d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b

Analysis

max time kernel
168s
max time network
31s
platform
windows7_x64
resource
win7-20221111-en
resource tags

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

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General

Target

d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe
Size

604KB
MD5

3c372c66caaae3939974040bf463a755
SHA1

1f97c0e4e08e1448a637bb948b637a17dca2ea02
SHA256

d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b
SHA512

73fc299e3be2878d003efd38c84be72ed3ed4865ec034ccd3d56d680118906967971ff2270748116d541d5615bdadc05bbc80b5eee92f25d7f8f804e0a4250ac
SSDEEP

12288:BIny5DYTL7IjyiF4eUnpY3+FxYrHKJ6TklZY7LivSymIpl9:9UTL7Ijyd5YkWrqJo8+vEgAl9

Score

8^/10

discovery

Malware Config

Signatures

Drops file in Drivers directory 1 IoCs

Processes:

d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe

description ioc process

File created C:\Windows\system32\drivers\nethfdrv.sys d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe
Executes dropped EXE 2 IoCs

Processes:

installd.exenethtsrv.exe

pid process

1668 installd.exe
1528 nethtsrv.exe

description	ioc	process
File created	C:\Windows\system32\drivers\nethfdrv.sys	d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe

pid	process
1668	installd.exe
1528	nethtsrv.exe

Loads dropped DLL 8 IoCs

Processes:

d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exeinstalld.exenethtsrv.exe

pid	process
1820	d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe
1820	d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe
1820	d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe
1820	d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe
1668	installd.exe
1820	d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe
1528	nethtsrv.exe
1528	nethtsrv.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:

d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe

description	ioc	process
File created	C:\Windows\SysWOW64\hfnapi.dll	d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe
File created	C:\Windows\SysWOW64\hfpapi.dll	d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe
File created	C:\Windows\SysWOW64\installd.exe	d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe
File created	C:\Windows\SysWOW64\nethtsrv.exe	d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe
File created	C:\Windows\SysWOW64\netupdsrv.exe	d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe

Drops file in Program Files directory 3 IoCs

Processes:

d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe

description	ioc	process
File created	C:\Program Files (x86)\Common Files\Config\data.xml	d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe
File created	C:\Program Files (x86)\Common Files\Config\ver.xml	d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe
File created	C:\Program Files (x86)\Common Files\config\uninstinethnfd.exe	d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.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

464

pid	process
464

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exenet.exenet.exe

description	pid	process	target process
PID 1820 wrote to memory of 1696	1820	d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe	net.exe
PID 1820 wrote to memory of 1696	1820	d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe	net.exe
PID 1820 wrote to memory of 1696	1820	d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe	net.exe
PID 1820 wrote to memory of 1696	1820	d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe	net.exe
PID 1696 wrote to memory of 1104	1696	net.exe	net1.exe
PID 1696 wrote to memory of 1104	1696	net.exe	net1.exe
PID 1696 wrote to memory of 1104	1696	net.exe	net1.exe
PID 1696 wrote to memory of 1104	1696	net.exe	net1.exe
PID 1820 wrote to memory of 1632	1820	d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe	net.exe
PID 1820 wrote to memory of 1632	1820	d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe	net.exe
PID 1820 wrote to memory of 1632	1820	d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe	net.exe
PID 1820 wrote to memory of 1632	1820	d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe	net.exe
PID 1632 wrote to memory of 536	1632	net.exe	net1.exe
PID 1632 wrote to memory of 536	1632	net.exe	net1.exe
PID 1632 wrote to memory of 536	1632	net.exe	net1.exe
PID 1632 wrote to memory of 536	1632	net.exe	net1.exe
PID 1820 wrote to memory of 1668	1820	d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe	installd.exe
PID 1820 wrote to memory of 1668	1820	d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe	installd.exe
PID 1820 wrote to memory of 1668	1820	d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe	installd.exe
PID 1820 wrote to memory of 1668	1820	d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe	installd.exe
PID 1820 wrote to memory of 1668	1820	d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe	installd.exe
PID 1820 wrote to memory of 1668	1820	d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe	installd.exe
PID 1820 wrote to memory of 1668	1820	d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe	installd.exe
PID 1820 wrote to memory of 1528	1820	d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe	nethtsrv.exe
PID 1820 wrote to memory of 1528	1820	d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe	nethtsrv.exe
PID 1820 wrote to memory of 1528	1820	d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe	nethtsrv.exe
PID 1820 wrote to memory of 1528	1820	d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe	nethtsrv.exe

C:\Users\Admin\AppData\Local\Temp\d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.exe
"C:\Users\Admin\AppData\Local\Temp\d269cc6d4a9b14d4cd891dba43e556d0b325234d8d67473ca6937d49fa692b7b.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:1820

C:\Windows\SysWOW64\net.exe
net stop nethttpservice
2⤵
- Suspicious use of WriteProcessMemory
PID:1696

C:\Windows\SysWOW64\net1.exe
C:\Windows\system32\net1 stop nethttpservice
3⤵
PID:1104

C:\Windows\SysWOW64\net.exe
net stop serviceupdater
2⤵
- Suspicious use of WriteProcessMemory
PID:1632

C:\Windows\SysWOW64\net1.exe
C:\Windows\system32\net1 stop serviceupdater
3⤵
PID:536

C:\Windows\SysWOW64\installd.exe
"C:\Windows\system32\installd.exe" nethfdrv
2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:1668

C:\Windows\SysWOW64\nethtsrv.exe
"C:\Windows\system32\nethtsrv.exe" -nfdi
2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:1528

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

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Downloads

C:\Windows\SysWOW64\hfnapi.dll

Filesize
106KB

MD5
d6dac97a925d27c3eaebb67d8ca27144

SHA1
8eec9434fd103f364c3bdeaf6f630d75ea7e472d

SHA256
6db6b4c5c95ed0783c19adafffb27bec4031d8a6b533ab61c0944bc487ef1b88

SHA512
a37f896d1289df950735cabdf7e79e06d67cc78cc5c6f1e0f6d50b0aaaec79a4d85204dac54a91e791d20188e95b4a0d30671a3a422f57ca6a024ad1bc8868b5

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

Filesize
244KB

MD5
992d99f60d841ed7b9abac341f861886

SHA1
39abaa3750d8edcac38da0b894d5e7630d72ec5e

SHA256
7c3d1c99bc59fb3e85034951d6d40ce11ac8fde750fcb82102f6a8ba718da60b

SHA512
9acbd05b56cf27b3f69ddcc74e9865451a66dc3abed97223979ba732d52be24996215d00d4594f9abe34f65c29f55fafef19091c17a68f7b6ae706f7f9269ab2

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

Filesize
108KB

MD5
7c5ef99a34348226d9004875df91b995

SHA1
8eecd530cbc023ac974b13b833893b14659eb245

SHA256
cce7e1bcac081789bfa29add005c81421448a2cbb287620bd2c735cc73a6d3d5

SHA512
a713ed4630787858f8ffa3cf3c01f9135849f788cc85c06824b4d66162765e1d5ad3ab0f70540739a095c61c45c33e5b19a357675ffb8e173de4779bc1b1caf3

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

Filesize
176KB

MD5
caa3a3b41fbb21178fabe232f629d07a

SHA1
9545bdf3b2370896c800dcba6a2d6cba8dd8ecc3

SHA256
3dabddb2667b9f534e01d7e1af703157e2370b63300cf77f274a1f18275cae25

SHA512
e55e00781956e8188bf1602ca8472d98307e5e3d8961cd85672de2bf3eeb405a70b778d099afc905a2ff10e53e3d0d3e995b7de4fc82ec0649f7306f660e5516

Download Submit
\Users\Admin\AppData\Local\Temp\nskAB9E.tmp\System.dll

Filesize
11KB

MD5
c17103ae9072a06da581dec998343fc1

SHA1
b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

SHA256
dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

SHA512
d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

Download Submit
\Users\Admin\AppData\Local\Temp\nskAB9E.tmp\nsExec.dll

Filesize
6KB

MD5
acc2b699edfea5bf5aae45aba3a41e96

SHA1
d2accf4d494e43ceb2cff69abe4dd17147d29cc2

SHA256
168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

SHA512
e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

Download Submit
\Users\Admin\AppData\Local\Temp\nskAB9E.tmp\nsExec.dll

Filesize
6KB

MD5
acc2b699edfea5bf5aae45aba3a41e96

SHA1
d2accf4d494e43ceb2cff69abe4dd17147d29cc2

SHA256
168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

SHA512
e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

Download Submit
\Windows\SysWOW64\hfnapi.dll

Filesize
106KB

MD5
d6dac97a925d27c3eaebb67d8ca27144

SHA1
8eec9434fd103f364c3bdeaf6f630d75ea7e472d

SHA256
6db6b4c5c95ed0783c19adafffb27bec4031d8a6b533ab61c0944bc487ef1b88

SHA512
a37f896d1289df950735cabdf7e79e06d67cc78cc5c6f1e0f6d50b0aaaec79a4d85204dac54a91e791d20188e95b4a0d30671a3a422f57ca6a024ad1bc8868b5

Download Submit
\Windows\SysWOW64\hfnapi.dll

Filesize
106KB

MD5
d6dac97a925d27c3eaebb67d8ca27144

SHA1
8eec9434fd103f364c3bdeaf6f630d75ea7e472d

SHA256
6db6b4c5c95ed0783c19adafffb27bec4031d8a6b533ab61c0944bc487ef1b88

SHA512
a37f896d1289df950735cabdf7e79e06d67cc78cc5c6f1e0f6d50b0aaaec79a4d85204dac54a91e791d20188e95b4a0d30671a3a422f57ca6a024ad1bc8868b5

Download Submit
\Windows\SysWOW64\hfpapi.dll

Filesize
244KB

MD5
992d99f60d841ed7b9abac341f861886

SHA1
39abaa3750d8edcac38da0b894d5e7630d72ec5e

SHA256
7c3d1c99bc59fb3e85034951d6d40ce11ac8fde750fcb82102f6a8ba718da60b

SHA512
9acbd05b56cf27b3f69ddcc74e9865451a66dc3abed97223979ba732d52be24996215d00d4594f9abe34f65c29f55fafef19091c17a68f7b6ae706f7f9269ab2

Download Submit
\Windows\SysWOW64\installd.exe

Filesize
108KB

MD5
7c5ef99a34348226d9004875df91b995

SHA1
8eecd530cbc023ac974b13b833893b14659eb245

SHA256
cce7e1bcac081789bfa29add005c81421448a2cbb287620bd2c735cc73a6d3d5

SHA512
a713ed4630787858f8ffa3cf3c01f9135849f788cc85c06824b4d66162765e1d5ad3ab0f70540739a095c61c45c33e5b19a357675ffb8e173de4779bc1b1caf3

Download Submit
\Windows\SysWOW64\nethtsrv.exe

Filesize
176KB

MD5
caa3a3b41fbb21178fabe232f629d07a

SHA1
9545bdf3b2370896c800dcba6a2d6cba8dd8ecc3

SHA256
3dabddb2667b9f534e01d7e1af703157e2370b63300cf77f274a1f18275cae25

SHA512
e55e00781956e8188bf1602ca8472d98307e5e3d8961cd85672de2bf3eeb405a70b778d099afc905a2ff10e53e3d0d3e995b7de4fc82ec0649f7306f660e5516

Download Submit
memory/536-63-0x0000000000000000-mapping.dmp

Download
memory/1104-59-0x0000000000000000-mapping.dmp

Download
memory/1528-71-0x0000000000000000-mapping.dmp

Download
memory/1632-62-0x0000000000000000-mapping.dmp

Download
memory/1668-65-0x0000000000000000-mapping.dmp

Download
memory/1696-58-0x0000000000000000-mapping.dmp

Download
memory/1820-54-0x00000000757E1000-0x00000000757E3000-memory.dmp

Filesize
8KB

Download
memory/1820-60-0x0000000000360000-0x00000000007BE000-memory.dmp

Filesize
4.4MB

Download
memory/1820-55-0x0000000000360000-0x00000000007BE000-memory.dmp

Filesize
4.4MB

Download