MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 a1f020b9708cb37c8e084e24dacc11f5bd42ef4ffdd25724ed9057dfb8879f54. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.
Database Entry
Arechclient2
Vendor detections: 14
| SHA256 hash: | a1f020b9708cb37c8e084e24dacc11f5bd42ef4ffdd25724ed9057dfb8879f54 |
|---|---|
| SHA3-384 hash: | 98cf1830a46d3aaa1a04985030d4194b39d93f0dc1aff1b42b16134de4f7b36f487d0a793705a61a900b9cf3d5122301 |
| SHA1 hash: | 5e64db6fcc0ac6a6f4ebe81f7e80d3f6af84990e |
| MD5 hash: | 0b3773bbe0c7168971d75f0b067cd67a |
| humanhash: | xray-california-alaska-alabama |
| File name: | Broker-Carrier Agreement.vbs |
| Download: | download sample |
| Signature | Arechclient2 |
| File size: | 31'305 bytes |
| First seen: | 2026-11-05 01:33:42 UTC |
| Last seen: | Never |
| File type: |  vbs |
| MIME type: | text/plain |
| ssdeep | 384:6GN4dRUHswIx8nn3mdoQ3g3rFNLuCB24VHINohtylW6IqQjA/6CGgs1JXEiRvFKI:fIx83gozDZIkt0IqwX1GsKul4VY1f |
| TLSH | T176E2D86154F7F62403B2DE684F0B8812FA21573B81987B5E7B6EC06216385CD9CAD4BF |
| Magika | vba |
| Reporter |  aachum |
| Tags: | 31-77-168-93 85-120-253-85 Arechclient2 NetSupport SectopRAT vbs |
iamaachum
CastleLoader IOCs:aafesorder.com
thelkfklef.com
NetSupport C2: 85.120.253.85
Arechclient2/SectopRAT C2: 31.77.168.93
Intelligence
File Origin
# of uploads :
1
# of downloads :
133
Origin country :
PTVendor Threat Intelligence
No detections
Detection:
n/a
Verdict:
Malicious
Score:
90.2%
Tags:
virus spawn dldr
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Creating a file
Creating a process with a hidden window
Moving a file to the %temp% subdirectory
Deleting a recently created file
Launching a process
Creating synchronization primitives
Searching for synchronization primitives
Creating a process from a recently created file
Creating a file in the %temp% directory
Creating a file in the %temp% subdirectories
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
anti-debug downloader encrypted evasive houdini installer-heuristic masquerade obfuscated reconnaissance
Verdict:
Malicious
File Type:
vbs
First seen:
2026-11-02T10:41:00Z UTC
Last seen:
2026-11-05T05:14:00Z UTC
Hits:
~10
Result
Threat name:
NetSupport RAT, Arechclient2
Detection:
malicious
Classification:
rans.troj.expl.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
Benign windows process drops PE files
Found direct / indirect Syscall (likely to bypass EDR)
Found hidden mapped module (file has been removed from disk)
Found malware configuration
Found pyInstaller with non standard icon
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Potential malicious VBS script found (has network functionality)
Sigma detected: Script Initiated Connection to Non-Local Network
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Tries to detect sleep reduction / modifications
Unusual module load detection (module proxying)
VBScript performs obfuscated calls to suspicious functions
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes many files with high entropy
WScript reads language and country specific registry keys (likely country aware script)
Yara detected Arechclient2
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Score:
95%
Verdict:
Malware
File Type:
SCRIPT
Verdict:
Malware
YARA:
1 match(es)
Tags:
ADODB.Stream COM Behavior Trace DeObfuscated MSXML2.DOMDocument.6.0 Obfuscated Scripting.FileSystemObject SOS: 0.79 T1027 T1059.005 VBScript WScript.Shell
Threat name:
Script.Trojan.Houdini
Status:
Malicious
First seen:
2026-10-30 19:30:41 UTC
File Type:
Text (VBS)
AV detection:
9 of 38 (23.68%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
sectoprat
Score:
10/10
Tags:
family:netsupport family:sectoprat adware defense_evasion discovery execution privilege_escalation rat spyware trojan upx
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
Modifies registry class
Script User-Agent
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Browser Information Discovery
Enumerates physical storage devices
Reads the TCP/IP host and domain name from the registry
System Location Discovery: System Language Discovery
System Time Discovery
Drops file in Windows directory
Executes a VBScript file via the Windows Script Host.
Suspicious use of SetThreadContext
UPX packed file
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Badlisted process makes network request
Downloads MZ/PE file
Detects SectopRAT aka Arechclient2
Family: NetSupport
Family: SectopRAT
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.68
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
exe Delivery method
Distributed via web download
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