netsupport | 9431c7d585f31d959ca97d5955a9ec2c83f51b379de0b89c3d74f64c1e288f46

Analysis

max time kernel
138s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
28-10-2024 13:57

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General

Target

target.ps1
Size

150B
MD5

278c824586609106fac34d9cfb5713a9
SHA1

6fde4f27b9ce91981b9c1aa33c3da5bab33d16da
SHA256

9431c7d585f31d959ca97d5955a9ec2c83f51b379de0b89c3d74f64c1e288f46
SHA512

3539709a495bb0632f285757011c431fb057ed894922f196a13a732cbb0dabdf752d2e6c084696921f5bb21d0aaa06bb8f8e351cfa7398d258ce9b051936c8f3

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

Processes:

powershell.exe

flow	pid	Process
5	1736	powershell.exe

Downloads MZ/PE file

Executes dropped EXE 1 IoCs

Processes:

client32.exe

pid	Process
1724	client32.exe

Loads dropped DLL 5 IoCs

Processes:

client32.exe

pid	Process
1724	client32.exe
1724	client32.exe
1724	client32.exe
1724	client32.exe
1724	client32.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

powershell.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Microsoft = "C:\\Users\\Admin\\AppData\\Roaming\\FxkiwP\\client32.exe"	powershell.exe

Hide Artifacts: Hidden Files and Directories 1 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

Processes:

cmd.exe

pid	Process
4576	cmd.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

Processes:

powershell.exe

pid	Process
1736	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

Processes:

client32.exe

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

Processes:

ipconfig.exe

pid	Process
228	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid	Process
1736	powershell.exe
1736	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.execlient32.exe

description	pid	Process
Token: SeDebugPrivilege	1736	powershell.exe
Token: SeSecurityPrivilege	1724	client32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

client32.exe

pid	Process
1724	client32.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

powershell.execmd.exe

description	pid	Process	procid_target
PID 1736 wrote to memory of 228	1736	powershell.exe	85
PID 1736 wrote to memory of 228	1736	powershell.exe	85
PID 1736 wrote to memory of 4576	1736	powershell.exe	86
PID 1736 wrote to memory of 4576	1736	powershell.exe	86
PID 4576 wrote to memory of 4416	4576	cmd.exe	87
PID 4576 wrote to memory of 4416	4576	cmd.exe	87
PID 1736 wrote to memory of 1724	1736	powershell.exe	99
PID 1736 wrote to memory of 1724	1736	powershell.exe	99
PID 1736 wrote to memory of 1724	1736	powershell.exe	99

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

Processes:

attrib.exe

pid	Process
4416	attrib.exe

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\target.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:1736
- C:\Windows\system32\ipconfig.exe
  "C:\Windows\system32\ipconfig.exe" /flushdns
  2⤵
  - Gathers network information
  PID:228
- C:\Windows\system32\cmd.exe
  "C:\Windows\system32\cmd.exe" /c attrib +h C:\Users\Admin\AppData\Roaming\FxkiwP
  2⤵
  - Hide Artifacts: Hidden Files and Directories
  - Suspicious use of WriteProcessMemory
  PID:4576
- - C:\Windows\system32\attrib.exe
    attrib +h C:\Users\Admin\AppData\Roaming\FxkiwP
    3⤵
    - Views/modifies file attributes
    PID:4416
- C:\Users\Admin\AppData\Roaming\FxkiwP\client32.exe
  "C:\Users\Admin\AppData\Roaming\FxkiwP\client32.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  PID:1724

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_n1nnp4lx.y24.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
320KB

MD5
2d3b207c8a48148296156e5725426c7f

SHA1
ad464eb7cf5c19c8a443ab5b590440b32dbc618f

SHA256
edfe2b923bfb5d1088de1611401f5c35ece91581e71503a5631647ac51f7d796

SHA512
55c791705993b83c9b26a8dbd545d7e149c42ee358ecece638128ee271e85b4fdbfd6fbae61d13533bf39ae752144e2cc2c5edcda955f18c37a785084db0860c

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

Filesize
257B

MD5
7067af414215ee4c50bfcd3ea43c84f0

SHA1
c331d410672477844a4ca87f43a14e643c863af9

SHA256
2050cc232710a2ea6a207bc78d1eac66a4042f2ee701cdfeee5de3ddcdc31d12

SHA512
17b888087192bcea9f56128d0950423b1807e294d1c4f953d1bf0f5bd08e5f8e35afeee584ebf9233bfc44e0723db3661911415798159ac118c8a42aaf0b902f

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

Filesize
18KB

MD5
a0b9388c5f18e27266a31f8c5765b263

SHA1
906f7e94f841d464d4da144f7c858fa2160e36db

SHA256
313117e723dda6ea3911faacd23f4405003fb651c73de8deff10b9eb5b4a058a

SHA512
6051a0b22af135b4433474dc7c6f53fb1c06844d0a30ed596a3c6c80644df511b023e140c4878867fa2578c79695fac2eb303aea87c0ecfc15a4ad264bd0b3cd

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

Filesize
3.6MB

MD5
00587238d16012152c2e951a087f2cc9

SHA1
c4e27a43075ce993ff6bb033360af386b2fc58ff

SHA256
63aa18c32af7144156e7ee2d5ba0fa4f5872a7deb56894f6f96505cbc9afe6f8

SHA512
637950a1f78d3f3d02c30a49a16e91cf3dfccc59104041876789bd7fdf9224d187209547766b91404c67319e13d1606da7cec397315495962cbf3e2ccd5f1226

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

Filesize
117KB

MD5
ee75b57b9300aab96530503bfae8a2f2

SHA1
98dd757e1c1fa8b5605bda892aa0b82ebefa1f07

SHA256
06a0a243811e9c4738a9d413597659ca8d07b00f640b74adc9cb351c179b3268

SHA512
660259bb0fd317c7fb76505da8cbc477e146615fec10e02779cd4f527aeb00caed833af72f90b128bb62f10326209125e809712d9acb41017e503126e5f85673

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

Filesize
647B

MD5
8c978a6d8f380d59c9db4afe06218b89

SHA1
1fa286e91c8aa0eeb99276af72d40e02d2148c51

SHA256
d8c2b28ff9f90626f7e669b4fbdb45ed553a3cb1a980e23fdfea4fbbdddfc502

SHA512
b74539ae7fc88756c1e1404814d33197cd8709aaddf2c43167f2cf157e947c2cabad759414038dbe5e83b201786052e94ab53bd97bb4de68744f514f8ae7f552

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

Filesize
755KB

MD5
0e37fbfa79d349d672456923ec5fbbe3

SHA1
4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

SHA256
8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

SHA512
2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

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

Filesize
32KB

MD5
dcde2248d19c778a41aa165866dd52d0

SHA1
7ec84be84fe23f0b0093b647538737e1f19ebb03

SHA256
9074fd40ea6a0caa892e6361a6a4e834c2e51e6e98d1ffcda7a9a537594a6917

SHA512
c5d170d420f1aeb9bcd606a282af6e8da04ae45c83d07faaacb73ff2e27f4188b09446ce508620124f6d9b447a40a23620cfb39b79f02b04bb9e513866352166

Download Submit
memory/1736-26-0x00007FFF3DBE0000-0x00007FFF3E6A1000-memory.dmp

Filesize
10.8MB

Download
memory/1736-22-0x00007FFF3DBE3000-0x00007FFF3DBE5000-memory.dmp

Filesize
8KB

Download
memory/1736-12-0x00007FFF3DBE0000-0x00007FFF3E6A1000-memory.dmp

Filesize
10.8MB

Download
memory/1736-0-0x00007FFF3DBE3000-0x00007FFF3DBE5000-memory.dmp

Filesize
8KB

Download
memory/1736-11-0x00007FFF3DBE0000-0x00007FFF3E6A1000-memory.dmp

Filesize
10.8MB

Download
memory/1736-1-0x0000025C781F0000-0x0000025C78212000-memory.dmp

Filesize
136KB

Download
memory/1736-51-0x00007FFF3DBE0000-0x00007FFF3E6A1000-memory.dmp

Filesize
10.8MB

Download