netsupport | 35521c71fb7dcd061744b77acaac772e88c80045fed4fc7d47f5f8de91ff5602

Analysis

max time kernel
94s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
06-12-2024 15:05

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General

Target

tripmaintenancepro/tripmaintenancepro.exe
Size

1.7MB
MD5

7f91ddd975877939aa1ac1dd56b71d98
SHA1

a7e9616647b0cbd94d7baba3a63e59006d4332e3
SHA256

82d01b3795167ccb4f5dd684d067039a3ccb9ad5437990bd79c63e57a6c7cf31
SHA512

a0fe2f5b3eb7048d5cb3a8da5fd573ea99d1aa17dc430f1e77e3c93f7424f041f155a13bac5ab78c74b6b68be02d217c3acee6e8c4fc722f03d4d4b1d4491d52
SSDEEP

49152:ojFr/QWeljgmLNiZGXTNPuUSXcVB5K3Lb8:43eljzUYXZPscVW3

Score

10^/10

netsupport discovery persistence rat

Malware Config

Signatures

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

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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	2ndovl.exe

Executes dropped EXE 2 IoCs

pid	Process
4480	2ndovl.exe
4280	client32.exe

Loads dropped DLL 6 IoCs

pid	Process
4280	client32.exe
4280	client32.exe
4280	client32.exe
4280	client32.exe
4280	client32.exe
4280	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\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	tripmaintenancepro.exe

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 3 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	2ndovl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	client32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
4648	schtasks.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeSecurityPrivilege	4280	client32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4280	client32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 5064 wrote to memory of 4480	5064	tripmaintenancepro.exe	83
PID 5064 wrote to memory of 4480	5064	tripmaintenancepro.exe	83
PID 5064 wrote to memory of 4480	5064	tripmaintenancepro.exe	83
PID 4480 wrote to memory of 4648	4480	2ndovl.exe	84
PID 4480 wrote to memory of 4648	4480	2ndovl.exe	84
PID 4480 wrote to memory of 4648	4480	2ndovl.exe	84
PID 4480 wrote to memory of 4280	4480	2ndovl.exe	85
PID 4480 wrote to memory of 4280	4480	2ndovl.exe	85
PID 4480 wrote to memory of 4280	4480	2ndovl.exe	85

C:\Users\Admin\AppData\Local\Temp\tripmaintenancepro\tripmaintenancepro.exe
"C:\Users\Admin\AppData\Local\Temp\tripmaintenancepro\tripmaintenancepro.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:5064
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2ndovl.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2ndovl.exe
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4480
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\system32\schtasks.exe" /create /sc ONLOGON /tn "DNScache" /tr "C:\Users\Admin\AppData\Local\DNScache\client32.exe" /RL HIGHEST
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4648
- - C:\Users\Admin\AppData\Local\DNScache\client32.exe
    C:\Users\Admin\AppData\Local\DNScache\client32.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of FindShellTrayWindow
    PID:4280

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

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

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Downloads

C:\Users\Admin\AppData\Local\DNScache\HTCTL32.DLL

Filesize
320KB

MD5
2d3b207c8a48148296156e5725426c7f

SHA1
ad464eb7cf5c19c8a443ab5b590440b32dbc618f

SHA256
edfe2b923bfb5d1088de1611401f5c35ece91581e71503a5631647ac51f7d796

SHA512
55c791705993b83c9b26a8dbd545d7e149c42ee358ecece638128ee271e85b4fdbfd6fbae61d13533bf39ae752144e2cc2c5edcda955f18c37a785084db0860c

Download Submit
C:\Users\Admin\AppData\Local\DNScache\MSVCR100.dll

Filesize
755KB

MD5
0e37fbfa79d349d672456923ec5fbbe3

SHA1
4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

SHA256
8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

SHA512
2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

Download Submit
C:\Users\Admin\AppData\Local\DNScache\NSM.LIC

Filesize
259B

MD5
1dc87146379e5e3f85fd23b25889ae2a

SHA1
b750c56c757ad430c9421803649acf9acd15a860

SHA256
f7d80e323e7d0ed1e3ddd9b5df08af23dcecb47a3e289314134d4b76b3adcaf2

SHA512
7861abe50eefdf4452e4baacc4b788895610196b387b70ddeab7bc70735391ed0a015f47eada94a368b82f8e5cedb5a2096e624f4a881ff067937ad159e3562c

Download Submit
C:\Users\Admin\AppData\Local\DNScache\PCICHEK.DLL

Filesize
18KB

MD5
a0b9388c5f18e27266a31f8c5765b263

SHA1
906f7e94f841d464d4da144f7c858fa2160e36db

SHA256
313117e723dda6ea3911faacd23f4405003fb651c73de8deff10b9eb5b4a058a

SHA512
6051a0b22af135b4433474dc7c6f53fb1c06844d0a30ed596a3c6c80644df511b023e140c4878867fa2578c79695fac2eb303aea87c0ecfc15a4ad264bd0b3cd

Download Submit
C:\Users\Admin\AppData\Local\DNScache\PCICL32.dll

Filesize
3.5MB

MD5
ad51946b1659ed61b76ff4e599e36683

SHA1
dfe2439424886e8acf9fa3ffde6caaf7bfdd583e

SHA256
07a191254362664b3993479a277199f7ea5ee723b6c25803914eedb50250acf4

SHA512
6c30e7793f69508f6d9aa6edcec6930ba361628ef597e32c218e15d80586f5a86d89fcbee63a35eab7b1e0ae26277512f4c1a03df7912f9b7ff9a9a858cf3962

Download Submit
C:\Users\Admin\AppData\Local\DNScache\client32.exe

Filesize
54KB

MD5
9497aece91e1ccc495ca26ae284600b9

SHA1
a005d8ce0c1ea8901c1b4ea86c40f4925bd2c6da

SHA256
1b63f83f06dbd9125a6983a36e0dbd64026bb4f535e97c5df67c1563d91eff89

SHA512
4c892e5029a707bcf73b85ac110d8078cb273632b68637e9b296a7474ab0202320ff24cf6206de04af08abf087654b0d80cbecfae824c06616c47ce93f0929c9

Download Submit
C:\Users\Admin\AppData\Local\DNScache\client32.ini

Filesize
637B

MD5
5274a126ee2f7f926fb8f9ac53a57abd

SHA1
10eeb6dbd99013c7969c27d09104fcb0ffbd97da

SHA256
b3f198f6976b2a97a0aafd4127bf1a274c3ca388226de13da37f3b5976b439ca

SHA512
fcf0b3c57bd2db6544274cb622c4855e915c74705c311e3f94749a401238ebf525fb4c9607528dedb9944b8c682a3da2e4bcdd9a0e6d7367241430e54ab290db

Download Submit
C:\Users\Admin\AppData\Local\DNScache\pcicapi.dll

Filesize
32KB

MD5
dcde2248d19c778a41aa165866dd52d0

SHA1
7ec84be84fe23f0b0093b647538737e1f19ebb03

SHA256
9074fd40ea6a0caa892e6361a6a4e834c2e51e6e98d1ffcda7a9a537594a6917

SHA512
c5d170d420f1aeb9bcd606a282af6e8da04ae45c83d07faaacb73ff2e27f4188b09446ce508620124f6d9b447a40a23620cfb39b79f02b04bb9e513866352166

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\2ndovl.exe

Filesize
4.9MB

MD5
ecfdde187846c27fef59c61d42d474b3

SHA1
25d35ff7f5c38626bd77b5cd9fed849fd1186499

SHA256
d5f5204efc969b0a9a132413c637f09bce02cff7ea932c504d418e80265158f9

SHA512
08ac6368aa2857c6201b6812d4adffb7e690f16750bc7b39b3116076fec10aa716c4a868afe9310984ad94f71e65df91fe813ed415f0deee562ceeaf4f800f5e

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads