054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6

Analysis

max time kernel
197s
max time network
34s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
23-11-2022 10:34

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe
Size

602KB
MD5

c7cd2f2e794f8546f0e1ef0f3efc9475
SHA1

0f94356d72b0cd0fbce404718b26c5ee59d74758
SHA256

054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6
SHA512

0811a0cb2364c37d6010e0f514144a4f632fcce08ec4d4d4cc91382d724e1720e7a4a91bc30174906be2623f789d6c5fc5b1831710a92cab0e694a47c1c7f783
SSDEEP

12288:jIny5DYTuJlrm+YciI+ZPyhWtH5rj/QANXt8CG0f1dJlmYnPGxQisQvE:rUTurYTJkM9j/51t7f1XlTe1J

Score

8^/10

discovery

Malware Config

Signatures

Drops file in Drivers directory 1 IoCs

Processes:

054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe

description ioc process

File created C:\Windows\system32\drivers\nethfdrv.sys 054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe
Executes dropped EXE 3 IoCs

Processes:

installd.exenethtsrv.exenetupdsrv.exe

pid process

1152 installd.exe
740 nethtsrv.exe
2000 netupdsrv.exe

description	ioc	process
File created	C:\Windows\system32\drivers\nethfdrv.sys	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe

pid	process
1152	installd.exe
740	nethtsrv.exe
2000	netupdsrv.exe

Loads dropped DLL 9 IoCs

Processes:

054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exeinstalld.exenethtsrv.exe

pid	process
568	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe
568	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe
568	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe
568	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe
1152	installd.exe
568	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe
740	nethtsrv.exe
740	nethtsrv.exe
568	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in System32 directory 5 IoCs

Processes:

054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe

description	ioc	process
File created	C:\Windows\SysWOW64\nethtsrv.exe	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe
File created	C:\Windows\SysWOW64\netupdsrv.exe	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe
File created	C:\Windows\SysWOW64\hfnapi.dll	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe
File created	C:\Windows\SysWOW64\hfpapi.dll	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe
File created	C:\Windows\SysWOW64\installd.exe	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe

Drops file in Program Files directory 3 IoCs

Processes:

054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe

description	ioc	process
File created	C:\Program Files (x86)\Common Files\config\uninstinethnfd.exe	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe
File created	C:\Program Files (x86)\Common Files\Config\data.xml	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe
File created	C:\Program Files (x86)\Common Files\Config\ver.xml	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Runs net.exe
Suspicious behavior: LoadsDriver 1 IoCs

Processes:

pid process

460

pid	process
460

Suspicious use of WriteProcessMemory 34 IoCs

Processes:

054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exenet.exenet.exe

description	pid	process	target process
PID 568 wrote to memory of 668	568	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe	net.exe
PID 568 wrote to memory of 668	568	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe	net.exe
PID 568 wrote to memory of 668	568	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe	net.exe
PID 568 wrote to memory of 668	568	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe	net.exe
PID 668 wrote to memory of 1176	668	net.exe	net1.exe
PID 668 wrote to memory of 1176	668	net.exe	net1.exe
PID 668 wrote to memory of 1176	668	net.exe	net1.exe
PID 668 wrote to memory of 1176	668	net.exe	net1.exe
PID 568 wrote to memory of 1808	568	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe	net.exe
PID 568 wrote to memory of 1808	568	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe	net.exe
PID 568 wrote to memory of 1808	568	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe	net.exe
PID 568 wrote to memory of 1808	568	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe	net.exe
PID 1808 wrote to memory of 752	1808	net.exe	net1.exe
PID 1808 wrote to memory of 752	1808	net.exe	net1.exe
PID 1808 wrote to memory of 752	1808	net.exe	net1.exe
PID 1808 wrote to memory of 752	1808	net.exe	net1.exe
PID 568 wrote to memory of 1152	568	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe	installd.exe
PID 568 wrote to memory of 1152	568	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe	installd.exe
PID 568 wrote to memory of 1152	568	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe	installd.exe
PID 568 wrote to memory of 1152	568	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe	installd.exe
PID 568 wrote to memory of 1152	568	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe	installd.exe
PID 568 wrote to memory of 1152	568	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe	installd.exe
PID 568 wrote to memory of 1152	568	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe	installd.exe
PID 568 wrote to memory of 740	568	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe	nethtsrv.exe
PID 568 wrote to memory of 740	568	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe	nethtsrv.exe
PID 568 wrote to memory of 740	568	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe	nethtsrv.exe
PID 568 wrote to memory of 740	568	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe	nethtsrv.exe
PID 568 wrote to memory of 2000	568	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe	netupdsrv.exe
PID 568 wrote to memory of 2000	568	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe	netupdsrv.exe
PID 568 wrote to memory of 2000	568	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe	netupdsrv.exe
PID 568 wrote to memory of 2000	568	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe	netupdsrv.exe
PID 568 wrote to memory of 2000	568	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe	netupdsrv.exe
PID 568 wrote to memory of 2000	568	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe	netupdsrv.exe
PID 568 wrote to memory of 2000	568	054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe	netupdsrv.exe

C:\Users\Admin\AppData\Local\Temp\054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.exe
"C:\Users\Admin\AppData\Local\Temp\054c17936c0335f9993f5ebbdc3c1b572c6d621b8c4cc959b6884b4d506becd6.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:568

C:\Windows\SysWOW64\net.exe
net stop nethttpservice
2⤵
- Suspicious use of WriteProcessMemory
PID:668

C:\Windows\SysWOW64\net1.exe
C:\Windows\system32\net1 stop nethttpservice
3⤵
PID:1176

C:\Windows\SysWOW64\net.exe
net stop serviceupdater
2⤵
- Suspicious use of WriteProcessMemory
PID:1808

C:\Windows\SysWOW64\net1.exe
C:\Windows\system32\net1 stop serviceupdater
3⤵
PID:752

C:\Windows\SysWOW64\installd.exe
"C:\Windows\system32\installd.exe" nethfdrv
2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:1152

C:\Windows\SysWOW64\nethtsrv.exe
"C:\Windows\system32\nethtsrv.exe" -nfdi
2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:740

C:\Windows\SysWOW64\netupdsrv.exe
"C:\Windows\system32\netupdsrv.exe" -nfdi
2⤵
- Executes dropped EXE
PID:2000

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\hfnapi.dll

Filesize
106KB

MD5
f003aff425bf88cd02f6c971ff65ccbf

SHA1
f150d9942a9bb2d1515b6256fbd9ca5777eb38ed

SHA256
52cefbd08cf8bb690b64af96e34a1dc2e8a4a153ff3be5df7744f05933d84ca6

SHA512
3ea22e39103a62485b014656cc99639dad64daeb67f92087a92dbc50d96e4f20124b22c74c09a22041b20ae18b7f7ef98abffcaea42789a54bbb3b2b45918589

Download Submit
C:\Windows\SysWOW64\hfpapi.dll

Filesize
241KB

MD5
015698f01d5ac87dbaeb51a002f6041e

SHA1
5c9f7691a9a865408a86375b5f0afe4711dbae68

SHA256
2364fa4da672e58dead05753eea578e5a521804c269bb5c1438d176622340e96

SHA512
ddf5f3d7200cfb52732d6ed7768449b8ff96f1cb93e21731065ae8fb622c4adb6f2db4e68dfea6f292d9f662afc25053a3d9266178ddd504a9d3132a413060c5

Download Submit
C:\Windows\SysWOW64\installd.exe

Filesize
108KB

MD5
e57a97adc2aa1c2aeffa69e50ae06646

SHA1
6e8c0e8cae5e5eb9bcd038bd4cb1066e340c0f75

SHA256
be77067e1edb680be22bf4e821c1bc947569e106ede4ffccdb8145a1db8d6316

SHA512
88cef728889f08114a6cb0d5dc19e319dc7387713437c96e6b7a2864bb780fca92e28f7feecc78655ca98d7dfb18bbcba26538803ac75806a4295f45b83ee2c0

Download Submit
C:\Windows\SysWOW64\nethtsrv.exe

Filesize
176KB

MD5
ebf15887f90a5dec412b9fd519bdb3c5

SHA1
d4cc46af614a3ff5a20ad665450f26ca44a3160e

SHA256
b669952765a38ef2fbedae182e9c355b85f8e265568a79838752d87e090e19a1

SHA512
a36d904fb54a813802392576d6ee9bb14910645cbf38789a547e77390079d449f2c03086cc334566ae5faded84031b9062f8c4e704697df69a35f5c7b44d5896

Download Submit
C:\Windows\SysWOW64\netupdsrv.exe

Filesize
159KB

MD5
ad883b59a580b42b888a468301ef43d5

SHA1
dba69330343e1e81ad35810d9f64b6df77e86479

SHA256
463a53f2d44a6fecd5c87b0299f3e2597c6ecf36f38c99488ddc947d1aac3628

SHA512
ad5e1e94bb03111c2a6b37fd13a634b902b8a94731fa6796a2f0c650baec43c85f559e334be81b9a8546cf8d18c31e493b71b96a544163db5628073a182ec3c3

Download Submit
\Users\Admin\AppData\Local\Temp\nsj3787.tmp\System.dll

Filesize
11KB

MD5
c17103ae9072a06da581dec998343fc1

SHA1
b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

SHA256
dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

SHA512
d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

Download Submit
\Users\Admin\AppData\Local\Temp\nsj3787.tmp\nsExec.dll

Filesize
6KB

MD5
acc2b699edfea5bf5aae45aba3a41e96

SHA1
d2accf4d494e43ceb2cff69abe4dd17147d29cc2

SHA256
168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

SHA512
e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

Download Submit
\Users\Admin\AppData\Local\Temp\nsj3787.tmp\nsExec.dll

Filesize
6KB

MD5
acc2b699edfea5bf5aae45aba3a41e96

SHA1
d2accf4d494e43ceb2cff69abe4dd17147d29cc2

SHA256
168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

SHA512
e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

Download Submit
\Windows\SysWOW64\hfnapi.dll

Filesize
106KB

MD5
f003aff425bf88cd02f6c971ff65ccbf

SHA1
f150d9942a9bb2d1515b6256fbd9ca5777eb38ed

SHA256
52cefbd08cf8bb690b64af96e34a1dc2e8a4a153ff3be5df7744f05933d84ca6

SHA512
3ea22e39103a62485b014656cc99639dad64daeb67f92087a92dbc50d96e4f20124b22c74c09a22041b20ae18b7f7ef98abffcaea42789a54bbb3b2b45918589

Download Submit
\Windows\SysWOW64\hfnapi.dll

Filesize
106KB

MD5
f003aff425bf88cd02f6c971ff65ccbf

SHA1
f150d9942a9bb2d1515b6256fbd9ca5777eb38ed

SHA256
52cefbd08cf8bb690b64af96e34a1dc2e8a4a153ff3be5df7744f05933d84ca6

SHA512
3ea22e39103a62485b014656cc99639dad64daeb67f92087a92dbc50d96e4f20124b22c74c09a22041b20ae18b7f7ef98abffcaea42789a54bbb3b2b45918589

Download Submit
\Windows\SysWOW64\hfpapi.dll

Filesize
241KB

MD5
015698f01d5ac87dbaeb51a002f6041e

SHA1
5c9f7691a9a865408a86375b5f0afe4711dbae68

SHA256
2364fa4da672e58dead05753eea578e5a521804c269bb5c1438d176622340e96

SHA512
ddf5f3d7200cfb52732d6ed7768449b8ff96f1cb93e21731065ae8fb622c4adb6f2db4e68dfea6f292d9f662afc25053a3d9266178ddd504a9d3132a413060c5

Download Submit
\Windows\SysWOW64\installd.exe

Filesize
108KB

MD5
e57a97adc2aa1c2aeffa69e50ae06646

SHA1
6e8c0e8cae5e5eb9bcd038bd4cb1066e340c0f75

SHA256
be77067e1edb680be22bf4e821c1bc947569e106ede4ffccdb8145a1db8d6316

SHA512
88cef728889f08114a6cb0d5dc19e319dc7387713437c96e6b7a2864bb780fca92e28f7feecc78655ca98d7dfb18bbcba26538803ac75806a4295f45b83ee2c0

Download Submit
\Windows\SysWOW64\nethtsrv.exe

Filesize
176KB

MD5
ebf15887f90a5dec412b9fd519bdb3c5

SHA1
d4cc46af614a3ff5a20ad665450f26ca44a3160e

SHA256
b669952765a38ef2fbedae182e9c355b85f8e265568a79838752d87e090e19a1

SHA512
a36d904fb54a813802392576d6ee9bb14910645cbf38789a547e77390079d449f2c03086cc334566ae5faded84031b9062f8c4e704697df69a35f5c7b44d5896

Download Submit
\Windows\SysWOW64\netupdsrv.exe

Filesize
159KB

MD5
ad883b59a580b42b888a468301ef43d5

SHA1
dba69330343e1e81ad35810d9f64b6df77e86479

SHA256
463a53f2d44a6fecd5c87b0299f3e2597c6ecf36f38c99488ddc947d1aac3628

SHA512
ad5e1e94bb03111c2a6b37fd13a634b902b8a94731fa6796a2f0c650baec43c85f559e334be81b9a8546cf8d18c31e493b71b96a544163db5628073a182ec3c3

Download Submit
memory/568-54-0x0000000075491000-0x0000000075493000-memory.dmp

Filesize
8KB

Download
memory/568-59-0x0000000000360000-0x00000000007BE000-memory.dmp

Filesize
4.4MB

Download
memory/568-55-0x0000000000360000-0x00000000007BE000-memory.dmp

Filesize
4.4MB

Download
memory/668-58-0x0000000000000000-mapping.dmp

Download
memory/740-71-0x0000000000000000-mapping.dmp

Download
memory/752-63-0x0000000000000000-mapping.dmp

Download
memory/1152-65-0x0000000000000000-mapping.dmp

Download
memory/1176-60-0x0000000000000000-mapping.dmp

Download
memory/1808-62-0x0000000000000000-mapping.dmp

Download
memory/2000-77-0x0000000000000000-mapping.dmp

Download