MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 ab299c3cf0dddff7283a2a96bd3f4610add08177793a2cb047255a5da5731d1d. 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: 13
| SHA256 hash: | ab299c3cf0dddff7283a2a96bd3f4610add08177793a2cb047255a5da5731d1d |
|---|---|
| SHA3-384 hash: | af9545fb50ff144c2f589fe5e7c9a678ef38d3d9ab4f2eefdbf5d8e50c754fdfe5a0d27bbdb9cffefb9714e493eb82b4 |
| SHA1 hash: | d1337fe6400d707543f4c055c00aeb6e6df5c48b |
| MD5 hash: | 63c0064aad0fc46048061d37a3304730 |
| humanhash: | coffee-lion-glucose-princess |
| File name: | Broker Carrier Agreement.exe |
| Download: | download sample |
| Signature | Arechclient2 |
| File size: | 32'190'088 bytes |
| First seen: | 2026-10-20 17:41:49 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/vnd.microsoft.portable-executable |
| imphash | 46ce5c12b293febbeb513b196aa7f843 (48 x GuLoader, 21 x RemcosRAT, 15 x AgentTesla) |
| ssdeep | 786432:dfcdGhoDHd5Zy42qNG+c20xj5PUimV4389fmb3a+69Uo6c:dfbc95ZT2DBxp662+bK+qUs |
| TLSH | T14F6733074E4DEC92F21095704B422ADA96EACE3317ACF9DDB55B3284FEF9E8111C065E |
| TrID | 27.0% (.EXE) Win64 Executable (generic) (6522/11/2) 20.8% (.EXE) Win16 NE executable (generic) (5038/12/1) 18.6% (.EXE) Win32 Executable (generic) (4504/4/1) 8.5% (.ICL) Windows Icons Library (generic) (2059/9) 8.4% (.EXE) OS/2 Executable (generic) (2029/13) |
| Magika | pebin |
| dhash icon | 490c15712f2b2b33 (1 x Arechclient2) |
| Reporter |  ffforward |
| Tags: | Arechclient2 CastleBot CastleLoader CountLoader exe signed |
Code Signing Certificate
| Organisation: | AQUAMARINE ALLIANCE s.r.o. |
|---|---|
| Issuer: | SSL.com EV Code Signing Intermediate CA RSA R3 |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2026-02-19T14:13:08Z |
| Valid to: | 2027-02-19T12:39:09Z |
| Serial number: | 470613f0d1d9f36168dacdf8ae8c4d24 |
| Intelligence: | 2 malware samples on MalwareBazaar are signed with this code signing certificate |
| Cert Graveyard Blocklist: | This certificate is on the Cert Graveyard blocklist |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | da7520b2c6ba538e7f9a592de727f73bfe30297c7b63e58b2841f68212a434f5 |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
1
# of downloads :
177
Origin country :
SEVendor Threat Intelligence
Malware configuration found for:
NSIS
Details
Malware family:
netsupport
ID:
1
File name:
exe
Verdict:
Malicious activity
Analysis date:
2026-10-20 17:51:11 UTC
Tags:
doc-url python arch-doc loader castleloader auto-startup arch-exec auto netsupport rmm-tool rat susp-powershell arechclient2 stealer backdoor api-base64
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Clean
Score:
82.2%
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a file in the %temp% directory
Creating a file
Connection attempt
Sending a custom TCP request
DNS request
Moving a recently created file
Creating a process from a recently created file
Deleting a recently created file
Loading a suspicious library
Launching a service
Sending an HTTP GET request
Creating a window
Creating synchronization primitives
Unauthorized injection to a recently created process
Verdict:
Suspicious
Labled as:
TR/Malware
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-10-19T18:12:00Z UTC
Last seen:
2026-10-20T09:55:00Z UTC
Hits:
~10
Score:
97%
Verdict:
Malware
File Type:
PE
Gathering data
Threat name:
Win32.Trojan.Sonbokli
Status:
Malicious
First seen:
2026-10-19 22:59:18 UTC
File Type:
PE (Exe)
Extracted files:
1470
AV detection:
10 of 36 (27.78%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
sectoprat
Score:
10/10
Tags:
family:netsupport family:sectoprat discovery persistence privilege_escalation rat trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Reads the TCP/IP host and domain name from the registry
System Location Discovery: System Language Discovery
Executes dropped EXE
Loads dropped DLL
Checks computer location settings
Creates a file in the Startup directory
Detects SectopRAT aka Arechclient2
Family: NetSupport
Family: SectopRAT
Malware family:
NetSupport
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
YARA Signatures
MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.
| Rule name: | Detect_NSIS_Nullsoft_Installer |
|---|---|
| Author: | Obscurity Labs LLC |
| Description: | Detects NSIS installers by .ndata section + NSIS header string |
| Rule name: | JP_Lure_Content_Hunt |
|---|---|
| Author: | sumeshi |
| Description: | Hunts for files containing Japanese kana text or common Japanese lure terminology |
| Rule name: | NSIS |
|---|---|
| Author: | kevoreilly |
| Description: | NSIS Integrity Check function |
| Rule name: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | Win_Clipboard_Clipper_Thengavar |
|---|---|
| Author: | Thengavar |
| Description: | Detects malware manipulating the Windows clipboard for clipping or crypto stealing attacks |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Delivery method
Distributed via web download
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