Analysis

  • max time kernel
    46s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    25/11/2022, 13:52

General

  • Target

    bbfe9eddbd371ab522587f6bf8aaaa68976c5faed85e21454f068b1f3ab8a425.exe

  • Size

    563KB

  • MD5

    527598b9bfe494006bc1ec800acc4ad2

  • SHA1

    5aafc25f54992d987423313e3ecb67cc652418dd

  • SHA256

    bbfe9eddbd371ab522587f6bf8aaaa68976c5faed85e21454f068b1f3ab8a425

  • SHA512

    009591c2b575586fef27f7c49f33eef89dc151ad45bdbfbe4b92a4fd8d54c561063146d63d5b26fecd590a452771286f4f992447763c1c325b29a68a37083c11

  • SSDEEP

    12288:WPRYzbbfbRVx4daF8KKlxLTppZPf9lH1FuoBPOwDVPz1:Lz3flVfytRfzVFuoxD91

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 13 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Drops file in System32 directory 5 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bbfe9eddbd371ab522587f6bf8aaaa68976c5faed85e21454f068b1f3ab8a425.exe
    "C:\Users\Admin\AppData\Local\Temp\bbfe9eddbd371ab522587f6bf8aaaa68976c5faed85e21454f068b1f3ab8a425.exe"
    1⤵
    • Drops file in Drivers directory
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:1768
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1716
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:112
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1316
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1616
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1584
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1204
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:744
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1656
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1552
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1004
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1052
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:772
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1920

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            991d62a29efa29fe658df37bce9afb18

            SHA1

            376f6e2cabd1549f207c39a558095386d7807888

            SHA256

            8c0567377207fe70f08db8a53df59629a447430ba6a71a842d373bfa9887887f

            SHA512

            5acb4c807a73f6173c8cefe1daed04d12552cc0b4018442a1326ac550c5d5777e2925eec0a53e42aec9bdaf5ff7ee0ac891e7d45b44223d4011e0d95e0988262

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            f8f47c1f4fb1029a3d9c97eb6042e1e6

            SHA1

            f7b15878b319791a6b35319c1cf57052992b7673

            SHA256

            830c89c9e632af654220428e7266cd1044ddf242d0d957d13cbe5d9730411f18

            SHA512

            c39617ec1ea4c333ab00fccc0b3c2558917766ecc3722a34856b8ed5531c7e9a3177e7d515787c21af9dcff49c2bd82596518cd4d6d0e1fe3efcfa2943d881a1

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            18cc692feb680698c7e5c4e96e81c071

            SHA1

            6154997283779a9bd72208c68874153f22fdfc74

            SHA256

            5b8556df0dd9404b97b86cddda0e4a35ec6b812a0ccc0a99b01de24c86d93f08

            SHA512

            eaa9ae3d0a8ac99a3beb967805e39c168b947da10f96935ae575658c9fa2c70f67b9a0f10c77ffe106c041ef6d14f1dc17c54e5c406312327f250c3ce73a6f1c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            beb8036942155277fad5eb50b97b9461

            SHA1

            06932fc6608e4447e50e561ce599b18c4789dc42

            SHA256

            be83f1a28f6dac6856a99ae1d9c4ec2e8892c61daa7c666c4316e01c1762e9b0

            SHA512

            19d8d07c737854a9b1d03aa88d82b965980daa7df4f5cc3fddf4b1e27b4ab1b62616a38d51c576e24b987714dc3640455cfb3c11af3ca37da72572e185cf803b

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            beb8036942155277fad5eb50b97b9461

            SHA1

            06932fc6608e4447e50e561ce599b18c4789dc42

            SHA256

            be83f1a28f6dac6856a99ae1d9c4ec2e8892c61daa7c666c4316e01c1762e9b0

            SHA512

            19d8d07c737854a9b1d03aa88d82b965980daa7df4f5cc3fddf4b1e27b4ab1b62616a38d51c576e24b987714dc3640455cfb3c11af3ca37da72572e185cf803b

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            4a565d5cd1ab95792d64053f7c95a83e

            SHA1

            3d22fd5322cdc8274fe411a29e9bd5308dc1ec01

            SHA256

            1770ac0be5bdecdb01b06391e35be6f787283da13bbcecf1e68fb7f20e40d4e4

            SHA512

            a2ddec1f81afca18f75a388f492040ef8b51d3e9705cee11e1e2147dae8e99d7d2bb484399cac5903235ccd516e3dcc4db56416c9d381699c03194138ec26525

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            4a565d5cd1ab95792d64053f7c95a83e

            SHA1

            3d22fd5322cdc8274fe411a29e9bd5308dc1ec01

            SHA256

            1770ac0be5bdecdb01b06391e35be6f787283da13bbcecf1e68fb7f20e40d4e4

            SHA512

            a2ddec1f81afca18f75a388f492040ef8b51d3e9705cee11e1e2147dae8e99d7d2bb484399cac5903235ccd516e3dcc4db56416c9d381699c03194138ec26525

          • \Users\Admin\AppData\Local\Temp\nstF6FF.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nstF6FF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nstF6FF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nstF6FF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nstF6FF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            991d62a29efa29fe658df37bce9afb18

            SHA1

            376f6e2cabd1549f207c39a558095386d7807888

            SHA256

            8c0567377207fe70f08db8a53df59629a447430ba6a71a842d373bfa9887887f

            SHA512

            5acb4c807a73f6173c8cefe1daed04d12552cc0b4018442a1326ac550c5d5777e2925eec0a53e42aec9bdaf5ff7ee0ac891e7d45b44223d4011e0d95e0988262

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            991d62a29efa29fe658df37bce9afb18

            SHA1

            376f6e2cabd1549f207c39a558095386d7807888

            SHA256

            8c0567377207fe70f08db8a53df59629a447430ba6a71a842d373bfa9887887f

            SHA512

            5acb4c807a73f6173c8cefe1daed04d12552cc0b4018442a1326ac550c5d5777e2925eec0a53e42aec9bdaf5ff7ee0ac891e7d45b44223d4011e0d95e0988262

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            991d62a29efa29fe658df37bce9afb18

            SHA1

            376f6e2cabd1549f207c39a558095386d7807888

            SHA256

            8c0567377207fe70f08db8a53df59629a447430ba6a71a842d373bfa9887887f

            SHA512

            5acb4c807a73f6173c8cefe1daed04d12552cc0b4018442a1326ac550c5d5777e2925eec0a53e42aec9bdaf5ff7ee0ac891e7d45b44223d4011e0d95e0988262

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            f8f47c1f4fb1029a3d9c97eb6042e1e6

            SHA1

            f7b15878b319791a6b35319c1cf57052992b7673

            SHA256

            830c89c9e632af654220428e7266cd1044ddf242d0d957d13cbe5d9730411f18

            SHA512

            c39617ec1ea4c333ab00fccc0b3c2558917766ecc3722a34856b8ed5531c7e9a3177e7d515787c21af9dcff49c2bd82596518cd4d6d0e1fe3efcfa2943d881a1

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            f8f47c1f4fb1029a3d9c97eb6042e1e6

            SHA1

            f7b15878b319791a6b35319c1cf57052992b7673

            SHA256

            830c89c9e632af654220428e7266cd1044ddf242d0d957d13cbe5d9730411f18

            SHA512

            c39617ec1ea4c333ab00fccc0b3c2558917766ecc3722a34856b8ed5531c7e9a3177e7d515787c21af9dcff49c2bd82596518cd4d6d0e1fe3efcfa2943d881a1

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            18cc692feb680698c7e5c4e96e81c071

            SHA1

            6154997283779a9bd72208c68874153f22fdfc74

            SHA256

            5b8556df0dd9404b97b86cddda0e4a35ec6b812a0ccc0a99b01de24c86d93f08

            SHA512

            eaa9ae3d0a8ac99a3beb967805e39c168b947da10f96935ae575658c9fa2c70f67b9a0f10c77ffe106c041ef6d14f1dc17c54e5c406312327f250c3ce73a6f1c

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            beb8036942155277fad5eb50b97b9461

            SHA1

            06932fc6608e4447e50e561ce599b18c4789dc42

            SHA256

            be83f1a28f6dac6856a99ae1d9c4ec2e8892c61daa7c666c4316e01c1762e9b0

            SHA512

            19d8d07c737854a9b1d03aa88d82b965980daa7df4f5cc3fddf4b1e27b4ab1b62616a38d51c576e24b987714dc3640455cfb3c11af3ca37da72572e185cf803b

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            4a565d5cd1ab95792d64053f7c95a83e

            SHA1

            3d22fd5322cdc8274fe411a29e9bd5308dc1ec01

            SHA256

            1770ac0be5bdecdb01b06391e35be6f787283da13bbcecf1e68fb7f20e40d4e4

            SHA512

            a2ddec1f81afca18f75a388f492040ef8b51d3e9705cee11e1e2147dae8e99d7d2bb484399cac5903235ccd516e3dcc4db56416c9d381699c03194138ec26525

          • memory/1768-54-0x0000000076961000-0x0000000076963000-memory.dmp

            Filesize

            8KB

          • memory/1768-58-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1768-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB