Analysis
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max time kernel
188s -
max time network
191s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
25-11-2022 13:25
Static task
static1
Behavioral task
behavioral1
Sample
f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe
Resource
win10v2004-20221111-en
General
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Target
f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe
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Size
561KB
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MD5
f14bb53eb842a3b0da41266d3babf4c5
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SHA1
30ebdf8caaafee62686571652121653912520208
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SHA256
f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341
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SHA512
c5b8b4de527db605bedad85dc7a506e3bb45528904502bb4f97514abda71189d6eeeea9047aabab19e5000b2a3320b0eb8861f04ccc8d0557c0c54cf7e044a8b
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SSDEEP
12288:RPRYzebfvPj7ZNgfRhnPskE1SIzKfZDlj9W:Qzyfj7ZNgdkkkYp
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 f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe -
Executes dropped EXE 5 IoCs
pid Process 1252 installd.exe 2200 nethtsrv.exe 3636 netupdsrv.exe 3612 nethtsrv.exe 4284 netupdsrv.exe -
Loads dropped DLL 14 IoCs
pid Process 4860 f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe 4860 f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe 4860 f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe 4860 f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe 4860 f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe 1252 installd.exe 2200 nethtsrv.exe 2200 nethtsrv.exe 4860 f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe 4860 f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe 3612 nethtsrv.exe 3612 nethtsrv.exe 4860 f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe 4860 f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.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\hfnapi.dll f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe File created C:\Windows\SysWOW64\hfpapi.dll f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe File created C:\Windows\SysWOW64\installd.exe f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe File created C:\Windows\SysWOW64\nethtsrv.exe f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe File created C:\Windows\SysWOW64\netupdsrv.exe f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe -
Drops file in Program Files directory 3 IoCs
description ioc Process File created C:\Program Files (x86)\Common Files\Config\data.xml f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe File created C:\Program Files (x86)\Common Files\Config\ver.xml f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe File created C:\Program Files (x86)\Common Files\config\uninstinethnfd.exe f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies data under HKEY_USERS 1 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections nethtsrv.exe -
Runs net.exe
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Suspicious behavior: LoadsDriver 1 IoCs
pid Process 656 Process not Found -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3612 nethtsrv.exe -
Suspicious use of WriteProcessMemory 33 IoCs
description pid Process procid_target PID 4860 wrote to memory of 792 4860 f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe 86 PID 4860 wrote to memory of 792 4860 f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe 86 PID 4860 wrote to memory of 792 4860 f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe 86 PID 792 wrote to memory of 3512 792 net.exe 88 PID 792 wrote to memory of 3512 792 net.exe 88 PID 792 wrote to memory of 3512 792 net.exe 88 PID 4860 wrote to memory of 3576 4860 f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe 89 PID 4860 wrote to memory of 3576 4860 f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe 89 PID 4860 wrote to memory of 3576 4860 f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe 89 PID 3576 wrote to memory of 4236 3576 net.exe 91 PID 3576 wrote to memory of 4236 3576 net.exe 91 PID 3576 wrote to memory of 4236 3576 net.exe 91 PID 4860 wrote to memory of 1252 4860 f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe 92 PID 4860 wrote to memory of 1252 4860 f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe 92 PID 4860 wrote to memory of 1252 4860 f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe 92 PID 4860 wrote to memory of 2200 4860 f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe 94 PID 4860 wrote to memory of 2200 4860 f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe 94 PID 4860 wrote to memory of 2200 4860 f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe 94 PID 4860 wrote to memory of 3636 4860 f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe 96 PID 4860 wrote to memory of 3636 4860 f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe 96 PID 4860 wrote to memory of 3636 4860 f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe 96 PID 4860 wrote to memory of 1980 4860 f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe 98 PID 4860 wrote to memory of 1980 4860 f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe 98 PID 4860 wrote to memory of 1980 4860 f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe 98 PID 1980 wrote to memory of 3028 1980 net.exe 100 PID 1980 wrote to memory of 3028 1980 net.exe 100 PID 1980 wrote to memory of 3028 1980 net.exe 100 PID 4860 wrote to memory of 1392 4860 f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe 102 PID 4860 wrote to memory of 1392 4860 f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe 102 PID 4860 wrote to memory of 1392 4860 f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe 102 PID 1392 wrote to memory of 1920 1392 net.exe 104 PID 1392 wrote to memory of 1920 1392 net.exe 104 PID 1392 wrote to memory of 1920 1392 net.exe 104
Processes
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C:\Users\Admin\AppData\Local\Temp\f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.exe"C:\Users\Admin\AppData\Local\Temp\f1ff818ae13f53311472bb01cc9ee9396a77a227a50837e100940be66d702341.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:4860 -
C:\Windows\SysWOW64\net.exenet stop nethttpservice2⤵
- Suspicious use of WriteProcessMemory
PID:792 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 stop nethttpservice3⤵PID:3512
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C:\Windows\SysWOW64\net.exenet stop serviceupdater2⤵
- Suspicious use of WriteProcessMemory
PID:3576 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 stop serviceupdater3⤵PID:4236
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C:\Windows\SysWOW64\installd.exe"C:\Windows\system32\installd.exe" nethfdrv2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:1252
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-
C:\Windows\SysWOW64\nethtsrv.exe"C:\Windows\system32\nethtsrv.exe" -nfdi2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:2200
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C:\Windows\SysWOW64\netupdsrv.exe"C:\Windows\system32\netupdsrv.exe" -nfdi2⤵
- Executes dropped EXE
PID:3636
-
-
C:\Windows\SysWOW64\net.exenet start nethttpservice2⤵
- Suspicious use of WriteProcessMemory
PID:1980 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 start nethttpservice3⤵PID:3028
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C:\Windows\SysWOW64\net.exenet start serviceupdater2⤵
- Suspicious use of WriteProcessMemory
PID:1392 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 start serviceupdater3⤵PID:1920
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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:3612
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C:\Windows\SysWOW64\netupdsrv.exeC:\Windows\SysWOW64\netupdsrv.exe1⤵
- Executes dropped EXE
PID:4284
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
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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
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
MD512110f2d3f10f992b8c74ac3dd9a3f5b
SHA1f61a4c37a7835e5838a693c6ccf25d8ba4c9a8cc
SHA256f47f36063a896ea4f8598fc0803827f2cb26344eb42b945e22fa09df43d21838
SHA51225a1e3bc05c4315d2d72ca2544853f60208fffac4e3ddfed418bb4fc496e7f56f61c7232eb95c58a5f14aa5d7d1a7ef888298b3942afc15927c43a113bb1b38c
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Filesize
106KB
MD512110f2d3f10f992b8c74ac3dd9a3f5b
SHA1f61a4c37a7835e5838a693c6ccf25d8ba4c9a8cc
SHA256f47f36063a896ea4f8598fc0803827f2cb26344eb42b945e22fa09df43d21838
SHA51225a1e3bc05c4315d2d72ca2544853f60208fffac4e3ddfed418bb4fc496e7f56f61c7232eb95c58a5f14aa5d7d1a7ef888298b3942afc15927c43a113bb1b38c
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Filesize
106KB
MD512110f2d3f10f992b8c74ac3dd9a3f5b
SHA1f61a4c37a7835e5838a693c6ccf25d8ba4c9a8cc
SHA256f47f36063a896ea4f8598fc0803827f2cb26344eb42b945e22fa09df43d21838
SHA51225a1e3bc05c4315d2d72ca2544853f60208fffac4e3ddfed418bb4fc496e7f56f61c7232eb95c58a5f14aa5d7d1a7ef888298b3942afc15927c43a113bb1b38c
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Filesize
106KB
MD512110f2d3f10f992b8c74ac3dd9a3f5b
SHA1f61a4c37a7835e5838a693c6ccf25d8ba4c9a8cc
SHA256f47f36063a896ea4f8598fc0803827f2cb26344eb42b945e22fa09df43d21838
SHA51225a1e3bc05c4315d2d72ca2544853f60208fffac4e3ddfed418bb4fc496e7f56f61c7232eb95c58a5f14aa5d7d1a7ef888298b3942afc15927c43a113bb1b38c
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Filesize
241KB
MD57a6213e8ab10eaf5f2c405fe22d17323
SHA156367a09efa9b37fef786381eef516f7cd5ef873
SHA25600d052ba1a29eab0035423f8739d53d9c0be70f2755cea960904364d3eee6993
SHA512c5c26a8a12240a644ba2c4179c91fa9b7dd9b7cf2595f2df2862e23966a3cbf1e8444a52e61ba8497c048b63646b925b1e892a13f0d44aaec025139446cea64f
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Filesize
241KB
MD57a6213e8ab10eaf5f2c405fe22d17323
SHA156367a09efa9b37fef786381eef516f7cd5ef873
SHA25600d052ba1a29eab0035423f8739d53d9c0be70f2755cea960904364d3eee6993
SHA512c5c26a8a12240a644ba2c4179c91fa9b7dd9b7cf2595f2df2862e23966a3cbf1e8444a52e61ba8497c048b63646b925b1e892a13f0d44aaec025139446cea64f
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Filesize
241KB
MD57a6213e8ab10eaf5f2c405fe22d17323
SHA156367a09efa9b37fef786381eef516f7cd5ef873
SHA25600d052ba1a29eab0035423f8739d53d9c0be70f2755cea960904364d3eee6993
SHA512c5c26a8a12240a644ba2c4179c91fa9b7dd9b7cf2595f2df2862e23966a3cbf1e8444a52e61ba8497c048b63646b925b1e892a13f0d44aaec025139446cea64f
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Filesize
108KB
MD58a2fbd568ba9c9ad5a71d8aeea7783c4
SHA17bad7765504217e73005dd9cbd97017a572aca13
SHA2562a0939feaad1d2bcd68383c4b8684d4733e73d34102f5db80fa4266ae66b43f4
SHA5120a1d5b5d7e6167f56d43cdfb0cf62282f04284102e378d511ac0a41452d13bfdf05357d026869e2b21282e639bbaf1f5ce745caf294f7ad01668b4bed0ac245e
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Filesize
108KB
MD58a2fbd568ba9c9ad5a71d8aeea7783c4
SHA17bad7765504217e73005dd9cbd97017a572aca13
SHA2562a0939feaad1d2bcd68383c4b8684d4733e73d34102f5db80fa4266ae66b43f4
SHA5120a1d5b5d7e6167f56d43cdfb0cf62282f04284102e378d511ac0a41452d13bfdf05357d026869e2b21282e639bbaf1f5ce745caf294f7ad01668b4bed0ac245e
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Filesize
176KB
MD5f5169847e810b92b8082161316eee033
SHA178e86ec36c6515d144f7c5523c13d5366e9bea06
SHA2568eb4412f65669fdb7344509d077f8dcf34d8a3ea15faca319c320dd9cb2b5574
SHA512b78d39c789e7f6f1186e02c20fae4b146652ac008940d31905d0695331a26f3b92e838ee4d0ab6185c99311cd21169b40668977f462dd2d4dbbde0ce357b46bd
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Filesize
176KB
MD5f5169847e810b92b8082161316eee033
SHA178e86ec36c6515d144f7c5523c13d5366e9bea06
SHA2568eb4412f65669fdb7344509d077f8dcf34d8a3ea15faca319c320dd9cb2b5574
SHA512b78d39c789e7f6f1186e02c20fae4b146652ac008940d31905d0695331a26f3b92e838ee4d0ab6185c99311cd21169b40668977f462dd2d4dbbde0ce357b46bd
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Filesize
176KB
MD5f5169847e810b92b8082161316eee033
SHA178e86ec36c6515d144f7c5523c13d5366e9bea06
SHA2568eb4412f65669fdb7344509d077f8dcf34d8a3ea15faca319c320dd9cb2b5574
SHA512b78d39c789e7f6f1186e02c20fae4b146652ac008940d31905d0695331a26f3b92e838ee4d0ab6185c99311cd21169b40668977f462dd2d4dbbde0ce357b46bd
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Filesize
158KB
MD5c484d3c5fd45d1d30e2ea087f92427d9
SHA174fa7ec21cb40d92a1951212c8beb461e06cad4a
SHA256101689b07542f711353c5091f3d1843286247b6367325461ee3116f7772dd65a
SHA512ab18ab6ccc5c53881f40337c78652c09ab37c1abd1fe0d89e322b10d7128c545d0b137cc4333d8a2dae1ff305f4bf5b471a918fb4c8e26a7e69baf2bab54e841
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Filesize
158KB
MD5c484d3c5fd45d1d30e2ea087f92427d9
SHA174fa7ec21cb40d92a1951212c8beb461e06cad4a
SHA256101689b07542f711353c5091f3d1843286247b6367325461ee3116f7772dd65a
SHA512ab18ab6ccc5c53881f40337c78652c09ab37c1abd1fe0d89e322b10d7128c545d0b137cc4333d8a2dae1ff305f4bf5b471a918fb4c8e26a7e69baf2bab54e841
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Filesize
158KB
MD5c484d3c5fd45d1d30e2ea087f92427d9
SHA174fa7ec21cb40d92a1951212c8beb461e06cad4a
SHA256101689b07542f711353c5091f3d1843286247b6367325461ee3116f7772dd65a
SHA512ab18ab6ccc5c53881f40337c78652c09ab37c1abd1fe0d89e322b10d7128c545d0b137cc4333d8a2dae1ff305f4bf5b471a918fb4c8e26a7e69baf2bab54e841