Malware Analysis Report

2024-10-23 16:16

Sample ID 240202-n3fjnafcgl
Target 897278b44d8712024391903867a5ef44
SHA256 1104e75f6b1835efc9dd8454058d43b89fca854fb649fbb2716af104a00311b9
Tags
netsupport rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

1104e75f6b1835efc9dd8454058d43b89fca854fb649fbb2716af104a00311b9

Threat Level: Known bad

The file 897278b44d8712024391903867a5ef44 was found to be: Known bad.

Malicious Activity Summary

netsupport rat

NetSupport

Checks computer location settings

Loads dropped DLL

Drops startup file

Executes dropped EXE

Unsigned PE

Enumerates physical storage devices

Suspicious use of FindShellTrayWindow

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-02-02 11:55

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-02 11:55

Reported

2024-02-02 11:57

Platform

win10v2004-20231215-en

Max time kernel

147s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\897278b44d8712024391903867a5ef44.exe"

Signatures

NetSupport

rat netsupport

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\897278b44d8712024391903867a5ef44.exe N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\autoruning.ini.lnk C:\Users\Admin\AppData\Local\Temp\897278b44d8712024391903867a5ef44.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\WinSupport\client32.exe N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeSecurityPrivilege N/A C:\Users\Admin\AppData\Roaming\WinSupport\client32.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\WinSupport\client32.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\897278b44d8712024391903867a5ef44.exe

"C:\Users\Admin\AppData\Local\Temp\897278b44d8712024391903867a5ef44.exe"

C:\Users\Admin\AppData\Roaming\WinSupport\client32.exe

"C:\Users\Admin\AppData\Roaming\WinSupport\client32.exe"

Network

Country Destination Domain Proto
US 20.231.121.79:80 tcp
US 8.8.8.8:53 202.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 bursaebre1.com udp
US 8.8.8.8:53 bursaebre2.com udp
US 8.8.8.8:53 geo.netsupportsoftware.com udp
IL 77.91.74.133:3021 bursaebre2.com tcp
US 104.26.1.231:80 geo.netsupportsoftware.com tcp
US 8.8.8.8:53 231.1.26.104.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 178.223.142.52.in-addr.arpa udp
US 8.8.8.8:53 205.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 bursaebre1.com udp
US 8.8.8.8:53 bursaebre2.com udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 175.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 26.73.42.20.in-addr.arpa udp
US 8.8.8.8:53 bursaebre1.com udp
US 8.8.8.8:53 bursaebre2.com udp
IL 77.91.74.133:3021 bursaebre2.com tcp

Files

C:\Users\Admin\AppData\Roaming\WinSupport\client32.exe

MD5 f76954b68cc390f8009f1a052283a740
SHA1 3112a39aad950045d6422fb2abe98bed05931e6c
SHA256 63315df7981130853d75dc753e5776bdf371811bcfce351557c1e45afdd1ebfb
SHA512 d3aea0867b488161f62e43e7c250ad3917713b8b183139fb6e06c71594fb0cec769e1494b7cc257117992ae4aa891e056f99c25431ae19f032b1ba779051a880

C:\Users\Admin\AppData\Roaming\WinSupport\PCICL32.dll

MD5 00587238d16012152c2e951a087f2cc9
SHA1 c4e27a43075ce993ff6bb033360af386b2fc58ff
SHA256 63aa18c32af7144156e7ee2d5ba0fa4f5872a7deb56894f6f96505cbc9afe6f8
SHA512 637950a1f78d3f3d02c30a49a16e91cf3dfccc59104041876789bd7fdf9224d187209547766b91404c67319e13d1606da7cec397315495962cbf3e2ccd5f1226

C:\Users\Admin\AppData\Roaming\WinSupport\pcichek.dll

MD5 a0b9388c5f18e27266a31f8c5765b263
SHA1 906f7e94f841d464d4da144f7c858fa2160e36db
SHA256 313117e723dda6ea3911faacd23f4405003fb651c73de8deff10b9eb5b4a058a
SHA512 6051a0b22af135b4433474dc7c6f53fb1c06844d0a30ed596a3c6c80644df511b023e140c4878867fa2578c79695fac2eb303aea87c0ecfc15a4ad264bd0b3cd

C:\Users\Admin\AppData\Roaming\WinSupport\pcicapi.dll

MD5 dcde2248d19c778a41aa165866dd52d0
SHA1 7ec84be84fe23f0b0093b647538737e1f19ebb03
SHA256 9074fd40ea6a0caa892e6361a6a4e834c2e51e6e98d1ffcda7a9a537594a6917
SHA512 c5d170d420f1aeb9bcd606a282af6e8da04ae45c83d07faaacb73ff2e27f4188b09446ce508620124f6d9b447a40a23620cfb39b79f02b04bb9e513866352166

C:\Users\Admin\AppData\Roaming\WinSupport\msvcr100.dll

MD5 0e37fbfa79d349d672456923ec5fbbe3
SHA1 4e880fc7625ccf8d9ca799d5b94ce2b1e7597335
SHA256 8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18
SHA512 2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

C:\Users\Admin\AppData\Roaming\WinSupport\NSM.LIC

MD5 8614c2008044a081e9d26d8db1571f4a
SHA1 1b007f05c289d0b71d542520b25fe65c6b6fcbe3
SHA256 df622fc8bc605023730d3ad952d69fcbd8383ce5440d63da0df20fb139355ec9
SHA512 449244a508daaacde53078b826f7b482650acc3f61e8235fa892a737bebbecb178061d0aa1e99cd74da7885c86cebb2727d6e85384ecd68187d7e6e94f018ae9

C:\Users\Admin\AppData\Roaming\WinSupport\client32.ini

MD5 3e1091fb68b2eaab01c9f9eda3ade904
SHA1 538b61edb240fccec0916660b2c799b3f446f1f3
SHA256 148b6762e0599abf5413f10a4acea4e5d15125614420da73f4853f8882eaefee
SHA512 880cf5212cc44444ea3796384d9636bec0dae4af4257eb6678119fbaf90f115ef8b772bb46d6a9ee934756dc47af11aba9b2d23a8a28a723cad14929e3c981be

C:\Users\Admin\AppData\Roaming\WinSupport\TCCTL32.DLL

MD5 eab603d12705752e3d268d86dff74ed4
SHA1 01873977c871d3346d795cf7e3888685de9f0b16
SHA256 6795d760ce7a955df6c2f5a062e296128efdb8c908908eda4d666926980447ea
SHA512 77de0d9c93ccba967db70b280a85a770b3d8bea3b707b1abb037b2826b48898fec87924e1a6cce218c43478e5209e9eb9781051b4c3b450bea3cd27dbd32c7f3

C:\Users\Admin\AppData\Roaming\WinSupport\HTCTL32.DLL

MD5 2d3b207c8a48148296156e5725426c7f
SHA1 ad464eb7cf5c19c8a443ab5b590440b32dbc618f
SHA256 edfe2b923bfb5d1088de1611401f5c35ece91581e71503a5631647ac51f7d796
SHA512 55c791705993b83c9b26a8dbd545d7e149c42ee358ecece638128ee271e85b4fdbfd6fbae61d13533bf39ae752144e2cc2c5edcda955f18c37a785084db0860c

Analysis: behavioral1

Detonation Overview

Submitted

2024-02-02 11:55

Reported

2024-02-02 11:57

Platform

win7-20231215-en

Max time kernel

119s

Max time network

140s

Command Line

"C:\Users\Admin\AppData\Local\Temp\897278b44d8712024391903867a5ef44.exe"

Signatures

NetSupport

rat netsupport

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\autoruning.ini.lnk C:\Users\Admin\AppData\Local\Temp\897278b44d8712024391903867a5ef44.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\WinSupport\client32.exe N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeSecurityPrivilege N/A C:\Users\Admin\AppData\Roaming\WinSupport\client32.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\WinSupport\client32.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\897278b44d8712024391903867a5ef44.exe

"C:\Users\Admin\AppData\Local\Temp\897278b44d8712024391903867a5ef44.exe"

C:\Users\Admin\AppData\Roaming\WinSupport\client32.exe

"C:\Users\Admin\AppData\Roaming\WinSupport\client32.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 bursaebre1.com udp
US 8.8.8.8:53 geo.netsupportsoftware.com udp
US 172.67.68.212:80 geo.netsupportsoftware.com tcp
US 8.8.8.8:53 bursaebre2.com udp
US 8.8.8.8:53 bursaebre2.com udp
IL 77.91.74.133:3021 bursaebre2.com tcp

Files

\Users\Admin\AppData\Roaming\WinSupport\client32.exe

MD5 f76954b68cc390f8009f1a052283a740
SHA1 3112a39aad950045d6422fb2abe98bed05931e6c
SHA256 63315df7981130853d75dc753e5776bdf371811bcfce351557c1e45afdd1ebfb
SHA512 d3aea0867b488161f62e43e7c250ad3917713b8b183139fb6e06c71594fb0cec769e1494b7cc257117992ae4aa891e056f99c25431ae19f032b1ba779051a880

C:\Users\Admin\AppData\Roaming\WinSupport\PCICL32.dll

MD5 00587238d16012152c2e951a087f2cc9
SHA1 c4e27a43075ce993ff6bb033360af386b2fc58ff
SHA256 63aa18c32af7144156e7ee2d5ba0fa4f5872a7deb56894f6f96505cbc9afe6f8
SHA512 637950a1f78d3f3d02c30a49a16e91cf3dfccc59104041876789bd7fdf9224d187209547766b91404c67319e13d1606da7cec397315495962cbf3e2ccd5f1226

C:\Users\Admin\AppData\Roaming\WinSupport\pcichek.dll

MD5 a0b9388c5f18e27266a31f8c5765b263
SHA1 906f7e94f841d464d4da144f7c858fa2160e36db
SHA256 313117e723dda6ea3911faacd23f4405003fb651c73de8deff10b9eb5b4a058a
SHA512 6051a0b22af135b4433474dc7c6f53fb1c06844d0a30ed596a3c6c80644df511b023e140c4878867fa2578c79695fac2eb303aea87c0ecfc15a4ad264bd0b3cd

C:\Users\Admin\AppData\Roaming\WinSupport\MSVCR100.dll

MD5 0e37fbfa79d349d672456923ec5fbbe3
SHA1 4e880fc7625ccf8d9ca799d5b94ce2b1e7597335
SHA256 8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18
SHA512 2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

C:\Users\Admin\AppData\Roaming\WinSupport\pcicapi.dll

MD5 dcde2248d19c778a41aa165866dd52d0
SHA1 7ec84be84fe23f0b0093b647538737e1f19ebb03
SHA256 9074fd40ea6a0caa892e6361a6a4e834c2e51e6e98d1ffcda7a9a537594a6917
SHA512 c5d170d420f1aeb9bcd606a282af6e8da04ae45c83d07faaacb73ff2e27f4188b09446ce508620124f6d9b447a40a23620cfb39b79f02b04bb9e513866352166

C:\Users\Admin\AppData\Roaming\WinSupport\NSM.LIC

MD5 8614c2008044a081e9d26d8db1571f4a
SHA1 1b007f05c289d0b71d542520b25fe65c6b6fcbe3
SHA256 df622fc8bc605023730d3ad952d69fcbd8383ce5440d63da0df20fb139355ec9
SHA512 449244a508daaacde53078b826f7b482650acc3f61e8235fa892a737bebbecb178061d0aa1e99cd74da7885c86cebb2727d6e85384ecd68187d7e6e94f018ae9

C:\Users\Admin\AppData\Roaming\WinSupport\client32.ini

MD5 3e1091fb68b2eaab01c9f9eda3ade904
SHA1 538b61edb240fccec0916660b2c799b3f446f1f3
SHA256 148b6762e0599abf5413f10a4acea4e5d15125614420da73f4853f8882eaefee
SHA512 880cf5212cc44444ea3796384d9636bec0dae4af4257eb6678119fbaf90f115ef8b772bb46d6a9ee934756dc47af11aba9b2d23a8a28a723cad14929e3c981be

C:\Users\Admin\AppData\Roaming\WinSupport\TCCTL32.DLL

MD5 eab603d12705752e3d268d86dff74ed4
SHA1 01873977c871d3346d795cf7e3888685de9f0b16
SHA256 6795d760ce7a955df6c2f5a062e296128efdb8c908908eda4d666926980447ea
SHA512 77de0d9c93ccba967db70b280a85a770b3d8bea3b707b1abb037b2826b48898fec87924e1a6cce218c43478e5209e9eb9781051b4c3b450bea3cd27dbd32c7f3

C:\Users\Admin\AppData\Roaming\WinSupport\HTCTL32.DLL

MD5 2d3b207c8a48148296156e5725426c7f
SHA1 ad464eb7cf5c19c8a443ab5b590440b32dbc618f
SHA256 edfe2b923bfb5d1088de1611401f5c35ece91581e71503a5631647ac51f7d796
SHA512 55c791705993b83c9b26a8dbd545d7e149c42ee358ecece638128ee271e85b4fdbfd6fbae61d13533bf39ae752144e2cc2c5edcda955f18c37a785084db0860c