Analysis

  • max time kernel
    45s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:32

General

  • Target

    1db65fd9d258c6f864369ac4329a3c75958e2f24091c6b33a1574f3f2638ff38.exe

  • Size

    603KB

  • MD5

    c1b80fad310587d3fc84d8c78689a20d

  • SHA1

    b2cbd099c4bf1d52d5076ba876273fa09818858a

  • SHA256

    1db65fd9d258c6f864369ac4329a3c75958e2f24091c6b33a1574f3f2638ff38

  • SHA512

    2b4d223b0db444f5c2045a69306a33a9d78619809c31b505d23186ef4719c5163cdecb267215c56a8a1a8d358f05b019196fcdacac76bca218d740100ad11d03

  • SSDEEP

    12288:OIny5DYTfIXKXG63IRbsLKjl6IIahLgbTADtiGS1aTEPITF:QUTfstLhfabSkfPo

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\1db65fd9d258c6f864369ac4329a3c75958e2f24091c6b33a1574f3f2638ff38.exe
    "C:\Users\Admin\AppData\Local\Temp\1db65fd9d258c6f864369ac4329a3c75958e2f24091c6b33a1574f3f2638ff38.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:1724
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1476
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:268
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1652
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:828
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1356
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:900
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1916
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1832
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1728
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1908
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:816
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:2020
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1776

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            5eedef550e7d49d8736e7816eeb55a8d

            SHA1

            175e18161c4b29b53d3ee0f0e45941fec1799b6f

            SHA256

            a7a75ff5a81778359ec06957300cd510f4a2eb3915c001f39434251b870936f6

            SHA512

            69bf0d4e9b971d1afbe31a276cfb29e7474d1a44b635c1ac9196bc17f27a046d99ece58f263eaddcba1f096af40ba117602381f7eff07274b33f95be7b2c0283

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            2ea6c5e1e0c0db85d8a5465add40bb9c

            SHA1

            954fce6ae70a9985e5d92231fd7b9cadde577aee

            SHA256

            cc3f4ec127136d081048a68ee2d46a4785ace71438265c5c5ae2867636644f39

            SHA512

            f12394c4de72b1f42fe3216b5d86bae42483b5609644fe551db606d339eca75b4d51e6997a1040f09ea98a3b0f4a9a7374c65e6d4028b61c6dff6d46e8fef863

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            28245e92b1faac3d9797022a941ff53a

            SHA1

            f6752148f6ae8d94a923f17a6f618ac13dbdad83

            SHA256

            febceb32985f33471b14395359e47a5e2295cec103e571cff5f2a33a6afa9408

            SHA512

            44a1330eeed21a59c6f29232f4dff791c9a92f23820ac0bd0c15774f051ca287f87ceece38e79066d2c193b156170b547305a124a97d1a7b0521b6c9f099de97

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            656fbe2e661312325e1a1491913b900e

            SHA1

            6063c92b8b1718fc48732a5143ace020f6fcac9a

            SHA256

            5323083c49f129578f49478cc5450ce4c0db40290e5cd5a59839e8744a33073b

            SHA512

            e0af20c1912948e2facd8be15d04bac57299efa68ba5a672eb25d36cd9318c2f7a91c895b6aa66eebc80e75c7a41185583dd59f41b938d4bd170fa9e546b3868

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            656fbe2e661312325e1a1491913b900e

            SHA1

            6063c92b8b1718fc48732a5143ace020f6fcac9a

            SHA256

            5323083c49f129578f49478cc5450ce4c0db40290e5cd5a59839e8744a33073b

            SHA512

            e0af20c1912948e2facd8be15d04bac57299efa68ba5a672eb25d36cd9318c2f7a91c895b6aa66eebc80e75c7a41185583dd59f41b938d4bd170fa9e546b3868

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e7571f6ed79f9ba71aabce14634eb84f

            SHA1

            2523b2958845e042bdc2b66f32cc242592e735c8

            SHA256

            263709b25e8a98aaa4cc6b82561a36c88a92b82272bfe533736495987335a5c3

            SHA512

            836d7443076ca091a7502ec080f513d6920c709947e8f332018379875b41853dc7652d7acfb516e70a8200ac206f7b3366293803af64cce025271ade565eca4d

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e7571f6ed79f9ba71aabce14634eb84f

            SHA1

            2523b2958845e042bdc2b66f32cc242592e735c8

            SHA256

            263709b25e8a98aaa4cc6b82561a36c88a92b82272bfe533736495987335a5c3

            SHA512

            836d7443076ca091a7502ec080f513d6920c709947e8f332018379875b41853dc7652d7acfb516e70a8200ac206f7b3366293803af64cce025271ade565eca4d

          • \Users\Admin\AppData\Local\Temp\nsyB8E6.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsyB8E6.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyB8E6.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyB8E6.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyB8E6.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            5eedef550e7d49d8736e7816eeb55a8d

            SHA1

            175e18161c4b29b53d3ee0f0e45941fec1799b6f

            SHA256

            a7a75ff5a81778359ec06957300cd510f4a2eb3915c001f39434251b870936f6

            SHA512

            69bf0d4e9b971d1afbe31a276cfb29e7474d1a44b635c1ac9196bc17f27a046d99ece58f263eaddcba1f096af40ba117602381f7eff07274b33f95be7b2c0283

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            5eedef550e7d49d8736e7816eeb55a8d

            SHA1

            175e18161c4b29b53d3ee0f0e45941fec1799b6f

            SHA256

            a7a75ff5a81778359ec06957300cd510f4a2eb3915c001f39434251b870936f6

            SHA512

            69bf0d4e9b971d1afbe31a276cfb29e7474d1a44b635c1ac9196bc17f27a046d99ece58f263eaddcba1f096af40ba117602381f7eff07274b33f95be7b2c0283

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            5eedef550e7d49d8736e7816eeb55a8d

            SHA1

            175e18161c4b29b53d3ee0f0e45941fec1799b6f

            SHA256

            a7a75ff5a81778359ec06957300cd510f4a2eb3915c001f39434251b870936f6

            SHA512

            69bf0d4e9b971d1afbe31a276cfb29e7474d1a44b635c1ac9196bc17f27a046d99ece58f263eaddcba1f096af40ba117602381f7eff07274b33f95be7b2c0283

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            2ea6c5e1e0c0db85d8a5465add40bb9c

            SHA1

            954fce6ae70a9985e5d92231fd7b9cadde577aee

            SHA256

            cc3f4ec127136d081048a68ee2d46a4785ace71438265c5c5ae2867636644f39

            SHA512

            f12394c4de72b1f42fe3216b5d86bae42483b5609644fe551db606d339eca75b4d51e6997a1040f09ea98a3b0f4a9a7374c65e6d4028b61c6dff6d46e8fef863

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            2ea6c5e1e0c0db85d8a5465add40bb9c

            SHA1

            954fce6ae70a9985e5d92231fd7b9cadde577aee

            SHA256

            cc3f4ec127136d081048a68ee2d46a4785ace71438265c5c5ae2867636644f39

            SHA512

            f12394c4de72b1f42fe3216b5d86bae42483b5609644fe551db606d339eca75b4d51e6997a1040f09ea98a3b0f4a9a7374c65e6d4028b61c6dff6d46e8fef863

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            28245e92b1faac3d9797022a941ff53a

            SHA1

            f6752148f6ae8d94a923f17a6f618ac13dbdad83

            SHA256

            febceb32985f33471b14395359e47a5e2295cec103e571cff5f2a33a6afa9408

            SHA512

            44a1330eeed21a59c6f29232f4dff791c9a92f23820ac0bd0c15774f051ca287f87ceece38e79066d2c193b156170b547305a124a97d1a7b0521b6c9f099de97

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            656fbe2e661312325e1a1491913b900e

            SHA1

            6063c92b8b1718fc48732a5143ace020f6fcac9a

            SHA256

            5323083c49f129578f49478cc5450ce4c0db40290e5cd5a59839e8744a33073b

            SHA512

            e0af20c1912948e2facd8be15d04bac57299efa68ba5a672eb25d36cd9318c2f7a91c895b6aa66eebc80e75c7a41185583dd59f41b938d4bd170fa9e546b3868

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e7571f6ed79f9ba71aabce14634eb84f

            SHA1

            2523b2958845e042bdc2b66f32cc242592e735c8

            SHA256

            263709b25e8a98aaa4cc6b82561a36c88a92b82272bfe533736495987335a5c3

            SHA512

            836d7443076ca091a7502ec080f513d6920c709947e8f332018379875b41853dc7652d7acfb516e70a8200ac206f7b3366293803af64cce025271ade565eca4d

          • memory/268-58-0x0000000000000000-mapping.dmp

          • memory/816-88-0x0000000000000000-mapping.dmp

          • memory/828-62-0x0000000000000000-mapping.dmp

          • memory/900-71-0x0000000000000000-mapping.dmp

          • memory/1356-65-0x0000000000000000-mapping.dmp

          • memory/1476-57-0x0000000000000000-mapping.dmp

          • memory/1652-61-0x0000000000000000-mapping.dmp

          • memory/1724-54-0x0000000075DF1000-0x0000000075DF3000-memory.dmp

            Filesize

            8KB

          • memory/1724-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1724-63-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1724-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1728-82-0x0000000000000000-mapping.dmp

          • memory/1832-81-0x0000000000000000-mapping.dmp

          • memory/1908-87-0x0000000000000000-mapping.dmp

          • memory/1916-77-0x0000000000000000-mapping.dmp