netsupport | 3c4b87be8450e3120b7ad2b11ff59850950beb39906dc1636b3ee7b6390f2086

Resubmissions

27/03/2025, 20:13

250327-yzgmnaxwav 8

27/03/2025, 19:56

250327-ynsksazjs7 10

Analysis

max time kernel
104s
max time network
164s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
27/03/2025, 19:56

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Chrome 134.0.6999.14115.js
Size

1.3MB
MD5

e276013cd57428820cccef3b09456fce
SHA1

fc4202cf424ce4084ea5cc98af0b0e164786beb9
SHA256

3c4b87be8450e3120b7ad2b11ff59850950beb39906dc1636b3ee7b6390f2086
SHA512

c3838300e48ccf8f45cfbb691f968d7fcad86fdc289f0a93e4caf0972563d682cac1c72253d5942439414152e5a3219fb77a5e496718d763f8a0a0f82c524f8c
SSDEEP

12288:wum1wz4FL5dM2f8f3ue1wz4FL5dM2f8f7:OCz4F9dM2f8frCz4F9dM2f8f7

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 4 IoCs

flow	pid	Process
3	5796	wscript.exe
45	5796	wscript.exe
47	5796	wscript.exe
49	5796	wscript.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-869607583-2483572573-2297019986-1000\Control Panel\International\Geo\Nation	wscript.exe

Deletes itself 1 IoCs

pid	Process
5796	wscript.exe

Executes dropped EXE 1 IoCs

pid	Process
4084	client32.exe

Loads dropped DLL 6 IoCs

pid	Process
4084	client32.exe
4084	client32.exe
4084	client32.exe
4084	client32.exe
4084	client32.exe
4084	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-1-5-21-869607583-2483572573-2297019986-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\w32api_deftype = "C:\\ProgramData\\77i08ci3\\client32.exe"	wscript.exe

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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

Script User-Agent 1 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	3	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeSecurityPrivilege	4084	client32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4084	client32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5796 wrote to memory of 4084	5796	wscript.exe	105
PID 5796 wrote to memory of 4084	5796	wscript.exe	105
PID 5796 wrote to memory of 4084	5796	wscript.exe	105

C:\Windows\system32\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\Chrome 134.0.6999.14115.js"
1⤵
- Blocklisted process makes network request
- Checks computer location settings
- Deletes itself
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:5796
- C:\ProgramData\77i08ci3\client32.exe
  "C:\ProgramData\77i08ci3\client32.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  PID:4084

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\ProgramData\77i08ci3\client32.exe
1⤵
PID:4532

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:1364

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

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

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\77i08ci3.zip

Filesize
3.7MB

MD5
746e8ad922e763cc5e8f01dca0212a11

SHA1
08cb0a733ff575481fd044bbf3eeeb79a642caea

SHA256
ab09b3a43da699819cdd63b612f02e22f33feba29deecdeef9893e98cf44c518

SHA512
c242d44d9e10841fa20428cd0d8203fef706a5258c8d68ccc74183f936ef16e641e426a1d52e6c8a34314760eb579a47287af16a598002f376a4fdeb6f70535e

Download Submit
C:\ProgramData\77i08ci3\HTCTL32.DLL

Filesize
306KB

MD5
3eed18b47412d3f91a394ae880b56ed2

SHA1
1b521a3ed4a577a33cce78eee627ae02445694ab

SHA256
13a17f2ad9288aac8941d895251604beb9524fa3c65c781197841ee15480a13f

SHA512
835f35af4fd241caa8b6a639626b8762db8525ccceb43afe8fffc24dffad76ca10852a5a8e9fc114bfbf7d1dc1950130a67037fc09b63a74374517a1f5448990

Download Submit
C:\ProgramData\77i08ci3\NSM.LIC

Filesize
262B

MD5
b9956282a0fed076ed083892e498ac69

SHA1
d14a665438385203283030a189ff6c5e7c4bf518

SHA256
fcc6afd664a8045bd61c398be3c37a97536a199a48d277e11977f93868ae1acc

SHA512
7daa09113c0e8a36c91cc6d657c65851a20dff6b60ac3d2f40c5737c12c1613c553955f84d131ba2139959973fef9fc616ca5e968cb16c25acf2d4739eed87eb

Download Submit
C:\ProgramData\77i08ci3\PCICAPI.dll

Filesize
44KB

MD5
9daa86d91a18131d5caf49d14fb8b6f2

SHA1
6b2f7ceb6157909e114a2b05a48a1a2606b5caf1

SHA256
1716640cce74322f7ee3e3e02b75cd53b91686f66e389d606dab01bd9f88c557

SHA512
9a98e0d9e2dda8aefa54bddb3c7b71501d638dff68863939de6caa117b0e7bf15e581a75419ef8a0da3f1c56a19f1b0f4c86d65f8581773ab88ff5764b9bb3aa

Download Submit
C:\ProgramData\77i08ci3\PCICL32.dll

Filesize
3.3MB

MD5
1274cca13cc5e37ca94d35e5b0673e89

SHA1
a8754c94f88273c304bc45a5afd61a383bb52117

SHA256
cd5510c8bc7ea60be77ad4aab502ee02d871bf4e917aeeb6921c20eebd9693dd

SHA512
52eafa31ee942dc92d0b8f52c12206f6abc1d5fae799b37b371e97c38ce66bd0693263de86b4880748ba1405054701288caf2cd00cd327edc164e1390cf9191c

Download Submit
C:\ProgramData\77i08ci3\client32.exe

Filesize
117KB

MD5
1c19c2e97c5e6b30de69ee684e6e5589

SHA1
5734ef7f9e4dba0639c98881e00f03eea35a62ee

SHA256
312a0e4db34a40cb95ba1fac8bf87deb45d0c5f048d38ac65eb060273b07df67

SHA512
ab7240b81be04f1bced47701a5791bbeedcba6037ee936327478c304aa1ce5ae75856ca7f568f909f847e27db2a6b9c08db7cc1057a18fab14a39a5854f15cba

Download Submit
C:\ProgramData\77i08ci3\client32.ini

Filesize
724B

MD5
f86798beead6be1e0e4b389e901f7640

SHA1
a222244bc199be44e1c041b6ee296a62fc2062bd

SHA256
3d725d512aec4e8708884334c7f180b7d071da8560ba49c2836fc6acb726afa6

SHA512
68945896e265d67d13cf2155bb58715b68a0ade556025d9ce063eef8034cd3a40614f366f139bdd953d2306cdd53e479b4c1ff05babc85c91b5a0ace1acc0332

Download Submit
C:\ProgramData\77i08ci3\msvcr100.dll

Filesize
755KB

MD5
0e37fbfa79d349d672456923ec5fbbe3

SHA1
4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

SHA256
8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

SHA512
2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

Download Submit
C:\ProgramData\77i08ci3\pcichek.dll

Filesize
27KB

MD5
e311935a26ee920d5b7176cfa469253c

SHA1
eda6c815a02c4c91c9aacd819dc06e32ececf8f0

SHA256
0038ab626624fa2df9f65dd5e310b1206a9cd4d8ab7e65fb091cc25f13ebd34e

SHA512
48164e8841cfc91f4cbf4d3291d4f359518d081d9079a7995378f970e4085b534f4bafc15b83f4824cc79b5a1e54457b879963589b1acbcfe727a03eb3dffd1c

Download Submit

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads