Analysis

  • max time kernel
    178s
  • max time network
    192s
  • 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 10:30

General

  • Target

    2cd62e1c43253756e84dedcd84540b19747c6ab0ec2c23528fa4b13f38115c3f.exe

  • Size

    602KB

  • MD5

    397f046094bdf4e8682df33cb1e58586

  • SHA1

    f50b7163649fc92312e3bbedd18f1077132af777

  • SHA256

    2cd62e1c43253756e84dedcd84540b19747c6ab0ec2c23528fa4b13f38115c3f

  • SHA512

    7fe50ae121a83e0cc84ef78279a9851936bca675cc80ebcb831c0d3ea70989fabbc6e744fae169c6380f498223c54e283201ecf55c67c84b06e838add1839d77

  • SSDEEP

    12288:LIny5DYTupV5Sh6UbKwrwS9GNr7Z6X5eU2BecfCrg:zUTupnjUGw39GNr7Z6X499

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\2cd62e1c43253756e84dedcd84540b19747c6ab0ec2c23528fa4b13f38115c3f.exe
    "C:\Users\Admin\AppData\Local\Temp\2cd62e1c43253756e84dedcd84540b19747c6ab0ec2c23528fa4b13f38115c3f.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:3528
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:372
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:5048
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:5040
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:3712
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1144
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2636
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:3156
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3696
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1816
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2044
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:856
          • 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:3584
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3132

          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\nsp3A0D.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsp3A0D.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsp3A0D.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsp3A0D.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsp3A0D.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsp3A0D.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsp3A0D.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsp3A0D.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsp3A0D.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            106KB

            MD5

            4b4ffdc7a3cc033af56e947f84c788d9

            SHA1

            f5bd9bf68dd153a82d9dfcc33c427a82c35383c9

            SHA256

            a62eada35841380534917d90e5153e15ae703949b9a9629943ae6a9214dc3081

            SHA512

            0ec4541676b30b2cce07fb9b6816747992a9a28cf714467037023124b12f618baa3905de18d33739d50def6557d946d75bd25a7aeace03b3fa15d32b8025ce2e

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

            106KB

            MD5

            4b4ffdc7a3cc033af56e947f84c788d9

            SHA1

            f5bd9bf68dd153a82d9dfcc33c427a82c35383c9

            SHA256

            a62eada35841380534917d90e5153e15ae703949b9a9629943ae6a9214dc3081

            SHA512

            0ec4541676b30b2cce07fb9b6816747992a9a28cf714467037023124b12f618baa3905de18d33739d50def6557d946d75bd25a7aeace03b3fa15d32b8025ce2e

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

            106KB

            MD5

            4b4ffdc7a3cc033af56e947f84c788d9

            SHA1

            f5bd9bf68dd153a82d9dfcc33c427a82c35383c9

            SHA256

            a62eada35841380534917d90e5153e15ae703949b9a9629943ae6a9214dc3081

            SHA512

            0ec4541676b30b2cce07fb9b6816747992a9a28cf714467037023124b12f618baa3905de18d33739d50def6557d946d75bd25a7aeace03b3fa15d32b8025ce2e

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

            106KB

            MD5

            4b4ffdc7a3cc033af56e947f84c788d9

            SHA1

            f5bd9bf68dd153a82d9dfcc33c427a82c35383c9

            SHA256

            a62eada35841380534917d90e5153e15ae703949b9a9629943ae6a9214dc3081

            SHA512

            0ec4541676b30b2cce07fb9b6816747992a9a28cf714467037023124b12f618baa3905de18d33739d50def6557d946d75bd25a7aeace03b3fa15d32b8025ce2e

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

            241KB

            MD5

            3e9931c5efb27432cf735db357d697f1

            SHA1

            ce7a0ca2c33eb72dcdbff2660ed6bddcb74ab1a1

            SHA256

            34cfdd20c333b304dd38dce4c9727b1bb838f69337911bdb027ea8d9a3f5cfb4

            SHA512

            c12870f2463882795ff84fdc83c949ddc589c4ce7c79d34d56cce09901d539ef7f189dffb0759763f082b05d2e5d6693c1d9c9e280e517bf3473979a731e0658

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

            241KB

            MD5

            3e9931c5efb27432cf735db357d697f1

            SHA1

            ce7a0ca2c33eb72dcdbff2660ed6bddcb74ab1a1

            SHA256

            34cfdd20c333b304dd38dce4c9727b1bb838f69337911bdb027ea8d9a3f5cfb4

            SHA512

            c12870f2463882795ff84fdc83c949ddc589c4ce7c79d34d56cce09901d539ef7f189dffb0759763f082b05d2e5d6693c1d9c9e280e517bf3473979a731e0658

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

            241KB

            MD5

            3e9931c5efb27432cf735db357d697f1

            SHA1

            ce7a0ca2c33eb72dcdbff2660ed6bddcb74ab1a1

            SHA256

            34cfdd20c333b304dd38dce4c9727b1bb838f69337911bdb027ea8d9a3f5cfb4

            SHA512

            c12870f2463882795ff84fdc83c949ddc589c4ce7c79d34d56cce09901d539ef7f189dffb0759763f082b05d2e5d6693c1d9c9e280e517bf3473979a731e0658

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

            108KB

            MD5

            1ff3f7dfb0b3fc7555956b56b1a413c0

            SHA1

            8f3c43fc94c70589d723ffe6876e56340bdde7f9

            SHA256

            867ef4934547e4a49f3b7855f19ec57257fc9643bdf602f4c2785fd230f6303d

            SHA512

            9a25017cf506e9e5a91e8913d468f0ea604ff2332761261027045db832427a704604b6ddc6174de8bf3f00397df85c19ad76f2cab70664f8937142acc0d1fecc

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

            108KB

            MD5

            1ff3f7dfb0b3fc7555956b56b1a413c0

            SHA1

            8f3c43fc94c70589d723ffe6876e56340bdde7f9

            SHA256

            867ef4934547e4a49f3b7855f19ec57257fc9643bdf602f4c2785fd230f6303d

            SHA512

            9a25017cf506e9e5a91e8913d468f0ea604ff2332761261027045db832427a704604b6ddc6174de8bf3f00397df85c19ad76f2cab70664f8937142acc0d1fecc

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

            176KB

            MD5

            4d2d5d03bfc02bf5aaa52422dc249206

            SHA1

            c40cf25d771155ec182cd85806d289a11a5e5024

            SHA256

            2a92c8d127c969a1c06cf568d0b4468a89c7a7c6bd4cc4a41b510e7fea4c37df

            SHA512

            52649485d243dad1d2c833f0ab2e8d9dbd0cedff697f389e517e0836483ae5c78e80b8589e975d61452267a3bdd317256c76c9ab7d8b2c3281ec67a27d582d85

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

            176KB

            MD5

            4d2d5d03bfc02bf5aaa52422dc249206

            SHA1

            c40cf25d771155ec182cd85806d289a11a5e5024

            SHA256

            2a92c8d127c969a1c06cf568d0b4468a89c7a7c6bd4cc4a41b510e7fea4c37df

            SHA512

            52649485d243dad1d2c833f0ab2e8d9dbd0cedff697f389e517e0836483ae5c78e80b8589e975d61452267a3bdd317256c76c9ab7d8b2c3281ec67a27d582d85

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

            176KB

            MD5

            4d2d5d03bfc02bf5aaa52422dc249206

            SHA1

            c40cf25d771155ec182cd85806d289a11a5e5024

            SHA256

            2a92c8d127c969a1c06cf568d0b4468a89c7a7c6bd4cc4a41b510e7fea4c37df

            SHA512

            52649485d243dad1d2c833f0ab2e8d9dbd0cedff697f389e517e0836483ae5c78e80b8589e975d61452267a3bdd317256c76c9ab7d8b2c3281ec67a27d582d85

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

            159KB

            MD5

            7160523a3d0690fc5ffed7f4d87c7e47

            SHA1

            501d3930a43c6e62dfe98d37c0c359665367270b

            SHA256

            8c6b561ce699f6df33a0dd1407b328dfe00dc56e22a2844456e4cc607c806baa

            SHA512

            d363c344169ebd49235dc5c65bf2c5b13279cd3bb485d44cac92d2759d292d2f5b1bababbeed82c96897bce41cfdbafa5e55939db5e557a3390d9e6efade6b0f

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

            159KB

            MD5

            7160523a3d0690fc5ffed7f4d87c7e47

            SHA1

            501d3930a43c6e62dfe98d37c0c359665367270b

            SHA256

            8c6b561ce699f6df33a0dd1407b328dfe00dc56e22a2844456e4cc607c806baa

            SHA512

            d363c344169ebd49235dc5c65bf2c5b13279cd3bb485d44cac92d2759d292d2f5b1bababbeed82c96897bce41cfdbafa5e55939db5e557a3390d9e6efade6b0f

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

            159KB

            MD5

            7160523a3d0690fc5ffed7f4d87c7e47

            SHA1

            501d3930a43c6e62dfe98d37c0c359665367270b

            SHA256

            8c6b561ce699f6df33a0dd1407b328dfe00dc56e22a2844456e4cc607c806baa

            SHA512

            d363c344169ebd49235dc5c65bf2c5b13279cd3bb485d44cac92d2759d292d2f5b1bababbeed82c96897bce41cfdbafa5e55939db5e557a3390d9e6efade6b0f

          • memory/372-135-0x0000000000000000-mapping.dmp
          • memory/856-166-0x0000000000000000-mapping.dmp
          • memory/1144-142-0x0000000000000000-mapping.dmp
          • memory/1816-159-0x0000000000000000-mapping.dmp
          • memory/2044-165-0x0000000000000000-mapping.dmp
          • memory/2636-147-0x0000000000000000-mapping.dmp
          • memory/3156-153-0x0000000000000000-mapping.dmp
          • memory/3528-136-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/3528-168-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/3696-158-0x0000000000000000-mapping.dmp
          • memory/3712-141-0x0000000000000000-mapping.dmp
          • memory/5040-140-0x0000000000000000-mapping.dmp
          • memory/5048-137-0x0000000000000000-mapping.dmp