Analysis
-
max time kernel
179s -
max time network
204s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
23-11-2022 10:14
Static task
static1
Behavioral task
behavioral1
Sample
b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe
Resource
win10v2004-20221111-en
General
-
Target
b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe
-
Size
602KB
-
MD5
8951725b739361457154224c754e3e69
-
SHA1
254eec30d65a544ea0687370230ec1a02aedb925
-
SHA256
b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864
-
SHA512
0eed0546d500ab0700ef9d4c801a40463f3079512d74cc4bf8ddeb7b9e7fef43b74f0bce1d484b5538dcba15f2a4dc6e637a0c38bdb53e70587d83a88d18a6f6
-
SSDEEP
12288:DIny5DYTj9qz6vjMoV8LdsAst1tS8e/R:LUTjZvIoVcOh6
Malware Config
Signatures
-
Drops file in Drivers directory 1 IoCs
Processes:
b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exedescription ioc process File created C:\Windows\system32\drivers\nethfdrv.sys b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe -
Executes dropped EXE 5 IoCs
Processes:
installd.exenethtsrv.exenetupdsrv.exenethtsrv.exenetupdsrv.exepid process 544 installd.exe 1008 nethtsrv.exe 4616 netupdsrv.exe 456 nethtsrv.exe 2940 netupdsrv.exe -
Loads dropped DLL 14 IoCs
Processes:
b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exeinstalld.exenethtsrv.exenethtsrv.exepid process 3660 b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe 3660 b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe 3660 b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe 3660 b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe 3660 b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe 544 installd.exe 1008 nethtsrv.exe 1008 nethtsrv.exe 3660 b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe 3660 b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe 456 nethtsrv.exe 456 nethtsrv.exe 3660 b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe 3660 b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.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:
b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exedescription ioc process File created C:\Windows\SysWOW64\hfnapi.dll b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe File created C:\Windows\SysWOW64\hfpapi.dll b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe File created C:\Windows\SysWOW64\installd.exe b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe File created C:\Windows\SysWOW64\nethtsrv.exe b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe File created C:\Windows\SysWOW64\netupdsrv.exe b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe -
Drops file in Program Files directory 3 IoCs
Processes:
b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exedescription ioc process File created C:\Program Files (x86)\Common Files\config\uninstinethnfd.exe b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe File created C:\Program Files (x86)\Common Files\Config\data.xml b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe File created C:\Program Files (x86)\Common Files\Config\ver.xml b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.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 456 nethtsrv.exe -
Suspicious use of WriteProcessMemory 33 IoCs
Processes:
b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exenet.exenet.exenet.exenet.exedescription pid process target process PID 3660 wrote to memory of 224 3660 b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe net.exe PID 3660 wrote to memory of 224 3660 b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe net.exe PID 3660 wrote to memory of 224 3660 b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe net.exe PID 224 wrote to memory of 5100 224 net.exe net1.exe PID 224 wrote to memory of 5100 224 net.exe net1.exe PID 224 wrote to memory of 5100 224 net.exe net1.exe PID 3660 wrote to memory of 4436 3660 b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe net.exe PID 3660 wrote to memory of 4436 3660 b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe net.exe PID 3660 wrote to memory of 4436 3660 b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe net.exe PID 4436 wrote to memory of 444 4436 net.exe net1.exe PID 4436 wrote to memory of 444 4436 net.exe net1.exe PID 4436 wrote to memory of 444 4436 net.exe net1.exe PID 3660 wrote to memory of 544 3660 b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe installd.exe PID 3660 wrote to memory of 544 3660 b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe installd.exe PID 3660 wrote to memory of 544 3660 b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe installd.exe PID 3660 wrote to memory of 1008 3660 b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe nethtsrv.exe PID 3660 wrote to memory of 1008 3660 b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe nethtsrv.exe PID 3660 wrote to memory of 1008 3660 b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe nethtsrv.exe PID 3660 wrote to memory of 4616 3660 b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe netupdsrv.exe PID 3660 wrote to memory of 4616 3660 b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe netupdsrv.exe PID 3660 wrote to memory of 4616 3660 b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe netupdsrv.exe PID 3660 wrote to memory of 4764 3660 b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe net.exe PID 3660 wrote to memory of 4764 3660 b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe net.exe PID 3660 wrote to memory of 4764 3660 b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe net.exe PID 4764 wrote to memory of 4716 4764 net.exe net1.exe PID 4764 wrote to memory of 4716 4764 net.exe net1.exe PID 4764 wrote to memory of 4716 4764 net.exe net1.exe PID 3660 wrote to memory of 4480 3660 b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe net.exe PID 3660 wrote to memory of 4480 3660 b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe net.exe PID 3660 wrote to memory of 4480 3660 b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe net.exe PID 4480 wrote to memory of 540 4480 net.exe net1.exe PID 4480 wrote to memory of 540 4480 net.exe net1.exe PID 4480 wrote to memory of 540 4480 net.exe net1.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.exe"C:\Users\Admin\AppData\Local\Temp\b52a805ab8e84de913f003ac954786960792097b5f106e195b7d3446426ec864.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:3660 -
C:\Windows\SysWOW64\net.exenet stop nethttpservice2⤵
- Suspicious use of WriteProcessMemory
PID:224 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 stop nethttpservice3⤵PID:5100
-
C:\Windows\SysWOW64\net.exenet stop serviceupdater2⤵
- Suspicious use of WriteProcessMemory
PID:4436 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 stop serviceupdater3⤵PID:444
-
C:\Windows\SysWOW64\installd.exe"C:\Windows\system32\installd.exe" nethfdrv2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:544 -
C:\Windows\SysWOW64\nethtsrv.exe"C:\Windows\system32\nethtsrv.exe" -nfdi2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:1008 -
C:\Windows\SysWOW64\netupdsrv.exe"C:\Windows\system32\netupdsrv.exe" -nfdi2⤵
- Executes dropped EXE
PID:4616 -
C:\Windows\SysWOW64\net.exenet start nethttpservice2⤵
- Suspicious use of WriteProcessMemory
PID:4764 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 start nethttpservice3⤵PID:4716
-
C:\Windows\SysWOW64\net.exenet start serviceupdater2⤵
- Suspicious use of WriteProcessMemory
PID:4480 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 start serviceupdater3⤵PID:540
-
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:456
-
C:\Windows\SysWOW64\netupdsrv.exeC:\Windows\SysWOW64\netupdsrv.exe1⤵
- Executes dropped EXE
PID:2940
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
MD5af6f8598f0a8801675a22af9058488a1
SHA175c2530bc77ab1f4d595b3840c598ad48d783aa4
SHA256760fbd9017ed3ea43ab807aa88afde45ed437c2e8bb80b78641889982bcf37cb
SHA512c0102c1141c9b657ab5c9b59708b38989b9b1c5daa9fd1255fd3e89a3c54bcc3bc477dd580d8cec5dfa00828dcfb8c3a85c9912df7742fccda2e513591510b56
-
Filesize
106KB
MD5af6f8598f0a8801675a22af9058488a1
SHA175c2530bc77ab1f4d595b3840c598ad48d783aa4
SHA256760fbd9017ed3ea43ab807aa88afde45ed437c2e8bb80b78641889982bcf37cb
SHA512c0102c1141c9b657ab5c9b59708b38989b9b1c5daa9fd1255fd3e89a3c54bcc3bc477dd580d8cec5dfa00828dcfb8c3a85c9912df7742fccda2e513591510b56
-
Filesize
106KB
MD5af6f8598f0a8801675a22af9058488a1
SHA175c2530bc77ab1f4d595b3840c598ad48d783aa4
SHA256760fbd9017ed3ea43ab807aa88afde45ed437c2e8bb80b78641889982bcf37cb
SHA512c0102c1141c9b657ab5c9b59708b38989b9b1c5daa9fd1255fd3e89a3c54bcc3bc477dd580d8cec5dfa00828dcfb8c3a85c9912df7742fccda2e513591510b56
-
Filesize
106KB
MD5af6f8598f0a8801675a22af9058488a1
SHA175c2530bc77ab1f4d595b3840c598ad48d783aa4
SHA256760fbd9017ed3ea43ab807aa88afde45ed437c2e8bb80b78641889982bcf37cb
SHA512c0102c1141c9b657ab5c9b59708b38989b9b1c5daa9fd1255fd3e89a3c54bcc3bc477dd580d8cec5dfa00828dcfb8c3a85c9912df7742fccda2e513591510b56
-
Filesize
241KB
MD55d59277ec805f839354765a0c6bcdf0c
SHA1ea6a296bf8897c1a6d0701511520374d182a7cd6
SHA2565117c1b3993c8dc8878a14a9fb35fd86a1d8a07737333667123c1e58210997f7
SHA512039aab15a3f6a0a293622153a3d32d5ead8f78e0015243d2553956ce5e0e12453cb96d83e5be8ca8885c569727a627529207c66ef88b64797357c04409a1084b
-
Filesize
241KB
MD55d59277ec805f839354765a0c6bcdf0c
SHA1ea6a296bf8897c1a6d0701511520374d182a7cd6
SHA2565117c1b3993c8dc8878a14a9fb35fd86a1d8a07737333667123c1e58210997f7
SHA512039aab15a3f6a0a293622153a3d32d5ead8f78e0015243d2553956ce5e0e12453cb96d83e5be8ca8885c569727a627529207c66ef88b64797357c04409a1084b
-
Filesize
241KB
MD55d59277ec805f839354765a0c6bcdf0c
SHA1ea6a296bf8897c1a6d0701511520374d182a7cd6
SHA2565117c1b3993c8dc8878a14a9fb35fd86a1d8a07737333667123c1e58210997f7
SHA512039aab15a3f6a0a293622153a3d32d5ead8f78e0015243d2553956ce5e0e12453cb96d83e5be8ca8885c569727a627529207c66ef88b64797357c04409a1084b
-
Filesize
108KB
MD5fd5e90fb7bf929eab76bfe5139fb1dca
SHA1e830b2951bccb99f29b66d5f3fa7a16240d7965e
SHA2561c8d1fc2cbc8f9a000d6144ae49a5ac548568cdca6e64b9d616ebe93de03086b
SHA51245cde56de66f3cb9b76ae1009b2da7d2fb0e4cfc088540157deeee3e2197c222637647b83666a4aa3cb0f3b4235dbd92183ba66038507c1f91bf76b0ba253359
-
Filesize
108KB
MD5fd5e90fb7bf929eab76bfe5139fb1dca
SHA1e830b2951bccb99f29b66d5f3fa7a16240d7965e
SHA2561c8d1fc2cbc8f9a000d6144ae49a5ac548568cdca6e64b9d616ebe93de03086b
SHA51245cde56de66f3cb9b76ae1009b2da7d2fb0e4cfc088540157deeee3e2197c222637647b83666a4aa3cb0f3b4235dbd92183ba66038507c1f91bf76b0ba253359
-
Filesize
176KB
MD5cadf9c3487a7139daa5d8d8306bac2c5
SHA14024273f6952f8e87fdf6460657d48f9c726d580
SHA25605ef576d846b4d35672ff1459e0e951a71d72bba9d1a083f8a0a6f5e1063acea
SHA5126df2804761b0288ddd6b088734d2cd4061b877b3ca1fec7d480c509026a07f13f764fa795e3aa0d118ed8955931d3df91da2a5e28731ca1a260ba54e9eda483b
-
Filesize
176KB
MD5cadf9c3487a7139daa5d8d8306bac2c5
SHA14024273f6952f8e87fdf6460657d48f9c726d580
SHA25605ef576d846b4d35672ff1459e0e951a71d72bba9d1a083f8a0a6f5e1063acea
SHA5126df2804761b0288ddd6b088734d2cd4061b877b3ca1fec7d480c509026a07f13f764fa795e3aa0d118ed8955931d3df91da2a5e28731ca1a260ba54e9eda483b
-
Filesize
176KB
MD5cadf9c3487a7139daa5d8d8306bac2c5
SHA14024273f6952f8e87fdf6460657d48f9c726d580
SHA25605ef576d846b4d35672ff1459e0e951a71d72bba9d1a083f8a0a6f5e1063acea
SHA5126df2804761b0288ddd6b088734d2cd4061b877b3ca1fec7d480c509026a07f13f764fa795e3aa0d118ed8955931d3df91da2a5e28731ca1a260ba54e9eda483b
-
Filesize
158KB
MD528c7433a9eb7aeb24131329baf00c476
SHA1762ad22d07374fca97f2f84df84d5ea51768c7f8
SHA25691bd185b432e3a8cf007bcf8d10f5a2bf191a0c0d830ad3a3fef661c659ad92e
SHA512d2ab39b4f43544c1523afda9c5a1e5c08f3f37c4353577196b489dea6482f5c834f0a410f7b5710ca01ef2f958a06fa8304f2ccff45cc0234cd0dc245a6aafb8
-
Filesize
158KB
MD528c7433a9eb7aeb24131329baf00c476
SHA1762ad22d07374fca97f2f84df84d5ea51768c7f8
SHA25691bd185b432e3a8cf007bcf8d10f5a2bf191a0c0d830ad3a3fef661c659ad92e
SHA512d2ab39b4f43544c1523afda9c5a1e5c08f3f37c4353577196b489dea6482f5c834f0a410f7b5710ca01ef2f958a06fa8304f2ccff45cc0234cd0dc245a6aafb8
-
Filesize
158KB
MD528c7433a9eb7aeb24131329baf00c476
SHA1762ad22d07374fca97f2f84df84d5ea51768c7f8
SHA25691bd185b432e3a8cf007bcf8d10f5a2bf191a0c0d830ad3a3fef661c659ad92e
SHA512d2ab39b4f43544c1523afda9c5a1e5c08f3f37c4353577196b489dea6482f5c834f0a410f7b5710ca01ef2f958a06fa8304f2ccff45cc0234cd0dc245a6aafb8