netsupport | 42a7b17b7f0d0888a6bec6b27f22d84ea6a6e7b135efe918c16bb8da230626ff

Analysis

max time kernel
135s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
20/05/2023, 01:06

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General

Target

b4d61c536730fbab0d2d81ec2f7bf8cdda541e4fd9200ddf50cf773c90c019c0.exe
Size

2.0MB
MD5

15f7867fee9b4bbcb91168ecc52eb5d2
SHA1

8ab83f49f98b1188de7c52a5bd7bccc3f7b0bd8f
SHA256

b4d61c536730fbab0d2d81ec2f7bf8cdda541e4fd9200ddf50cf773c90c019c0
SHA512

35da5c82e9f7d7be624034625fde2f271cfe8dd8b42d74941499b11fe44665f74caf4d5299d31fc3f647d8edf4ca980f7414ab33f30191d87185c91b44aaae68
SSDEEP

49152:/BrdfcoIsGlR4EpZeYzg/6aU2/trEvGony/78Ro6:5rWBblR4oesg/6ajtovD28

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation	b4d61c536730fbab0d2d81ec2f7bf8cdda541e4fd9200ddf50cf773c90c019c0.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\autorun_2023.ini.lnk	b4d61c536730fbab0d2d81ec2f7bf8cdda541e4fd9200ddf50cf773c90c019c0.exe

Executes dropped EXE 1 IoCs

pid	Process
228	client32.exe

Loads dropped DLL 5 IoCs

pid	Process
228	client32.exe
228	client32.exe
228	client32.exe
228	client32.exe
228	client32.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeSecurityPrivilege	228	client32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
228	client32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3732 wrote to memory of 228	3732	b4d61c536730fbab0d2d81ec2f7bf8cdda541e4fd9200ddf50cf773c90c019c0.exe	81
PID 3732 wrote to memory of 228	3732	b4d61c536730fbab0d2d81ec2f7bf8cdda541e4fd9200ddf50cf773c90c019c0.exe	81
PID 3732 wrote to memory of 228	3732	b4d61c536730fbab0d2d81ec2f7bf8cdda541e4fd9200ddf50cf773c90c019c0.exe	81

C:\Users\Admin\AppData\Local\Temp\b4d61c536730fbab0d2d81ec2f7bf8cdda541e4fd9200ddf50cf773c90c019c0.exe
"C:\Users\Admin\AppData\Local\Temp\b4d61c536730fbab0d2d81ec2f7bf8cdda541e4fd9200ddf50cf773c90c019c0.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Suspicious use of WriteProcessMemory
PID:3732
- C:\Users\Admin\AppData\Roaming\UpdateWin_202317\client32.exe
  "C:\Users\Admin\AppData\Roaming\UpdateWin_202317\client32.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  PID:228

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:\Users\Admin\AppData\Roaming\UpdateWin_202317\HTCTL32.DLL

Filesize
299KB

MD5
369388ac78ca4ca8a64219cf9aafad4c

SHA1
dfa6c01c55ac799f041c65df9a35aba8cf0d8c2d

SHA256
c76ee648639406c81469772311c39b46042bf1b91e47d9201908f3cf70407f30

SHA512
7d090f033ffc48b870d692877f3804a69dcb1ff61b96936f1ab77bf42b156839bfd787c387bc7d642c732868e3dcd8c0ff3b319f057c0157b5afc6843b302bc5

Download Submit
C:\Users\Admin\AppData\Roaming\UpdateWin_202317\HTCTL32.DLL

Filesize
299KB

MD5
369388ac78ca4ca8a64219cf9aafad4c

SHA1
dfa6c01c55ac799f041c65df9a35aba8cf0d8c2d

SHA256
c76ee648639406c81469772311c39b46042bf1b91e47d9201908f3cf70407f30

SHA512
7d090f033ffc48b870d692877f3804a69dcb1ff61b96936f1ab77bf42b156839bfd787c387bc7d642c732868e3dcd8c0ff3b319f057c0157b5afc6843b302bc5

Download Submit
C:\Users\Admin\AppData\Roaming\UpdateWin_202317\MSVCR100.dll

Filesize
755KB

MD5
0e37fbfa79d349d672456923ec5fbbe3

SHA1
4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

SHA256
8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

SHA512
2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

Download Submit
C:\Users\Admin\AppData\Roaming\UpdateWin_202317\NSM.LIC

Filesize
259B

MD5
a69c513e526ff2985e16ba01cad6df8c

SHA1
7150bcd99d437b6e2bfecfa985c7cbb0e61a3820

SHA256
f35df375fe7090e85a0e151cd65cbbf50ade5e060a31692197bbfbc84dea7bf0

SHA512
87136d98b11ef43cbaae142ed61f306764baf39d75fe92d10261f2b2f1e4da94bc059ec69a11ca5753a9e3be348dc9e368cb15634d1fa09df9f994faea68b56e

Download Submit
C:\Users\Admin\AppData\Roaming\UpdateWin_202317\PCICAPI.dll

Filesize
100KB

MD5
f0d7d2a77eee2b3146405d3ad0d56230

SHA1
37c323faf58584606ee5847cb9a25346c588f78f

SHA256
f043653ab1b8fbe5a33922df5b4fb46797e9694e5fcee807b97cc6aaef650131

SHA512
861258b5b97665f649437fd25aadc5dc66e5bc5a87d7482300f9931810f0d89d0ed9c01890cd038daa7c6d2f1850a3208fc20b3c1dc2e588c7688e228a4baade

Download Submit
C:\Users\Admin\AppData\Roaming\UpdateWin_202317\PCICHEK.DLL

Filesize
8KB

MD5
07b474ab5c503f35873b94cd48d01592

SHA1
e6f699d6c021d9d434cc6a4e68516c4c2ac80ddc

SHA256
c8911c298f860de85037f8634e8539627f5a1c13b1fffe5568d63612e29b9cd4

SHA512
a995b0d1fba6e99dd89afbf5161efc18b0268c001c27155876e642abc8639f79c2c320530039cfa5ec9f6ca10e1d716060b0fb86414245f578f920f11c9bbbc8

Download Submit
C:\Users\Admin\AppData\Roaming\UpdateWin_202317\PCICL32.DLL

Filesize
3.3MB

MD5
1274cca13cc5e37ca94d35e5b0673e89

SHA1
a8754c94f88273c304bc45a5afd61a383bb52117

SHA256
cd5510c8bc7ea60be77ad4aab502ee02d871bf4e917aeeb6921c20eebd9693dd

SHA512
52eafa31ee942dc92d0b8f52c12206f6abc1d5fae799b37b371e97c38ce66bd0693263de86b4880748ba1405054701288caf2cd00cd327edc164e1390cf9191c

Download Submit
C:\Users\Admin\AppData\Roaming\UpdateWin_202317\PCICL32.dll

Filesize
3.3MB

MD5
1274cca13cc5e37ca94d35e5b0673e89

SHA1
a8754c94f88273c304bc45a5afd61a383bb52117

SHA256
cd5510c8bc7ea60be77ad4aab502ee02d871bf4e917aeeb6921c20eebd9693dd

SHA512
52eafa31ee942dc92d0b8f52c12206f6abc1d5fae799b37b371e97c38ce66bd0693263de86b4880748ba1405054701288caf2cd00cd327edc164e1390cf9191c

Download Submit
C:\Users\Admin\AppData\Roaming\UpdateWin_202317\client32.exe

Filesize
101KB

MD5
c4f1b50e3111d29774f7525039ff7086

SHA1
57539c95cba0986ec8df0fcdea433e7c71b724c6

SHA256
18df68d1581c11130c139fa52abb74dfd098a9af698a250645d6a4a65efcbf2d

SHA512
005db65cedaaccc85525fb3cdab090054bb0bb9cc8c37f8210ec060f490c64945a682b5dd5d00a68ac2b8c58894b6e7d938acaa1130c1cc5667e206d38b942c5

Download Submit
C:\Users\Admin\AppData\Roaming\UpdateWin_202317\client32.exe

Filesize
101KB

MD5
c4f1b50e3111d29774f7525039ff7086

SHA1
57539c95cba0986ec8df0fcdea433e7c71b724c6

SHA256
18df68d1581c11130c139fa52abb74dfd098a9af698a250645d6a4a65efcbf2d

SHA512
005db65cedaaccc85525fb3cdab090054bb0bb9cc8c37f8210ec060f490c64945a682b5dd5d00a68ac2b8c58894b6e7d938acaa1130c1cc5667e206d38b942c5

Download Submit
C:\Users\Admin\AppData\Roaming\UpdateWin_202317\client32.exe

Filesize
101KB

MD5
c4f1b50e3111d29774f7525039ff7086

SHA1
57539c95cba0986ec8df0fcdea433e7c71b724c6

SHA256
18df68d1581c11130c139fa52abb74dfd098a9af698a250645d6a4a65efcbf2d

SHA512
005db65cedaaccc85525fb3cdab090054bb0bb9cc8c37f8210ec060f490c64945a682b5dd5d00a68ac2b8c58894b6e7d938acaa1130c1cc5667e206d38b942c5

Download Submit
C:\Users\Admin\AppData\Roaming\UpdateWin_202317\client32.ini

Filesize
973B

MD5
ed3db54979b289c9bfd5127ece806259

SHA1
1cd0318746eeacf8fdcd78a6eac61690bb563e39

SHA256
5e32caff84582bdc67843d44bc3213f4bcc4da6944da5f8e1035b15b669e0b45

SHA512
f7874727d30d4383ea00adf39f574494e8e7c7310e09287af66bc1a4066c8acf6572c20f55f12ac307ee5f19a6293949393ff28844fd6a4840ef372689a5d6f9

Download Submit
C:\Users\Admin\AppData\Roaming\UpdateWin_202317\msvcr100.dll

Filesize
755KB

MD5
0e37fbfa79d349d672456923ec5fbbe3

SHA1
4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

SHA256
8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

SHA512
2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

Download Submit
C:\Users\Admin\AppData\Roaming\UpdateWin_202317\pcicapi.dll

Filesize
100KB

MD5
f0d7d2a77eee2b3146405d3ad0d56230

SHA1
37c323faf58584606ee5847cb9a25346c588f78f

SHA256
f043653ab1b8fbe5a33922df5b4fb46797e9694e5fcee807b97cc6aaef650131

SHA512
861258b5b97665f649437fd25aadc5dc66e5bc5a87d7482300f9931810f0d89d0ed9c01890cd038daa7c6d2f1850a3208fc20b3c1dc2e588c7688e228a4baade

Download Submit
C:\Users\Admin\AppData\Roaming\UpdateWin_202317\pcichek.dll

Filesize
8KB

MD5
07b474ab5c503f35873b94cd48d01592

SHA1
e6f699d6c021d9d434cc6a4e68516c4c2ac80ddc

SHA256
c8911c298f860de85037f8634e8539627f5a1c13b1fffe5568d63612e29b9cd4

SHA512
a995b0d1fba6e99dd89afbf5161efc18b0268c001c27155876e642abc8639f79c2c320530039cfa5ec9f6ca10e1d716060b0fb86414245f578f920f11c9bbbc8

Download Submit