-0x00000000053E0000-0x00000000053E1000-memory.dmp

                                      memory/3932-234-0x0000000005130000-0x0000000005131000-memory.dmp

                                      memory/3932-233-0x00000000050D0000-0x00000000050D1000-memory.dmp

                                      memory/3932-232-0x00000000056B0000-0x00000000056B1000-memory.dmp

                                      memory/3932-226-0x0000000000400000-0x000000000041E000-memory.dmp

                                      memory/3932-236-0x0000000005170000-0x0000000005171000-memory.dmp

                                      memory/3952-195-0x0000000000550000-0x0000000000559000-memory.dmp

                                      memory/3952-194-0x0000000000560000-0x0000000000564000-memory.dmp

                                      memory/4052-186-0x0000000000AA0000-0x0000000000AA5000-memory.dmp

                                      memory/4052-187-0x0000000000A90000-0x0000000000A99000-memory.dmp