Analysis
-
max time kernel
153s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
23-11-2022 10:27
Static task
static1
Behavioral task
behavioral1
Sample
439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe
Resource
win10v2004-20220812-en
General
-
Target
439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe
-
Size
603KB
-
MD5
f03f521c8ac5c009f4e7d0108b72654c
-
SHA1
a390f06fe8d08fd5791e61e674732605658d550b
-
SHA256
439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1
-
SHA512
3907aad901f93e09fb470df7569bc10a70e07f33de70a7ef516091503e2339999f22ec3dbfbf05e7b99f66cea628b6fe8f69008f4514a8aeb7df56d407c78ac1
-
SSDEEP
12288:bIny5DYTmI2Yvx46QHMdOJ6YbAIyvKwNw0GX37Cl:jUTmdYvSvMdOJ6Gv6Nw/37i
Malware Config
Signatures
-
Drops file in Drivers directory 1 IoCs
Processes:
439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exedescription ioc process File created C:\Windows\system32\drivers\nethfdrv.sys 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe -
Executes dropped EXE 5 IoCs
Processes:
installd.exenethtsrv.exenetupdsrv.exenethtsrv.exenetupdsrv.exepid process 1256 installd.exe 4300 nethtsrv.exe 4692 netupdsrv.exe 100 nethtsrv.exe 2444 netupdsrv.exe -
Loads dropped DLL 14 IoCs
Processes:
439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exeinstalld.exenethtsrv.exenethtsrv.exepid process 4780 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe 4780 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe 4780 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe 4780 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe 4780 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe 1256 installd.exe 4300 nethtsrv.exe 4300 nethtsrv.exe 4780 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe 4780 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe 100 nethtsrv.exe 100 nethtsrv.exe 4780 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe 4780 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe -
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
Processes:
439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exedescription ioc process File created C:\Windows\SysWOW64\installd.exe 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe File created C:\Windows\SysWOW64\nethtsrv.exe 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe File created C:\Windows\SysWOW64\netupdsrv.exe 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe File created C:\Windows\SysWOW64\hfnapi.dll 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe File created C:\Windows\SysWOW64\hfpapi.dll 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe -
Drops file in Program Files directory 3 IoCs
Processes:
439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exedescription ioc process File created C:\Program Files (x86)\Common Files\Config\data.xml 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe File created C:\Program Files (x86)\Common Files\Config\ver.xml 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe File created C:\Program Files (x86)\Common Files\config\uninstinethnfd.exe 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe -
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
Processes:
nethtsrv.exedescription ioc process Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections nethtsrv.exe -
Runs net.exe
-
Suspicious behavior: LoadsDriver 1 IoCs
Processes:
pid process 668 -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
nethtsrv.exedescription pid process Token: SeDebugPrivilege 100 nethtsrv.exe -
Suspicious use of WriteProcessMemory 33 IoCs
Processes:
439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exenet.exenet.exenet.exenet.exedescription pid process target process PID 4780 wrote to memory of 4752 4780 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe net.exe PID 4780 wrote to memory of 4752 4780 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe net.exe PID 4780 wrote to memory of 4752 4780 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe net.exe PID 4752 wrote to memory of 4380 4752 net.exe net1.exe PID 4752 wrote to memory of 4380 4752 net.exe net1.exe PID 4752 wrote to memory of 4380 4752 net.exe net1.exe PID 4780 wrote to memory of 4052 4780 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe net.exe PID 4780 wrote to memory of 4052 4780 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe net.exe PID 4780 wrote to memory of 4052 4780 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe net.exe PID 4052 wrote to memory of 1804 4052 net.exe net1.exe PID 4052 wrote to memory of 1804 4052 net.exe net1.exe PID 4052 wrote to memory of 1804 4052 net.exe net1.exe PID 4780 wrote to memory of 1256 4780 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe installd.exe PID 4780 wrote to memory of 1256 4780 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe installd.exe PID 4780 wrote to memory of 1256 4780 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe installd.exe PID 4780 wrote to memory of 4300 4780 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe nethtsrv.exe PID 4780 wrote to memory of 4300 4780 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe nethtsrv.exe PID 4780 wrote to memory of 4300 4780 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe nethtsrv.exe PID 4780 wrote to memory of 4692 4780 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe netupdsrv.exe PID 4780 wrote to memory of 4692 4780 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe netupdsrv.exe PID 4780 wrote to memory of 4692 4780 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe netupdsrv.exe PID 4780 wrote to memory of 4864 4780 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe net.exe PID 4780 wrote to memory of 4864 4780 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe net.exe PID 4780 wrote to memory of 4864 4780 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe net.exe PID 4864 wrote to memory of 4996 4864 net.exe net1.exe PID 4864 wrote to memory of 4996 4864 net.exe net1.exe PID 4864 wrote to memory of 4996 4864 net.exe net1.exe PID 4780 wrote to memory of 1460 4780 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe net.exe PID 4780 wrote to memory of 1460 4780 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe net.exe PID 4780 wrote to memory of 1460 4780 439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe net.exe PID 1460 wrote to memory of 3680 1460 net.exe net1.exe PID 1460 wrote to memory of 3680 1460 net.exe net1.exe PID 1460 wrote to memory of 3680 1460 net.exe net1.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.exe"C:\Users\Admin\AppData\Local\Temp\439faf328724ae22695612d74e164bae1c539316076575376181899c8366b6b1.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:4780 -
C:\Windows\SysWOW64\net.exenet stop nethttpservice2⤵
- Suspicious use of WriteProcessMemory
PID:4752 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 stop nethttpservice3⤵PID:4380
-
C:\Windows\SysWOW64\net.exenet stop serviceupdater2⤵
- Suspicious use of WriteProcessMemory
PID:4052 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 stop serviceupdater3⤵PID:1804
-
C:\Windows\SysWOW64\installd.exe"C:\Windows\system32\installd.exe" nethfdrv2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:1256 -
C:\Windows\SysWOW64\nethtsrv.exe"C:\Windows\system32\nethtsrv.exe" -nfdi2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:4300 -
C:\Windows\SysWOW64\netupdsrv.exe"C:\Windows\system32\netupdsrv.exe" -nfdi2⤵
- Executes dropped EXE
PID:4692 -
C:\Windows\SysWOW64\net.exenet start nethttpservice2⤵
- Suspicious use of WriteProcessMemory
PID:4864 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 start nethttpservice3⤵PID:4996
-
C:\Windows\SysWOW64\net.exenet start serviceupdater2⤵
- Suspicious use of WriteProcessMemory
PID:1460 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 start serviceupdater3⤵PID:3680
-
C:\Windows\SysWOW64\nethtsrv.exeC:\Windows\SysWOW64\nethtsrv.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
PID:100
-
C:\Windows\SysWOW64\netupdsrv.exeC:\Windows\SysWOW64\netupdsrv.exe1⤵
- Executes dropped EXE
PID:2444
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
11KB
MD5c17103ae9072a06da581dec998343fc1
SHA1b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d
SHA256dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f
SHA512d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f
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Filesize
6KB
MD5acc2b699edfea5bf5aae45aba3a41e96
SHA1d2accf4d494e43ceb2cff69abe4dd17147d29cc2
SHA256168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e
SHA512e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe
-
Filesize
6KB
MD5acc2b699edfea5bf5aae45aba3a41e96
SHA1d2accf4d494e43ceb2cff69abe4dd17147d29cc2
SHA256168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e
SHA512e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe
-
Filesize
6KB
MD5acc2b699edfea5bf5aae45aba3a41e96
SHA1d2accf4d494e43ceb2cff69abe4dd17147d29cc2
SHA256168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e
SHA512e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe
-
Filesize
6KB
MD5acc2b699edfea5bf5aae45aba3a41e96
SHA1d2accf4d494e43ceb2cff69abe4dd17147d29cc2
SHA256168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e
SHA512e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe
-
Filesize
6KB
MD5acc2b699edfea5bf5aae45aba3a41e96
SHA1d2accf4d494e43ceb2cff69abe4dd17147d29cc2
SHA256168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e
SHA512e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe
-
Filesize
6KB
MD5acc2b699edfea5bf5aae45aba3a41e96
SHA1d2accf4d494e43ceb2cff69abe4dd17147d29cc2
SHA256168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e
SHA512e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe
-
Filesize
6KB
MD5acc2b699edfea5bf5aae45aba3a41e96
SHA1d2accf4d494e43ceb2cff69abe4dd17147d29cc2
SHA256168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e
SHA512e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe
-
Filesize
6KB
MD5acc2b699edfea5bf5aae45aba3a41e96
SHA1d2accf4d494e43ceb2cff69abe4dd17147d29cc2
SHA256168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e
SHA512e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe
-
Filesize
106KB
MD53cb0b87bc1cfa5e5a2bbd23964d3eb96
SHA183b8e974d46aa675e6b799839867307ab89f71f3
SHA256ccdaeee39c7df6e23e6d66853cb4a852a3acdd734cf4fd2a580d07dd2d56b242
SHA5122a735bc3f7e45472438744f015e289f34f024d6a7a14ea5120837041c0550e6c7fd9da6570aa45b2a0470852168c655d3bb5f49811667c77f310253778b844c6
-
Filesize
106KB
MD53cb0b87bc1cfa5e5a2bbd23964d3eb96
SHA183b8e974d46aa675e6b799839867307ab89f71f3
SHA256ccdaeee39c7df6e23e6d66853cb4a852a3acdd734cf4fd2a580d07dd2d56b242
SHA5122a735bc3f7e45472438744f015e289f34f024d6a7a14ea5120837041c0550e6c7fd9da6570aa45b2a0470852168c655d3bb5f49811667c77f310253778b844c6
-
Filesize
106KB
MD53cb0b87bc1cfa5e5a2bbd23964d3eb96
SHA183b8e974d46aa675e6b799839867307ab89f71f3
SHA256ccdaeee39c7df6e23e6d66853cb4a852a3acdd734cf4fd2a580d07dd2d56b242
SHA5122a735bc3f7e45472438744f015e289f34f024d6a7a14ea5120837041c0550e6c7fd9da6570aa45b2a0470852168c655d3bb5f49811667c77f310253778b844c6
-
Filesize
106KB
MD53cb0b87bc1cfa5e5a2bbd23964d3eb96
SHA183b8e974d46aa675e6b799839867307ab89f71f3
SHA256ccdaeee39c7df6e23e6d66853cb4a852a3acdd734cf4fd2a580d07dd2d56b242
SHA5122a735bc3f7e45472438744f015e289f34f024d6a7a14ea5120837041c0550e6c7fd9da6570aa45b2a0470852168c655d3bb5f49811667c77f310253778b844c6
-
Filesize
244KB
MD5ed212d156d72a7f4f60ac92674b49ff8
SHA13ae73bbe3487174984ad906794baa05f8312efe3
SHA2565ee111ef82388b7dfcb3fbe3b8f5b4eea632adbd320f09541eaf6d848631e522
SHA512f2111d4eb6ff03c6462059b97223decaf9f55fcd0988307f7e6b928dd59143956742e29f6e0fc2f6cca7a5610e02e1066b779d29a6f5809c118bda0a53e30c77
-
Filesize
244KB
MD5ed212d156d72a7f4f60ac92674b49ff8
SHA13ae73bbe3487174984ad906794baa05f8312efe3
SHA2565ee111ef82388b7dfcb3fbe3b8f5b4eea632adbd320f09541eaf6d848631e522
SHA512f2111d4eb6ff03c6462059b97223decaf9f55fcd0988307f7e6b928dd59143956742e29f6e0fc2f6cca7a5610e02e1066b779d29a6f5809c118bda0a53e30c77
-
Filesize
244KB
MD5ed212d156d72a7f4f60ac92674b49ff8
SHA13ae73bbe3487174984ad906794baa05f8312efe3
SHA2565ee111ef82388b7dfcb3fbe3b8f5b4eea632adbd320f09541eaf6d848631e522
SHA512f2111d4eb6ff03c6462059b97223decaf9f55fcd0988307f7e6b928dd59143956742e29f6e0fc2f6cca7a5610e02e1066b779d29a6f5809c118bda0a53e30c77
-
Filesize
108KB
MD5ef6b82d2895ebb52594cf2d2ff07660e
SHA1b447117f481910ae42844ab6930adc4f0c12f6cd
SHA25679fdd6f10e5ca5f9942e582c4e2c1e7b11f2ed462a59135c30e4103dee99222b
SHA5124ae567bd5eee42aec49b0f5904a3731490e060de3e07287f23a9856cc9fe5be335a396211bf3fd556c64544873116013381335b43fc19aa61ddc6b827f0c5dc7
-
Filesize
108KB
MD5ef6b82d2895ebb52594cf2d2ff07660e
SHA1b447117f481910ae42844ab6930adc4f0c12f6cd
SHA25679fdd6f10e5ca5f9942e582c4e2c1e7b11f2ed462a59135c30e4103dee99222b
SHA5124ae567bd5eee42aec49b0f5904a3731490e060de3e07287f23a9856cc9fe5be335a396211bf3fd556c64544873116013381335b43fc19aa61ddc6b827f0c5dc7
-
Filesize
176KB
MD5638c403eaf478c34722d13a441adb7fa
SHA1f123ab42e17d7b62dd2046984f53ddccb84f9d9b
SHA25654a2a6f70f5c0b24fef691fbf76826a82356aec526af6dde3d3953e514df3de3
SHA512ed536682f360240c96cbd5b3052f2f2671b84419dc405d0b15f6322808a8103cc65b5ff22b327989ff1e97e9a8e49419bfa44bf5fc8a519cac8739477c56265e
-
Filesize
176KB
MD5638c403eaf478c34722d13a441adb7fa
SHA1f123ab42e17d7b62dd2046984f53ddccb84f9d9b
SHA25654a2a6f70f5c0b24fef691fbf76826a82356aec526af6dde3d3953e514df3de3
SHA512ed536682f360240c96cbd5b3052f2f2671b84419dc405d0b15f6322808a8103cc65b5ff22b327989ff1e97e9a8e49419bfa44bf5fc8a519cac8739477c56265e
-
Filesize
176KB
MD5638c403eaf478c34722d13a441adb7fa
SHA1f123ab42e17d7b62dd2046984f53ddccb84f9d9b
SHA25654a2a6f70f5c0b24fef691fbf76826a82356aec526af6dde3d3953e514df3de3
SHA512ed536682f360240c96cbd5b3052f2f2671b84419dc405d0b15f6322808a8103cc65b5ff22b327989ff1e97e9a8e49419bfa44bf5fc8a519cac8739477c56265e
-
Filesize
158KB
MD52d74d6542291b882682ed88548c7924a
SHA1145a0be6a55049257ce30cf28b54fc2b381e3dd1
SHA2560ede8b79ac04b796d2b6a8f7d604507a620203384ca0e1c37e32e68236a5c0e5
SHA5120d16582826366738b9c544ff9ac0c0e17438e2513422ccbaa9660f94ab568a2281c86abeb863f14ee26ed6cc56d981571c102e1970850d080acfe4ea168d7340
-
Filesize
158KB
MD52d74d6542291b882682ed88548c7924a
SHA1145a0be6a55049257ce30cf28b54fc2b381e3dd1
SHA2560ede8b79ac04b796d2b6a8f7d604507a620203384ca0e1c37e32e68236a5c0e5
SHA5120d16582826366738b9c544ff9ac0c0e17438e2513422ccbaa9660f94ab568a2281c86abeb863f14ee26ed6cc56d981571c102e1970850d080acfe4ea168d7340
-
Filesize
158KB
MD52d74d6542291b882682ed88548c7924a
SHA1145a0be6a55049257ce30cf28b54fc2b381e3dd1
SHA2560ede8b79ac04b796d2b6a8f7d604507a620203384ca0e1c37e32e68236a5c0e5
SHA5120d16582826366738b9c544ff9ac0c0e17438e2513422ccbaa9660f94ab568a2281c86abeb863f14ee26ed6cc56d981571c102e1970850d080acfe4ea168d7340