netsupport | 12cda2b4c69e83ff66a7e583597e6182cc95211c305829b586301906e6351949

Analysis

max time kernel
30s
max time network
131s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
26-03-2023 08:41

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General

Target

359dc605a71b25b69d2e7673202c79c2.exe
Size

2.1MB
MD5

359dc605a71b25b69d2e7673202c79c2
SHA1

e915fd1a5f8483991069cc41abf872489faa7a19
SHA256

12cda2b4c69e83ff66a7e583597e6182cc95211c305829b586301906e6351949
SHA512

679cdcbaefd73ed866e9e1c8650a8922544acc530c7db792d23bda086d040f35c9665736f1b8d4efbf4456213dec3468a330350bcfcd1acef8810ace0764f3a3
SSDEEP

49152:tt6iaPw71zyI2im0OoGZ3/uHOo8PWVjnJEZGVuuRkKsN/CrgjNQ:tt6iaPw71zP2ib7TaW7EZGUQvsAONQ

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:

359dc605a71b25b69d2e7673202c79c2.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\autoruns.ini.lnk	359dc605a71b25b69d2e7673202c79c2.exe

Executes dropped EXE 1 IoCs

Processes:

client32.exe

pid process

1192 client32.exe

pid	process
1192	client32.exe

Loads dropped DLL 7 IoCs

Processes:

359dc605a71b25b69d2e7673202c79c2.execlient32.exe

pid	process
1476	359dc605a71b25b69d2e7673202c79c2.exe
1476	359dc605a71b25b69d2e7673202c79c2.exe
1192	client32.exe
1192	client32.exe
1192	client32.exe
1192	client32.exe
1192	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 1192 client32.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

client32.exe

pid process

1192 client32.exe

description	pid	process
Token: SeSecurityPrivilege	1192	client32.exe

pid	process
1192	client32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

359dc605a71b25b69d2e7673202c79c2.exe

description	pid	process	target process
PID 1476 wrote to memory of 1192	1476	359dc605a71b25b69d2e7673202c79c2.exe	client32.exe
PID 1476 wrote to memory of 1192	1476	359dc605a71b25b69d2e7673202c79c2.exe	client32.exe
PID 1476 wrote to memory of 1192	1476	359dc605a71b25b69d2e7673202c79c2.exe	client32.exe
PID 1476 wrote to memory of 1192	1476	359dc605a71b25b69d2e7673202c79c2.exe	client32.exe
PID 1476 wrote to memory of 1192	1476	359dc605a71b25b69d2e7673202c79c2.exe	client32.exe
PID 1476 wrote to memory of 1192	1476	359dc605a71b25b69d2e7673202c79c2.exe	client32.exe
PID 1476 wrote to memory of 1192	1476	359dc605a71b25b69d2e7673202c79c2.exe	client32.exe

C:\Users\Admin\AppData\Local\Temp\359dc605a71b25b69d2e7673202c79c2.exe
"C:\Users\Admin\AppData\Local\Temp\359dc605a71b25b69d2e7673202c79c2.exe"
1⤵
- Drops startup file
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1476

C:\Users\Admin\AppData\Roaming\WinSUpdate\client32.exe
"C:\Users\Admin\AppData\Roaming\WinSUpdate\client32.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:1192

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\WinSUpdate\HTCTL32.DLL
Filesize
320KB

MD5
c94005d2dcd2a54e40510344e0bb9435

SHA1
55b4a1620c5d0113811242c20bd9870a1e31d542

SHA256
3c072532bf7674d0c5154d4d22a9d9c0173530c0d00f69911cdbc2552175d899

SHA512
2e6f673864a54b1dcad9532ef9b18a9c45c0844f1f53e699fade2f41e43fa5cbc9b8e45e6f37b95f84cf6935a96fba2950ee3e0e9542809fd288fefba34ddd6a

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

MD5
0e37fbfa79d349d672456923ec5fbbe3

SHA1
4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

SHA256
8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

SHA512
2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

Download Submit
C:\Users\Admin\AppData\Roaming\WinSUpdate\NSM.LIC
Filesize
258B

MD5
33e68d7e9c774aab1980f2dd2a39b6e4

SHA1
3c5d1022686b5e30e7f624024eb8e226b3be4526

SHA256
1740227293516f314769787d3b3ea3984763f9359eba68c0c1e0a246c0f0a7c6

SHA512
377f09d152c21f4afbeaa169e9f49a802b7c48da02371037a50157a582f0ddddd52212611ea0ccb1ca01165c4f7cd7e989e34316495257b37b3f6a2d60204b4f

Download Submit
C:\Users\Admin\AppData\Roaming\WinSUpdate\PCICL32.dll
Filesize
3.6MB

MD5
d3d39180e85700f72aaae25e40c125ff

SHA1
f3404ef6322f5c6e7862b507d05b8f4b7f1c7d15

SHA256
38684adb2183bf320eb308a96cdbde8d1d56740166c3e2596161f42a40fa32d5

SHA512
471ac150e93a182d135e5483d6b1492f08a49f5ccab420732b87210f2188be1577ceaaee4ce162a7acceff5c17cdd08dc51b1904228275f6bbde18022ec79d2f

Download Submit
C:\Users\Admin\AppData\Roaming\WinSUpdate\client32.exe
Filesize
103KB

MD5
c60ac6a6e6e582ab0ecb1fdbd607705b

SHA1
ba9de479beb82fd97bbdfbc04ef22e08224724ba

SHA256
4d24b359176389301c14a92607b5c26b8490c41e7e3a2abbc87510d1376f4a87

SHA512
f91b964f8b9a0e7445fc260b8c75c831e7ce462701a64a39989304468c9c5ab5d1e8bfe376940484f824b399aef903bf51c679fcf45208426fff7e4e518482ca

Download Submit
C:\Users\Admin\AppData\Roaming\WinSUpdate\client32.exe
Filesize
103KB

MD5
c60ac6a6e6e582ab0ecb1fdbd607705b

SHA1
ba9de479beb82fd97bbdfbc04ef22e08224724ba

SHA256
4d24b359176389301c14a92607b5c26b8490c41e7e3a2abbc87510d1376f4a87

SHA512
f91b964f8b9a0e7445fc260b8c75c831e7ce462701a64a39989304468c9c5ab5d1e8bfe376940484f824b399aef903bf51c679fcf45208426fff7e4e518482ca

Download Submit
C:\Users\Admin\AppData\Roaming\WinSUpdate\client32.ini
Filesize
927B

MD5
da9e054ffa1a0965b8df9b2c88fd7172

SHA1
7a0c9a9edd837d015656c394ecbb1bdd248583f2

SHA256
aa330c62017798f73298697db704ca2fa0e07867ddfc6c947de53bf39642e307

SHA512
646d18f0188b747e64db3968e4745aefddb5c4c54b03df7c640dc020b6e91daf668d2b650f7e4afa30d4659642fe3d12217884dac355f502efaefef5f7b61594

Download Submit
C:\Users\Admin\AppData\Roaming\WinSUpdate\pcicapi.dll
Filesize
32KB

MD5
34dfb87e4200d852d1fb45dc48f93cfc

SHA1
35b4e73fb7c8d4c3fefb90b7e7dc19f3e653c641

SHA256
2d6c6200508c0797e6542b195c999f3485c4ef76551aa3c65016587788ba1703

SHA512
f5bb4e700322cbaa5069244812a9b6ce6899ce15b4fd6384a3e8be421e409e4526b2f67fe210394cd47c4685861faf760eff9af77209100b82b2e0655581c9b2

Download Submit
C:\Users\Admin\AppData\Roaming\WinSUpdate\pcichek.dll
Filesize
18KB

MD5
104b30fef04433a2d2fd1d5f99f179fe

SHA1
ecb08e224a2f2772d1e53675bedc4b2c50485a41

SHA256
956b9fa960f913cce3137089c601f3c64cc24c54614b02bba62abb9610a985dd

SHA512
5efcaa8c58813c3a0a6026cd7f3b34ad4fb043fd2d458db2e914429be2b819f1ac74e2d35e4439601cf0cb50fcdcafdcf868da328eaaeec15b0a4a6b8b2c218f

Download Submit
\Users\Admin\AppData\Roaming\WinSUpdate\HTCTL32.DLL
Filesize
320KB

MD5
c94005d2dcd2a54e40510344e0bb9435

SHA1
55b4a1620c5d0113811242c20bd9870a1e31d542

SHA256
3c072532bf7674d0c5154d4d22a9d9c0173530c0d00f69911cdbc2552175d899

SHA512
2e6f673864a54b1dcad9532ef9b18a9c45c0844f1f53e699fade2f41e43fa5cbc9b8e45e6f37b95f84cf6935a96fba2950ee3e0e9542809fd288fefba34ddd6a

Download Submit
\Users\Admin\AppData\Roaming\WinSUpdate\PCICHEK.DLL
Filesize
18KB

MD5
104b30fef04433a2d2fd1d5f99f179fe

SHA1
ecb08e224a2f2772d1e53675bedc4b2c50485a41

SHA256
956b9fa960f913cce3137089c601f3c64cc24c54614b02bba62abb9610a985dd

SHA512
5efcaa8c58813c3a0a6026cd7f3b34ad4fb043fd2d458db2e914429be2b819f1ac74e2d35e4439601cf0cb50fcdcafdcf868da328eaaeec15b0a4a6b8b2c218f

Download Submit
\Users\Admin\AppData\Roaming\WinSUpdate\PCICL32.DLL
Filesize
3.6MB

MD5
d3d39180e85700f72aaae25e40c125ff

SHA1
f3404ef6322f5c6e7862b507d05b8f4b7f1c7d15

SHA256
38684adb2183bf320eb308a96cdbde8d1d56740166c3e2596161f42a40fa32d5

SHA512
471ac150e93a182d135e5483d6b1492f08a49f5ccab420732b87210f2188be1577ceaaee4ce162a7acceff5c17cdd08dc51b1904228275f6bbde18022ec79d2f

Download Submit
\Users\Admin\AppData\Roaming\WinSUpdate\client32.exe
Filesize
103KB

MD5
c60ac6a6e6e582ab0ecb1fdbd607705b

SHA1
ba9de479beb82fd97bbdfbc04ef22e08224724ba

SHA256
4d24b359176389301c14a92607b5c26b8490c41e7e3a2abbc87510d1376f4a87

SHA512
f91b964f8b9a0e7445fc260b8c75c831e7ce462701a64a39989304468c9c5ab5d1e8bfe376940484f824b399aef903bf51c679fcf45208426fff7e4e518482ca

Download Submit
\Users\Admin\AppData\Roaming\WinSUpdate\client32.exe
Filesize
103KB

MD5
c60ac6a6e6e582ab0ecb1fdbd607705b

SHA1
ba9de479beb82fd97bbdfbc04ef22e08224724ba

SHA256
4d24b359176389301c14a92607b5c26b8490c41e7e3a2abbc87510d1376f4a87

SHA512
f91b964f8b9a0e7445fc260b8c75c831e7ce462701a64a39989304468c9c5ab5d1e8bfe376940484f824b399aef903bf51c679fcf45208426fff7e4e518482ca

Download Submit
\Users\Admin\AppData\Roaming\WinSUpdate\msvcr100.dll
Filesize
755KB

MD5
0e37fbfa79d349d672456923ec5fbbe3

SHA1
4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

SHA256
8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

SHA512
2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

Download Submit
\Users\Admin\AppData\Roaming\WinSUpdate\pcicapi.dll
Filesize
32KB

MD5
34dfb87e4200d852d1fb45dc48f93cfc

SHA1
35b4e73fb7c8d4c3fefb90b7e7dc19f3e653c641

SHA256
2d6c6200508c0797e6542b195c999f3485c4ef76551aa3c65016587788ba1703

SHA512
f5bb4e700322cbaa5069244812a9b6ce6899ce15b4fd6384a3e8be421e409e4526b2f67fe210394cd47c4685861faf760eff9af77209100b82b2e0655581c9b2

Download Submit