Analysis
-
max time kernel
161s -
max time network
170s -
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 10:19
Static task
static1
Behavioral task
behavioral1
Sample
8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe
Resource
win10v2004-20220812-en
General
-
Target
8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe
-
Size
602KB
-
MD5
91ab9503734f5b4779d2379cdc5434fe
-
SHA1
0af2f870c035f3b568472c32f6b1cd867905b72f
-
SHA256
8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d
-
SHA512
562202191c6d39286f6ff9b06903aa9f2bd0fa04919bd7d07743a6a12172dad39cf33e0a0bcede96552391fc11a10f2a05616c5c9c00c7168751887a3b22ac8c
-
SSDEEP
12288:YIny5DYTj7WVdU2WAG+aOspAQEK8tsKZOSzvOQMW4+F:2UTj7GpWAG+PspAQnRKZOSz2TW4+F
Malware Config
Signatures
-
Drops file in Drivers directory 1 IoCs
Processes:
8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exedescription ioc process File created C:\Windows\system32\drivers\nethfdrv.sys 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe -
Executes dropped EXE 5 IoCs
Processes:
installd.exenethtsrv.exenetupdsrv.exenethtsrv.exenetupdsrv.exepid process 4528 installd.exe 32 nethtsrv.exe 3112 netupdsrv.exe 4148 nethtsrv.exe 2824 netupdsrv.exe -
Loads dropped DLL 14 IoCs
Processes:
8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exeinstalld.exenethtsrv.exenethtsrv.exepid process 448 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe 448 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe 448 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe 448 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe 448 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe 4528 installd.exe 32 nethtsrv.exe 32 nethtsrv.exe 448 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe 448 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe 4148 nethtsrv.exe 4148 nethtsrv.exe 448 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe 448 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.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:
8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exedescription ioc process File created C:\Windows\SysWOW64\nethtsrv.exe 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe File created C:\Windows\SysWOW64\netupdsrv.exe 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe File created C:\Windows\SysWOW64\hfnapi.dll 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe File created C:\Windows\SysWOW64\hfpapi.dll 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe File created C:\Windows\SysWOW64\installd.exe 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe -
Drops file in Program Files directory 3 IoCs
Processes:
8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exedescription ioc process File created C:\Program Files (x86)\Common Files\Config\data.xml 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe File created C:\Program Files (x86)\Common Files\Config\ver.xml 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe File created C:\Program Files (x86)\Common Files\config\uninstinethnfd.exe 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.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 648 -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
nethtsrv.exedescription pid process Token: SeDebugPrivilege 4148 nethtsrv.exe -
Suspicious use of WriteProcessMemory 33 IoCs
Processes:
8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exenet.exenet.exenet.exenet.exedescription pid process target process PID 448 wrote to memory of 1584 448 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe net.exe PID 448 wrote to memory of 1584 448 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe net.exe PID 448 wrote to memory of 1584 448 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe net.exe PID 1584 wrote to memory of 1108 1584 net.exe net1.exe PID 1584 wrote to memory of 1108 1584 net.exe net1.exe PID 1584 wrote to memory of 1108 1584 net.exe net1.exe PID 448 wrote to memory of 4752 448 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe net.exe PID 448 wrote to memory of 4752 448 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe net.exe PID 448 wrote to memory of 4752 448 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe net.exe PID 4752 wrote to memory of 8 4752 net.exe net1.exe PID 4752 wrote to memory of 8 4752 net.exe net1.exe PID 4752 wrote to memory of 8 4752 net.exe net1.exe PID 448 wrote to memory of 4528 448 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe installd.exe PID 448 wrote to memory of 4528 448 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe installd.exe PID 448 wrote to memory of 4528 448 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe installd.exe PID 448 wrote to memory of 32 448 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe nethtsrv.exe PID 448 wrote to memory of 32 448 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe nethtsrv.exe PID 448 wrote to memory of 32 448 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe nethtsrv.exe PID 448 wrote to memory of 3112 448 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe netupdsrv.exe PID 448 wrote to memory of 3112 448 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe netupdsrv.exe PID 448 wrote to memory of 3112 448 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe netupdsrv.exe PID 448 wrote to memory of 1828 448 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe net.exe PID 448 wrote to memory of 1828 448 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe net.exe PID 448 wrote to memory of 1828 448 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe net.exe PID 1828 wrote to memory of 4280 1828 net.exe net1.exe PID 1828 wrote to memory of 4280 1828 net.exe net1.exe PID 1828 wrote to memory of 4280 1828 net.exe net1.exe PID 448 wrote to memory of 4052 448 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe net.exe PID 448 wrote to memory of 4052 448 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe net.exe PID 448 wrote to memory of 4052 448 8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe net.exe PID 4052 wrote to memory of 3824 4052 net.exe net1.exe PID 4052 wrote to memory of 3824 4052 net.exe net1.exe PID 4052 wrote to memory of 3824 4052 net.exe net1.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.exe"C:\Users\Admin\AppData\Local\Temp\8eff2b0395a14860312142408b764433943c1c8a468bf4655f0e913cb65da10d.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:448 -
C:\Windows\SysWOW64\net.exenet stop nethttpservice2⤵
- Suspicious use of WriteProcessMemory
PID:1584 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 stop nethttpservice3⤵PID:1108
-
C:\Windows\SysWOW64\net.exenet stop serviceupdater2⤵
- Suspicious use of WriteProcessMemory
PID:4752 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 stop serviceupdater3⤵PID:8
-
C:\Windows\SysWOW64\installd.exe"C:\Windows\system32\installd.exe" nethfdrv2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:4528 -
C:\Windows\SysWOW64\nethtsrv.exe"C:\Windows\system32\nethtsrv.exe" -nfdi2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:32 -
C:\Windows\SysWOW64\netupdsrv.exe"C:\Windows\system32\netupdsrv.exe" -nfdi2⤵
- Executes dropped EXE
PID:3112 -
C:\Windows\SysWOW64\net.exenet start nethttpservice2⤵
- Suspicious use of WriteProcessMemory
PID:1828 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 start nethttpservice3⤵PID:4280
-
C:\Windows\SysWOW64\net.exenet start serviceupdater2⤵
- Suspicious use of WriteProcessMemory
PID:4052 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 start serviceupdater3⤵PID:3824
-
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:4148
-
C:\Windows\SysWOW64\netupdsrv.exeC:\Windows\SysWOW64\netupdsrv.exe1⤵
- Executes dropped EXE
PID:2824
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
-
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
MD59521375251e98a694b4fc14d7e97a0c8
SHA1a96a36191e372a3e21e9aae89f6f8c4886309725
SHA256bfe6678d3f79f19afaa9eaf7bda327f11a53b10efdc188e50adbcd238ebfe5d7
SHA512ac1e5474bb7e7be7217fb81873905e74ef5dcd6b5dd1d1a828ef33e70d40bcb84563df2dc57b157dd8de2ba21c2c504976615b29fb070385569fa3e0ccc00687
-
Filesize
106KB
MD59521375251e98a694b4fc14d7e97a0c8
SHA1a96a36191e372a3e21e9aae89f6f8c4886309725
SHA256bfe6678d3f79f19afaa9eaf7bda327f11a53b10efdc188e50adbcd238ebfe5d7
SHA512ac1e5474bb7e7be7217fb81873905e74ef5dcd6b5dd1d1a828ef33e70d40bcb84563df2dc57b157dd8de2ba21c2c504976615b29fb070385569fa3e0ccc00687
-
Filesize
106KB
MD59521375251e98a694b4fc14d7e97a0c8
SHA1a96a36191e372a3e21e9aae89f6f8c4886309725
SHA256bfe6678d3f79f19afaa9eaf7bda327f11a53b10efdc188e50adbcd238ebfe5d7
SHA512ac1e5474bb7e7be7217fb81873905e74ef5dcd6b5dd1d1a828ef33e70d40bcb84563df2dc57b157dd8de2ba21c2c504976615b29fb070385569fa3e0ccc00687
-
Filesize
106KB
MD59521375251e98a694b4fc14d7e97a0c8
SHA1a96a36191e372a3e21e9aae89f6f8c4886309725
SHA256bfe6678d3f79f19afaa9eaf7bda327f11a53b10efdc188e50adbcd238ebfe5d7
SHA512ac1e5474bb7e7be7217fb81873905e74ef5dcd6b5dd1d1a828ef33e70d40bcb84563df2dc57b157dd8de2ba21c2c504976615b29fb070385569fa3e0ccc00687
-
Filesize
241KB
MD56db0c3a6381d1c742384d5812eefb970
SHA13d979ef2611014d12e3268342b151b1f487702e9
SHA256a3e429c32c0fcaecc1287c522b5ee1ef243bf1fa70a1971c713a0442a46c1e3c
SHA51286158c198bb54e6c7713551366a7503c1df7102337bb6aa67909a1988e3175a509bceab1e75e467c200641026a4fcdb1b3b350bec9d9f9eb4058b6068e32e2f1
-
Filesize
241KB
MD56db0c3a6381d1c742384d5812eefb970
SHA13d979ef2611014d12e3268342b151b1f487702e9
SHA256a3e429c32c0fcaecc1287c522b5ee1ef243bf1fa70a1971c713a0442a46c1e3c
SHA51286158c198bb54e6c7713551366a7503c1df7102337bb6aa67909a1988e3175a509bceab1e75e467c200641026a4fcdb1b3b350bec9d9f9eb4058b6068e32e2f1
-
Filesize
241KB
MD56db0c3a6381d1c742384d5812eefb970
SHA13d979ef2611014d12e3268342b151b1f487702e9
SHA256a3e429c32c0fcaecc1287c522b5ee1ef243bf1fa70a1971c713a0442a46c1e3c
SHA51286158c198bb54e6c7713551366a7503c1df7102337bb6aa67909a1988e3175a509bceab1e75e467c200641026a4fcdb1b3b350bec9d9f9eb4058b6068e32e2f1
-
Filesize
108KB
MD5ad0ffeadd743ea1c78c02238ace9635f
SHA1fd03e7283adfa58d8372148afd66b610eac8589d
SHA2567e1b822884b9ebe71a19d15b1af530698e56cabe7674298a844e3c587b48f3f2
SHA512ade20dc00dbbb0bcbb1e65d7fd95109a4c131b854c4c20122a97f7cfd37200ddb0112941d1e990fc036d486070ef75a0d1eb588718577d192aafccd795360feb
-
Filesize
108KB
MD5ad0ffeadd743ea1c78c02238ace9635f
SHA1fd03e7283adfa58d8372148afd66b610eac8589d
SHA2567e1b822884b9ebe71a19d15b1af530698e56cabe7674298a844e3c587b48f3f2
SHA512ade20dc00dbbb0bcbb1e65d7fd95109a4c131b854c4c20122a97f7cfd37200ddb0112941d1e990fc036d486070ef75a0d1eb588718577d192aafccd795360feb
-
Filesize
176KB
MD52b4da54325c2129e722efc4b5f06143e
SHA17054cf89e2f428e0bc415637d455245f74b0255b
SHA256c4cbf8e9df47ab013d0a8a6d27bca7b0b18f19a7653c921b748adfd254faba64
SHA5127ae6bb4f1dc597fa45ef1082e16e66089e6c4cd9c24e229455ca6429c34205a5e165bf962a1386863ac0381437beef6cca08036cd19941a5c57202512d4d7242
-
Filesize
176KB
MD52b4da54325c2129e722efc4b5f06143e
SHA17054cf89e2f428e0bc415637d455245f74b0255b
SHA256c4cbf8e9df47ab013d0a8a6d27bca7b0b18f19a7653c921b748adfd254faba64
SHA5127ae6bb4f1dc597fa45ef1082e16e66089e6c4cd9c24e229455ca6429c34205a5e165bf962a1386863ac0381437beef6cca08036cd19941a5c57202512d4d7242
-
Filesize
176KB
MD52b4da54325c2129e722efc4b5f06143e
SHA17054cf89e2f428e0bc415637d455245f74b0255b
SHA256c4cbf8e9df47ab013d0a8a6d27bca7b0b18f19a7653c921b748adfd254faba64
SHA5127ae6bb4f1dc597fa45ef1082e16e66089e6c4cd9c24e229455ca6429c34205a5e165bf962a1386863ac0381437beef6cca08036cd19941a5c57202512d4d7242
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Filesize
158KB
MD5b40cb83d98b55d9a20c0015923cc639e
SHA1e2be0ca1e3c4cdff4aaf92d7d57c0ae72dec3cba
SHA256762a1115a18174f87dd532e321ec7756092d45f550c8d15ac42186580acfc3ff
SHA51254b0e777e89206c5fa5b5c7c0fcb3930836c7edaf6fae61db79b47a6b87dfdb356a97743801faea8262e787b838e0d5d96f469849d6e882517bfb6ef14851640
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Filesize
158KB
MD5b40cb83d98b55d9a20c0015923cc639e
SHA1e2be0ca1e3c4cdff4aaf92d7d57c0ae72dec3cba
SHA256762a1115a18174f87dd532e321ec7756092d45f550c8d15ac42186580acfc3ff
SHA51254b0e777e89206c5fa5b5c7c0fcb3930836c7edaf6fae61db79b47a6b87dfdb356a97743801faea8262e787b838e0d5d96f469849d6e882517bfb6ef14851640
-
Filesize
158KB
MD5b40cb83d98b55d9a20c0015923cc639e
SHA1e2be0ca1e3c4cdff4aaf92d7d57c0ae72dec3cba
SHA256762a1115a18174f87dd532e321ec7756092d45f550c8d15ac42186580acfc3ff
SHA51254b0e777e89206c5fa5b5c7c0fcb3930836c7edaf6fae61db79b47a6b87dfdb356a97743801faea8262e787b838e0d5d96f469849d6e882517bfb6ef14851640