Analysis

  • max time kernel
    150s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    30-04-2024 01:42

General

  • Target

    a44d817c29c97f1418de7f456bd7609c37c774e90f83947b317260a87c48bedd.exe

  • Size

    23.2MB

  • MD5

    aabdecc74290221f555bc6400ceef5c6

  • SHA1

    6bf8559dfd409bee873f4e147f31ce313d23f2bc

  • SHA256

    a44d817c29c97f1418de7f456bd7609c37c774e90f83947b317260a87c48bedd

  • SHA512

    880d741faf049b9276c4ab10e6e3a0817ef28cb05f0e00fa3edf814ebf545d3d316dfac022fcff4b8fee9f95e18542e2cf7e89f02702e30409409f40a5fb6bbe

  • SSDEEP

    393216:+/NvciCzO7XohRMU0K611YKvcg7dSVqMXDVZm/3hL1/VYs0tvj1Q3QJrSZ0aP54d:+1ciC6ohRMPK6gKzRctVZmf//VYRtvjR

Malware Config

Signatures

  • Detects Mimic ransomware 1 IoCs
  • Mimic

    Ransomware family was first exploited in the wild in 2022.

  • Modifies security service 2 TTPs 1 IoCs
  • Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 1 IoCs
  • Detects command variations typically used by ransomware 1 IoCs
  • Detects executables containing anti-forensic artifacts of deleting USN change journal. Observed in ransomware 1 IoCs
  • Detects executables containing commands for clearing Windows Event Logs 1 IoCs
  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
  • Renames multiple (6742) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Deletes System State backups 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

  • Sets file execution options in registry 2 TTPs 64 IoCs
  • Executes dropped EXE 9 IoCs
  • Loads dropped DLL 22 IoCs
  • Modifies system executable filetype association 2 TTPs 10 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 64 IoCs

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

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 19 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 53 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 6 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\a44d817c29c97f1418de7f456bd7609c37c774e90f83947b317260a87c48bedd.exe
    "C:\Users\Admin\AppData\Local\Temp\a44d817c29c97f1418de7f456bd7609c37c774e90f83947b317260a87c48bedd.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2208
    • C:\tempenc\encrypt.exe
      "C:\tempenc\encrypt.exe" -e all -sd -crc
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Modifies system executable filetype association
      • Adds Run key to start application
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1656
      • C:\Users\Admin\AppData\Local\encrypt\encrypt.exe
        "C:\Users\Admin\AppData\Local\encrypt\encrypt.exe" -e all -sd -crc
        3⤵
        • Modifies security service
        • Sets file execution options in registry
        • Executes dropped EXE
        • Loads dropped DLL
        • Modifies system executable filetype association
        • Adds Run key to start application
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        • System policy modification
        PID:2516
        • C:\Users\Admin\AppData\Local\encrypt\encrypt.exe
          "C:\Users\Admin\AppData\Local\encrypt\encrypt.exe" -e watch -pid 2516 -! -e all -sd -crc
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of AdjustPrivilegeToken
          PID:2148
        • C:\Users\Admin\AppData\Local\encrypt\encrypt.exe
          "C:\Users\Admin\AppData\Local\encrypt\encrypt.exe" -e ul1
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          PID:2292
        • C:\Users\Admin\AppData\Local\encrypt\encrypt.exe
          "C:\Users\Admin\AppData\Local\encrypt\encrypt.exe" -e ul2
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          PID:2564
        • C:\Users\Admin\AppData\Local\encrypt\Everything.exe
          "C:\Users\Admin\AppData\Local\encrypt\Everything.exe" -startup
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Enumerates connected drives
          • Suspicious use of SetWindowsHookEx
          PID:2940
          • C:\Users\Admin\AppData\Local\encrypt\Everything.exe
            "C:\Users\Admin\AppData\Local\encrypt\Everything.exe" -app-data
            5⤵
            • Executes dropped EXE
            PID:1964
        • C:\Windows\system32\powercfg.exe
          powercfg.exe -H off
          4⤵
            PID:1316
          • C:\Windows\system32\powercfg.exe
            powercfg.exe -SETACVALUEINDEX 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c 4f971e89-eebd-4455-a8de-9e59040e7347 7648efa3-dd9c-4e3e-b566-50f929386280 0
            4⤵
              PID:656
            • C:\Windows\system32\powercfg.exe
              powercfg.exe -SETACVALUEINDEX 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c 4f971e89-eebd-4455-a8de-9e59040e7347 96996bc0-ad50-47ec-923b-6f41874dd9eb 0
              4⤵
                PID:1960
              • C:\Windows\system32\powercfg.exe
                powercfg.exe -SETACVALUEINDEX 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c 4f971e89-eebd-4455-a8de-9e59040e7347 5ca83367-6e45-459f-a27b-476b1d01c936 0
                4⤵
                  PID:896
                • C:\Windows\system32\powercfg.exe
                  powercfg.exe -SETDCVALUEINDEX 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c 4f971e89-eebd-4455-a8de-9e59040e7347 7648efa3-dd9c-4e3e-b566-50f929386280 0
                  4⤵
                    PID:1532
                  • C:\Windows\system32\powercfg.exe
                    powercfg.exe -SETDCVALUEINDEX 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c 4f971e89-eebd-4455-a8de-9e59040e7347 96996bc0-ad50-47ec-923b-6f41874dd9eb 0
                    4⤵
                      PID:1748
                    • C:\Windows\system32\powercfg.exe
                      powercfg.exe -SETDCVALUEINDEX 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c 4f971e89-eebd-4455-a8de-9e59040e7347 5ca83367-6e45-459f-a27b-476b1d01c936 0
                      4⤵
                        PID:1552
                      • C:\Windows\system32\powercfg.exe
                        powercfg.exe -SETACVALUEINDEX e9a42b02-d5df-448d-aa00-03f14749eb61 4f971e89-eebd-4455-a8de-9e59040e7347 7648efa3-dd9c-4e3e-b566-50f929386280 0
                        4⤵
                          PID:1556
                        • C:\Windows\system32\powercfg.exe
                          powercfg.exe -SETACVALUEINDEX e9a42b02-d5df-448d-aa00-03f14749eb61 4f971e89-eebd-4455-a8de-9e59040e7347 96996bc0-ad50-47ec-923b-6f41874dd9eb 0
                          4⤵
                            PID:1660
                          • C:\Windows\system32\powercfg.exe
                            powercfg.exe -SETACVALUEINDEX e9a42b02-d5df-448d-aa00-03f14749eb61 4f971e89-eebd-4455-a8de-9e59040e7347 5ca83367-6e45-459f-a27b-476b1d01c936 0
                            4⤵
                              PID:1776
                            • C:\Windows\system32\powercfg.exe
                              powercfg.exe -SETDCVALUEINDEX e9a42b02-d5df-448d-aa00-03f14749eb61 4f971e89-eebd-4455-a8de-9e59040e7347 7648efa3-dd9c-4e3e-b566-50f929386280 0
                              4⤵
                                PID:2312
                              • C:\Windows\system32\powercfg.exe
                                powercfg.exe -SETDCVALUEINDEX e9a42b02-d5df-448d-aa00-03f14749eb61 4f971e89-eebd-4455-a8de-9e59040e7347 96996bc0-ad50-47ec-923b-6f41874dd9eb 0
                                4⤵
                                  PID:2128
                                • C:\Windows\system32\powercfg.exe
                                  powercfg.exe -SETDCVALUEINDEX e9a42b02-d5df-448d-aa00-03f14749eb61 4f971e89-eebd-4455-a8de-9e59040e7347 5ca83367-6e45-459f-a27b-476b1d01c936 0
                                  4⤵
                                    PID:884
                                  • C:\Windows\system32\powercfg.exe
                                    powercfg.exe -S 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c
                                    4⤵
                                      PID:1324
                                    • C:\Windows\system32\powercfg.exe
                                      powercfg.exe -S e9a42b02-d5df-448d-aa00-03f14749eb61
                                      4⤵
                                        PID:1972
                                      • C:\Windows\system32\bcdedit.exe
                                        bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures
                                        4⤵
                                        • Modifies boot configuration data using bcdedit
                                        PID:876
                                      • C:\Windows\system32\bcdedit.exe
                                        bcdedit.exe /set {default} recoveryenabled no
                                        4⤵
                                        • Modifies boot configuration data using bcdedit
                                        PID:2160
                                      • C:\Windows\system32\wbadmin.exe
                                        wbadmin.exe DELETE SYSTEMSTATEBACKUP
                                        4⤵
                                        • Deletes System State backups
                                        • Drops file in Windows directory
                                        PID:1772
                                      • C:\Windows\system32\wbadmin.exe
                                        wbadmin.exe delete catalog -quiet
                                        4⤵
                                        • Deletes backup catalog
                                        PID:2440
                                      • C:\Users\Admin\AppData\Local\encrypt\Everything.exe
                                        "C:\Users\Admin\AppData\Local\encrypt\Everything.exe" -startup
                                        4⤵
                                        • Executes dropped EXE
                                        • Enumerates connected drives
                                        • Suspicious use of SetWindowsHookEx
                                        PID:2636
                                      • C:\Windows\SysWOW64\notepad.exe
                                        notepad.exe "C:\Users\Admin\AppData\Local\HACKLENDINIZ.txt"
                                        4⤵
                                        • Opens file in notepad (likely ransom note)
                                        PID:2408
                                      • C:\Users\Admin\AppData\Local\encrypt\sdel64.exe
                                        "C:\Users\Admin\AppData\Local\encrypt\sdel64.exe" -accepteula -p 3 -c C:\
                                        4⤵
                                        • Executes dropped EXE
                                        PID:1960
                                • C:\Windows\system32\vssvc.exe
                                  C:\Windows\system32\vssvc.exe
                                  1⤵
                                    PID:1352
                                  • C:\Windows\system32\wbengine.exe
                                    "C:\Windows\system32\wbengine.exe"
                                    1⤵
                                      PID:2812
                                    • C:\Windows\System32\vdsldr.exe
                                      C:\Windows\System32\vdsldr.exe -Embedding
                                      1⤵
                                        PID:2820
                                      • C:\Windows\System32\vds.exe
                                        C:\Windows\System32\vds.exe
                                        1⤵
                                          PID:2360

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

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                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Everything\Everything.db

                                          Filesize

                                          9.3MB

                                          MD5

                                          828a3d4667743d8a82a78d65f3f82151

                                          SHA1

                                          ea6354954f4dda411f5f4c11a691eeb8157df340

                                          SHA256

                                          83a9f6138d1b02378099345da3fde4a089c32e1a943573a5182df032ab5458e9

                                          SHA512

                                          31163723a29a3d6f4d38875336a475bf6c78f4340212d4bc324e45e5244d825459825f49855c5b553e1fbc098d90357f03a290e803530afe7d61511527450e01

                                        • C:\Users\Admin\AppData\Local\HACKLENDINIZ.txt

                                          Filesize

                                          1KB

                                          MD5

                                          f9b6ac9b419e1595984a40d5cb4c2aa8

                                          SHA1

                                          3431a55631e88a2b2982c1d39955f4aca6bc83fd

                                          SHA256

                                          bc6d6fedb065aa657a1af7e40cc589da1bceabb09ca6d8854172e4cca664cd1a

                                          SHA512

                                          e1493ae840bb960031445a2b3560350374c5d0b84eac1cd6634d6b391d95fe542e0463e1bb7e13f9a59c62ad0c2d9856334291821b97973f8550c1985c0e953c

                                        • C:\Users\Admin\AppData\Local\encrypt\Everything.db

                                          Filesize

                                          9.3MB

                                          MD5

                                          74c097be723d7faf70f06a38a2dc0565

                                          SHA1

                                          a6a52460afaafa62cad43efb30d7b6f5868cec26

                                          SHA256

                                          a3a768174b09e6d56fee80d6e0b44af0e4e526fff678315e9756b3d0c4571041

                                          SHA512

                                          7549abafd8f1d3547999edffa2d018cfba4a7b397dff2d339bb6ef2e4c810607091aebf89bcaffbfa9838819d05c9193f31dedf7006373f31428afdc8da78bdc

                                        • C:\Users\Admin\AppData\Local\encrypt\Everything.ini.tmp

                                          Filesize

                                          20KB

                                          MD5

                                          7041a21e555cf31b0ca891d7e9b08c9c

                                          SHA1

                                          5ed26f24b7b793f21747dc974abbd6927942495a

                                          SHA256

                                          8bab2afcb05e2f59fbcc954e33d558afa6fbccd93cb6d51c40dc062cf7685f04

                                          SHA512

                                          51ff4408e56db410c3e29296c0cbb167a8caf36041656802c68773d7d519f87af6155220ea11f25231c80c738cddd5f747b44d43ad332aca10edbd67870596ed

                                        • C:\Users\Admin\AppData\Local\encrypt\Everything.ini.tmp

                                          Filesize

                                          215B

                                          MD5

                                          d1f6937ee22c4c2a33cdc7c76f4a5ab6

                                          SHA1

                                          eda5a1e7ec1036ae9805567bb36e4fbe57b5c262

                                          SHA256

                                          905fbc87bb075de3106631b4cc6973110b175bd607e728ca28e637232d438e75

                                          SHA512

                                          a8f7ccc6d6deed765dedccbd81bfedfca1d0c8ce4085d484ea98c432a7096a0f5ad08d2e934f6f8d28f35a55c879cb3e6e35a7127149f82ae7061c174ecc59c3

                                        • C:\temp\hashlist.txt

                                          Filesize

                                          1.8MB

                                          MD5

                                          0064f7f6c81b95b24353f1310b3e3ed5

                                          SHA1

                                          38e893fd60d11bf674319177e6e8cdfc3a2b7215

                                          SHA256

                                          424f12cf2957937e1aa8fea6d5b2380780c89b6271f52d729b9fcafe0a5334d3

                                          SHA512

                                          81972839f6762d6cc6b40b67826c1248466732f10ab8104ed60c816c27fe63a304636ecceebc02fe228372a54b10db01f8fa4ea65569e81634366066e5004a21

                                        • C:\tempenc\7za.exe

                                          Filesize

                                          772KB

                                          MD5

                                          b93eb0a48c91a53bda6a1a074a4b431e

                                          SHA1

                                          ac693a14c697b1a8ee80318e260e817b8ee2aa86

                                          SHA256

                                          ab15a9b27ee2d69a8bc8c8d1f5f40f28cd568f5cbb28d36ed938110203f8d142

                                          SHA512

                                          732cb0dcb2b1dac1a7462554c256cec27de243734f79b7f87026e9f5fbae6d5d8a5f14a702d2af0b65897b6abad70a9eff1905dc851ce267d221ddcdd9e640c5

                                        • C:\tempenc\Everything.db

                                          Filesize

                                          47.4MB

                                          MD5

                                          6e2bd9da8e4aa5ea5a4ca236bffbff2a

                                          SHA1

                                          0019332594d0ef67300c3257a2d6c708ffed53a6

                                          SHA256

                                          12921122de3b5525aab45bec5e7e0974e5da57914693bba12d5f6234f9e508a9

                                          SHA512

                                          0405a1ee08b7f9cdd068df78d7630f187349a75d80cb54952a8f0e1c5693dba6166db0ca469ee3c2d4025bffabe605ebb926a081aa9f3a23a86fe91eb84f6c46

                                        • C:\tempenc\Everything.exe

                                          Filesize

                                          1.7MB

                                          MD5

                                          c44487ce1827ce26ac4699432d15b42a

                                          SHA1

                                          8434080fad778057a50607364fee8b481f0feef8

                                          SHA256

                                          4c83e46a29106afbaf5279029d102b489d958781764289b61ab5b618a4307405

                                          SHA512

                                          a0ea698333c21e59b5bc79d79ff39d185a019cede394dbd8b2eb72c4230001685a90098a691c296aeab27db6751eef56c4261cf00f790de2e9e9efc0e7f7c808

                                        • C:\tempenc\Everything.ini

                                          Filesize

                                          20KB

                                          MD5

                                          f76c7e0522feac7f22bf8d1dbe42b50c

                                          SHA1

                                          eeac2e325dae17242a993f4be748b4f8b0aabed6

                                          SHA256

                                          d2bda99bfdadb5e0a9464d841f66c28891c67382e6c044b8e14aa46923601326

                                          SHA512

                                          96726be1bf168ae9be28e01f0dfc0c3b611c4d842de90ca71d009aa259f7d273bc094d34f2f7c7e1a6aa06b656d3d192baaac2c39c591610e428bc999132be2b

                                        • C:\tempenc\Everything2.ini

                                          Filesize

                                          550B

                                          MD5

                                          51014c0c06acdd80f9ae4469e7d30a9e

                                          SHA1

                                          204e6a57c44242fad874377851b13099dfe60176

                                          SHA256

                                          89ad2164717bd5f5f93fbb4cebf0efeb473097408fddfc7fc7b924d790514dc5

                                          SHA512

                                          79b5e2727cce5cd9f6d2e886f93b22b72ec0ad4a6b9ad47205d7cf283606280665ead729ab3921d7e84409cfc09a94e749a68918130f0172856626f5f7af010c

                                        • C:\tempenc\Everything64.dll

                                          Filesize

                                          2.1MB

                                          MD5

                                          d02d7dc907d19d2e448368d433baebfe

                                          SHA1

                                          d66616386e968ddb4661a9f9c1ef8c63403ba8f8

                                          SHA256

                                          816fe96f0fff9475069d14cff51def4b823e1423c1aa464961ee6a61f7a62200

                                          SHA512

                                          8cf776ec9332fcff9a6a080f39a6c734df4ccfb9bf405232f00d967d80ff4968c248077d90a7eff368ae3d7ac0edc8f504596212bf176364bb5ae37532c7969b

                                        • C:\tempenc\sdel.exe

                                          Filesize

                                          350KB

                                          MD5

                                          803df907d936e08fbbd06020c411be93

                                          SHA1

                                          4aa4b498ae037a2b0479659374a5c3af5f6b8d97

                                          SHA256

                                          e8eaa39e2adfd49ab69d7bb8504ccb82a902c8b48fbc256472f36f41775e594c

                                          SHA512

                                          5b9c44b4ed68b632360c66b35442722d2797807c88555c9fde9c176581d410e4f6ed433fabdcd9ee614db458158e6055a9f7f526ebfbc8e7f5f3d388f5de4532

                                        • C:\tempenc\sdel64.exe

                                          Filesize

                                          448KB

                                          MD5

                                          e2114b1627889b250c7fd0425ba1bd54

                                          SHA1

                                          97412dba3cbeb0125c71b7b2ab194ea2fdff51b2

                                          SHA256

                                          5434dfdb731238edcb07a8c3a83594791536dda7a63c29f19be7bb1d59aedd60

                                          SHA512

                                          76ca5f677bc8ee1485f3d5b028b3a91f74344e9ff7af3c62a98e737a9888bd35389b3e6bf7b8b67747e0f64e1c973c0708864f12de1388b95f5c31b4e084e2e1

                                        • C:\tempenc\session.tmp

                                          Filesize

                                          32B

                                          MD5

                                          5d52bf0ad56a46b3ec3f0f0cdae0c74e

                                          SHA1

                                          128b12c7f5432fa1280eb4d74c4242fa49732f6c

                                          SHA256

                                          09c09be4e16f8e9b1ac66e62766affc2a40801dd071a14f073089ac497fe5c48

                                          SHA512

                                          abaf7f21d9956b59dea8d761e854a1f67cf7f201c94c5cfae372da6c0da518be45f6d3b31f75e3ac55670ec1a1b5bad49b3e8d3a82fe132413f3761ac1d69f33

                                        • \tempenc\Everything32.dll

                                          Filesize

                                          84KB

                                          MD5

                                          3b03324537327811bbbaff4aafa4d75b

                                          SHA1

                                          1218bd8165a2e0ec56a88b5a8bb4b27e52b564e7

                                          SHA256

                                          8cae8a9740d466e17f16481e68de9cbd58265863c3924d66596048edfd87e880

                                          SHA512

                                          ba5312e1836bac0bb05b133b2b938be98b28646c8b8fc45804d7f252cd2e1a191667bfa8ba979bf2a07d49053114234b78cca83ef28aecf105d7169a3ec3dc62

                                        • \tempenc\encrypt.exe

                                          Filesize

                                          3.0MB

                                          MD5

                                          a48ee000e248741247c24dc70fa2f936

                                          SHA1

                                          4c814fe7c94e6fb4d1d89cdae7e6e83905c459d7

                                          SHA256

                                          bb28adc32ff1b9dcfaac6b7017b4896d2807b48080f9e6720afde3f89d69676c

                                          SHA512

                                          8bdd60732bf105b9ade5d4dbc5c722a866119e0a284692afc1bd5b530a4afc3954536a14946a87f72213c92020def2ac7b5c1cbcc51b6e0ad5671b7c58543f34