Analysis

  • max time kernel
    300s
  • max time network
    295s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    05/08/2024, 08:21

General

  • Target

    Yuf.exe

  • Size

    286KB

  • MD5

    32d9327d26c740c6b0f6b41dd9856402

  • SHA1

    21dc727efa2913a4ef39fdbf0dd6af29bad7631a

  • SHA256

    04c35fe9de1d6695430f15073b5dd032e3cb2f0e3b530adeccae2603caa6ef70

  • SHA512

    0857a55c20026121f6f7e252dd66ca92af0eb53e12c3304d9b85071ffa1300fff5d85bf1234707aba306f02429ade9ab2673e92c5f8b83d4e9e222893f65f8fa

  • SSDEEP

    6144:2rb35tSguKV5BwUnZqazMhD9RLJt88sndcP8pPyDvUGOksvb:2X5tuKLBwiZlzMB9xgndcP88DvvP

Score
10/10

Malware Config

Extracted

Family

xworm

C2

done-declared.gl.at.ply.gg:43143

Attributes
  • install_file

    game.exe

Signatures

  • Detect Xworm Payload 2 IoCs
  • Modifies security service 2 TTPs 2 IoCs
  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Drops file in System32 directory 18 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 3 IoCs
  • Checks processor information in registry 2 TTPs 12 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 64 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.

Processes

  • C:\Windows\system32\winlogon.exe
    winlogon.exe
    1⤵
      PID:432
      • C:\Windows\System32\dllhost.exe
        C:\Windows\System32\dllhost.exe /Processid:{139a92c3-1ae7-481b-aa8d-b92f051f8f39}
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2180
    • C:\Windows\system32\services.exe
      C:\Windows\system32\services.exe
      1⤵
        PID:476
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k DcomLaunch
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:608
          • C:\Windows\system32\DllHost.exe
            C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
            3⤵
              PID:548
            • C:\Windows\system32\wbem\wmiprvse.exe
              C:\Windows\system32\wbem\wmiprvse.exe -Embedding
              3⤵
                PID:1168
              • C:\Windows\system32\wbem\wmiprvse.exe
                C:\Windows\system32\wbem\wmiprvse.exe -secured -Embedding
                3⤵
                • Checks processor information in registry
                PID:2480
              • C:\Windows\system32\wbem\wmiprvse.exe
                C:\Windows\system32\wbem\wmiprvse.exe -secured -Embedding
                3⤵
                • Checks processor information in registry
                PID:1360
            • C:\Windows\system32\svchost.exe
              C:\Windows\system32\svchost.exe -k RPCSS
              2⤵
                PID:688
              • C:\Windows\System32\svchost.exe
                C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
                2⤵
                • Modifies security service
                PID:772
              • C:\Windows\System32\svchost.exe
                C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
                2⤵
                  PID:832
                  • C:\Windows\system32\Dwm.exe
                    "C:\Windows\system32\Dwm.exe"
                    3⤵
                      PID:1144
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k netsvcs
                    2⤵
                    • Drops file in System32 directory
                    • Suspicious use of AdjustPrivilegeToken
                    • Suspicious use of WriteProcessMemory
                    PID:868
                    • C:\Windows\system32\wbem\WMIADAP.EXE
                      wmiadap.exe /F /T /R
                      3⤵
                      • Drops file in System32 directory
                      • Drops file in Windows directory
                      PID:2016
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k LocalService
                    2⤵
                      PID:984
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k NetworkService
                      2⤵
                        PID:292
                      • C:\Windows\System32\spoolsv.exe
                        C:\Windows\System32\spoolsv.exe
                        2⤵
                          PID:1028
                        • C:\Windows\system32\taskhost.exe
                          "taskhost.exe"
                          2⤵
                            PID:1084
                          • C:\Windows\system32\svchost.exe
                            C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
                            2⤵
                              PID:1152
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
                              2⤵
                                PID:2088
                              • C:\Windows\system32\sppsvc.exe
                                C:\Windows\system32\sppsvc.exe
                                2⤵
                                  PID:2436
                              • C:\Windows\system32\lsass.exe
                                C:\Windows\system32\lsass.exe
                                1⤵
                                • Suspicious use of WriteProcessMemory
                                PID:492
                              • C:\Windows\system32\lsm.exe
                                C:\Windows\system32\lsm.exe
                                1⤵
                                  PID:500
                                • C:\Windows\Explorer.EXE
                                  C:\Windows\Explorer.EXE
                                  1⤵
                                  • Suspicious behavior: GetForegroundWindowSpam
                                  PID:1196
                                  • C:\Users\Admin\AppData\Local\Temp\Yuf.exe
                                    "C:\Users\Admin\AppData\Local\Temp\Yuf.exe"
                                    2⤵
                                    • Suspicious use of NtCreateUserProcessOtherParentProcess
                                    • Suspicious use of SetThreadContext
                                    • Suspicious behavior: EnumeratesProcesses
                                    • Suspicious use of AdjustPrivilegeToken
                                    • Suspicious use of WriteProcessMemory
                                    PID:2144
                                    • C:\Windows\system32\SCHTASKS.exe
                                      "SCHTASKS.exe" /create /tn "$77Yuf.exe" /tr "'C:\Users\Admin\AppData\Local\Temp\Yuf.exe'" /sc onlogon /rl HIGHEST
                                      3⤵
                                      • Scheduled Task/Job: Scheduled Task
                                      PID:1236
                                    • C:\Windows\system32\SCHTASKS.exe
                                      "SCHTASKS.exe" /create /tn "$77Yuf.exe" /tr "'C:\Users\Admin\AppData\Local\Temp\Yuf.exe'" /sc onlogon /rl HIGHEST
                                      3⤵
                                      • Scheduled Task/Job: Scheduled Task
                                      PID:2820
                                • C:\Windows\system32\conhost.exe
                                  \??\C:\Windows\system32\conhost.exe "-1413673060-2277440086824085811422661926-35965522916257308501604392960-620512551"
                                  1⤵
                                    PID:2420
                                  • C:\Windows\system32\conhost.exe
                                    \??\C:\Windows\system32\conhost.exe "-1288581846544961144808398764-1808177574-315033151-1040784780-20871466541471214872"
                                    1⤵
                                      PID:2512

                                    Network

                                    MITRE ATT&CK Enterprise v15

                                    Replay Monitor

                                    Loading Replay Monitor...

                                    Downloads

                                    • C:\Windows\System32\perfc007.dat

                                      Filesize

                                      141KB

                                      MD5

                                      0f3d76321f0a7986b42b25a3aa554f82

                                      SHA1

                                      7036bba62109cc25da5d6a84d22b6edb954987c0

                                      SHA256

                                      dfad62e3372760d303f7337fe290e4cb28e714caadd3c59294b77968d81fe460

                                      SHA512

                                      bb02a3f14d47d233fbda046f61bbf5612ebc6213b156af9c47f56733a03df1bb484d1c3576569eb4499d7b378eb01f4d6e906c36c6f71738482584c2e84b47d0

                                    • C:\Windows\System32\perfc00A.dat

                                      Filesize

                                      150KB

                                      MD5

                                      540138285295c68de32a419b7d9de687

                                      SHA1

                                      1cf6a2a0f53f0516ff9fe5ac733dbb5a9255ae56

                                      SHA256

                                      33867c52f756f2b0f645f4bd503c65969d73676dcb14e6a6fdb2ffb11c7562eb

                                      SHA512

                                      7c17c10d4b6165aa0c208811dc6d98e2f4e75e3da1cc2313cc7da9d657626beb3e4ec00b07b71376a7c549725d40db20d8952753e70acc86e87a8390e224a64a

                                    • C:\Windows\System32\perfc00C.dat

                                      Filesize

                                      141KB

                                      MD5

                                      831dbe568992299e589143ee8898e131

                                      SHA1

                                      737726173aab8b76fe1f98104d72bb91abd273bf

                                      SHA256

                                      4f22ef1625fb2a2370779d0992f80b8e5e5da8dc727aa99ade152044d28e9405

                                      SHA512

                                      39015d29d593c9df59cdafbff95a6ddc000a5dbf767665b65f8ec65751e70315918c93d3583b922d32e9b6261b8c07023da660098ca79c5420b782c150b5c139

                                    • C:\Windows\System32\perfc010.dat

                                      Filesize

                                      142KB

                                      MD5

                                      d73172c6cb697755f87cd047c474cf91

                                      SHA1

                                      abc5c7194abe32885a170ca666b7cce8251ac1d6

                                      SHA256

                                      9de801eebbe32699630f74082c9adea15069acd5afb138c9ecd5d4904e3cdc57

                                      SHA512

                                      7c9e4126bed6bc94a211281eed45cee30452519f125b82b143f78da32a3aac72d94d31757e1da22fb2f8a25099ffddec992e2c60987efb9da9b7a17831eafdf6

                                    • C:\Windows\System32\perfc011.dat

                                      Filesize

                                      114KB

                                      MD5

                                      1f998386566e5f9b7f11cc79254d1820

                                      SHA1

                                      e1da5fe1f305099b94de565d06bc6f36c6794481

                                      SHA256

                                      1665d97fb8786b94745295feb616a30c27af84e8a5e1d25cd1bcaf70723040ea

                                      SHA512

                                      a7c9702dd5833f4d6d27ce293efb9507948a3b05db350fc9909af6a48bd649c7578f856b4d64d87df451d0efbe202c62da7fffcac03b3fe72c7caaea553de75f

                                    • C:\Windows\System32\perfh007.dat

                                      Filesize

                                      668KB

                                      MD5

                                      5026297c7c445e7f6f705906a6f57c02

                                      SHA1

                                      4ec3b66d44b0d44ec139bd1475afd100748f9e91

                                      SHA256

                                      506d3bec72805973df3b2e11aba4d074aeb4b26b7335536e79ea1145108817cc

                                      SHA512

                                      5be8e51ecacda465b905df3e38ac114240d8fa6bae5bb17e8e53a87630454b57514ca0abbd8afefd798d450cd4ee89caf4391eeb837ced384260c188482fb48d

                                    • C:\Windows\System32\perfh009.dat

                                      Filesize

                                      634KB

                                      MD5

                                      1c678ee06bd02b5d9e4d51c3a4ec2d2b

                                      SHA1

                                      90aa7fdfaaa37fb4f2edfc8efc3994871087dedb

                                      SHA256

                                      2d168ab31836a08d8ca00aab9685f040aac4052a7f10fbbf0c28e9f880a79dd3

                                      SHA512

                                      ec665d7a20f27b2a0fe2475883009c6d34615cc2046d096de447ef57bcac9da0ae842be0556f5736f42d9c1c601fb8629896a2444990e508f7c573165088ab32

                                    • C:\Windows\System32\perfh00A.dat

                                      Filesize

                                      727KB

                                      MD5

                                      7d0bac4e796872daa3f6dc82c57f4ca8

                                      SHA1

                                      b4f6bbe08fa8cd0784a94ac442ff937a3d3eea0a

                                      SHA256

                                      ce2ef9fc248965f1408d4b7a1e6db67494ba07a7bbdfa810418b30be66ad5879

                                      SHA512

                                      145a0e8543e0d79fe1a5ce268d710c807834a05da1e948f84d6a1818171cd4ef077ea44ba1fe439b07b095721e0109cbf7e4cfd7b57519ee44d9fd9fe1169a3e

                                    • C:\Windows\System32\perfh00C.dat

                                      Filesize

                                      727KB

                                      MD5

                                      5f684ce126de17a7d4433ed2494c5ca9

                                      SHA1

                                      ce1a30a477daa1bac2ec358ce58731429eafe911

                                      SHA256

                                      2e2ba0c47e71991d646ec380cde47f44318d695e6f3f56ec095955a129af1c2c

                                      SHA512

                                      4d0c2669b5002da14d44c21dc2f521fb37b6b41b61bca7b2a9af7c03f616dda9ca825f79a81d3401af626a90017654f9221a6ccc83010ff73de71967fc2f3f5b

                                    • C:\Windows\System32\perfh010.dat

                                      Filesize

                                      722KB

                                      MD5

                                      4623482c106cf6cc1bac198f31787b65

                                      SHA1

                                      5abb0decf7b42ef5daf7db012a742311932f6dad

                                      SHA256

                                      eceda45aedbf6454b79f010c891bead3844d43189972f6beeb5ccddb13cc0349

                                      SHA512

                                      afecefcec652856dd8b4275f11d75a68a582337b682309c4b61fd26ed7038b92e6b9aa72c1bfc350ce2caf5e357098b54eb1e448a4392960f9f82e01c447669f

                                    • C:\Windows\System32\perfh011.dat

                                      Filesize

                                      406KB

                                      MD5

                                      54c674d19c0ff72816402f66f6c3d37c

                                      SHA1

                                      2dcc0269545a213648d59dc84916d9ec2d62a138

                                      SHA256

                                      646d4ea2f0670691aa5b998c26626ede7623886ed3ac9bc9679018f85e584bb5

                                      SHA512

                                      4d451e9bef2c451cb9e86c7f4d705be65787c88df5281da94012bfbe5af496718ec3e48099ec3dff1d06fee7133293f10d649866fe59daa7951aebe2e5e67c1f

                                    • C:\Windows\System32\wbem\Performance\WmiApRpl.h

                                      Filesize

                                      3KB

                                      MD5

                                      b133a676d139032a27de3d9619e70091

                                      SHA1

                                      1248aa89938a13640252a79113930ede2f26f1fa

                                      SHA256

                                      ae2b6236d3eeb4822835714ae9444e5dcd21bc60f7a909f2962c43bc743c7b15

                                      SHA512

                                      c6b99e13d854ce7a6874497473614ee4bd81c490802783db1349ab851cd80d1dc06df8c1f6e434aba873a5bbf6125cc64104709064e19a9dc1c66dcde3f898f5

                                    • C:\Windows\System32\wbem\Performance\WmiApRpl.ini

                                      Filesize

                                      27KB

                                      MD5

                                      46d08e3a55f007c523ac64dce6dcf478

                                      SHA1

                                      62edf88697e98d43f32090a2197bead7e7244245

                                      SHA256

                                      5b15b1fc32713447c3fbc952a0fb02f1fd78c6f9ac69087bdb240625b0282614

                                      SHA512

                                      b1f42e70c0ba866a9ed34eb531dbcbae1a659d7349c1e1a14b18b9e23d8cbd302d8509c6d3a28bc7509dd92e83bcb400201fb5d5a70f613421d81fe649d02e42

                                    • C:\Windows\system32\perfc009.dat

                                      Filesize

                                      118KB

                                      MD5

                                      b6a40d83e0fd90f0c9ba062102a8eb99

                                      SHA1

                                      d5b564584ea2b5eab4ddda1a225594d790cc585b

                                      SHA256

                                      0efde37b0dfcd63a634f9448fdfdfb9c689e7f28accaa063e7abfe5747c7a054

                                      SHA512

                                      7b4d6e842ce0433e965eb923f3359634494a735368a04832d85e5778c3a9590144e1c7cc0f336ac9a1208215838433dfb6ff5837c8494231989e3164c10d3f2c

                                    • C:\Windows\system32\perfh009.dat

                                      Filesize

                                      646KB

                                      MD5

                                      aecab86cc5c705d7a036cba758c1d7b0

                                      SHA1

                                      e88cf81fd282d91c7fc0efae13c13c55f4857b5e

                                      SHA256

                                      9bab92e274fcc0af88a7fdd143c9045b9d3a13cac2c00b63f00b320128dcc066

                                      SHA512

                                      e0aa8da41373fc64d0e3dc86c9e92a9dd5232f6bcae42dfe6f79012d7e780de85511a9ec6941cb39476632972573a18063d3ecd8b059b1d008d34f585d9edbe8

                                    • memory/432-179-0x0000000000CF0000-0x0000000000D1A000-memory.dmp

                                      Filesize

                                      168KB

                                    • memory/432-23-0x0000000000CF0000-0x0000000000D1A000-memory.dmp

                                      Filesize

                                      168KB

                                    • memory/476-16-0x0000000000180000-0x00000000001AA000-memory.dmp

                                      Filesize

                                      168KB

                                    • memory/476-20-0x000007FEBF390000-0x000007FEBF3A0000-memory.dmp

                                      Filesize

                                      64KB

                                    • memory/476-21-0x0000000037450000-0x0000000037460000-memory.dmp

                                      Filesize

                                      64KB

                                    • memory/476-176-0x0000000000180000-0x00000000001AA000-memory.dmp

                                      Filesize

                                      168KB

                                    • memory/476-178-0x0000000077461000-0x0000000077462000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/492-177-0x0000000000200000-0x000000000022A000-memory.dmp

                                      Filesize

                                      168KB

                                    • memory/492-24-0x000007FEBF390000-0x000007FEBF3A0000-memory.dmp

                                      Filesize

                                      64KB

                                    • memory/492-19-0x0000000000200000-0x000000000022A000-memory.dmp

                                      Filesize

                                      168KB

                                    • memory/500-182-0x0000000000860000-0x000000000088A000-memory.dmp

                                      Filesize

                                      168KB

                                    • memory/772-37-0x0000000000D20000-0x0000000000D43000-memory.dmp

                                      Filesize

                                      140KB

                                    • memory/772-72-0x0000000000D50000-0x0000000000D7A000-memory.dmp

                                      Filesize

                                      168KB

                                    • memory/772-180-0x0000000000D50000-0x0000000000D7A000-memory.dmp

                                      Filesize

                                      168KB

                                    • memory/772-74-0x0000000037450000-0x0000000037460000-memory.dmp

                                      Filesize

                                      64KB

                                    • memory/772-73-0x000007FEBF390000-0x000007FEBF3A0000-memory.dmp

                                      Filesize

                                      64KB

                                    • memory/832-78-0x0000000037450000-0x0000000037460000-memory.dmp

                                      Filesize

                                      64KB

                                    • memory/832-77-0x000007FEBF390000-0x000007FEBF3A0000-memory.dmp

                                      Filesize

                                      64KB

                                    • memory/832-181-0x0000000000BF0000-0x0000000000C1A000-memory.dmp

                                      Filesize

                                      168KB

                                    • memory/832-38-0x0000000000BC0000-0x0000000000BE3000-memory.dmp

                                      Filesize

                                      140KB

                                    • memory/832-76-0x0000000000BF0000-0x0000000000C1A000-memory.dmp

                                      Filesize

                                      168KB

                                    • memory/2144-173-0x000007FEF5B20000-0x000007FEF650C000-memory.dmp

                                      Filesize

                                      9.9MB

                                    • memory/2144-4-0x00000000772F0000-0x000000007740F000-memory.dmp

                                      Filesize

                                      1.1MB

                                    • memory/2144-525-0x000000001B530000-0x000000001B5B0000-memory.dmp

                                      Filesize

                                      512KB

                                    • memory/2144-524-0x000007FEF5B20000-0x000007FEF650C000-memory.dmp

                                      Filesize

                                      9.9MB

                                    • memory/2144-523-0x000007FEF5B20000-0x000007FEF650C000-memory.dmp

                                      Filesize

                                      9.9MB

                                    • memory/2144-60-0x00000000004A0000-0x00000000004B2000-memory.dmp

                                      Filesize

                                      72KB

                                    • memory/2144-522-0x000007FEF5B23000-0x000007FEF5B24000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/2144-183-0x000000001B530000-0x000000001B5B0000-memory.dmp

                                      Filesize

                                      512KB

                                    • memory/2144-0-0x000007FEF5B23000-0x000007FEF5B24000-memory.dmp

                                      Filesize

                                      4KB

                                    • memory/2144-1-0x0000000001130000-0x000000000117E000-memory.dmp

                                      Filesize

                                      312KB

                                    • memory/2144-2-0x0000000000350000-0x000000000038E000-memory.dmp

                                      Filesize

                                      248KB

                                    • memory/2144-3-0x0000000077410000-0x00000000775B9000-memory.dmp

                                      Filesize

                                      1.7MB

                                    • memory/2180-174-0x0000000077411000-0x0000000077512000-memory.dmp

                                      Filesize

                                      1.0MB

                                    • memory/2180-7-0x0000000140000000-0x0000000140040000-memory.dmp

                                      Filesize

                                      256KB

                                    • memory/2180-5-0x0000000140000000-0x0000000140040000-memory.dmp

                                      Filesize

                                      256KB

                                    • memory/2180-175-0x0000000077410000-0x00000000775B9000-memory.dmp

                                      Filesize

                                      1.7MB

                                    • memory/2180-10-0x0000000140000000-0x0000000140040000-memory.dmp

                                      Filesize

                                      256KB

                                    • memory/2180-8-0x0000000077410000-0x00000000775B9000-memory.dmp

                                      Filesize

                                      1.7MB

                                    • memory/2180-9-0x00000000772F0000-0x000000007740F000-memory.dmp

                                      Filesize

                                      1.1MB