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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a38f40577566f1bd0087c8ea1114664878ceeca700ea5f34cbcca4eab500f44e. 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: 11


Intelligence 11 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a38f40577566f1bd0087c8ea1114664878ceeca700ea5f34cbcca4eab500f44e
SHA3-384 hash: 5a9d084fe7d20d46ebacb4f163cb2e50aad2d0ceb26b9585ad791bfcd8c195a0a8a95aea0c3ddf7620099669600bcf5b
SHA1 hash: c4bcba533ee6940e40e77f7912766c33a35d04fa
MD5 hash: c4e1468c2cddde592e7a7928653656b9
humanhash: indigo-missouri-london-fish
File name:DC-F1-B1-F9-F4-6B.ps1
Download: download sample
Signature Arechclient2
Create hunting rule
File size:216'085 bytes
First seen:2026-09-19 12:29:45 UTC
Last seen:Never
File type:PowerShell (PS) ps1
MIME type:text/plain
ssdeep 3072:NYjHjD1kG/FnKNWzEof0RoWNFrEbR1GD0cTiLqPe1Tf7UfltL2M8q9vjLz0qrm0+:kJ/FnUBDrEXGDtTiLqML7OlbDJPz0Hpz
TLSH T1A124841139C0A375164EDCB72D814C199ED9F533D38A985C7ACE49C5AF87AF886E8C38
Magika powershell
Reporter aachum
Tags:178-104-144-200 Arechclient2 AsgardProtector dropped-by-ACRStealer ps1 SectopRAT


Avatar
iamaachum
https://marketing.saloon.ink/DC-F1-B1-F9-F4-6B

Arechclient2/SectopRAT C2: 178.104.144.200

Intelligence

File Origin
# of uploads :
1
# of downloads :
90
Origin country :
ES ES
Vendor Threat Intelligence
No detections
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm base64 encrypted evasive fingerprint
Link:
https://www.filescan.io/uploads/6aae805cbf0a877a92dca37e/reports/d9ca4773-ff7e-4dcd-8a38-3a3af3a0c20d/overview
Verdict:
Suspicious
Labled as:
PowerShell/Obfuscated.BY trojan
Link:
https://www.hybrid-analysis.com/sample/a38f40577566f1bd0087c8ea1114664878ceeca700ea5f34cbcca4eab500f44e
Verdict:
Malicious
File Type:
ps1
First seen:
2026-09-18T16:56:00Z UTC
Last seen:
2026-09-21T09:15:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/a38f40577566f1bd0087c8ea1114664878ceeca700ea5f34cbcca4eab500f44e/results?tab=lookup
Result
Threat name:
Arechclient2
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1975113
Signature
Creates a thread in another existing process (thread injection)
Creates processes via WMI
Found direct / indirect Syscall (likely to bypass EDR)
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Modifies the context of a thread in another process (thread injection)
Powershell drops PE file
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: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Dot net compiler compiles file from suspicious location
Suspicious execution chain found
Tries to harvest and steal browser information (history, passwords, etc)
Writes to foreign memory regions
Yara detected Arechclient2
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1975113 Sample: DC-F1-B1-F9-F4-6B.ps1 Startdate: 19/09/2026 Architecture: WINDOWS Score: 100 61 metrics.agoxpathbet.one 2->61 63 k8s-ingressn-bscmainn-92244380d0-811109128.us-east-1.elb.amazonaws.com 2->63 65 3 other IPs or domains 2->65 75 Found malware configuration 2->75 77 Malicious sample detected (through community Yara rule) 2->77 79 Yara detected Arechclient2 2->79 81 3 other signatures 2->81 10 powershell.exe 15 43 2->10         started        15 AutoIt3.exe 2->15         started        17 AutoIt3.exe 2->17         started        19 svchost.exe 1 1 2->19         started        signatures3 process4 dnsIp5 71 metrics.agoxpathbet.one 104.21.45.199 CLOUDFLARENET-CloudflareIncUS Canada 10->71 55 C:\Users\user\AppData\Roaming\...\AutoIt3.exe, PE32+ 10->55 dropped 57 C:\Users\user\AppData\Roaming\...\Fabrics.a3x, data 10->57 dropped 59 C:\Users\user\AppData\...\oqpmw3ub.cmdline, Unicode 10->59 dropped 101 Suspicious execution chain found 10->101 103 Creates processes via WMI 10->103 105 Loading BitLocker PowerShell Module 10->105 107 Powershell drops PE file 10->107 21 AutoIt3.exe 1 10->21         started        25 conhost.exe 10->25         started        27 csc.exe 3 10->27         started        33 2 other processes 10->33 109 Writes to foreign memory regions 15->109 111 Modifies the context of a thread in another process (thread injection) 15->111 113 Injects a PE file into a foreign processes 15->113 115 Found direct / indirect Syscall (likely to bypass EDR) 15->115 29 RegAsm.exe 15->29         started        31 RegAsm.exe 17->31         started        73 127.0.0.1 unknown unknown 19->73 file6 signatures7 process8 file9 49 C:\Users\user\AppData\Roaming\...\RegAsm.exe, PE32+ 21->49 dropped 91 Writes to foreign memory regions 21->91 93 Modifies the context of a thread in another process (thread injection) 21->93 95 Injects a PE file into a foreign processes 21->95 97 Found direct / indirect Syscall (likely to bypass EDR) 21->97 35 RegAsm.exe 14 12 21->35         started        99 Installs a global keyboard hook 25->99 51 C:\Users\user\AppData\Local\...\oqpmw3ub.dll, PE32 27->51 dropped 39 cvtres.exe 1 27->39         started        53 C:\Users\user\AppData\Local\...\ytc1nnvi.dll, PE32 33->53 dropped 41 cvtres.exe 1 33->41         started        signatures10 process11 dnsIp12 67 178.104.144.200 HETZNER-ASDE Germany 35->67 69 k8s-ingressn-bscmainn-92244380d0-811109128.us-east-1.elb.amazonaws.com 44.207.41.152 AMAZON-AES-AmazoncomIncUS United States 35->69 83 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 35->83 85 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 35->85 87 Tries to harvest and steal browser information (history, passwords, etc) 35->87 89 4 other signatures 35->89 43 chrome.exe 35->43         started        45 chrome.exe 35->45 injected signatures13 process14 process15 47 WerFault.exe 43->47         started       
Score:
89%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/a38f40577566f1bd0087c8ea1114664878ceeca700ea5f34cbcca4eab500f44e
Verdict:
Malware
YARA:
1 match(es)
Tags:
Base64 Block Contains Base64 Block DeObfuscated PowerShell T1027 T1059.001 T1105
Link:
https://app.malva.re/file/c4e1468c2cddde592e7a7928653656b9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a38f40577566f1bd0087c8ea1114664878ceeca700ea5f34cbcca4eab500f44e/
Threat name:
Win32.Trojan.Kepavll
Create hunting rule
Status:
Malicious
First seen:
2026-09-19 11:20:16 UTC
File Type:
Text (PowerShell)
AV detection:
9 of 36 (25.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uohuav3vm3y32aehzdvbcfdgjb4m53fhadvf6nglzssovnia6rha._file
Result
Malware family:
sectoprat
Create hunting rule
Score:
  10/10
Tags:
family:sectoprat execution persistence rat trojan
Link:
https://tria.ge/reports/260919-ppmaqafd56/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: PowerShell
Suspicious use of SetThreadContext
Adds Run key to start application
Executes dropped EXE
Badlisted process makes network request
Family: SectopRAT
SectopRAT payload
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/a38f40577566f1bd0087c8ea1114664878ceeca700ea5f34cbcca4eab500f44e

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_powershell
Create hunting rule
Author:daniyyell
Description:Detects suspicious PowerShell activity related to malware execution
Rule name:Detect_PowerShell_Obfuscation
Create hunting rule
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:Suspicious_PS_Strings
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:observed set of strings which are likely malicious, observed with Jupyter malware.
Reference:http://security5magics.blogspot.com/2020/12/tracking-jupyter-malware.html
Rule name:SUSP_PowerShell_Base64_Decode
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detects PowerShell code to decode Base64 data. This can yield many FP
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)

File information

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

Web download

Arechclient2

PowerShell (PS) ps1 a38f40577566f1bd0087c8ea1114664878ceeca700ea5f34cbcca4eab500f44e

(this sample)

4f648bf2c2076533a0d5b887665a057cf6a5d4143711b08c7a9f34e87d3064b2

  
Link
https://tria.ge/260919-phrxmaty5m/behavioral2
  
Dropped by
ACRStealer
  
Delivery method
Distributed via web download
  
Dropping
SHA256 4f648bf2c2076533a0d5b887665a057cf6a5d4143711b08c7a9f34e87d3064b2
  
Dropping
MD5 63b43a4d13490e53a46a4ffbde9c5cc8

Comments