Analysis

  • max time kernel
    42s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    22/11/2022, 00:01

General

  • Target

    6d35aabaea7329813f91326e01e14e9231832520e30624d8e31c128a50db4e27.exe

  • Size

    602KB

  • MD5

    61d505e6c9f15025c9a73298eef4e551

  • SHA1

    beade2c75eefbc139f6f572fa344e91b8f3c9036

  • SHA256

    6d35aabaea7329813f91326e01e14e9231832520e30624d8e31c128a50db4e27

  • SHA512

    0dc8db2496c64e6a639e4d244b1cdd48b3302f0b9cca207b2bb90609c126995754e9033a6b84a27584c44a88790ae04772d9f2a68548ff30801fa5c49166d2bb

  • SSDEEP

    12288:cIny5DYTjNH0Vxq6BbiQXcDbGqH3CdB6KEVYuOX/kslW:6UTj0xFCHSdkKELOF

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\6d35aabaea7329813f91326e01e14e9231832520e30624d8e31c128a50db4e27.exe
    "C:\Users\Admin\AppData\Local\Temp\6d35aabaea7329813f91326e01e14e9231832520e30624d8e31c128a50db4e27.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:1784
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:240
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1108
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:960
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:2020
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2032
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1160
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1312
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1508
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1540
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1720
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1728
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1880
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:840

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  f7cb85a7db7fbd5336b1cfb167ba4580

                  SHA1

                  897b7616bb106880098c17df62de43503f703591

                  SHA256

                  6088f362ad770a369098ccfefd5c164775dfacb5d90a101a3790c9fe1cb6a99d

                  SHA512

                  43316d5ec2b16efec758df8c092da8a44542c7506bf47f2b75a6c18317cf37d799e2f20f2ddb5bca25938857fa7717f9b6c0fba25d5ad21ce067dae7744da215

                • C:\Windows\SysWOW64\hfpapi.dll

                  Filesize

                  241KB

                  MD5

                  a6cddd07e25eda1930262ffade7b9393

                  SHA1

                  cb542c9d9e57ae98f7a9b014698d3c4a8626f5fa

                  SHA256

                  f9b15f2d2f1ff4da8570ee4cdfc8b1045fc6e4141c4b98b37a0e6722f716b9e9

                  SHA512

                  11ca48a6f88bd9f8bf7d8cbd90503cf7ac0c838dd1605d8adc029f1554e079117827f3664542e9289bc29bd19be4580942643747b688a0f5a94d7ade8ca1d9da

                • C:\Windows\SysWOW64\installd.exe

                  Filesize

                  108KB

                  MD5

                  aeddee1966725d321dfd754bd3222f3a

                  SHA1

                  bee5e43bff36f93af265f588ed40d96e7cb7f95d

                  SHA256

                  a607a4c1c82e6bd228ff921e148dc5a4c4f0fd6646448e22c3ad6fd9d7a51f8b

                  SHA512

                  931418452edcabeb3a452d636e477829b592d447426fdc89e750e6183586dc63b40e59286fe2c9734b5ff66cd785c8c3705991d276a119383652168c14a0258b

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  a8b444fd008c227670848e5a02a9038b

                  SHA1

                  82ea226d81bf5f48d87ccaf7416d0ee1e5685c51

                  SHA256

                  7c440cb072eecf9b1be60593a739bb44a1dc95f57361f35553d7ea730e885ee3

                  SHA512

                  76887cb7128ed5b1f100d5c32c7c46fe371c7c9eeb2f460482ebb490e7ea99ce40b1c78c74132eb947fda2dc1ac44c5a3c86e3321fd6f49b789aa4cca59034d3

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  a8b444fd008c227670848e5a02a9038b

                  SHA1

                  82ea226d81bf5f48d87ccaf7416d0ee1e5685c51

                  SHA256

                  7c440cb072eecf9b1be60593a739bb44a1dc95f57361f35553d7ea730e885ee3

                  SHA512

                  76887cb7128ed5b1f100d5c32c7c46fe371c7c9eeb2f460482ebb490e7ea99ce40b1c78c74132eb947fda2dc1ac44c5a3c86e3321fd6f49b789aa4cca59034d3

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  158KB

                  MD5

                  d8b4c43c192e840b80352ab16733f67d

                  SHA1

                  26b9c70664816cb9fd755a82b70e11291c45a1bb

                  SHA256

                  0b069de144038a9f325a4a73f45a5dfced3b48a9758d4cd95886937991fe7217

                  SHA512

                  2045a3c592499004765e83a4cb223db6acf4637a09ebd978a1330e52aa881d6196b0c22a1da3fda328be6a4628a5587070a9d7f190f273050c54304095544adb

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  158KB

                  MD5

                  d8b4c43c192e840b80352ab16733f67d

                  SHA1

                  26b9c70664816cb9fd755a82b70e11291c45a1bb

                  SHA256

                  0b069de144038a9f325a4a73f45a5dfced3b48a9758d4cd95886937991fe7217

                  SHA512

                  2045a3c592499004765e83a4cb223db6acf4637a09ebd978a1330e52aa881d6196b0c22a1da3fda328be6a4628a5587070a9d7f190f273050c54304095544adb

                • \Users\Admin\AppData\Local\Temp\nsyF9DC.tmp\System.dll

                  Filesize

                  11KB

                  MD5

                  c17103ae9072a06da581dec998343fc1

                  SHA1

                  b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

                  SHA256

                  dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

                  SHA512

                  d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

                • \Users\Admin\AppData\Local\Temp\nsyF9DC.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Users\Admin\AppData\Local\Temp\nsyF9DC.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Users\Admin\AppData\Local\Temp\nsyF9DC.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Users\Admin\AppData\Local\Temp\nsyF9DC.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  f7cb85a7db7fbd5336b1cfb167ba4580

                  SHA1

                  897b7616bb106880098c17df62de43503f703591

                  SHA256

                  6088f362ad770a369098ccfefd5c164775dfacb5d90a101a3790c9fe1cb6a99d

                  SHA512

                  43316d5ec2b16efec758df8c092da8a44542c7506bf47f2b75a6c18317cf37d799e2f20f2ddb5bca25938857fa7717f9b6c0fba25d5ad21ce067dae7744da215

                • \Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  f7cb85a7db7fbd5336b1cfb167ba4580

                  SHA1

                  897b7616bb106880098c17df62de43503f703591

                  SHA256

                  6088f362ad770a369098ccfefd5c164775dfacb5d90a101a3790c9fe1cb6a99d

                  SHA512

                  43316d5ec2b16efec758df8c092da8a44542c7506bf47f2b75a6c18317cf37d799e2f20f2ddb5bca25938857fa7717f9b6c0fba25d5ad21ce067dae7744da215

                • \Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  f7cb85a7db7fbd5336b1cfb167ba4580

                  SHA1

                  897b7616bb106880098c17df62de43503f703591

                  SHA256

                  6088f362ad770a369098ccfefd5c164775dfacb5d90a101a3790c9fe1cb6a99d

                  SHA512

                  43316d5ec2b16efec758df8c092da8a44542c7506bf47f2b75a6c18317cf37d799e2f20f2ddb5bca25938857fa7717f9b6c0fba25d5ad21ce067dae7744da215

                • \Windows\SysWOW64\hfpapi.dll

                  Filesize

                  241KB

                  MD5

                  a6cddd07e25eda1930262ffade7b9393

                  SHA1

                  cb542c9d9e57ae98f7a9b014698d3c4a8626f5fa

                  SHA256

                  f9b15f2d2f1ff4da8570ee4cdfc8b1045fc6e4141c4b98b37a0e6722f716b9e9

                  SHA512

                  11ca48a6f88bd9f8bf7d8cbd90503cf7ac0c838dd1605d8adc029f1554e079117827f3664542e9289bc29bd19be4580942643747b688a0f5a94d7ade8ca1d9da

                • \Windows\SysWOW64\hfpapi.dll

                  Filesize

                  241KB

                  MD5

                  a6cddd07e25eda1930262ffade7b9393

                  SHA1

                  cb542c9d9e57ae98f7a9b014698d3c4a8626f5fa

                  SHA256

                  f9b15f2d2f1ff4da8570ee4cdfc8b1045fc6e4141c4b98b37a0e6722f716b9e9

                  SHA512

                  11ca48a6f88bd9f8bf7d8cbd90503cf7ac0c838dd1605d8adc029f1554e079117827f3664542e9289bc29bd19be4580942643747b688a0f5a94d7ade8ca1d9da

                • \Windows\SysWOW64\installd.exe

                  Filesize

                  108KB

                  MD5

                  aeddee1966725d321dfd754bd3222f3a

                  SHA1

                  bee5e43bff36f93af265f588ed40d96e7cb7f95d

                  SHA256

                  a607a4c1c82e6bd228ff921e148dc5a4c4f0fd6646448e22c3ad6fd9d7a51f8b

                  SHA512

                  931418452edcabeb3a452d636e477829b592d447426fdc89e750e6183586dc63b40e59286fe2c9734b5ff66cd785c8c3705991d276a119383652168c14a0258b

                • \Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  a8b444fd008c227670848e5a02a9038b

                  SHA1

                  82ea226d81bf5f48d87ccaf7416d0ee1e5685c51

                  SHA256

                  7c440cb072eecf9b1be60593a739bb44a1dc95f57361f35553d7ea730e885ee3

                  SHA512

                  76887cb7128ed5b1f100d5c32c7c46fe371c7c9eeb2f460482ebb490e7ea99ce40b1c78c74132eb947fda2dc1ac44c5a3c86e3321fd6f49b789aa4cca59034d3

                • \Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  158KB

                  MD5

                  d8b4c43c192e840b80352ab16733f67d

                  SHA1

                  26b9c70664816cb9fd755a82b70e11291c45a1bb

                  SHA256

                  0b069de144038a9f325a4a73f45a5dfced3b48a9758d4cd95886937991fe7217

                  SHA512

                  2045a3c592499004765e83a4cb223db6acf4637a09ebd978a1330e52aa881d6196b0c22a1da3fda328be6a4628a5587070a9d7f190f273050c54304095544adb

                • memory/1784-54-0x00000000753C1000-0x00000000753C3000-memory.dmp

                  Filesize

                  8KB

                • memory/1784-59-0x0000000000360000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.4MB

                • memory/1784-90-0x0000000000360000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.4MB