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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4351a7e899a2d3d2b8fa465b2567857a03ecc48aef9b9a67bc8bbd8f67303ec0. 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: 15


Intelligence 15 IOCs YARA 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4351a7e899a2d3d2b8fa465b2567857a03ecc48aef9b9a67bc8bbd8f67303ec0
SHA3-384 hash: daeb12362d0714bede14f17a9bcbf3239153600538f9793de84b4ce4694a005786e63b59fc1820a5390bdf1524d8ec8f
SHA1 hash: c3873a5e9a04ae7b511cb5c7bdef8f93f540f812
MD5 hash: 02c5e1133d85b375e4bf3469b7e8f1c4
humanhash: island-twelve-cola-paris
File name:newcrytest.msi
Download: download sample
Signature Arechclient2
Create hunting rule
File size:1'531'904 bytes
First seen:2026-11-11 03:42:59 UTC
Last seen:Never
File type:Microsoft Software Installer (MSI) msi
MIME type:application/x-msi
ssdeep 24576:bW8xfK4D3Go8wy7w+PTG0XeJG5dl7vByt3pklCFammpeWDFX4QBwO2g:bfZbS8+PTG0p5dl7vByVpYCNmpeWe8P2
TLSH T12A65332032E4612CCD2A95B649B39352B55EAD9C1C0F250336D0B39B3FB51E52B39BED
TrID 86.8% (.MSI) Microsoft Windows Installer (454500/1/170)
11.6% (.MST) Windows SDK Setup Transform script (61000/1/5)
1.5% (.) Generic OLE2 / Multistream Compound (8000/1)
Magika msi
Reporter aachum
Tags:65-108-133-85 Arechclient2 AsgardProtector dropped-by-ACRStealer msi SectopRAT


Avatar
iamaachum
https://demo.ccgador8hnace.net/newcrytest.msi

SectopRAT/Arechclient2 C2: 65.108.133.85

Intelligence

File Origin
# of uploads :
1
# of downloads :
85
Origin country :
PT PT
Vendor Threat Intelligence
Malware configuration found for:
MSI
Details
Link:
https://research.acce.ciphertechsolutions.com/results/009e74b1-bc6f-4f4e-ad9e-6a259da3870e/
Detection:
Arechclient2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/99354/
Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6af3e44fbeffd05f052afe4c
Tags:
injection injected autorun spawn
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating synchronization primitives
Searching for synchronization primitives
Creating a file in the Windows subdirectories
Creating a file
Running batch commands
Creating a process from a recently created file
Creating a process with a hidden window
Connection attempt
Sending a custom TCP request
DNS request
Enabling autorun by creating a file
Enabling autorun
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
anti-debug CAB expired-cert installer installer obfuscated packed
Link:
https://www.filescan.io/uploads/6af3e450bd9826fe57c932f2/reports/557a3e47-a4d3-466f-b8b7-5777bb97b662/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/4351a7e899a2d3d2b8fa465b2567857a03ecc48aef9b9a67bc8bbd8f67303ec0
Result
Threat name:
n/a
Detection:
malicious
Classification:
spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/2003847
Signature
Antivirus detection for dropped file
Creates a thread in another existing process (thread injection)
Creates an undocumented autostart registry key
Drops script or batch files to the startup folder
Drops VBS files to the startup folder
Injects a PE file into a foreign processes
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Drops script at startup location
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Unusual module load detection (module proxying)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
WScript reads language and country specific registry keys (likely country aware script)
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 2003847 Sample: newcrytest.msi Startdate: 11/11/2026 Architecture: WINDOWS Score: 100 60 k8s-ingressn-bscmainn-92244380d0-811109128.us-east-1.elb.amazonaws.com 2->60 62 bsc-dataseed4.binance.org 2->62 64 6 other IPs or domains 2->64 76 Suricata IDS alerts for network traffic 2->76 78 Antivirus detection for dropped file 2->78 80 Sigma detected: Drops script at startup location 2->80 82 2 other signatures 2->82 10 msiexec.exe 104 61 2->10         started        13 wscript.exe 1 2->13         started        16 cmd.exe 1 2->16         started        18 2 other processes 2->18 signatures3 process4 file5 50 C:\Users\user\AppData\...\splashscreen.dll, PE32+ 10->50 dropped 52 C:\Users\user\AppData\...\management.dll, PE32+ 10->52 dropped 54 C:\Users\user\AppData\Local\...\jstack.exe, PE32+ 10->54 dropped 56 10 other malicious files 10->56 dropped 20 cmd.exe 1 10->20         started        96 Windows Scripting host queries suspicious COM object (likely to drop second stage) 13->96 98 WScript reads language and country specific registry keys (likely country aware script) 13->98 22 AutoIt3_x64.exe 13->22         started        25 AutoIt3_x64.exe 16->25         started        27 conhost.exe 16->27         started        29 AutoIt3_x64.exe 18->29         started        signatures6 process7 signatures8 31 AutoIt3_x64.exe 4 20->31         started        35 conhost.exe 20->35         started        84 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 25->84 86 Installs a global keyboard hook 27->86 process9 file10 58 C:\ProgramData\TokenRuntime\AutoIt3_x64.exe, PE32+ 31->58 dropped 72 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 31->72 37 AutoIt3_x64.exe 15 11 31->37         started        74 Installs a global keyboard hook 35->74 signatures11 process12 dnsIp13 66 k8s-ingressn-bscmainn-92244380d0-811109128.us-east-1.elb.amazonaws.com 34.230.185.138 AMAZON-AES-AmazoncomIncUS United States 37->66 68 65.108.133.85, 443, 49699, 49712 HETZNER-ASDE Finland 37->68 70 ae7280d68d883734b.awsglobalaccelerator.com 99.83.204.86 AMAZON-02-AmazoncomIncUS United States 37->70 44 C:\Users\user\AppData\...\TokenRuntime.vbs, ASCII 37->44 dropped 46 C:\Users\user\AppData\...\TokenRuntime.hta, Microsoft 37->46 dropped 48 C:\Users\user\AppData\...\TokenRuntime.bat, DOS 37->48 dropped 88 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 37->88 90 Creates an undocumented autostart registry key 37->90 92 Drops script or batch files to the startup folder 37->92 94 8 other signatures 37->94 42 chrome.exe 37->42         started        file14 signatures15 process16
Score:
52%
Verdict:
Susipicious
File Type:
ARCHIVE
Link:
https://malprob.io/report/4351a7e899a2d3d2b8fa465b2567857a03ecc48aef9b9a67bc8bbd8f67303ec0
Verdict:
inconclusive
YARA:
4 match(es)
Tags:
.Net AutoIt CAB:COMPRESSION:MSZIP Executable Managed .NET Office Document PDB Path PE (Portable Executable) PE File Layout SOS: 0.27
Link:
https://app.malva.re/file/02c5e1133d85b375e4bf3469b7e8f1c4
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4351a7e899a2d3d2b8fa465b2567857a03ecc48aef9b9a67bc8bbd8f67303ec0/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ini2p2ezulj5foh2iznskz4fpib6zrek56nzuz54ro6y6zzqh3aa._file
Verdict:
malicious
Label(s):
SectopRAT
Create hunting rule
Link:
https://reports.threatray.com/bff86b93-987d-43b0-914d-9923d1c2f672
Result
Malware family:
sectoprat
Create hunting rule
Score:
  10/10
Tags:
family:sectoprat discovery execution persistence privilege_escalation ransomware rat trojan
Link:
https://tria.ge/reports/261111-d91hasdw6l/
Behaviour
Checks SCSI registry key(s)
NTFS ADS
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Volume Shadow Copy service COM API
Event Triggered Execution: Installer Packages
Executes a command shell one-liner
Reads the TCP/IP host and domain name from the registry
Drops file in Windows directory
Enumerates connected drives
Creates a file in the Startup directory
Executes dropped EXE
Registers new Windows logon scripts automatically executed at logon.
Detects SectopRAT aka Arechclient2
Family: SectopRAT
Malware Family:
n/a
Verdict:
Malicious
Tags:
loader injector stealer evasion
YARA:
n/a
Link:
https://app.threat.zone/submission/d78d3cdc-f526-4c2d-95f1-a2cd38f3cdac
Malware Family:
alien
Create hunting rule
Malicious:
True
Tags:
msi usb-check
Link:
https://intel.virussign.com/intelligence/file/4351a7e899a2d3d2b8fa465b2567857a03ecc48aef9b9a67bc8bbd8f67303ec0
Malware family:
ArechClient2
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4351a7e899a2/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4351a7e899a2d3d2b8fa465b2567857a03ecc48aef9b9a67bc8bbd8f67303ec0

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:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:exploit_any_poppopret
Create hunting rule
Author:Jeff White [karttoon@gmail.com] @noottrak
Description:Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries.
Rule name:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:MALWARE_Win_Arechclient2
Create hunting rule
Author:ditekSHen
Description:Detects Arechclient2 RAT
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:SUSP_XORed_URL_In_EXE
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:SUSP_XORed_URL_in_EXE_RID2E46
Create hunting rule
Author:Florian Roth
Description:Detects an XORed URL in an executable
Reference:https://twitter.com/stvemillertime/status/1237035794973560834
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:telebot_framework
Create hunting rule
Author:vietdx.mb
Rule name:VECT_Ransomware
Create hunting rule
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.
Rule name:VIGIA_Arechclient2_b59b2bb0
Create hunting rule
Author:VIG-IA - Cognitive Threat Intelligence System for Smart Territories and Tourism Sector
Description:0ba15495-9325-4e88-9683-0583a3c2e273 - file 0551872127101f6f79321aaaeb1d24563a799ac8aba4236796396f20f23523cb.exe
Reference:https://vigia.bisite.es/
Rule name:Windows_Trojan_Arechclient2_b6ea1c83
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_RedLineStealer_15ee6903
Create hunting rule
Author:Elastic Security
Rule name:WIN_Malware_XWorm_ForgeAuto_6b06c990_Extrait
Create hunting rule
Author:Marjoriefort
Description:Detects XWorm (pe, etat extrait)
Rule name:win_redline_stealer_generic
Create hunting rule
Author:dubfib
Rule name:WIN_Sample_Unique_69354b41
Create hunting rule
Author:Marjoriefort
Description:Specimen unique (soumission Bazaar) - strings distinctifs propres au sample
Reference:69354b41e10daf03d3f3af881b32d5c0fec56b1cfe96629fd4c5263413a42854.exe

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Arechclient2

Microsoft Software Installer (MSI) msi 4351a7e899a2d3d2b8fa465b2567857a03ecc48aef9b9a67bc8bbd8f67303ec0

(this sample)

  
Link
https://tria.ge/261111-d1mvvaea99/behavioral2
  
Dropped by
ACRStealer
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/99354/

Comments