netsupport | 8339179040d2458de1077101a6a7932771b127251b4966124d650d4ec3b6b0ca

Analysis

max time kernel
33s
max time network
154s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
21-03-2023 14:40

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General

Target

8ccff473270017f72b0910ea0404d670cc6c0ebee16977accc7cbcf137ba168b.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

Drops startup file 1 IoCs

Processes:

8ccff473270017f72b0910ea0404d670cc6c0ebee16977accc7cbcf137ba168b.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\update23.ini.lnk	8ccff473270017f72b0910ea0404d670cc6c0ebee16977accc7cbcf137ba168b.exe

Executes dropped EXE 1 IoCs

Processes:

client32.exe

pid process

940 client32.exe

pid	process
940	client32.exe

Loads dropped DLL 10 IoCs

Processes:

8ccff473270017f72b0910ea0404d670cc6c0ebee16977accc7cbcf137ba168b.execlient32.exe

pid	process
548	8ccff473270017f72b0910ea0404d670cc6c0ebee16977accc7cbcf137ba168b.exe
548	8ccff473270017f72b0910ea0404d670cc6c0ebee16977accc7cbcf137ba168b.exe
548	8ccff473270017f72b0910ea0404d670cc6c0ebee16977accc7cbcf137ba168b.exe
548	8ccff473270017f72b0910ea0404d670cc6c0ebee16977accc7cbcf137ba168b.exe
548	8ccff473270017f72b0910ea0404d670cc6c0ebee16977accc7cbcf137ba168b.exe
940	client32.exe
940	client32.exe
940	client32.exe
940	client32.exe
940	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 940 client32.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

client32.exe

pid process

940 client32.exe

description	pid	process
Token: SeSecurityPrivilege	940	client32.exe

pid	process
940	client32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

8ccff473270017f72b0910ea0404d670cc6c0ebee16977accc7cbcf137ba168b.exe

description	pid	process	target process
PID 548 wrote to memory of 940	548	8ccff473270017f72b0910ea0404d670cc6c0ebee16977accc7cbcf137ba168b.exe	client32.exe
PID 548 wrote to memory of 940	548	8ccff473270017f72b0910ea0404d670cc6c0ebee16977accc7cbcf137ba168b.exe	client32.exe
PID 548 wrote to memory of 940	548	8ccff473270017f72b0910ea0404d670cc6c0ebee16977accc7cbcf137ba168b.exe	client32.exe
PID 548 wrote to memory of 940	548	8ccff473270017f72b0910ea0404d670cc6c0ebee16977accc7cbcf137ba168b.exe	client32.exe
PID 548 wrote to memory of 940	548	8ccff473270017f72b0910ea0404d670cc6c0ebee16977accc7cbcf137ba168b.exe	client32.exe
PID 548 wrote to memory of 940	548	8ccff473270017f72b0910ea0404d670cc6c0ebee16977accc7cbcf137ba168b.exe	client32.exe
PID 548 wrote to memory of 940	548	8ccff473270017f72b0910ea0404d670cc6c0ebee16977accc7cbcf137ba168b.exe	client32.exe

C:\Users\Admin\AppData\Local\Temp\8ccff473270017f72b0910ea0404d670cc6c0ebee16977accc7cbcf137ba168b.exe
"C:\Users\Admin\AppData\Local\Temp\8ccff473270017f72b0910ea0404d670cc6c0ebee16977accc7cbcf137ba168b.exe"
1⤵
- Drops startup file
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:548

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:940

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

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\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\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.ini

Filesize
962B

MD5
279b5834fbd890fb90819b6710e0cc00

SHA1
9fb75dff6476aab7f2aaa15496b79eb9f1a44073

SHA256
08a0519dcc85dd524279c7faab604130e6fd508f504719bb1a29f3f0e4d8b34b

SHA512
ede915541925e2b89aa03612a0ba23db2ba9742f7109228b0929883f6c8a0d0eb3a6af4987268729fa72459b3163e09b466c37668aab748bc5ba1eac38059c19

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

Filesize
8KB

MD5
07b474ab5c503f35873b94cd48d01592

SHA1
e6f699d6c021d9d434cc6a4e68516c4c2ac80ddc

SHA256
c8911c298f860de85037f8634e8539627f5a1c13b1fffe5568d63612e29b9cd4

SHA512
a995b0d1fba6e99dd89afbf5161efc18b0268c001c27155876e642abc8639f79c2c320530039cfa5ec9f6ca10e1d716060b0fb86414245f578f920f11c9bbbc8

Download Submit
\Users\Admin\AppData\Roaming\updatewindows23\HTCTL32.DLL

Filesize
299KB

MD5
369388ac78ca4ca8a64219cf9aafad4c

SHA1
dfa6c01c55ac799f041c65df9a35aba8cf0d8c2d

SHA256
c76ee648639406c81469772311c39b46042bf1b91e47d9201908f3cf70407f30

SHA512
7d090f033ffc48b870d692877f3804a69dcb1ff61b96936f1ab77bf42b156839bfd787c387bc7d642c732868e3dcd8c0ff3b319f057c0157b5afc6843b302bc5

Download Submit
\Users\Admin\AppData\Roaming\updatewindows23\PCICHEK.DLL

Filesize
8KB

MD5
07b474ab5c503f35873b94cd48d01592

SHA1
e6f699d6c021d9d434cc6a4e68516c4c2ac80ddc

SHA256
c8911c298f860de85037f8634e8539627f5a1c13b1fffe5568d63612e29b9cd4

SHA512
a995b0d1fba6e99dd89afbf5161efc18b0268c001c27155876e642abc8639f79c2c320530039cfa5ec9f6ca10e1d716060b0fb86414245f578f920f11c9bbbc8

Download Submit
\Users\Admin\AppData\Roaming\updatewindows23\PCICL32.DLL

Filesize
3.3MB

MD5
1274cca13cc5e37ca94d35e5b0673e89

SHA1
a8754c94f88273c304bc45a5afd61a383bb52117

SHA256
cd5510c8bc7ea60be77ad4aab502ee02d871bf4e917aeeb6921c20eebd9693dd

SHA512
52eafa31ee942dc92d0b8f52c12206f6abc1d5fae799b37b371e97c38ce66bd0693263de86b4880748ba1405054701288caf2cd00cd327edc164e1390cf9191c

Download Submit
\Users\Admin\AppData\Roaming\updatewindows23\client32.exe

Filesize
101KB

MD5
c4f1b50e3111d29774f7525039ff7086

SHA1
57539c95cba0986ec8df0fcdea433e7c71b724c6

SHA256
18df68d1581c11130c139fa52abb74dfd098a9af698a250645d6a4a65efcbf2d

SHA512
005db65cedaaccc85525fb3cdab090054bb0bb9cc8c37f8210ec060f490c64945a682b5dd5d00a68ac2b8c58894b6e7d938acaa1130c1cc5667e206d38b942c5

Download Submit
\Users\Admin\AppData\Roaming\updatewindows23\client32.exe

Filesize
101KB

MD5
c4f1b50e3111d29774f7525039ff7086

SHA1
57539c95cba0986ec8df0fcdea433e7c71b724c6

SHA256
18df68d1581c11130c139fa52abb74dfd098a9af698a250645d6a4a65efcbf2d

SHA512
005db65cedaaccc85525fb3cdab090054bb0bb9cc8c37f8210ec060f490c64945a682b5dd5d00a68ac2b8c58894b6e7d938acaa1130c1cc5667e206d38b942c5

Download Submit
\Users\Admin\AppData\Roaming\updatewindows23\client32.exe

Filesize
101KB

MD5
c4f1b50e3111d29774f7525039ff7086

SHA1
57539c95cba0986ec8df0fcdea433e7c71b724c6

SHA256
18df68d1581c11130c139fa52abb74dfd098a9af698a250645d6a4a65efcbf2d

SHA512
005db65cedaaccc85525fb3cdab090054bb0bb9cc8c37f8210ec060f490c64945a682b5dd5d00a68ac2b8c58894b6e7d938acaa1130c1cc5667e206d38b942c5

Download Submit
\Users\Admin\AppData\Roaming\updatewindows23\client32.exe

Filesize
101KB

MD5
c4f1b50e3111d29774f7525039ff7086

SHA1
57539c95cba0986ec8df0fcdea433e7c71b724c6

SHA256
18df68d1581c11130c139fa52abb74dfd098a9af698a250645d6a4a65efcbf2d

SHA512
005db65cedaaccc85525fb3cdab090054bb0bb9cc8c37f8210ec060f490c64945a682b5dd5d00a68ac2b8c58894b6e7d938acaa1130c1cc5667e206d38b942c5

Download Submit
\Users\Admin\AppData\Roaming\updatewindows23\client32.exe

Filesize
101KB

MD5
c4f1b50e3111d29774f7525039ff7086

SHA1
57539c95cba0986ec8df0fcdea433e7c71b724c6

SHA256
18df68d1581c11130c139fa52abb74dfd098a9af698a250645d6a4a65efcbf2d

SHA512
005db65cedaaccc85525fb3cdab090054bb0bb9cc8c37f8210ec060f490c64945a682b5dd5d00a68ac2b8c58894b6e7d938acaa1130c1cc5667e206d38b942c5

Download Submit
\Users\Admin\AppData\Roaming\updatewindows23\msvcr100.dll

Filesize
755KB

MD5
0e37fbfa79d349d672456923ec5fbbe3

SHA1
4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

SHA256
8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

SHA512
2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

Download Submit
\Users\Admin\AppData\Roaming\updatewindows23\pcicapi.dll

Filesize
100KB

MD5
f0d7d2a77eee2b3146405d3ad0d56230

SHA1
37c323faf58584606ee5847cb9a25346c588f78f

SHA256
f043653ab1b8fbe5a33922df5b4fb46797e9694e5fcee807b97cc6aaef650131

SHA512
861258b5b97665f649437fd25aadc5dc66e5bc5a87d7482300f9931810f0d89d0ed9c01890cd038daa7c6d2f1850a3208fc20b3c1dc2e588c7688e228a4baade

Download Submit