Analysis

  • max time kernel
    176s
  • max time network
    187s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:59

General

  • Target

    2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe

  • Size

    446KB

  • MD5

    9f35f8ca1d230557d40e02fa97451267

  • SHA1

    0cde4bcac7b392c4bb2bb3e874ecd4723e2d4a2d

  • SHA256

    2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b

  • SHA512

    94bfdf5f6f079420921934f80bb08cac0e99bf86d0e3820b0dd123025e2e837e11df427cc86a397d78899151cf3745e99fe7a1bfc8c0ce24076d78dd75a0ac86

  • SSDEEP

    6144:Xzf4kWBmg2sI8SxLPa20UcPtwUOikNx/wuIg/+Y5R6l6AzfSum7a3q5RzVDp:Mk6mXsxqanUqt0N2n4d6gkfY7uqbJp

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 14 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.

  • Modifies data under HKEY_USERS 1 IoCs
  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe
    "C:\Users\Admin\AppData\Local\Temp\2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.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:784
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3372
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:428
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3776
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4332
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1272
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3128
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4536
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1048
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3284
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3472
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4764
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Modifies data under HKEY_USERS
            • Suspicious use of AdjustPrivilegeToken
            PID:4688
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4396

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Discovery

          Query Registry

          1
          T1012

          System Information Discovery

          1
          T1082

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsm8E.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsm8E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsm8E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsm8E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsm8E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsm8E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsm8E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsm8E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsm8E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            d6e2063b2eeabd0311e9675570fa1e91

            SHA1

            42dd5f7b45413a95d436d521d1c39bbca37f4e1a

            SHA256

            f1a7bc76e1600e391415fe2707bbeb898a76e3b292f06129bc4f8f0655a9b1de

            SHA512

            701bb0ab4456efe2bf1692d7da846ff8a09256602bdbe9c12652f395836e160717cb7ca9a7ac250a3b29561adfcc82ab5c4cdf634742e16dc05e8182c03c4b0a

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            d6e2063b2eeabd0311e9675570fa1e91

            SHA1

            42dd5f7b45413a95d436d521d1c39bbca37f4e1a

            SHA256

            f1a7bc76e1600e391415fe2707bbeb898a76e3b292f06129bc4f8f0655a9b1de

            SHA512

            701bb0ab4456efe2bf1692d7da846ff8a09256602bdbe9c12652f395836e160717cb7ca9a7ac250a3b29561adfcc82ab5c4cdf634742e16dc05e8182c03c4b0a

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            d6e2063b2eeabd0311e9675570fa1e91

            SHA1

            42dd5f7b45413a95d436d521d1c39bbca37f4e1a

            SHA256

            f1a7bc76e1600e391415fe2707bbeb898a76e3b292f06129bc4f8f0655a9b1de

            SHA512

            701bb0ab4456efe2bf1692d7da846ff8a09256602bdbe9c12652f395836e160717cb7ca9a7ac250a3b29561adfcc82ab5c4cdf634742e16dc05e8182c03c4b0a

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            d6e2063b2eeabd0311e9675570fa1e91

            SHA1

            42dd5f7b45413a95d436d521d1c39bbca37f4e1a

            SHA256

            f1a7bc76e1600e391415fe2707bbeb898a76e3b292f06129bc4f8f0655a9b1de

            SHA512

            701bb0ab4456efe2bf1692d7da846ff8a09256602bdbe9c12652f395836e160717cb7ca9a7ac250a3b29561adfcc82ab5c4cdf634742e16dc05e8182c03c4b0a

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            f3c911f53309cccffcd74fe72db6fe37

            SHA1

            bce493828ff29b18c250084f5a005dde844c8292

            SHA256

            3ac682e31b2efa55c127b7464efd6067252896947b7a750251a2c04136fe02e1

            SHA512

            3919ba1d1737b6e7f8df1eb1d080c129bb37925ad1c24266dadf6a255219e12da04e5b2a751e26d62e7fd1f3cd2938c6bf05ecde0eea12331499f79ab5acff36

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            f3c911f53309cccffcd74fe72db6fe37

            SHA1

            bce493828ff29b18c250084f5a005dde844c8292

            SHA256

            3ac682e31b2efa55c127b7464efd6067252896947b7a750251a2c04136fe02e1

            SHA512

            3919ba1d1737b6e7f8df1eb1d080c129bb37925ad1c24266dadf6a255219e12da04e5b2a751e26d62e7fd1f3cd2938c6bf05ecde0eea12331499f79ab5acff36

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            f3c911f53309cccffcd74fe72db6fe37

            SHA1

            bce493828ff29b18c250084f5a005dde844c8292

            SHA256

            3ac682e31b2efa55c127b7464efd6067252896947b7a750251a2c04136fe02e1

            SHA512

            3919ba1d1737b6e7f8df1eb1d080c129bb37925ad1c24266dadf6a255219e12da04e5b2a751e26d62e7fd1f3cd2938c6bf05ecde0eea12331499f79ab5acff36

          • C:\Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            377bfe998d5d403263eced938ec5fde2

            SHA1

            8069d7af6e96f50fa4ba8b86ef8623ce4b3e5e26

            SHA256

            27f97850aa89faafdc7cbdb6ca4f6fe254357a1a6643d6d1859a0462c40a1379

            SHA512

            ccce0f38198075dc22e8eb706dac252fec71c17a60a5c778c88fc1a5b681633480048e14022ceb9e0308e68cfabb9cebbd16be9bba550c6f9c87b483ba3a1fdd

          • C:\Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            377bfe998d5d403263eced938ec5fde2

            SHA1

            8069d7af6e96f50fa4ba8b86ef8623ce4b3e5e26

            SHA256

            27f97850aa89faafdc7cbdb6ca4f6fe254357a1a6643d6d1859a0462c40a1379

            SHA512

            ccce0f38198075dc22e8eb706dac252fec71c17a60a5c778c88fc1a5b681633480048e14022ceb9e0308e68cfabb9cebbd16be9bba550c6f9c87b483ba3a1fdd

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            45fd8ad3948df185d1057f53df717829

            SHA1

            42bc3a3c0d09d4ec2abe1b35fc6db622b0b39c69

            SHA256

            ad98abbb812b00574a15bbeaf290178050ed8da034ec41eb64441e82683c4167

            SHA512

            5629e0a380492780799f7aa68357236362854b80acfee8c9820e01876c94ea898ecf8f4c057d2b301c735bbde069fca1ab5bfe0dc5099302b55afe029448f130

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            45fd8ad3948df185d1057f53df717829

            SHA1

            42bc3a3c0d09d4ec2abe1b35fc6db622b0b39c69

            SHA256

            ad98abbb812b00574a15bbeaf290178050ed8da034ec41eb64441e82683c4167

            SHA512

            5629e0a380492780799f7aa68357236362854b80acfee8c9820e01876c94ea898ecf8f4c057d2b301c735bbde069fca1ab5bfe0dc5099302b55afe029448f130

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            45fd8ad3948df185d1057f53df717829

            SHA1

            42bc3a3c0d09d4ec2abe1b35fc6db622b0b39c69

            SHA256

            ad98abbb812b00574a15bbeaf290178050ed8da034ec41eb64441e82683c4167

            SHA512

            5629e0a380492780799f7aa68357236362854b80acfee8c9820e01876c94ea898ecf8f4c057d2b301c735bbde069fca1ab5bfe0dc5099302b55afe029448f130

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            9bfc78e2eb3ab2860946a64c6a8d1458

            SHA1

            ebdc12f30370108a8180cde7b8c49bf88c1caaeb

            SHA256

            9fa81d4453d103cc780fda97f501bc41025c41052051b1c12054479b8dfcdf33

            SHA512

            e4191c7d864fc1766d86eaf15824777353eb37d1afd008a643d65bf3885de740b510f41c48a9ca1f5f1d59641f954355f11f39272b0de21b9f7e0053638c5828

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            9bfc78e2eb3ab2860946a64c6a8d1458

            SHA1

            ebdc12f30370108a8180cde7b8c49bf88c1caaeb

            SHA256

            9fa81d4453d103cc780fda97f501bc41025c41052051b1c12054479b8dfcdf33

            SHA512

            e4191c7d864fc1766d86eaf15824777353eb37d1afd008a643d65bf3885de740b510f41c48a9ca1f5f1d59641f954355f11f39272b0de21b9f7e0053638c5828

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            9bfc78e2eb3ab2860946a64c6a8d1458

            SHA1

            ebdc12f30370108a8180cde7b8c49bf88c1caaeb

            SHA256

            9fa81d4453d103cc780fda97f501bc41025c41052051b1c12054479b8dfcdf33

            SHA512

            e4191c7d864fc1766d86eaf15824777353eb37d1afd008a643d65bf3885de740b510f41c48a9ca1f5f1d59641f954355f11f39272b0de21b9f7e0053638c5828

          • memory/428-136-0x0000000000000000-mapping.dmp
          • memory/1048-157-0x0000000000000000-mapping.dmp
          • memory/1272-141-0x0000000000000000-mapping.dmp
          • memory/3128-146-0x0000000000000000-mapping.dmp
          • memory/3284-158-0x0000000000000000-mapping.dmp
          • memory/3372-135-0x0000000000000000-mapping.dmp
          • memory/3472-164-0x0000000000000000-mapping.dmp
          • memory/3776-139-0x0000000000000000-mapping.dmp
          • memory/4332-140-0x0000000000000000-mapping.dmp
          • memory/4536-152-0x0000000000000000-mapping.dmp
          • memory/4764-165-0x0000000000000000-mapping.dmp