netsupport | 8ccff473270017f72b0910ea0404d670cc6c0ebee16977accc7cbcf137ba168b

Analysis

max time kernel
61s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
25-02-2023 23:26

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General

Target

54ef9fa70e329cdbe55dfccaef21f9c6.exe
Size

2.6MB
MD5

54ef9fa70e329cdbe55dfccaef21f9c6
SHA1

697da7932e7b7388c9eb838c10c1856b000cdca8
SHA256

8ccff473270017f72b0910ea0404d670cc6c0ebee16977accc7cbcf137ba168b
SHA512

c4e2f1afa4920abeace123c76729f14ab6d078e5625868aaa628a35e1dec501bcf382e280015df1e67558662e929c029aa4116eb616522aff6c0ab051ae737b7
SSDEEP

49152:5VvvvHIr4Ui00kCOEVB1v5iwc6wMdIpFE/pp:5Vngry00K8B5i2IpFwp

Score

10^/10

netsupport rat

Malware Config

Signatures

NetSupport
NetSupport is a remote access tool sold as a legitimate system administration software.
rat netsupport

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

54ef9fa70e329cdbe55dfccaef21f9c6.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation	54ef9fa70e329cdbe55dfccaef21f9c6.exe

Drops startup file 1 IoCs

Processes:

54ef9fa70e329cdbe55dfccaef21f9c6.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\update23.ini.lnk	54ef9fa70e329cdbe55dfccaef21f9c6.exe

Executes dropped EXE 1 IoCs

Processes:

client32.exe

pid process

4748 client32.exe
Loads dropped DLL 5 IoCs

Processes:

client32.exe

pid process

4748 client32.exe
4748 client32.exe
4748 client32.exe
4748 client32.exe
4748 client32.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

client32.exe

description pid process

Token: SeSecurityPrivilege 4748 client32.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

client32.exe

pid process

4748 client32.exe

pid	process
4748	client32.exe

pid	process
4748	client32.exe
4748	client32.exe
4748	client32.exe
4748	client32.exe
4748	client32.exe

description	pid	process
Token: SeSecurityPrivilege	4748	client32.exe

pid	process
4748	client32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

54ef9fa70e329cdbe55dfccaef21f9c6.exe

description	pid	process	target process
PID 3708 wrote to memory of 4748	3708	54ef9fa70e329cdbe55dfccaef21f9c6.exe	client32.exe
PID 3708 wrote to memory of 4748	3708	54ef9fa70e329cdbe55dfccaef21f9c6.exe	client32.exe
PID 3708 wrote to memory of 4748	3708	54ef9fa70e329cdbe55dfccaef21f9c6.exe	client32.exe

C:\Users\Admin\AppData\Local\Temp\54ef9fa70e329cdbe55dfccaef21f9c6.exe
"C:\Users\Admin\AppData\Local\Temp\54ef9fa70e329cdbe55dfccaef21f9c6.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Suspicious use of WriteProcessMemory
PID:3708

C:\Users\Admin\AppData\Roaming\updatewindows23\client32.exe
"C:\Users\Admin\AppData\Roaming\updatewindows23\client32.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:4748

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\updatewindows23\HTCTL32.DLL
Filesize
299KB

MD5
369388ac78ca4ca8a64219cf9aafad4c

SHA1
dfa6c01c55ac799f041c65df9a35aba8cf0d8c2d

SHA256
c76ee648639406c81469772311c39b46042bf1b91e47d9201908f3cf70407f30

SHA512
7d090f033ffc48b870d692877f3804a69dcb1ff61b96936f1ab77bf42b156839bfd787c387bc7d642c732868e3dcd8c0ff3b319f057c0157b5afc6843b302bc5

Download Submit
C:\Users\Admin\AppData\Roaming\updatewindows23\HTCTL32.DLL
Filesize
299KB

MD5
369388ac78ca4ca8a64219cf9aafad4c

SHA1
dfa6c01c55ac799f041c65df9a35aba8cf0d8c2d

SHA256
c76ee648639406c81469772311c39b46042bf1b91e47d9201908f3cf70407f30

SHA512
7d090f033ffc48b870d692877f3804a69dcb1ff61b96936f1ab77bf42b156839bfd787c387bc7d642c732868e3dcd8c0ff3b319f057c0157b5afc6843b302bc5

Download Submit
C:\Users\Admin\AppData\Roaming\updatewindows23\MSVCR100.dll
Filesize
755KB

MD5
0e37fbfa79d349d672456923ec5fbbe3

SHA1
4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

SHA256
8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

SHA512
2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

Download Submit
C:\Users\Admin\AppData\Roaming\updatewindows23\NSM.LIC
Filesize
257B

MD5
9f7d99ff013dd6ff0a47fa22714004d3

SHA1
641dd35a0d42bb418a65825e7de2546b26d08a1d

SHA256
270814d5ba21237006934b7233a3de045c2310660027660b34647d59c7508141

SHA512
b9cd1f929990c77a1cb11d46d29824a85d02b0e5fcc8a14820487af56591e07ac891142c185fcf19b444ba375e88639781244ffe3e150add781045a392d0b503

Download Submit
C:\Users\Admin\AppData\Roaming\updatewindows23\PCICAPI.dll
Filesize
100KB

MD5
f0d7d2a77eee2b3146405d3ad0d56230

SHA1
37c323faf58584606ee5847cb9a25346c588f78f

SHA256
f043653ab1b8fbe5a33922df5b4fb46797e9694e5fcee807b97cc6aaef650131

SHA512
861258b5b97665f649437fd25aadc5dc66e5bc5a87d7482300f9931810f0d89d0ed9c01890cd038daa7c6d2f1850a3208fc20b3c1dc2e588c7688e228a4baade

Download Submit
C:\Users\Admin\AppData\Roaming\updatewindows23\PCICHEK.DLL
Filesize
8KB

MD5
07b474ab5c503f35873b94cd48d01592

SHA1
e6f699d6c021d9d434cc6a4e68516c4c2ac80ddc

SHA256
c8911c298f860de85037f8634e8539627f5a1c13b1fffe5568d63612e29b9cd4

SHA512
a995b0d1fba6e99dd89afbf5161efc18b0268c001c27155876e642abc8639f79c2c320530039cfa5ec9f6ca10e1d716060b0fb86414245f578f920f11c9bbbc8

Download Submit
C:\Users\Admin\AppData\Roaming\updatewindows23\PCICL32.DLL
Filesize
3.3MB

MD5
1274cca13cc5e37ca94d35e5b0673e89

SHA1
a8754c94f88273c304bc45a5afd61a383bb52117

SHA256
cd5510c8bc7ea60be77ad4aab502ee02d871bf4e917aeeb6921c20eebd9693dd

SHA512
52eafa31ee942dc92d0b8f52c12206f6abc1d5fae799b37b371e97c38ce66bd0693263de86b4880748ba1405054701288caf2cd00cd327edc164e1390cf9191c

Download Submit
C:\Users\Admin\AppData\Roaming\updatewindows23\PCICL32.dll
Filesize
3.3MB

MD5
1274cca13cc5e37ca94d35e5b0673e89

SHA1
a8754c94f88273c304bc45a5afd61a383bb52117

SHA256
cd5510c8bc7ea60be77ad4aab502ee02d871bf4e917aeeb6921c20eebd9693dd

SHA512
52eafa31ee942dc92d0b8f52c12206f6abc1d5fae799b37b371e97c38ce66bd0693263de86b4880748ba1405054701288caf2cd00cd327edc164e1390cf9191c

Download Submit
C:\Users\Admin\AppData\Roaming\updatewindows23\client32.exe
Filesize
101KB

MD5
c4f1b50e3111d29774f7525039ff7086

SHA1
57539c95cba0986ec8df0fcdea433e7c71b724c6

SHA256
18df68d1581c11130c139fa52abb74dfd098a9af698a250645d6a4a65efcbf2d

SHA512
005db65cedaaccc85525fb3cdab090054bb0bb9cc8c37f8210ec060f490c64945a682b5dd5d00a68ac2b8c58894b6e7d938acaa1130c1cc5667e206d38b942c5

Download Submit
C:\Users\Admin\AppData\Roaming\updatewindows23\client32.exe
Filesize
101KB

MD5
c4f1b50e3111d29774f7525039ff7086

SHA1
57539c95cba0986ec8df0fcdea433e7c71b724c6

SHA256
18df68d1581c11130c139fa52abb74dfd098a9af698a250645d6a4a65efcbf2d

SHA512
005db65cedaaccc85525fb3cdab090054bb0bb9cc8c37f8210ec060f490c64945a682b5dd5d00a68ac2b8c58894b6e7d938acaa1130c1cc5667e206d38b942c5

Download Submit
C:\Users\Admin\AppData\Roaming\updatewindows23\client32.exe
Filesize
101KB

MD5
c4f1b50e3111d29774f7525039ff7086

SHA1
57539c95cba0986ec8df0fcdea433e7c71b724c6

SHA256
18df68d1581c11130c139fa52abb74dfd098a9af698a250645d6a4a65efcbf2d

SHA512
005db65cedaaccc85525fb3cdab090054bb0bb9cc8c37f8210ec060f490c64945a682b5dd5d00a68ac2b8c58894b6e7d938acaa1130c1cc5667e206d38b942c5

Download Submit
C:\Users\Admin\AppData\Roaming\updatewindows23\client32.ini
Filesize
962B

MD5
279b5834fbd890fb90819b6710e0cc00

SHA1
9fb75dff6476aab7f2aaa15496b79eb9f1a44073

SHA256
08a0519dcc85dd524279c7faab604130e6fd508f504719bb1a29f3f0e4d8b34b

SHA512
ede915541925e2b89aa03612a0ba23db2ba9742f7109228b0929883f6c8a0d0eb3a6af4987268729fa72459b3163e09b466c37668aab748bc5ba1eac38059c19

Download Submit
C:\Users\Admin\AppData\Roaming\updatewindows23\msvcr100.dll
Filesize
755KB

MD5
0e37fbfa79d349d672456923ec5fbbe3

SHA1
4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

SHA256
8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

SHA512
2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

Download Submit
C:\Users\Admin\AppData\Roaming\updatewindows23\pcicapi.dll
Filesize
100KB

MD5
f0d7d2a77eee2b3146405d3ad0d56230

SHA1
37c323faf58584606ee5847cb9a25346c588f78f

SHA256
f043653ab1b8fbe5a33922df5b4fb46797e9694e5fcee807b97cc6aaef650131

SHA512
861258b5b97665f649437fd25aadc5dc66e5bc5a87d7482300f9931810f0d89d0ed9c01890cd038daa7c6d2f1850a3208fc20b3c1dc2e588c7688e228a4baade

Download Submit
C:\Users\Admin\AppData\Roaming\updatewindows23\pcichek.dll
Filesize
8KB

MD5
07b474ab5c503f35873b94cd48d01592

SHA1
e6f699d6c021d9d434cc6a4e68516c4c2ac80ddc

SHA256
c8911c298f860de85037f8634e8539627f5a1c13b1fffe5568d63612e29b9cd4

SHA512
a995b0d1fba6e99dd89afbf5161efc18b0268c001c27155876e642abc8639f79c2c320530039cfa5ec9f6ca10e1d716060b0fb86414245f578f920f11c9bbbc8

Download Submit