netsupport | a6f4b90b39688c9920b9f8198e559e3ace42e46d5a31811dffbfb4c2532faf93

Analysis

max time kernel
94s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19-12-2024 19:09

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General

Target

o.ps1
Size

1KB
MD5

a9053a6606748a87a135b942eb47a8c0
SHA1

6062cea39903e0bdfa10c45e54c335d88be71962
SHA256

a6f4b90b39688c9920b9f8198e559e3ace42e46d5a31811dffbfb4c2532faf93
SHA512

39bdd26201c1bee319447dde6c132a159403d6a1bf2b44be8ab0d2730aad45b7ba800f55d5a45c6bb9376a8d297cacfe10ab659234fa4846fd08fb7f2e328be5

Score

10^/10

netsupport defense_evasion discovery execution persistence rat

Malware Config

Signatures

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

Blocklisted process makes network request 1 IoCs

flow	pid	Process
7	4996	powershell.exe

Downloads MZ/PE file

Executes dropped EXE 1 IoCs

pid	Process
1552	client32.exe

Loads dropped DLL 5 IoCs

pid	Process
1552	client32.exe
1552	client32.exe
1552	client32.exe
1552	client32.exe
1552	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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Microsoft = "C:\\Users\\Admin\\AppData\\Roaming\\EXbxmL\\client32.exe"	powershell.exe

Hide Artifacts: Hidden Files and Directories 1 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
4488	cmd.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
4996	powershell.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	client32.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
1760	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4996	powershell.exe
4996	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4996	powershell.exe
Token: SeSecurityPrivilege	1552	client32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1552	client32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4996 wrote to memory of 1760	4996	powershell.exe	86
PID 4996 wrote to memory of 1760	4996	powershell.exe	86
PID 4996 wrote to memory of 4488	4996	powershell.exe	87
PID 4996 wrote to memory of 4488	4996	powershell.exe	87
PID 4488 wrote to memory of 3140	4488	cmd.exe	88
PID 4488 wrote to memory of 3140	4488	cmd.exe	88
PID 4996 wrote to memory of 1552	4996	powershell.exe	103
PID 4996 wrote to memory of 1552	4996	powershell.exe	103
PID 4996 wrote to memory of 1552	4996	powershell.exe	103

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3140	attrib.exe

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\o.ps1
1⤵
- Blocklisted process makes network request
- Adds Run key to start application
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4996
- C:\Windows\system32\ipconfig.exe
  "C:\Windows\system32\ipconfig.exe" /flushdns
  2⤵
  - Gathers network information
  PID:1760
- C:\Windows\system32\cmd.exe
  "C:\Windows\system32\cmd.exe" /c attrib +h C:\Users\Admin\AppData\Roaming\EXbxmL
  2⤵
  - Hide Artifacts: Hidden Files and Directories
  - Suspicious use of WriteProcessMemory
  PID:4488
- - C:\Windows\system32\attrib.exe
    attrib +h C:\Users\Admin\AppData\Roaming\EXbxmL
    3⤵
    - Views/modifies file attributes
    PID:3140
- C:\Users\Admin\AppData\Roaming\EXbxmL\client32.exe
  "C:\Users\Admin\AppData\Roaming\EXbxmL\client32.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  PID:1552

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

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

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_pmedroua.rf5.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
320KB

MD5
2d3b207c8a48148296156e5725426c7f

SHA1
ad464eb7cf5c19c8a443ab5b590440b32dbc618f

SHA256
edfe2b923bfb5d1088de1611401f5c35ece91581e71503a5631647ac51f7d796

SHA512
55c791705993b83c9b26a8dbd545d7e149c42ee358ecece638128ee271e85b4fdbfd6fbae61d13533bf39ae752144e2cc2c5edcda955f18c37a785084db0860c

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

Filesize
257B

MD5
390c964070626a64888d385c514f568e

SHA1
a556209655dcb5e939fd404f57d199f2bb6da9b3

SHA256
ad0d05305fdeb3736c1e8d49c3a6746073d27b4703eb6de6589bdc4aa72d7b54

SHA512
f089c59a24f33410cf98fba7ea0dd2ca0fd997efc9a03e5355cde3c1a1f4a78b13cebd387099b9de824bffea01c489d8f0e90df56f89973007dabb6afdde607f

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

Filesize
3.6MB

MD5
00587238d16012152c2e951a087f2cc9

SHA1
c4e27a43075ce993ff6bb033360af386b2fc58ff

SHA256
63aa18c32af7144156e7ee2d5ba0fa4f5872a7deb56894f6f96505cbc9afe6f8

SHA512
637950a1f78d3f3d02c30a49a16e91cf3dfccc59104041876789bd7fdf9224d187209547766b91404c67319e13d1606da7cec397315495962cbf3e2ccd5f1226

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

Filesize
117KB

MD5
ee75b57b9300aab96530503bfae8a2f2

SHA1
98dd757e1c1fa8b5605bda892aa0b82ebefa1f07

SHA256
06a0a243811e9c4738a9d413597659ca8d07b00f640b74adc9cb351c179b3268

SHA512
660259bb0fd317c7fb76505da8cbc477e146615fec10e02779cd4f527aeb00caed833af72f90b128bb62f10326209125e809712d9acb41017e503126e5f85673

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

Filesize
703B

MD5
d412d48f7feef7152f21954df3f71f02

SHA1
a1586828441b99ced298bbca583a13b79d440e15

SHA256
df73a60e2475c1e585fc8e0a62f89be7afef06ca2b777144f6802df8320d835e

SHA512
e3f7d23a9ff316c7b99330bf9a894e9b081c748063d5af5ea8bb5030acd9978a7f3fa517d3ba51098ffb7ad0b4c618312331db3dc76a99d5e5041b3a82572499

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

Filesize
755KB

MD5
0e37fbfa79d349d672456923ec5fbbe3

SHA1
4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

SHA256
8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

SHA512
2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

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

Filesize
32KB

MD5
dcde2248d19c778a41aa165866dd52d0

SHA1
7ec84be84fe23f0b0093b647538737e1f19ebb03

SHA256
9074fd40ea6a0caa892e6361a6a4e834c2e51e6e98d1ffcda7a9a537594a6917

SHA512
c5d170d420f1aeb9bcd606a282af6e8da04ae45c83d07faaacb73ff2e27f4188b09446ce508620124f6d9b447a40a23620cfb39b79f02b04bb9e513866352166

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

Filesize
18KB

MD5
a0b9388c5f18e27266a31f8c5765b263

SHA1
906f7e94f841d464d4da144f7c858fa2160e36db

SHA256
313117e723dda6ea3911faacd23f4405003fb651c73de8deff10b9eb5b4a058a

SHA512
6051a0b22af135b4433474dc7c6f53fb1c06844d0a30ed596a3c6c80644df511b023e140c4878867fa2578c79695fac2eb303aea87c0ecfc15a4ad264bd0b3cd

Download Submit
memory/4996-12-0x00007FFA07DA0000-0x00007FFA08861000-memory.dmp

Filesize
10.8MB

Download
memory/4996-27-0x00007FFA07DA0000-0x00007FFA08861000-memory.dmp

Filesize
10.8MB

Download
memory/4996-25-0x00007FFA07DA0000-0x00007FFA08861000-memory.dmp

Filesize
10.8MB

Download
memory/4996-23-0x00007FFA07DA0000-0x00007FFA08861000-memory.dmp

Filesize
10.8MB

Download
memory/4996-22-0x00007FFA07DA3000-0x00007FFA07DA5000-memory.dmp

Filesize
8KB

Download
memory/4996-14-0x00007FFA07DA0000-0x00007FFA08861000-memory.dmp

Filesize
10.8MB

Download
memory/4996-0-0x00007FFA07DA3000-0x00007FFA07DA5000-memory.dmp

Filesize
8KB

Download
memory/4996-11-0x00007FFA07DA0000-0x00007FFA08861000-memory.dmp

Filesize
10.8MB

Download
memory/4996-52-0x00007FFA07DA0000-0x00007FFA08861000-memory.dmp

Filesize
10.8MB

Download
memory/4996-6-0x0000022BF50D0000-0x0000022BF50F2000-memory.dmp

Filesize
136KB

Download