netsupport | 45ff625f17a1e9ad65dd94c376034148d6d8eee8a41b1209f566a907f5d6d6c7

General

Target
c82f6b6c65e9617b6af32028c9d9b793.exe
Size 2.2MB
Sample240314-klrntafb5v
SHA256 45ff625f17a1e9ad65dd94c376034148d6d8eee8a41b1209f566a907f5d6d6c7
MD5 c82f6b6c65e9617b6af32028c9d9b793
SHA1 4a0d251ed5db7ec8bf4f5334d11d0c35549eb4a9
SHA512 667d8aba53d8e2a06739abdb6a5835e542c0affd4d87bf5e6b6d11ccbbc715aaf84caaee06635e2af78db2db0ce6e58dabacd7fb0943dc257d5b0352da99a525
SSDEEP 49152:reQeN/IirV+a2YCSdZeCP6OYKphcmX90ur7SnkGPgvNLc+:reh/DAa2VcbSOYUqmWurEkGPURc+
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

netsupport persistence rat

Malware Config

Signatures

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

Registers new Windows logon scripts automatically executed at logon. 1 TTPs 1 IoCs

persistence

Logon Script (Windows)

T1037.001

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Environment\UserInitMprLogonScript = "C:\\ProgramData\\DriverStore\\ntcapapi.exe"	reg.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-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation	c82f6b6c65e9617b6af32028c9d9b793.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\LOGS\DPX\setuperr.log	expand.exe
File opened for modification	C:\Windows\LOGS\DPX\setupact.log	expand.exe

Executes dropped EXE 1 IoCs

pid	Process
816	ntcapapi.exe

Loads dropped DLL 4 IoCs

pid	Process
816	ntcapapi.exe
816	ntcapapi.exe
816	ntcapapi.exe
816	ntcapapi.exe

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

System Information Discovery
T1082

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Nd9064be	ntcapapi.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Nd9064be\expiredver = "1200"	ntcapapi.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 736 wrote to memory of 3300	736	c82f6b6c65e9617b6af32028c9d9b793.exe	91
PID 736 wrote to memory of 3300	736	c82f6b6c65e9617b6af32028c9d9b793.exe	91
PID 736 wrote to memory of 3300	736	c82f6b6c65e9617b6af32028c9d9b793.exe	91
PID 3300 wrote to memory of 1788	3300	cmd.exe	94
PID 3300 wrote to memory of 1788	3300	cmd.exe	94
PID 3300 wrote to memory of 1788	3300	cmd.exe	94
PID 3300 wrote to memory of 416	3300	cmd.exe	95
PID 3300 wrote to memory of 416	3300	cmd.exe	95
PID 3300 wrote to memory of 416	3300	cmd.exe	95
PID 3300 wrote to memory of 816	3300	cmd.exe	96
PID 3300 wrote to memory of 816	3300	cmd.exe	96
PID 3300 wrote to memory of 816	3300	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\c82f6b6c65e9617b6af32028c9d9b793.exe
"C:\Users\Admin\AppData\Local\Temp\c82f6b6c65e9617b6af32028c9d9b793.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:736
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\7z74A482E0\content.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3300
- - C:\Windows\SysWOW64\expand.exe
    expand verse.cab -F:* C:\ProgramData
    3⤵
    - Drops file in Windows directory
    PID:1788
- - C:\Windows\SysWOW64\reg.exe
    reg add "HKEY_CURRENT_USER\Environment" /v UserInitMprLogonScript /t REG_EXPAND_SZ /d "C:\ProgramData\DriverStore\ntcapapi.exe" /f
    3⤵
    - Registers new Windows logon scripts automatically executed at logon.
    PID:416
- - C:\ProgramData\DriverStore\ntcapapi.exe
    C:\ProgramData\DriverStore\ntcapapi.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Modifies registry class
    PID:816

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Initialization Scripts

1

T1037

Logon Script (Windows)

1

T1037.001

Privilege Escalation

Boot or Logon Initialization Scripts

1

T1037

Logon Script (Windows)

1

T1037.001

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

NSM.LIC

Path C:\ProgramData\DriverStore\NSM.LIC
Size 194B
SHA256 3a882df0e4467092870bb1828a4e533066910ae34d84cf45c904e9d18610d160
MD5 8dad217b9bcccae94e3051c580302b5d
SHA1 625a9c54c406818058f7cd1605976fa46cd0ad50
SHA512 6911c472a0ff30d044109dc5590c22cc53cf02696c0cb98da10ed7ed4a96acb5d81f3c1216997315c785e9eaf19e875e4871c81aac37af74f8f49c79462a93e0
MD5 SHA1 SHA512

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PCICL32.dll

Path C:\ProgramData\DriverStore\PCICL32.dll
Size 3.6MB
SHA256 38684adb2183bf320eb308a96cdbde8d1d56740166c3e2596161f42a40fa32d5
MD5 d3d39180e85700f72aaae25e40c125ff
SHA1 f3404ef6322f5c6e7862b507d05b8f4b7f1c7d15
SHA512 471ac150e93a182d135e5483d6b1492f08a49f5ccab420732b87210f2188be1577ceaaee4ce162a7acceff5c17cdd08dc51b1904228275f6bbde18022ec79d2f
SSDEEP 49152:0KJKmPEYIPqxYdoF4OSvxmX3+m7OTqupa7HclSpTAyFMJa:0KJ/zIPq7F4fmXO8u6kS+y/
MD5 SHA1 SHA512 SSDEEP

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msvcr100.dll

Path C:\ProgramData\DriverStore\msvcr100.dll
Size 755KB
SHA256 8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18
MD5 0e37fbfa79d349d672456923ec5fbbe3
SHA1 4e880fc7625ccf8d9ca799d5b94ce2b1e7597335
SHA512 2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630
SSDEEP 12288:nMmCy3nAgPAxN9ueqix/HEmxsvGrif8ZSy+rdQw2QRAtd74/vmYK6H3BVoe3z:MmCy3KxW3ixPEmxsvGrm8Z6r+JQPzV7z
MD5 SHA1 SHA512 SSDEEP

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ntcapapi.exe

Path C:\ProgramData\DriverStore\ntcapapi.exe
Size 103KB
SHA256 4d24b359176389301c14a92607b5c26b8490c41e7e3a2abbc87510d1376f4a87
MD5 c60ac6a6e6e582ab0ecb1fdbd607705b
SHA1 ba9de479beb82fd97bbdfbc04ef22e08224724ba
SHA512 f91b964f8b9a0e7445fc260b8c75c831e7ce462701a64a39989304468c9c5ab5d1e8bfe376940484f824b399aef903bf51c679fcf45208426fff7e4e518482ca
SSDEEP 384:qqDV5+6j6Qa86Fkv2Wr120hZgoTSPT+TWit:qOVZl6FhWr80/goTwiTWit
MD5 SHA1 SHA512 SSDEEP

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pcicapi.dll

Path C:\ProgramData\DriverStore\pcicapi.dll
Size 32KB
SHA256 2d6c6200508c0797e6542b195c999f3485c4ef76551aa3c65016587788ba1703
MD5 34dfb87e4200d852d1fb45dc48f93cfc
SHA1 35b4e73fb7c8d4c3fefb90b7e7dc19f3e653c641
SHA512 f5bb4e700322cbaa5069244812a9b6ce6899ce15b4fd6384a3e8be421e409e4526b2f67fe210394cd47c4685861faf760eff9af77209100b82b2e0655581c9b2
SSDEEP 768:JFvNhAyi5hHA448qZkSn+EgT8ToDXTVi0:JCyoHA448qSSzgIQb
MD5 SHA1 SHA512 SSDEEP

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pcichek.dll

Path C:\ProgramData\DriverStore\pcichek.dll
Size 18KB
SHA256 956b9fa960f913cce3137089c601f3c64cc24c54614b02bba62abb9610a985dd
MD5 104b30fef04433a2d2fd1d5f99f179fe
SHA1 ecb08e224a2f2772d1e53675bedc4b2c50485a41
SHA512 5efcaa8c58813c3a0a6026cd7f3b34ad4fb043fd2d458db2e914429be2b819f1ac74e2d35e4439601cf0cb50fcdcafdcf868da328eaaeec15b0a4a6b8b2c218f
SSDEEP 192:dogL7bo2t6n76RRHirmH/L7jtd3hfwjKd3hfwB7bjuZRvI:dogL7bo2YrmRTAKT0iTI
MD5 SHA1 SHA512 SSDEEP

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content.bat

Path C:\Users\Admin\AppData\Local\Temp\7z74A482E0\content.bat
Size 242B
SHA256 cfd9c73c9e8a0a4ad2f5b8c6571f11ba37d12353d7e647b95115f31264c19181
MD5 de1b616650b66222e492b0bbfaebbf4a
SHA1 cacd06fcc25440d15c7e7402db2f058e4470d237
SHA512 8e9e2508b8a462503d02e6baf3979cc218d2e6ba1a56b2fd9a899c91f42ae9e695630e9dc25e34c7fe8aa459a867c44c8c99f861ff1f3af4541972a70d46d1f3
MD5 SHA1 SHA512

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verse.cab

Path C:\Users\Admin\AppData\Local\Temp\7z74A482E0\verse.cab
Size 2.1MB
SHA256 4f1f999e247d15ce68ee107a6efe173ec3886ef2841cf0d0fb483d48af81a44c
MD5 afcecbe88900f2f2d4a097275a75d2bf
SHA1 5367eff6d2883a56020a4b7d63e25a699840ecc8
SHA512 f6ed2b5e2cbeb486e5b453194fd788c10852302858e18d10ca257d3fec0c59128b4cc2ea92a2fc53d51dd52e3c2482f48c7a97559deffceaff2e897b4a347a0a
SSDEEP 49152:+D2/NkYKFvVYVedgWCPLbWWohsXwpP2rlS7oMPXS1LM+8:9/5CvV046jbW3aXdr+oMPiZM+8
MD5 SHA1 SHA512 SSDEEP

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads