Analysis
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max time kernel
48s -
max time network
34s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
25-11-2022 22:19
Static task
static1
Behavioral task
behavioral1
Sample
37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe
Resource
win10v2004-20221111-en
General
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Target
37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe
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Size
562KB
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MD5
50df2352d8d1d223f651467157e03c16
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SHA1
1f94ec4d79516c4b0d0e41eb7559615ec007369b
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SHA256
37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196
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SHA512
000f2aabfd7809da031a752140e016d1529d6a828c4e8179a3bf7a3b98ccf259fffff500ea9bb6cd7fa8fd6e8d3a361ce0563878720292e3546e47a2a6f04f49
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SSDEEP
12288:VPRYzJbfGkPvGg85WqOxmi0waAbxxUMIoII/vNIv1+:cz9f7XGgXnOAtxRqI/lY1
Malware Config
Signatures
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Drops file in Drivers directory 1 IoCs
description ioc Process File created C:\Windows\system32\drivers\nethfdrv.sys 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe -
Executes dropped EXE 5 IoCs
pid Process 872 installd.exe 292 nethtsrv.exe 1264 netupdsrv.exe 1048 nethtsrv.exe 1056 netupdsrv.exe -
Loads dropped DLL 13 IoCs
pid Process 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 872 installd.exe 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 292 nethtsrv.exe 292 nethtsrv.exe 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 1048 nethtsrv.exe 1048 nethtsrv.exe 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Drops file in System32 directory 5 IoCs
description ioc Process File created C:\Windows\SysWOW64\installd.exe 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe File created C:\Windows\SysWOW64\nethtsrv.exe 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe File created C:\Windows\SysWOW64\netupdsrv.exe 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe File created C:\Windows\SysWOW64\hfnapi.dll 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe File created C:\Windows\SysWOW64\hfpapi.dll 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe -
Drops file in Program Files directory 3 IoCs
description ioc Process File created C:\Program Files (x86)\Common Files\config\uninstinethnfd.exe 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe File created C:\Program Files (x86)\Common Files\Config\data.xml 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe File created C:\Program Files (x86)\Common Files\Config\ver.xml 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Runs net.exe
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Suspicious behavior: LoadsDriver 1 IoCs
pid Process 460 Process not Found -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1048 nethtsrv.exe -
Suspicious use of WriteProcessMemory 50 IoCs
description pid Process procid_target PID 1796 wrote to memory of 948 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 28 PID 1796 wrote to memory of 948 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 28 PID 1796 wrote to memory of 948 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 28 PID 1796 wrote to memory of 948 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 28 PID 948 wrote to memory of 1484 948 net.exe 30 PID 948 wrote to memory of 1484 948 net.exe 30 PID 948 wrote to memory of 1484 948 net.exe 30 PID 948 wrote to memory of 1484 948 net.exe 30 PID 1796 wrote to memory of 1476 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 31 PID 1796 wrote to memory of 1476 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 31 PID 1796 wrote to memory of 1476 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 31 PID 1796 wrote to memory of 1476 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 31 PID 1476 wrote to memory of 340 1476 net.exe 33 PID 1476 wrote to memory of 340 1476 net.exe 33 PID 1476 wrote to memory of 340 1476 net.exe 33 PID 1476 wrote to memory of 340 1476 net.exe 33 PID 1796 wrote to memory of 872 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 34 PID 1796 wrote to memory of 872 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 34 PID 1796 wrote to memory of 872 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 34 PID 1796 wrote to memory of 872 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 34 PID 1796 wrote to memory of 872 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 34 PID 1796 wrote to memory of 872 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 34 PID 1796 wrote to memory of 872 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 34 PID 1796 wrote to memory of 292 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 36 PID 1796 wrote to memory of 292 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 36 PID 1796 wrote to memory of 292 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 36 PID 1796 wrote to memory of 292 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 36 PID 1796 wrote to memory of 1264 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 38 PID 1796 wrote to memory of 1264 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 38 PID 1796 wrote to memory of 1264 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 38 PID 1796 wrote to memory of 1264 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 38 PID 1796 wrote to memory of 1264 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 38 PID 1796 wrote to memory of 1264 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 38 PID 1796 wrote to memory of 1264 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 38 PID 1796 wrote to memory of 1040 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 40 PID 1796 wrote to memory of 1040 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 40 PID 1796 wrote to memory of 1040 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 40 PID 1796 wrote to memory of 1040 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 40 PID 1040 wrote to memory of 1420 1040 net.exe 42 PID 1040 wrote to memory of 1420 1040 net.exe 42 PID 1040 wrote to memory of 1420 1040 net.exe 42 PID 1040 wrote to memory of 1420 1040 net.exe 42 PID 1796 wrote to memory of 1528 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 44 PID 1796 wrote to memory of 1528 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 44 PID 1796 wrote to memory of 1528 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 44 PID 1796 wrote to memory of 1528 1796 37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe 44 PID 1528 wrote to memory of 1224 1528 net.exe 46 PID 1528 wrote to memory of 1224 1528 net.exe 46 PID 1528 wrote to memory of 1224 1528 net.exe 46 PID 1528 wrote to memory of 1224 1528 net.exe 46
Processes
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C:\Users\Admin\AppData\Local\Temp\37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.exe"C:\Users\Admin\AppData\Local\Temp\37a2ae2051e7879e5bb7457786d4990da4306ceeaf943e078b7dc9081d9cf196.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:1796 -
C:\Windows\SysWOW64\net.exenet stop nethttpservice2⤵
- Suspicious use of WriteProcessMemory
PID:948 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 stop nethttpservice3⤵PID:1484
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C:\Windows\SysWOW64\net.exenet stop serviceupdater2⤵
- Suspicious use of WriteProcessMemory
PID:1476 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 stop serviceupdater3⤵PID:340
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C:\Windows\SysWOW64\installd.exe"C:\Windows\system32\installd.exe" nethfdrv2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:872
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C:\Windows\SysWOW64\nethtsrv.exe"C:\Windows\system32\nethtsrv.exe" -nfdi2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:292
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C:\Windows\SysWOW64\netupdsrv.exe"C:\Windows\system32\netupdsrv.exe" -nfdi2⤵
- Executes dropped EXE
PID:1264
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C:\Windows\SysWOW64\net.exenet start nethttpservice2⤵
- Suspicious use of WriteProcessMemory
PID:1040 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 start nethttpservice3⤵PID:1420
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C:\Windows\SysWOW64\net.exenet start serviceupdater2⤵
- Suspicious use of WriteProcessMemory
PID:1528 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 start serviceupdater3⤵PID:1224
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C:\Windows\SysWOW64\nethtsrv.exeC:\Windows\SysWOW64\nethtsrv.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
PID:1048
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C:\Windows\SysWOW64\netupdsrv.exeC:\Windows\SysWOW64\netupdsrv.exe1⤵
- Executes dropped EXE
PID:1056
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
106KB
MD5db34ae5ab86f64c29cf48bdfaf32b93d
SHA1799d4778ef2179c75bb763c1f5e720d4a1c35a2e
SHA2560f8b7bf9776935968751ef3f9a2d6d961ceff093912404292f559eba593efdb8
SHA512fe0cf367af29ea220c01ef24c499b71354aa31e007c1c2a358ea64877f5a537e7b7ba2c8a46f1680d0945a79edb209ca02cdf323284dae9e0c0eb2237f284aba
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Filesize
244KB
MD5755f7ee40a340e468a44ce19c7e570d6
SHA1bd2b7a3544387a96629e30f0cc3a86d2be8c7eb1
SHA256a265e6fb4f74d1a94c96270e865498d25758efe0efb400a74123ad9669857651
SHA512694f4e3fb0fb2130e26665870937ec26f7d25d66b84ffd1d54cb4efeac4c46141db627a5b9d57403e51d9549e9bd73808849cb3b7ad18c54b7aa1750edfef013
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Filesize
108KB
MD53e4dcb04fed9e799aa3750dae363e769
SHA146ba7436cc972fc65122383ae624b21c4f6d8b36
SHA25661b975bbb320ff70086eb5cb6504f240e302b9638e10d5b469b61e40b9a55273
SHA5124cbe15d1a7c83545072a1168700ba100829343d6c5903fc4f0a601e3264eeb99c6efee30bff9ec2078d1eb18c4af19c7cfb1d0b376d5676b7c3010c8a250f0a0
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Filesize
176KB
MD5ac58c12aa3c04514c6fa22cbf93f404b
SHA1253f7c6c825c26e09fed43ff55e924c8f0ccb768
SHA2563d17b22d7dc053b63495ac72bd8df18d4b7ab71048d52cb102bf1db6c8a28048
SHA512ba2fba9d8018ba86d9b57897804679f1df29bad613895ba885f2d7458737e659cf50ab5014fd8aa0a1a8580d5742a00e2f5834372b392b452bf4ac934de64956
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Filesize
176KB
MD5ac58c12aa3c04514c6fa22cbf93f404b
SHA1253f7c6c825c26e09fed43ff55e924c8f0ccb768
SHA2563d17b22d7dc053b63495ac72bd8df18d4b7ab71048d52cb102bf1db6c8a28048
SHA512ba2fba9d8018ba86d9b57897804679f1df29bad613895ba885f2d7458737e659cf50ab5014fd8aa0a1a8580d5742a00e2f5834372b392b452bf4ac934de64956
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Filesize
159KB
MD54a96da0231687e7d17d457f2b4c15c89
SHA18b6bdb4e862e42fea34fa0be1b30a9616b6d88a3
SHA256d0ef4a03a77834311b7569f6c9079dd23a89db2753ceccd356a274ee0691956b
SHA512db9741442e6ec5d1551d0b1662e625535842992b837dcfb779fdb4c23cc156fb8cc4ee884f0f76f44bc0e9e4b668f3528893c69924fe6d5b778904697074725b
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Filesize
159KB
MD54a96da0231687e7d17d457f2b4c15c89
SHA18b6bdb4e862e42fea34fa0be1b30a9616b6d88a3
SHA256d0ef4a03a77834311b7569f6c9079dd23a89db2753ceccd356a274ee0691956b
SHA512db9741442e6ec5d1551d0b1662e625535842992b837dcfb779fdb4c23cc156fb8cc4ee884f0f76f44bc0e9e4b668f3528893c69924fe6d5b778904697074725b
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Filesize
11KB
MD5c17103ae9072a06da581dec998343fc1
SHA1b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d
SHA256dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f
SHA512d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f
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Filesize
6KB
MD5acc2b699edfea5bf5aae45aba3a41e96
SHA1d2accf4d494e43ceb2cff69abe4dd17147d29cc2
SHA256168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e
SHA512e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe
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Filesize
6KB
MD5acc2b699edfea5bf5aae45aba3a41e96
SHA1d2accf4d494e43ceb2cff69abe4dd17147d29cc2
SHA256168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e
SHA512e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe
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Filesize
6KB
MD5acc2b699edfea5bf5aae45aba3a41e96
SHA1d2accf4d494e43ceb2cff69abe4dd17147d29cc2
SHA256168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e
SHA512e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe
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Filesize
6KB
MD5acc2b699edfea5bf5aae45aba3a41e96
SHA1d2accf4d494e43ceb2cff69abe4dd17147d29cc2
SHA256168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e
SHA512e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe
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Filesize
106KB
MD5db34ae5ab86f64c29cf48bdfaf32b93d
SHA1799d4778ef2179c75bb763c1f5e720d4a1c35a2e
SHA2560f8b7bf9776935968751ef3f9a2d6d961ceff093912404292f559eba593efdb8
SHA512fe0cf367af29ea220c01ef24c499b71354aa31e007c1c2a358ea64877f5a537e7b7ba2c8a46f1680d0945a79edb209ca02cdf323284dae9e0c0eb2237f284aba
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Filesize
106KB
MD5db34ae5ab86f64c29cf48bdfaf32b93d
SHA1799d4778ef2179c75bb763c1f5e720d4a1c35a2e
SHA2560f8b7bf9776935968751ef3f9a2d6d961ceff093912404292f559eba593efdb8
SHA512fe0cf367af29ea220c01ef24c499b71354aa31e007c1c2a358ea64877f5a537e7b7ba2c8a46f1680d0945a79edb209ca02cdf323284dae9e0c0eb2237f284aba
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Filesize
106KB
MD5db34ae5ab86f64c29cf48bdfaf32b93d
SHA1799d4778ef2179c75bb763c1f5e720d4a1c35a2e
SHA2560f8b7bf9776935968751ef3f9a2d6d961ceff093912404292f559eba593efdb8
SHA512fe0cf367af29ea220c01ef24c499b71354aa31e007c1c2a358ea64877f5a537e7b7ba2c8a46f1680d0945a79edb209ca02cdf323284dae9e0c0eb2237f284aba
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Filesize
244KB
MD5755f7ee40a340e468a44ce19c7e570d6
SHA1bd2b7a3544387a96629e30f0cc3a86d2be8c7eb1
SHA256a265e6fb4f74d1a94c96270e865498d25758efe0efb400a74123ad9669857651
SHA512694f4e3fb0fb2130e26665870937ec26f7d25d66b84ffd1d54cb4efeac4c46141db627a5b9d57403e51d9549e9bd73808849cb3b7ad18c54b7aa1750edfef013
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Filesize
244KB
MD5755f7ee40a340e468a44ce19c7e570d6
SHA1bd2b7a3544387a96629e30f0cc3a86d2be8c7eb1
SHA256a265e6fb4f74d1a94c96270e865498d25758efe0efb400a74123ad9669857651
SHA512694f4e3fb0fb2130e26665870937ec26f7d25d66b84ffd1d54cb4efeac4c46141db627a5b9d57403e51d9549e9bd73808849cb3b7ad18c54b7aa1750edfef013
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Filesize
108KB
MD53e4dcb04fed9e799aa3750dae363e769
SHA146ba7436cc972fc65122383ae624b21c4f6d8b36
SHA25661b975bbb320ff70086eb5cb6504f240e302b9638e10d5b469b61e40b9a55273
SHA5124cbe15d1a7c83545072a1168700ba100829343d6c5903fc4f0a601e3264eeb99c6efee30bff9ec2078d1eb18c4af19c7cfb1d0b376d5676b7c3010c8a250f0a0
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Filesize
176KB
MD5ac58c12aa3c04514c6fa22cbf93f404b
SHA1253f7c6c825c26e09fed43ff55e924c8f0ccb768
SHA2563d17b22d7dc053b63495ac72bd8df18d4b7ab71048d52cb102bf1db6c8a28048
SHA512ba2fba9d8018ba86d9b57897804679f1df29bad613895ba885f2d7458737e659cf50ab5014fd8aa0a1a8580d5742a00e2f5834372b392b452bf4ac934de64956
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Filesize
159KB
MD54a96da0231687e7d17d457f2b4c15c89
SHA18b6bdb4e862e42fea34fa0be1b30a9616b6d88a3
SHA256d0ef4a03a77834311b7569f6c9079dd23a89db2753ceccd356a274ee0691956b
SHA512db9741442e6ec5d1551d0b1662e625535842992b837dcfb779fdb4c23cc156fb8cc4ee884f0f76f44bc0e9e4b668f3528893c69924fe6d5b778904697074725b