netsupport | 5dd4a822034679a3827712848e2c674e01626de2fbacd569b20c634efb45f7be

Analysis

max time kernel
93s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07-12-2024 02:42

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General

Target

5dd4a822034679a3827712848e2c674e01626de2fbacd569b20c634efb45f7be.exe
Size

1.7MB
MD5

f411f07437db9f29222e19af93f72906
SHA1

7ec2b1590b1f2670c1c04c1b9f2d1d021c589a84
SHA256

5dd4a822034679a3827712848e2c674e01626de2fbacd569b20c634efb45f7be
SHA512

4d63eb0f41c75f5cebbdededbd2a774499db5fe6de419b6b03be789fe8048beeb01bba753a519ecd50d9dcb13c95002b75898fbbf95a8b02e590eef14f1b4bab
SSDEEP

49152:zj+INBqrisJUKUgfRaAyL4swER2EpFC5K:lNkr1fRM9R2+

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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	1stovl.exe

Executes dropped EXE 2 IoCs

pid	Process
548	1stovl.exe
3712	client32.exe

Loads dropped DLL 6 IoCs

pid	Process
3712	client32.exe
3712	client32.exe
3712	client32.exe
3712	client32.exe
3712	client32.exe
3712	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\\\""	5dd4a822034679a3827712848e2c674e01626de2fbacd569b20c634efb45f7be.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	1stovl.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
4264	schtasks.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeSecurityPrivilege	3712	client32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3712	client32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1656 wrote to memory of 548	1656	5dd4a822034679a3827712848e2c674e01626de2fbacd569b20c634efb45f7be.exe	81
PID 1656 wrote to memory of 548	1656	5dd4a822034679a3827712848e2c674e01626de2fbacd569b20c634efb45f7be.exe	81
PID 1656 wrote to memory of 548	1656	5dd4a822034679a3827712848e2c674e01626de2fbacd569b20c634efb45f7be.exe	81
PID 548 wrote to memory of 4264	548	1stovl.exe	82
PID 548 wrote to memory of 4264	548	1stovl.exe	82
PID 548 wrote to memory of 4264	548	1stovl.exe	82
PID 548 wrote to memory of 3712	548	1stovl.exe	84
PID 548 wrote to memory of 3712	548	1stovl.exe	84
PID 548 wrote to memory of 3712	548	1stovl.exe	84

C:\Users\Admin\AppData\Local\Temp\5dd4a822034679a3827712848e2c674e01626de2fbacd569b20c634efb45f7be.exe
"C:\Users\Admin\AppData\Local\Temp\5dd4a822034679a3827712848e2c674e01626de2fbacd569b20c634efb45f7be.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1656
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1stovl.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\1stovl.exe
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:548
- - 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:4264
- - 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:3712

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
640B

MD5
6eeb15a71863a041860f4d235f262c43

SHA1
56d8f4bc78e9ba306ae76c78bf63199da85bb157

SHA256
8c4058275296cdac4be580f5b4b5edaad854202977544f1cba66afbf5e80ca59

SHA512
2b02a3b94c91d0d6f836dfe501d360492dd01d01adedbd231e8bbe1db6052fd418a0c41ad0d72de1835a3427ee24b50f95c97b4929db48214432cc284a5d9cd1

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\1stovl.exe

Filesize
4.9MB

MD5
84f3bcbd539e959c3770643d1f1712ff

SHA1
7941574a501b23b20eaa93902e374db56cce7d71

SHA256
6a34691f51c252d569ec7924d9cc06fbd94b466c78bdf4351d1aed10ce2c6065

SHA512
f9ffdad413115a18cb832dc8d36e943c7efeaa85711644d602025eecbac230d728d0ea1e1d41bd429e17827c1f6e19ef3f1e73ef999b194b1697f6ebd93ac3ff

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads