Analysis
-
max time kernel
48s -
max time network
53s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
23-11-2022 10:13
Static task
static1
Behavioral task
behavioral1
Sample
bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe
Resource
win10v2004-20221111-en
General
-
Target
bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe
-
Size
602KB
-
MD5
e99707d19eebc66231247a759c07036f
-
SHA1
c51875bbd964547286350be12a3613d923f99005
-
SHA256
bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924
-
SHA512
8da6a7a9cede2f8ee2a6b3234bdbe6a90ad43ebe12f82c25284a08ab6145f32054cd5fac808facf5197280097b43ce3555f2b01c75bcabb9f5e54b68e3c65668
-
SSDEEP
12288:1Iny5DYTuUBxnuIlYrHs1g8/1QvKnuMXEVhX7:BUTuiqH58XGr
Malware Config
Signatures
-
Drops file in Drivers directory 1 IoCs
Processes:
bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exedescription ioc process File created C:\Windows\system32\drivers\nethfdrv.sys bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe -
Executes dropped EXE 5 IoCs
Processes:
installd.exenethtsrv.exenetupdsrv.exenethtsrv.exenetupdsrv.exepid process 1220 installd.exe 1652 nethtsrv.exe 1604 netupdsrv.exe 2008 nethtsrv.exe 1300 netupdsrv.exe -
Loads dropped DLL 13 IoCs
Processes:
bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exeinstalld.exenethtsrv.exenethtsrv.exepid process 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe 1220 installd.exe 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe 1652 nethtsrv.exe 1652 nethtsrv.exe 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe 2008 nethtsrv.exe 2008 nethtsrv.exe 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.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:
bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exedescription ioc process File created C:\Windows\SysWOW64\hfnapi.dll bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe File created C:\Windows\SysWOW64\hfpapi.dll bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe File created C:\Windows\SysWOW64\installd.exe bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe File created C:\Windows\SysWOW64\nethtsrv.exe bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe File created C:\Windows\SysWOW64\netupdsrv.exe bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe -
Drops file in Program Files directory 3 IoCs
Processes:
bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exedescription ioc process File created C:\Program Files (x86)\Common Files\Config\ver.xml bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe File created C:\Program Files (x86)\Common Files\config\uninstinethnfd.exe bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe File created C:\Program Files (x86)\Common Files\Config\data.xml bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe -
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
Processes:
pid process 464 -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
nethtsrv.exedescription pid process Token: SeDebugPrivilege 2008 nethtsrv.exe -
Suspicious use of WriteProcessMemory 50 IoCs
Processes:
bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exenet.exenet.exenet.exenet.exedescription pid process target process PID 1364 wrote to memory of 1932 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe net.exe PID 1364 wrote to memory of 1932 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe net.exe PID 1364 wrote to memory of 1932 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe net.exe PID 1364 wrote to memory of 1932 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe net.exe PID 1932 wrote to memory of 988 1932 net.exe net1.exe PID 1932 wrote to memory of 988 1932 net.exe net1.exe PID 1932 wrote to memory of 988 1932 net.exe net1.exe PID 1932 wrote to memory of 988 1932 net.exe net1.exe PID 1364 wrote to memory of 1248 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe net.exe PID 1364 wrote to memory of 1248 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe net.exe PID 1364 wrote to memory of 1248 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe net.exe PID 1364 wrote to memory of 1248 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe net.exe PID 1248 wrote to memory of 472 1248 net.exe net1.exe PID 1248 wrote to memory of 472 1248 net.exe net1.exe PID 1248 wrote to memory of 472 1248 net.exe net1.exe PID 1248 wrote to memory of 472 1248 net.exe net1.exe PID 1364 wrote to memory of 1220 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe installd.exe PID 1364 wrote to memory of 1220 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe installd.exe PID 1364 wrote to memory of 1220 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe installd.exe PID 1364 wrote to memory of 1220 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe installd.exe PID 1364 wrote to memory of 1220 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe installd.exe PID 1364 wrote to memory of 1220 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe installd.exe PID 1364 wrote to memory of 1220 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe installd.exe PID 1364 wrote to memory of 1652 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe nethtsrv.exe PID 1364 wrote to memory of 1652 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe nethtsrv.exe PID 1364 wrote to memory of 1652 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe nethtsrv.exe PID 1364 wrote to memory of 1652 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe nethtsrv.exe PID 1364 wrote to memory of 1604 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe netupdsrv.exe PID 1364 wrote to memory of 1604 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe netupdsrv.exe PID 1364 wrote to memory of 1604 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe netupdsrv.exe PID 1364 wrote to memory of 1604 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe netupdsrv.exe PID 1364 wrote to memory of 1604 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe netupdsrv.exe PID 1364 wrote to memory of 1604 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe netupdsrv.exe PID 1364 wrote to memory of 1604 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe netupdsrv.exe PID 1364 wrote to memory of 1640 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe net.exe PID 1364 wrote to memory of 1640 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe net.exe PID 1364 wrote to memory of 1640 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe net.exe PID 1364 wrote to memory of 1640 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe net.exe PID 1640 wrote to memory of 2028 1640 net.exe net1.exe PID 1640 wrote to memory of 2028 1640 net.exe net1.exe PID 1640 wrote to memory of 2028 1640 net.exe net1.exe PID 1640 wrote to memory of 2028 1640 net.exe net1.exe PID 1364 wrote to memory of 1688 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe net.exe PID 1364 wrote to memory of 1688 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe net.exe PID 1364 wrote to memory of 1688 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe net.exe PID 1364 wrote to memory of 1688 1364 bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe net.exe PID 1688 wrote to memory of 1908 1688 net.exe net1.exe PID 1688 wrote to memory of 1908 1688 net.exe net1.exe PID 1688 wrote to memory of 1908 1688 net.exe net1.exe PID 1688 wrote to memory of 1908 1688 net.exe net1.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.exe"C:\Users\Admin\AppData\Local\Temp\bf11f43611f8219a2b3d5b4528818a12b023652812bb2e25d194945be5151924.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:1364 -
C:\Windows\SysWOW64\net.exenet stop nethttpservice2⤵
- Suspicious use of WriteProcessMemory
PID:1932 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 stop nethttpservice3⤵PID:988
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C:\Windows\SysWOW64\net.exenet stop serviceupdater2⤵
- Suspicious use of WriteProcessMemory
PID:1248 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 stop serviceupdater3⤵PID:472
-
C:\Windows\SysWOW64\installd.exe"C:\Windows\system32\installd.exe" nethfdrv2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:1220 -
C:\Windows\SysWOW64\nethtsrv.exe"C:\Windows\system32\nethtsrv.exe" -nfdi2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:1652 -
C:\Windows\SysWOW64\netupdsrv.exe"C:\Windows\system32\netupdsrv.exe" -nfdi2⤵
- Executes dropped EXE
PID:1604 -
C:\Windows\SysWOW64\net.exenet start nethttpservice2⤵
- Suspicious use of WriteProcessMemory
PID:1640 -
C:\Windows\SysWOW64\net.exenet start serviceupdater2⤵
- Suspicious use of WriteProcessMemory
PID:1688 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 start serviceupdater3⤵PID:1908
-
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 start nethttpservice1⤵PID:2028
-
C:\Windows\SysWOW64\nethtsrv.exeC:\Windows\SysWOW64\nethtsrv.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
PID:2008
-
C:\Windows\SysWOW64\netupdsrv.exeC:\Windows\SysWOW64\netupdsrv.exe1⤵
- Executes dropped EXE
PID:1300
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
106KB
MD55eef2796c4385152ef0de4093a139b9f
SHA1fa903b4405aad1cf94a057b728139c9fc8ffe27d
SHA256fb325c84cc7d0d04a5723afd417560fa549c445b92bec34ba39051147efb276b
SHA51299b136d94d15ae2f1d3a5261b720bce17e2e7bc600af9a94cc29d9d7db2d806bf59c3e767a893e3404d3a52de67570995c714f76975eac2c3199d7b780cb9aeb
-
Filesize
241KB
MD55b3078350e1590e84989cd447d36946d
SHA18d8e1d3668d84ee28d0eaadfca11276a67ee67a3
SHA2563dec47ca6ed1a9a0e78f16d904a96fc3962b46e4ade1e850d1bfa0b5adde24b7
SHA512513a29cdea826e2fa50df3e076d0f306c84e58b91052dca37a80f764bac090db63aa0978ed9bf12df560399e4585cbb6986a95099f1d65cb52e4e0621fbdedce
-
Filesize
108KB
MD533417f4420c43c61f216e79942f4c72a
SHA12c4690f2df97db04e2c255ba0d12cc03ec3e287e
SHA256820fbc285a20eeb39d891707920061a0cb20dc7b04336668d6e7179df0b3feff
SHA51295c206ad5a490b95d2b576d42b6a6a4d9aaa6b0bcd5c52686939a06ff13ff331e108031f7b6ae926f0734390c5e90e1793c8d217a5b02d2091e4f34bf1459587
-
Filesize
176KB
MD596c73bbcf81a1054b42a56aed10592de
SHA1d7998003ef34986a9f4899a2e6858e5fefe95bf1
SHA25611544ec3d093cc8b7eabe644a7aae2f18255b6b3460428e391f10b6bd0b4b639
SHA5124a1aa0f1240c82558141cbf62cf1cbd1593855546a286da9586120cd8e25201e0a64fdfd027c44b7cd52fe543c7ca122d885a8af5b9ca97bc188b9e2d7d48137
-
Filesize
176KB
MD596c73bbcf81a1054b42a56aed10592de
SHA1d7998003ef34986a9f4899a2e6858e5fefe95bf1
SHA25611544ec3d093cc8b7eabe644a7aae2f18255b6b3460428e391f10b6bd0b4b639
SHA5124a1aa0f1240c82558141cbf62cf1cbd1593855546a286da9586120cd8e25201e0a64fdfd027c44b7cd52fe543c7ca122d885a8af5b9ca97bc188b9e2d7d48137
-
Filesize
159KB
MD59be52bc963017e8b8fb9c854b1803883
SHA19094ee54afb42a3c1e6fb992c021cb316a6e4b4c
SHA25688631b3294a9751cbd47f5d04602338763e7b526b8c4bb7b1187b62179c00f55
SHA512611d8b3f2d3f5764430b06072e87339d0ef47825b3c6e02523481bfabe0ebc169855560d46549b10c494ce46324347473bce32ebb8554f5f54b85fd612d4f5ee
-
Filesize
159KB
MD59be52bc963017e8b8fb9c854b1803883
SHA19094ee54afb42a3c1e6fb992c021cb316a6e4b4c
SHA25688631b3294a9751cbd47f5d04602338763e7b526b8c4bb7b1187b62179c00f55
SHA512611d8b3f2d3f5764430b06072e87339d0ef47825b3c6e02523481bfabe0ebc169855560d46549b10c494ce46324347473bce32ebb8554f5f54b85fd612d4f5ee
-
Filesize
11KB
MD5c17103ae9072a06da581dec998343fc1
SHA1b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d
SHA256dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f
SHA512d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f
-
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
MD55eef2796c4385152ef0de4093a139b9f
SHA1fa903b4405aad1cf94a057b728139c9fc8ffe27d
SHA256fb325c84cc7d0d04a5723afd417560fa549c445b92bec34ba39051147efb276b
SHA51299b136d94d15ae2f1d3a5261b720bce17e2e7bc600af9a94cc29d9d7db2d806bf59c3e767a893e3404d3a52de67570995c714f76975eac2c3199d7b780cb9aeb
-
Filesize
106KB
MD55eef2796c4385152ef0de4093a139b9f
SHA1fa903b4405aad1cf94a057b728139c9fc8ffe27d
SHA256fb325c84cc7d0d04a5723afd417560fa549c445b92bec34ba39051147efb276b
SHA51299b136d94d15ae2f1d3a5261b720bce17e2e7bc600af9a94cc29d9d7db2d806bf59c3e767a893e3404d3a52de67570995c714f76975eac2c3199d7b780cb9aeb
-
Filesize
106KB
MD55eef2796c4385152ef0de4093a139b9f
SHA1fa903b4405aad1cf94a057b728139c9fc8ffe27d
SHA256fb325c84cc7d0d04a5723afd417560fa549c445b92bec34ba39051147efb276b
SHA51299b136d94d15ae2f1d3a5261b720bce17e2e7bc600af9a94cc29d9d7db2d806bf59c3e767a893e3404d3a52de67570995c714f76975eac2c3199d7b780cb9aeb
-
Filesize
241KB
MD55b3078350e1590e84989cd447d36946d
SHA18d8e1d3668d84ee28d0eaadfca11276a67ee67a3
SHA2563dec47ca6ed1a9a0e78f16d904a96fc3962b46e4ade1e850d1bfa0b5adde24b7
SHA512513a29cdea826e2fa50df3e076d0f306c84e58b91052dca37a80f764bac090db63aa0978ed9bf12df560399e4585cbb6986a95099f1d65cb52e4e0621fbdedce
-
Filesize
241KB
MD55b3078350e1590e84989cd447d36946d
SHA18d8e1d3668d84ee28d0eaadfca11276a67ee67a3
SHA2563dec47ca6ed1a9a0e78f16d904a96fc3962b46e4ade1e850d1bfa0b5adde24b7
SHA512513a29cdea826e2fa50df3e076d0f306c84e58b91052dca37a80f764bac090db63aa0978ed9bf12df560399e4585cbb6986a95099f1d65cb52e4e0621fbdedce
-
Filesize
108KB
MD533417f4420c43c61f216e79942f4c72a
SHA12c4690f2df97db04e2c255ba0d12cc03ec3e287e
SHA256820fbc285a20eeb39d891707920061a0cb20dc7b04336668d6e7179df0b3feff
SHA51295c206ad5a490b95d2b576d42b6a6a4d9aaa6b0bcd5c52686939a06ff13ff331e108031f7b6ae926f0734390c5e90e1793c8d217a5b02d2091e4f34bf1459587
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Filesize
176KB
MD596c73bbcf81a1054b42a56aed10592de
SHA1d7998003ef34986a9f4899a2e6858e5fefe95bf1
SHA25611544ec3d093cc8b7eabe644a7aae2f18255b6b3460428e391f10b6bd0b4b639
SHA5124a1aa0f1240c82558141cbf62cf1cbd1593855546a286da9586120cd8e25201e0a64fdfd027c44b7cd52fe543c7ca122d885a8af5b9ca97bc188b9e2d7d48137
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Filesize
159KB
MD59be52bc963017e8b8fb9c854b1803883
SHA19094ee54afb42a3c1e6fb992c021cb316a6e4b4c
SHA25688631b3294a9751cbd47f5d04602338763e7b526b8c4bb7b1187b62179c00f55
SHA512611d8b3f2d3f5764430b06072e87339d0ef47825b3c6e02523481bfabe0ebc169855560d46549b10c494ce46324347473bce32ebb8554f5f54b85fd612d4f5ee