netsupport | b2daa2b5afb389828e088ec8b27c0636bdad94b2ef71dcf8034ee601cb60d8d6

Analysis

max time kernel
64s
max time network
70s
platform
windows11-21h2_x64
resource
win11-20241023-en
resource tags

arch:x64arch:x86image:win11-20241023-enlocale:en-usos:windows11-21h2-x64system
submitted
07-11-2024 15:10

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General

Target

990.ps1
Size

2KB
MD5

6025de95cdf08c8f7574c7657922a38f
SHA1

7c178482ab786d0c8feb909255f656b172037f46
SHA256

b2daa2b5afb389828e088ec8b27c0636bdad94b2ef71dcf8034ee601cb60d8d6
SHA512

0494771a03bb1a7d0ca29cc9807384ccd3571e5f5a4396dfbea6623eff92553f50c4d74e063b021beb23b726718556ac3e7a6eb62e69aab88310ab5644917c32

Score

10^/10

netsupport 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
2	3724	powershell.exe

Executes dropped EXE 2 IoCs

pid	Process
3960	zz.exe
1308	client32.exe

Loads dropped DLL 6 IoCs

pid	Process
3960	zz.exe
1308	client32.exe
1308	client32.exe
1308	client32.exe
1308	client32.exe
1308	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-1-5-21-4248760313-3670024077-2384670640-1000\Software\Microsoft\Windows\CurrentVersion\Run\NsSupport = "C:\\Users\\Admin\\AppData\\Roaming\\Ns\\client32.exe"	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
3724	powershell.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	zz.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	client32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3724	powershell.exe
3724	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	3724	powershell.exe
Token: SeRestorePrivilege	3960	zz.exe
Token: 35	3960	zz.exe
Token: SeSecurityPrivilege	3960	zz.exe
Token: SeSecurityPrivilege	3960	zz.exe
Token: SeSecurityPrivilege	1308	client32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1308	client32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3724 wrote to memory of 3960	3724	powershell.exe	81
PID 3724 wrote to memory of 3960	3724	powershell.exe	81
PID 3724 wrote to memory of 3960	3724	powershell.exe	81
PID 3724 wrote to memory of 1308	3724	powershell.exe	82
PID 3724 wrote to memory of 1308	3724	powershell.exe	82
PID 3724 wrote to memory of 1308	3724	powershell.exe	82

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\990.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:3724
- C:\Users\Admin\AppData\Roaming\zz.exe
  "C:\Users\Admin\AppData\Roaming\zz.exe" x b.vue -pkek -aoa -y
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:3960
- C:\Users\Admin\AppData\Roaming\Ns\client32.exe
  "C:\Users\Admin\AppData\Roaming\Ns\client32.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  PID:1308

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:3140

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

Modify Registry

T1112

Credential Access

Discovery

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_rczhe3gq.4zl.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\7z.dll

Filesize
1.1MB

MD5
95c6515d88e9ea48a9b949a81c1dac4e

SHA1
c93eeb4241f69fea44c4d8ccdde03f3b40a6be3f

SHA256
b17c3e4058aacdcc36b18858d128d6b3058e0ea607a4dc59eb95b18b7c6acc7c

SHA512
d4474418a9290d89bff9ca58249e501e0d8f42a9153874c0dbb36f35eaabbb18a3e700fb6f2feb2eec7ceed3254ff1aec08752d09efad9d2c25aa6284471d1c6

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

Filesize
316KB

MD5
051cdb6ac8e168d178e35489b6da4c74

SHA1
38c171457d160f8a6f26baa668f5c302f6c29cd1

SHA256
6562585009f15155eea9a489e474cebc4dd2a01a26d846fdd1b93fdc24b0c269

SHA512
602ab9999f7164a2d1704f712d8a622d69148eefe9a380c30bc8b310eadedf846ce6ae7940317437d5da59404d141dc2d1e0c3f954ca4ac7ae3497e56fcb4e36

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

Filesize
193B

MD5
dbce6f3a727c5eefb47f56b0b49c2bf4

SHA1
4bd5df07386d836fd577e044ff1a5ca21054b495

SHA256
b5821e458a0627d340816128fe5ecc7ef43ec36eaaf8b7d65ac9f9a769b08537

SHA512
8d93ba2d2f3493c309adb13b894824af854e973fcd13053da440fb4a10b5e03c0b07fb0b4852aec65473951fdcc0ad9d6c78ffa30f4f9ab4152a3b16249c64c6

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

Filesize
3.3MB

MD5
e7b92529ea10176fe35ba73fa4edef74

SHA1
fc5b325d433cde797f6ad0d8b1305d6fb16d4e34

SHA256
b6d4ad0231941e0637485ac5833e0fdc75db35289b54e70f3858b70d36d04c80

SHA512
fb3a70e87772c1fb386ad8def6c7bdf325b8d525355d4386102649eb2d61f09ce101fce37ccc1f44d5878e604e2e426d96618e836367ab460cae01f627833517

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

Filesize
117KB

MD5
9dabf38bd7d2b88ef196ad531202d045

SHA1
8f0b8261a1eff925a39ca117099bc8b0317c941b

SHA256
f9a241a768397efb4b43924fbd32186fcb1c88716fff3085d3ddcdd322d3404f

SHA512
b8bb30396b77ffb6d23155b0259f084157bd0326b3960a4212cd67714a8e57c465226bbbdcd5a864ce9350d88c9d3e7328648a22d7613d4c7c8520cafbb50291

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

Filesize
784B

MD5
f3d2a26471c424e2f0b30422a07e3186

SHA1
9a2776fa80faf94050a1f9a7cafe0956294155ca

SHA256
388628a37645b4ed5a9a03f97d8c01f4f3409d2140e2d586e81863387032a67f

SHA512
d71dad5f5d365862d6c8d48ac2c935e2aa353e9c3d8ab5d4910e722087af8527630c721075fbbeb565688d9b70303a816b70a5a69d95e6f3c0716da3cd3a1a00

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

Filesize
755KB

MD5
0e37fbfa79d349d672456923ec5fbbe3

SHA1
4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

SHA256
8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

SHA512
2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

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

Filesize
106KB

MD5
67c53a770390e8c038060a1921c20da9

SHA1
49e63af91169c8ce7ef7de3d6a6fb9f8f739fa3a

SHA256
2dfdc169dfc27462adc98dde39306de8d0526dcf4577a1a486c2eef447300689

SHA512
201e07dbccd83480d6c4d8562e6d0a9e4c52ed12895f0b91d875c2bbcc50b3b1802e11e5e829c948be302bf98ebde7fb2a99476065d1709b3bdbcd5d59a1612d

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

Filesize
14KB

MD5
3aabcd7c81425b3b9327a2bf643251c6

SHA1
ea841199baa7307280fc9e4688ac75e5624f2181

SHA256
0cff893b1e7716d09fb74b7a0313b78a09f3f48c586d31fc5f830bd72ce8331f

SHA512
97605b07be34948541462000345f1e8f9a9134d139448d4f331cefeeca6dad51c025fcab09d182b86e5a4a8e2f9412b3745ec86b514b0523497c821cb6b8c592

Download Submit
C:\Users\Admin\AppData\Roaming\b.vue

Filesize
1.4MB

MD5
a6b24c45f4541f8b334fbf0c7a1f39be

SHA1
240df612d3d763b30adb07966dcf65ec00699fa0

SHA256
d187001647f475bd9f0f3142ae7883558ded929b3ad013d7df23665724d9d2fe

SHA512
ba9ac5c3ced198e46b3d8cae5a278ba83c7c8f55c00164c09e26b762ab8ed671b928d3baf7b47bdf4fa74c56dcdedca790b38f66f85e27d356681f9b3d82cdd8

Download Submit
C:\Users\Admin\AppData\Roaming\zz.exe

Filesize
296KB

MD5
58712aacf6b0f8149c066bda3a034fc3

SHA1
cf2da87d52a6b08a3b9502b1f6082b8b76ba4d32

SHA256
43907e54cf3d1258f695d1112759b5457576481072cc76a679b8477cfeb3db87

SHA512
f9df1dfdc3f706a5adfe2f38e91d8a3cb23dd46cd35b26c95bfe6ede7a731a536c4fa72304b86e699db56c669819fa4e132ab37da9561240ee29743edf5bcc7f

Download Submit
memory/3724-12-0x00007FFAA6710000-0x00007FFAA71D2000-memory.dmp

Filesize
10.8MB

Download
memory/3724-54-0x00007FFAA6710000-0x00007FFAA71D2000-memory.dmp

Filesize
10.8MB

Download
memory/3724-53-0x00007FFAA6713000-0x00007FFAA6715000-memory.dmp

Filesize
8KB

Download
memory/3724-0-0x00007FFAA6713000-0x00007FFAA6715000-memory.dmp

Filesize
8KB

Download
memory/3724-11-0x00007FFAA6710000-0x00007FFAA71D2000-memory.dmp

Filesize
10.8MB

Download
memory/3724-10-0x00007FFAA6710000-0x00007FFAA71D2000-memory.dmp

Filesize
10.8MB

Download
memory/3724-9-0x00000288D25E0000-0x00000288D2602000-memory.dmp

Filesize
136KB

Download
memory/3724-71-0x00007FFAA6710000-0x00007FFAA71D2000-memory.dmp

Filesize
10.8MB

Download
memory/3724-72-0x00007FFAA6710000-0x00007FFAA71D2000-memory.dmp

Filesize
10.8MB

Download
memory/3724-73-0x00000288D2F40000-0x00000288D3102000-memory.dmp

Filesize
1.8MB

Download
memory/3724-76-0x00007FFAA6710000-0x00007FFAA71D2000-memory.dmp

Filesize
10.8MB

Download