Analysis

  • max time kernel
    4294179s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20220223-en
  • submitted
    07-03-2022 19:17

General

  • Target

    Main__File.exe

  • Size

    3.8MB

  • MD5

    1ed83087be2b1284b30649a8da6a684d

  • SHA1

    1ac6f1f0e7c9c068105ed97e25cdee72abd029ab

  • SHA256

    ac4f3f5419ba904e15370cdaa5999b764e139fe0029d643563503b7c6560b756

  • SHA512

    0b18f961a77e1482e30b14a4d1ef63dfcca16dd41db09a47d0b23f9a2217688b50ecc88e3e4281009663c31ec1ec5c1a22b94bdc9398687d8af940230a5aed1d

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Themida packer 8 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • 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
  • AutoIT Executable 7 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • NTFS ADS 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 53 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 52 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Main__File.exe
    "C:\Users\Admin\AppData\Local\Temp\Main__File.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • NTFS ADS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:1208
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c copy /Y "C:\Users\Admin\Desktop\*.txt" "C:\Users\Admin\AppData\Local\Temp\6644\_Files"
      2⤵
        PID:768
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /U /C DIR "C:\Users\Admin\wallet.dat" /S /B /A-D
        2⤵
          PID:1104
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /U /C DIR "C:\Users\Admin\UTC--2*" /S /B /A-D
          2⤵
            PID:560
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c copy /Y "C:\Users\Admin\AppData\Local\google\chrome\User Data\Default\Web Data" "C:\Users\Admin\AppData\Local\Temp\6644\_Chrome\default_webdata.db"
            2⤵
              PID:1940
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c copy /Y "C:\Users\Admin\AppData\Local\google\chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\6644\_Chrome\default_logins.db"
              2⤵
                PID:1664
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /c copy /Y "C:\Users\Admin\AppData\Local\google\chrome\User Data\Default\Cookies" "C:\Users\Admin\AppData\Local\Temp\6644\_Chrome\default_cookies.db"
                2⤵
                  PID:1692
                • C:\Windows\SysWOW64\cmd.exe
                  C:\Windows\system32\cmd.exe /c copy /Y "C:\Users\Admin\AppData\Local\google\chrome\User Data\Default\Network\Cookies" "C:\Users\Admin\AppData\Local\Temp\6644\_Chrome\default_cookies.db"
                  2⤵
                    PID:1564
                  • C:\Windows\SysWOW64\cmd.exe
                    C:\Windows\system32\cmd.exe /c copy /Y "C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles/faxxuvis.Admin\formhistory.sqlite" "C:\Users\Admin\AppData\Local\Temp\6644\_Firefox\formhistory.sqlite"
                    2⤵
                      PID:1852
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /c copy /Y "C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles/faxxuvis.Admin\cookies.sqlite" "C:\Users\Admin\AppData\Local\Temp\6644\_Firefox\cookies.sqlite"
                      2⤵
                        PID:968
                      • C:\Windows\SysWOW64\cmd.exe
                        C:\Windows\system32\cmd.exe /c copy /Y "C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles/faxxuvis.Admin\signons.sqlite" "C:\Users\Admin\AppData\Local\Temp\6644\_Firefox\signons.sqlite"
                        2⤵
                          PID:1572
                        • C:\Windows\SysWOW64\cmd.exe
                          C:\Windows\system32\cmd.exe /c copy /Y "C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles/faxxuvis.Admin\logins.json" "C:\Users\Admin\AppData\Local\Temp\6644\_Firefox\logins.json"
                          2⤵
                            PID:1556
                          • C:\Windows\SysWOW64\cmd.exe
                            C:\Windows\system32\cmd.exe /c copy /Y "C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles/faxxuvis.Admin\key3.db" "C:\Users\Admin\AppData\Local\Temp\6644\_Firefox\key3.db"
                            2⤵
                              PID:1656
                            • C:\Windows\SysWOW64\cmd.exe
                              C:\Windows\system32\cmd.exe /c copy /Y "C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles/faxxuvis.Admin\key4.db" "C:\Users\Admin\AppData\Local\Temp\6644\_Firefox\key4.db"
                              2⤵
                                PID:1180

                            Network

                            MITRE ATT&CK Matrix ATT&CK v6

                            Defense Evasion

                            Virtualization/Sandbox Evasion

                            1
                            T1497

                            Credential Access

                            Credentials in Files

                            2
                            T1081

                            Discovery

                            Query Registry

                            3
                            T1012

                            Virtualization/Sandbox Evasion

                            1
                            T1497

                            System Information Discovery

                            3
                            T1082

                            Collection

                            Data from Local System

                            2
                            T1005

                            Replay Monitor

                            Loading Replay Monitor...

                            Downloads

                            • C:\Users\Admin\AppData\Local\Temp\6644\_Chrome\default_cookies.db
                              MD5

                              055c8c5c47424f3c2e7a6fc2ee904032

                              SHA1

                              5952781d22cff35d94861fac25d89a39af6d0a87

                              SHA256

                              531b3121bd59938df4933972344d936a67e75d8b1741807a8a51c898d185dd2a

                              SHA512

                              c2772893695f49cb185add62c35284779b20d45adc01184f1912613fa8b2d70c8e785f0d7cfa3bfaf1d2d58e7cdc74f4304fd973a956601927719d6d370dd57a

                            • C:\Users\Admin\AppData\Local\Temp\6644\_Chrome\default_logins.db
                              MD5

                              b608d407fc15adea97c26936bc6f03f6

                              SHA1

                              953e7420801c76393902c0d6bb56148947e41571

                              SHA256

                              b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf

                              SHA512

                              cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4

                            • C:\Users\Admin\AppData\Local\Temp\6644\_Chrome\default_webdata.db
                              MD5

                              8ee018331e95a610680a789192a9d362

                              SHA1

                              e1fba0ac3f3d8689acf6c2ee26afdfd0c8e02df9

                              SHA256

                              94354ea6703c5ef5fa052aeb1d29715587d80300858ebc063a61c02b7e6e9575

                              SHA512

                              4b89b5adc77641e497eda7db62a48fee7b4b8dda83bff637cac850645d31deb93aafee5afeb41390e07fd16505a63f418b6cb153a1d35777c483e2d6d3f783b4

                            • C:\Users\Admin\AppData\Local\Temp\6644\_Files\DismountBackup.txt
                              MD5

                              8c40fa90dfcaace26fc7e7a042cc24fc

                              SHA1

                              829ebd32313afbf4552673c33eb39a8a5484dbb5

                              SHA256

                              dadd1db444824987b4ebc8195baf83a9dc751a718185cc1cd0e5199e956465f0

                              SHA512

                              9f3c97febfe3c192e54c3e68edfd486e0c0a3218867cfcae85194bad487cafdf8bdbe4f1a98a348c7a09b00dc504179c1235ae6f51f0bece4d9657f97bc1b283

                            • memory/1208-62-0x0000000000980000-0x0000000001242000-memory.dmp
                              Filesize

                              8.8MB

                            • memory/1208-66-0x0000000000960000-0x0000000000961000-memory.dmp
                              Filesize

                              4KB

                            • memory/1208-60-0x0000000000980000-0x0000000001242000-memory.dmp
                              Filesize

                              8.8MB

                            • memory/1208-61-0x0000000000980000-0x0000000001242000-memory.dmp
                              Filesize

                              8.8MB

                            • memory/1208-54-0x0000000075CC1000-0x0000000075CC3000-memory.dmp
                              Filesize

                              8KB

                            • memory/1208-63-0x0000000000980000-0x0000000001242000-memory.dmp
                              Filesize

                              8.8MB

                            • memory/1208-65-0x0000000000970000-0x0000000000971000-memory.dmp
                              Filesize

                              4KB

                            • memory/1208-59-0x0000000000980000-0x0000000001242000-memory.dmp
                              Filesize

                              8.8MB

                            • memory/1208-64-0x00000000008D0000-0x00000000008D1000-memory.dmp
                              Filesize

                              4KB

                            • memory/1208-67-0x0000000001350000-0x0000000001351000-memory.dmp
                              Filesize

                              4KB

                            • memory/1208-58-0x0000000000980000-0x0000000001242000-memory.dmp
                              Filesize

                              8.8MB

                            • memory/1208-56-0x0000000000980000-0x0000000001242000-memory.dmp
                              Filesize

                              8.8MB

                            • memory/1208-57-0x0000000077450000-0x00000000775D0000-memory.dmp
                              Filesize

                              1.5MB

                            • memory/1208-55-0x0000000000980000-0x0000000001242000-memory.dmp
                              Filesize

                              8.8MB

                            • memory/1208-72-0x0000000003080000-0x0000000003081000-memory.dmp
                              Filesize

                              4KB