Analysis

  • max time kernel
    38s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    24/11/2022, 05:35

General

  • Target

    c1859c547f92bb34310cd77e2511ea488392e8c5454eac7edbb2eaf254487229.exe

  • Size

    602KB

  • MD5

    a0d25148151eb7a6dd48874d8f6ecff5

  • SHA1

    89d85036bba4e0b9d3378a504822e7d73a711043

  • SHA256

    c1859c547f92bb34310cd77e2511ea488392e8c5454eac7edbb2eaf254487229

  • SHA512

    745244447ec17d3e15e467f99a2617911d4ed99c7ee8aec28ef3e23ad784408cbbc668616390a73ac1a813d525cc3c910f194c0ccca70ad0d07481d58acdd3ab

  • SSDEEP

    12288:XIny5DYTWdMNm2ugHNaBQ7IAHUPHPO9xqILYSPb2mhDt/:/UTWmNDp8BQcHPa8BnmhD

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\c1859c547f92bb34310cd77e2511ea488392e8c5454eac7edbb2eaf254487229.exe
    "C:\Users\Admin\AppData\Local\Temp\c1859c547f92bb34310cd77e2511ea488392e8c5454eac7edbb2eaf254487229.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:1736
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1500
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1176
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:624
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1136
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1988
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1912
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1388
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:584
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:432
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1612
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:2044
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1772
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:588

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  49fef1f2cf093fe90ab615aad73d3420

                  SHA1

                  7913e076637f1b62c798c77d3d20a6dbf46a2d26

                  SHA256

                  45fe151d42fbb7229634b156c22cf0606c029650266f2d19fac2ce2805970276

                  SHA512

                  ccba9d28871445b4e63858383520acb8f4084be12dc41be7cccee4e48a343741607733ea3a2533513a29549e166103a9b0e28aff312bab2f83dbb87a171e2878

                • C:\Windows\SysWOW64\hfpapi.dll

                  Filesize

                  241KB

                  MD5

                  362068883e6a20726883c13d9b8bcc30

                  SHA1

                  9ac370f801f697923d6a169544d451ba3f5e9c9f

                  SHA256

                  a3102fc6b1660c522580ae32139b30d8f3d9b11d9331217263b3d3f3b8a9d3a4

                  SHA512

                  fc53d565a6419410bb863a0a1a3a90a1fbaf5efb5387a00e361f1306fa86c2f38b347e29efcdd88293fb32743687c77539013fb2fd277b2749a33bb42c14484c

                • C:\Windows\SysWOW64\installd.exe

                  Filesize

                  108KB

                  MD5

                  b95b7a6bbc0e89f41b22900da71d91e3

                  SHA1

                  d665a67772806d49cab560ebdb528c5e2a25adc0

                  SHA256

                  1ac9e10a20acc0b536209bfd444a6b8ac1cbd24cede1c0eb0503c67aeaa3b22a

                  SHA512

                  4060ff98fa2aae3149effe9ffcab3feb8593ecbb8a1c1e6d1d87a89d5532e54865cdd586201085a9265a01124747ee73def3e2f4c20b31103ec0a20d5d55b957

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  f75ea9d2100c024f8202e6980690bf50

                  SHA1

                  8d380ea6cd542a549d8a965e4ae6b5b9eb5b5a90

                  SHA256

                  70ef89f929e5baad15597c8dc46023fab6155db2055a3ee784e21a50a3d5de83

                  SHA512

                  4a00728aa4d4c4cfe715ca570c5684cf0fa01a788fe7584db1db61f80b07db0b8cb4c010acdaf5f7a013be20c934b478da1df794861834a710f2c578cbcaa5fd

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  f75ea9d2100c024f8202e6980690bf50

                  SHA1

                  8d380ea6cd542a549d8a965e4ae6b5b9eb5b5a90

                  SHA256

                  70ef89f929e5baad15597c8dc46023fab6155db2055a3ee784e21a50a3d5de83

                  SHA512

                  4a00728aa4d4c4cfe715ca570c5684cf0fa01a788fe7584db1db61f80b07db0b8cb4c010acdaf5f7a013be20c934b478da1df794861834a710f2c578cbcaa5fd

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  159KB

                  MD5

                  9eb4267a1995b46a1aec583a6c6a1a2d

                  SHA1

                  bd2ad545aa81797d02966bdbb5f386a75b89a437

                  SHA256

                  976b39b35c2422e39d8b24508c98c2e07650de2d60f8058d0b3c674e3128202f

                  SHA512

                  76666e9b075f4efc8508404921978ae74b7bd3fcc122b2eeb5b3c420b822dff8d9fb3e1976c70bb42124070211d440447b1af233e18f0383fb8602d2916c6e1d

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  159KB

                  MD5

                  9eb4267a1995b46a1aec583a6c6a1a2d

                  SHA1

                  bd2ad545aa81797d02966bdbb5f386a75b89a437

                  SHA256

                  976b39b35c2422e39d8b24508c98c2e07650de2d60f8058d0b3c674e3128202f

                  SHA512

                  76666e9b075f4efc8508404921978ae74b7bd3fcc122b2eeb5b3c420b822dff8d9fb3e1976c70bb42124070211d440447b1af233e18f0383fb8602d2916c6e1d

                • \Users\Admin\AppData\Local\Temp\nsiA40.tmp\System.dll

                  Filesize

                  11KB

                  MD5

                  c17103ae9072a06da581dec998343fc1

                  SHA1

                  b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

                  SHA256

                  dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

                  SHA512

                  d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

                • \Users\Admin\AppData\Local\Temp\nsiA40.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Users\Admin\AppData\Local\Temp\nsiA40.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Users\Admin\AppData\Local\Temp\nsiA40.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Users\Admin\AppData\Local\Temp\nsiA40.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  49fef1f2cf093fe90ab615aad73d3420

                  SHA1

                  7913e076637f1b62c798c77d3d20a6dbf46a2d26

                  SHA256

                  45fe151d42fbb7229634b156c22cf0606c029650266f2d19fac2ce2805970276

                  SHA512

                  ccba9d28871445b4e63858383520acb8f4084be12dc41be7cccee4e48a343741607733ea3a2533513a29549e166103a9b0e28aff312bab2f83dbb87a171e2878

                • \Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  49fef1f2cf093fe90ab615aad73d3420

                  SHA1

                  7913e076637f1b62c798c77d3d20a6dbf46a2d26

                  SHA256

                  45fe151d42fbb7229634b156c22cf0606c029650266f2d19fac2ce2805970276

                  SHA512

                  ccba9d28871445b4e63858383520acb8f4084be12dc41be7cccee4e48a343741607733ea3a2533513a29549e166103a9b0e28aff312bab2f83dbb87a171e2878

                • \Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  49fef1f2cf093fe90ab615aad73d3420

                  SHA1

                  7913e076637f1b62c798c77d3d20a6dbf46a2d26

                  SHA256

                  45fe151d42fbb7229634b156c22cf0606c029650266f2d19fac2ce2805970276

                  SHA512

                  ccba9d28871445b4e63858383520acb8f4084be12dc41be7cccee4e48a343741607733ea3a2533513a29549e166103a9b0e28aff312bab2f83dbb87a171e2878

                • \Windows\SysWOW64\hfpapi.dll

                  Filesize

                  241KB

                  MD5

                  362068883e6a20726883c13d9b8bcc30

                  SHA1

                  9ac370f801f697923d6a169544d451ba3f5e9c9f

                  SHA256

                  a3102fc6b1660c522580ae32139b30d8f3d9b11d9331217263b3d3f3b8a9d3a4

                  SHA512

                  fc53d565a6419410bb863a0a1a3a90a1fbaf5efb5387a00e361f1306fa86c2f38b347e29efcdd88293fb32743687c77539013fb2fd277b2749a33bb42c14484c

                • \Windows\SysWOW64\hfpapi.dll

                  Filesize

                  241KB

                  MD5

                  362068883e6a20726883c13d9b8bcc30

                  SHA1

                  9ac370f801f697923d6a169544d451ba3f5e9c9f

                  SHA256

                  a3102fc6b1660c522580ae32139b30d8f3d9b11d9331217263b3d3f3b8a9d3a4

                  SHA512

                  fc53d565a6419410bb863a0a1a3a90a1fbaf5efb5387a00e361f1306fa86c2f38b347e29efcdd88293fb32743687c77539013fb2fd277b2749a33bb42c14484c

                • \Windows\SysWOW64\installd.exe

                  Filesize

                  108KB

                  MD5

                  b95b7a6bbc0e89f41b22900da71d91e3

                  SHA1

                  d665a67772806d49cab560ebdb528c5e2a25adc0

                  SHA256

                  1ac9e10a20acc0b536209bfd444a6b8ac1cbd24cede1c0eb0503c67aeaa3b22a

                  SHA512

                  4060ff98fa2aae3149effe9ffcab3feb8593ecbb8a1c1e6d1d87a89d5532e54865cdd586201085a9265a01124747ee73def3e2f4c20b31103ec0a20d5d55b957

                • \Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  f75ea9d2100c024f8202e6980690bf50

                  SHA1

                  8d380ea6cd542a549d8a965e4ae6b5b9eb5b5a90

                  SHA256

                  70ef89f929e5baad15597c8dc46023fab6155db2055a3ee784e21a50a3d5de83

                  SHA512

                  4a00728aa4d4c4cfe715ca570c5684cf0fa01a788fe7584db1db61f80b07db0b8cb4c010acdaf5f7a013be20c934b478da1df794861834a710f2c578cbcaa5fd

                • \Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  159KB

                  MD5

                  9eb4267a1995b46a1aec583a6c6a1a2d

                  SHA1

                  bd2ad545aa81797d02966bdbb5f386a75b89a437

                  SHA256

                  976b39b35c2422e39d8b24508c98c2e07650de2d60f8058d0b3c674e3128202f

                  SHA512

                  76666e9b075f4efc8508404921978ae74b7bd3fcc122b2eeb5b3c420b822dff8d9fb3e1976c70bb42124070211d440447b1af233e18f0383fb8602d2916c6e1d

                • memory/1736-54-0x0000000075DA1000-0x0000000075DA3000-memory.dmp

                  Filesize

                  8KB

                • memory/1736-55-0x0000000000360000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.4MB

                • memory/1736-90-0x0000000000360000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.4MB