Analysis

  • max time kernel
    124s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    26/12/2022, 22:31

General

  • Target

    SecuriteInfo.com.Variant.Cerbu.153670.5493.22103.exe

  • Size

    1019KB

  • MD5

    99b88e9277ff6f32113f65e3b0c6988c

  • SHA1

    62b9017372aaae426eff41a1238cf1a95ed0f7b0

  • SHA256

    ed0e71d2830dca4a177ca15f4201d3a7ce24e1c895bc1bc1473384798c0626df

  • SHA512

    7d7421cef79288e8e8a37ff14b32f38f8794f04a50bbac5e64c6fb6a9eec640690de9a8c66dcb7594c8855bd36ec593427f577f8d3fa511c7991e5b956c135a0

  • SSDEEP

    24576:OgDFR9uKh5CHus+YhHFUV8mNY5iJ+MDLS3p6dRD+/EN:OgDFaKLCHus+Yhlk8mNYQJtDLcad+

Malware Config

Signatures

  • Blocklisted process makes network request 3 IoCs
  • Sets DLL path for service in the registry 2 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 34 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 18 IoCs

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

  • Modifies registry class 24 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Cerbu.153670.5493.22103.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Cerbu.153670.5493.22103.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1232
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\system32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\Qfyshwqueqdpai.tmp",Dioeeedresq
      2⤵
      • Blocklisted process makes network request
      • Sets DLL path for service in the registry
      • Sets service image path in registry
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Drops file in Program Files directory
      • Checks processor information in registry
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1228
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 14020
        3⤵
        • Modifies registry class
        • Suspicious use of FindShellTrayWindow
        PID:1680
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /End /tn \Microsoft\Windows\Wininet\CacheTask
        3⤵
          PID:1932
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks /Run /tn \Microsoft\Windows\Wininet\CacheTask
          3⤵
            PID:1612
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\SysWOW64\svchost.exe -k LocalService
        1⤵
        • Loads dropped DLL
        PID:904
        • C:\Windows\SysWOW64\rundll32.exe
          "C:\Windows\system32\rundll32.exe" "c:\program files (x86)\google\temp\helpmap.dll",XQZX
          2⤵
            PID:608

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • C:\ProgramData\{0222BCDE-1250-CD5F-F334-C7FEF4A3D675}\Default Programs.lnk

                Filesize

                1KB

                MD5

                168cef91b7fc013ee7ed16b8507aa29a

                SHA1

                7f3d736b8a7af4e125b535e4a565c94b4f913451

                SHA256

                7121cc4f24245fbdcf8d08ec8c4bae5af0563f795ae0c6494248f0a7b74d4fb2

                SHA512

                03899faaec47a13cf54f6ee06ef05da112c2c433b4f8c65a5f2a3c5d9d33cb7c33dfeecf3040c83b7ce74d2206e44175028e013c0425e10479c0e7ab59e2f4a7

              • C:\ProgramData\{0222BCDE-1250-CD5F-F334-C7FEF4A3D675}\Help_MKWD_AssetId.H1W

                Filesize

                229KB

                MD5

                c0ff478794c0e0e95c04332036782234

                SHA1

                05187b9381ac1df0ae1ab4a8746f3a4d8ed8f06a

                SHA256

                a206d8c382ef5fc79f1cc6e542d4cb8cb0f81d494d3b69a21cca5e203d342ceb

                SHA512

                f9e18b2cbe45eb31c9a13253dbd730791ec35c823a227bb5067cba45c19e205e65238d97ce1683536271bf7e320744b88b33ff8134c9cd832535e43cc845f36c

              • C:\ProgramData\{0222BCDE-1250-CD5F-F334-C7FEF4A3D675}\Help_MValidator.H1D

                Filesize

                14KB

                MD5

                b226a4b59c83ba36c282168c77a096fa

                SHA1

                0a4d68225f1426ed3a701fd96756e4a124c3e6b5

                SHA256

                dbf511e2d1d02fc2fd7b3ff1dae076adacb5e360eb7f8fc590226c267e04c821

                SHA512

                bd97740b97d441e0f303b49e62bbc6f0d8e2dcb85f56173dcc82e02c082eb3cf1c0014bf1a876c2db408e995287e94241653e37deadf06dee08de7415ee176e7

              • C:\ProgramData\{0222BCDE-1250-CD5F-F334-C7FEF4A3D675}\Help_MValidator.Lck

                Filesize

                4B

                MD5

                b485167c5b0e59d47009a16f90fe2659

                SHA1

                891ebccd5baa32daed16fb5a0825ca7a4464931f

                SHA256

                db44b8db4f05d720ef1a57abadeed0c164d47b17416c7dd7d136d8f10fba91c9

                SHA512

                665e3fcbd83b7876dd1dc7f34fadd8669debdfab8962bdce3b72b08139a75ef157c4f4c3b90ea9c1f20637bb4f2a29091d9186987d22c7d23428a2e7ccf80bd4

              • C:\ProgramData\{0222BCDE-1250-CD5F-F334-C7FEF4A3D675}\Ieohspdwyru.tmp

                Filesize

                3.5MB

                MD5

                d41df43f4b1285c23dd4688571477e3d

                SHA1

                2ad63808f68bd92fa2ab9f2b9324c234026abd01

                SHA256

                80de3fb32f87c3c6cdb6c5591003ce6bb22abc375dc78aed54da9b2de283fed9

                SHA512

                a3ce234a55efbda73c4186ecf0f825630cacdc675312d4352d9b5d9c3cfa98f8c3b0499cbdd0beb53233d7bd3cb9646e9d63e81378c8996b319ffacb3745a635

              • C:\ProgramData\{0222BCDE-1250-CD5F-F334-C7FEF4A3D675}\NetworkProjection.lnk

                Filesize

                1KB

                MD5

                e059a83baf697687b223de69b45b2560

                SHA1

                a48aed37088ef37e387968b1ae4299c52cc674a1

                SHA256

                76c095797d523a235440457491d6722693ca1b202995a62508d10c3fd174ce54

                SHA512

                940350152e097bcbc0b3725c2eacc95f0ef69a639b05452ec3143453220230350ba9f79577e7e96d947adb749abb779599395e8bfb8260ba6a537653f7f8d0ff

              • C:\ProgramData\{0222BCDE-1250-CD5F-F334-C7FEF4A3D675}\PPINTL.DLL.trx_dll

                Filesize

                52KB

                MD5

                c4591860219b59bd82e6ef4c7f8b6e15

                SHA1

                c049bcc5100c0d2f1805595ad2d47ca80bd22dad

                SHA256

                6215e1e98c7b4b001f44c49abedef57188001c560439c99fdb510534a985dd25

                SHA512

                eb21690e0d2f5bc6d8e78da614f6ff3ce781a9e6a3fd420cbfd7638c0d86cb4f792ea6c2c0dc3f21235889720b3842737e7ad7f77dff523c1eff2e97e7c2d5fc

              • C:\ProgramData\{0222BCDE-1250-CD5F-F334-C7FEF4A3D675}\PPINTL.REST.trx_dll

                Filesize

                269KB

                MD5

                39d7c0a8e025799ef3d2ff41d31be795

                SHA1

                75ae501fc62565b62dc09634c9e062b2a53e963d

                SHA256

                02873b34e4873df5ee75a3c42a8742450d738fdbc7896a86e71c060585c9a667

                SHA512

                9bba01123b80ee7cf68555fd289a4a046a9cd79938026b19ccb56a6887073977b6c8b3d1061a6c4ac8297988bf41ee6c6c4adda6f132632e78b9b16e2c4438c8

              • C:\ProgramData\{0222BCDE-1250-CD5F-F334-C7FEF4A3D675}\System Information.lnk

                Filesize

                1KB

                MD5

                b1335d7e252d1146cad8030fa46e7d1c

                SHA1

                f947c673668bcd6767ec72b12b92ba759d8a57ba

                SHA256

                45f55a11d28d7c2274470ef84f1c17d0ac775a359a190d43fb8d58e37b8dbc7c

                SHA512

                3d69c030e15fe3c6b466af0462596eb0764b5b505c0ba0ee347608a5a8ad6c22e46e86170bfb5036b0d47839691d00d365f2636afd23548f9d2ea6d7c6119c9e

              • C:\ProgramData\{0222BCDE-1250-CD5F-F334-C7FEF4A3D675}\VISBRRES.DLL.trx_dll

                Filesize

                26KB

                MD5

                3a408c2eebe2fa62a2f6f23ffcab7648

                SHA1

                e209d2553d03bc53e21c4f1d2ff3acb25456ca90

                SHA256

                ef7afbdabb33f09d9f13024176dc11cea6eaa08433ed9304a48fba6fcf53945d

                SHA512

                d6f23c7539aa71cb2a59fd057214badf26bc17c06cf8b2801d495e0cd0c49149c9e4136ae6257cbd0ae44be8241e705835326ec5ac2a9a11e33f51bbb4cd4f86

              • C:\ProgramData\{0222BCDE-1250-CD5F-F334-C7FEF4A3D675}\XLSLICER.DLL.trx_dll

                Filesize

                14KB

                MD5

                63d806c555088e6f1589d09a986fdbc5

                SHA1

                83642f4af4c12ca89b66b2f3c2310c873cf98694

                SHA256

                084c3b577d59fa3ec200c097cdba5d0aab99c015b350aec438f44e9322c6b54c

                SHA512

                e31ae6cd0595731e1057a5d736ef735cb8be2bb420b35f6793f329c6baf81c24f854f742a80dea97d9be3c0724288fa2a0f1d608f5bfcce757343d5e55c02d9d

              • C:\ProgramData\{0222BCDE-1250-CD5F-F334-C7FEF4A3D675}\netfol.ico

                Filesize

                28KB

                MD5

                3fa8c6dc1f72c3f9f8670a3e236459f2

                SHA1

                fcca30e9c5f861ac907150c76ca5f2174d214b7b

                SHA256

                dca1bd2f368d6165695ac6f48239722b9d38226bef45764a0076bbfa184cb0a7

                SHA512

                af6654f32cf0638204293e0117ff43e59f68537e391d3f4b1c7758632767eaa474d7cb44f3b4b7f9ba6cdefda9ec9368cf07814aed4e79949001bd44ede262ec

              • C:\ProgramData\{0222BCDE-1250-CD5F-F334-C7FEF4A3D675}\usertile35.bmp

                Filesize

                48KB

                MD5

                c8d351bf2848d70bacc8c54aebe5ce0a

                SHA1

                f3e4789442f2bf6f76a03d2462bcdc26e9efc78e

                SHA256

                b0c2252a53340d411dab77569089953661edf4bbb0e87c2b4b7ab792adc9818f

                SHA512

                18461905567ed2e40fa29dd7ab1d6a485e0896c8860180286f5524cb4fcc75890b3dcd785163f962b2e3819f9c4bd62d353feb8ba1ba67f73011ec4b42eb2ec5

              • C:\Users\Admin\AppData\Local\Temp\Qfyshwqueqdpai.tmp

                Filesize

                792KB

                MD5

                822d3ead416a1a85cb96e65f65cd5ae2

                SHA1

                af32b69e2835d1cacdadb97ae6dfafccc32d1837

                SHA256

                72bdb3a06dca8458ac9aedf06785b2d7b95a19f8b9f3f8f5be2eb4744e9c5d1d

                SHA512

                48d0d61efd51fd2d8eb04d990b4a5b3ca34c916199d3b0a3b135d2089e028ee37f5145e4705fb75da77eaabbe12f8c4ea55775a41e1b1c68a90ce68b8c2a7260

              • \??\c:\program files (x86)\google\temp\helpmap.dll

                Filesize

                792KB

                MD5

                1df5be6136f0468a64970dc0a9557731

                SHA1

                23ae0b2b1f163d55d56c94d00b39b0a83698939f

                SHA256

                f3ac4e6c767261dcf853c7f72d7657b37c3bab357de2d51b1a20d04fa490c110

                SHA512

                873d3207eb391f18f43a19d8494faeb8ba66afaf6f176c5b83e019062837421eb1a0cfa3f24b28f8c830c2a9124f1ee6f486202fceed7bbd1634f6cd2f376f34

              • \Program Files (x86)\Google\Temp\helpmap.dll

                Filesize

                792KB

                MD5

                1df5be6136f0468a64970dc0a9557731

                SHA1

                23ae0b2b1f163d55d56c94d00b39b0a83698939f

                SHA256

                f3ac4e6c767261dcf853c7f72d7657b37c3bab357de2d51b1a20d04fa490c110

                SHA512

                873d3207eb391f18f43a19d8494faeb8ba66afaf6f176c5b83e019062837421eb1a0cfa3f24b28f8c830c2a9124f1ee6f486202fceed7bbd1634f6cd2f376f34

              • \Program Files (x86)\Google\Temp\helpmap.dll

                Filesize

                792KB

                MD5

                1df5be6136f0468a64970dc0a9557731

                SHA1

                23ae0b2b1f163d55d56c94d00b39b0a83698939f

                SHA256

                f3ac4e6c767261dcf853c7f72d7657b37c3bab357de2d51b1a20d04fa490c110

                SHA512

                873d3207eb391f18f43a19d8494faeb8ba66afaf6f176c5b83e019062837421eb1a0cfa3f24b28f8c830c2a9124f1ee6f486202fceed7bbd1634f6cd2f376f34

              • \Program Files (x86)\Google\Temp\helpmap.dll

                Filesize

                792KB

                MD5

                1df5be6136f0468a64970dc0a9557731

                SHA1

                23ae0b2b1f163d55d56c94d00b39b0a83698939f

                SHA256

                f3ac4e6c767261dcf853c7f72d7657b37c3bab357de2d51b1a20d04fa490c110

                SHA512

                873d3207eb391f18f43a19d8494faeb8ba66afaf6f176c5b83e019062837421eb1a0cfa3f24b28f8c830c2a9124f1ee6f486202fceed7bbd1634f6cd2f376f34

              • \Program Files (x86)\Google\Temp\helpmap.dll

                Filesize

                792KB

                MD5

                1df5be6136f0468a64970dc0a9557731

                SHA1

                23ae0b2b1f163d55d56c94d00b39b0a83698939f

                SHA256

                f3ac4e6c767261dcf853c7f72d7657b37c3bab357de2d51b1a20d04fa490c110

                SHA512

                873d3207eb391f18f43a19d8494faeb8ba66afaf6f176c5b83e019062837421eb1a0cfa3f24b28f8c830c2a9124f1ee6f486202fceed7bbd1634f6cd2f376f34

              • \Program Files (x86)\Google\Temp\helpmap.dll

                Filesize

                792KB

                MD5

                1df5be6136f0468a64970dc0a9557731

                SHA1

                23ae0b2b1f163d55d56c94d00b39b0a83698939f

                SHA256

                f3ac4e6c767261dcf853c7f72d7657b37c3bab357de2d51b1a20d04fa490c110

                SHA512

                873d3207eb391f18f43a19d8494faeb8ba66afaf6f176c5b83e019062837421eb1a0cfa3f24b28f8c830c2a9124f1ee6f486202fceed7bbd1634f6cd2f376f34

              • \Program Files\Mozilla Firefox\firefox.exe

                Filesize

                562KB

                MD5

                d388df6ed5ccbf1acdeda5af2d18cb0b

                SHA1

                124d3c2ba93644ac6c2d7253de242b46be836692

                SHA256

                8bcfd8420d721cc0ca50c1bef653e63e013ce201dfcca5927228eb25c9abf606

                SHA512

                f45200d296f4956ec2c39115095559e7825a748b5481c1a3244edf362a49c40b90d778fcdf4bf629095661d96879c96259574d9bfc29d81b6b14f19f4c32d234

              • \Program Files\Mozilla Firefox\firefox.exe

                Filesize

                562KB

                MD5

                d388df6ed5ccbf1acdeda5af2d18cb0b

                SHA1

                124d3c2ba93644ac6c2d7253de242b46be836692

                SHA256

                8bcfd8420d721cc0ca50c1bef653e63e013ce201dfcca5927228eb25c9abf606

                SHA512

                f45200d296f4956ec2c39115095559e7825a748b5481c1a3244edf362a49c40b90d778fcdf4bf629095661d96879c96259574d9bfc29d81b6b14f19f4c32d234

              • \Program Files\Mozilla Firefox\firefox.exe

                Filesize

                562KB

                MD5

                d388df6ed5ccbf1acdeda5af2d18cb0b

                SHA1

                124d3c2ba93644ac6c2d7253de242b46be836692

                SHA256

                8bcfd8420d721cc0ca50c1bef653e63e013ce201dfcca5927228eb25c9abf606

                SHA512

                f45200d296f4956ec2c39115095559e7825a748b5481c1a3244edf362a49c40b90d778fcdf4bf629095661d96879c96259574d9bfc29d81b6b14f19f4c32d234

              • \Program Files\Mozilla Firefox\firefox.exe

                Filesize

                562KB

                MD5

                d388df6ed5ccbf1acdeda5af2d18cb0b

                SHA1

                124d3c2ba93644ac6c2d7253de242b46be836692

                SHA256

                8bcfd8420d721cc0ca50c1bef653e63e013ce201dfcca5927228eb25c9abf606

                SHA512

                f45200d296f4956ec2c39115095559e7825a748b5481c1a3244edf362a49c40b90d778fcdf4bf629095661d96879c96259574d9bfc29d81b6b14f19f4c32d234

              • \Users\Admin\AppData\Local\Temp\Qfyshwqueqdpai.tmp

                Filesize

                792KB

                MD5

                822d3ead416a1a85cb96e65f65cd5ae2

                SHA1

                af32b69e2835d1cacdadb97ae6dfafccc32d1837

                SHA256

                72bdb3a06dca8458ac9aedf06785b2d7b95a19f8b9f3f8f5be2eb4744e9c5d1d

                SHA512

                48d0d61efd51fd2d8eb04d990b4a5b3ca34c916199d3b0a3b135d2089e028ee37f5145e4705fb75da77eaabbe12f8c4ea55775a41e1b1c68a90ce68b8c2a7260

              • memory/608-107-0x0000000004280000-0x0000000004DDD000-memory.dmp

                Filesize

                11.4MB

              • memory/608-110-0x0000000004280000-0x0000000004DDD000-memory.dmp

                Filesize

                11.4MB

              • memory/608-111-0x0000000004280000-0x0000000004DDD000-memory.dmp

                Filesize

                11.4MB

              • memory/904-86-0x0000000004320000-0x0000000004E7D000-memory.dmp

                Filesize

                11.4MB

              • memory/904-88-0x0000000004320000-0x0000000004E7D000-memory.dmp

                Filesize

                11.4MB

              • memory/904-117-0x0000000004320000-0x0000000004E7D000-memory.dmp

                Filesize

                11.4MB

              • memory/904-108-0x0000000004320000-0x0000000004E7D000-memory.dmp

                Filesize

                11.4MB

              • memory/1228-65-0x0000000004C30000-0x000000000578D000-memory.dmp

                Filesize

                11.4MB

              • memory/1228-63-0x0000000004C30000-0x000000000578D000-memory.dmp

                Filesize

                11.4MB

              • memory/1228-68-0x0000000004510000-0x0000000004650000-memory.dmp

                Filesize

                1.2MB

              • memory/1228-81-0x0000000004C30000-0x000000000578D000-memory.dmp

                Filesize

                11.4MB

              • memory/1228-73-0x0000000004510000-0x0000000004650000-memory.dmp

                Filesize

                1.2MB

              • memory/1228-66-0x0000000004C30000-0x000000000578D000-memory.dmp

                Filesize

                11.4MB

              • memory/1228-74-0x0000000004510000-0x0000000004650000-memory.dmp

                Filesize

                1.2MB

              • memory/1228-72-0x0000000004750000-0x0000000004890000-memory.dmp

                Filesize

                1.2MB

              • memory/1228-67-0x0000000004510000-0x0000000004650000-memory.dmp

                Filesize

                1.2MB

              • memory/1228-69-0x0000000004750000-0x0000000004890000-memory.dmp

                Filesize

                1.2MB

              • memory/1232-59-0x0000000001F00000-0x0000000002011000-memory.dmp

                Filesize

                1.1MB

              • memory/1232-60-0x0000000000400000-0x0000000000523000-memory.dmp

                Filesize

                1.1MB

              • memory/1232-54-0x0000000001D60000-0x0000000001E36000-memory.dmp

                Filesize

                856KB

              • memory/1232-55-0x0000000075091000-0x0000000075093000-memory.dmp

                Filesize

                8KB

              • memory/1232-57-0x0000000001D60000-0x0000000001E36000-memory.dmp

                Filesize

                856KB

              • memory/1680-76-0x0000000002360000-0x00000000024A0000-memory.dmp

                Filesize

                1.2MB

              • memory/1680-80-0x00000000020B0000-0x000000000235E000-memory.dmp

                Filesize

                2.7MB

              • memory/1680-78-0x0000000000240000-0x00000000004DC000-memory.dmp

                Filesize

                2.6MB

              • memory/1680-79-0x000007FEFB9C1000-0x000007FEFB9C3000-memory.dmp

                Filesize

                8KB

              • memory/1680-70-0x0000000000240000-0x00000000004DC000-memory.dmp

                Filesize

                2.6MB

              • memory/1680-77-0x0000000002360000-0x00000000024A0000-memory.dmp

                Filesize

                1.2MB