MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4af2b83387e6ab3f4ec461150e1c6930c1d92ee4d5a7d8e39cd8a222127d9df1. 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


Threat unknown


Vendor detections: 8


Intelligence 8 IOCs YARA 5 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4af2b83387e6ab3f4ec461150e1c6930c1d92ee4d5a7d8e39cd8a222127d9df1
SHA3-384 hash: 65dd91a731522e6e3d7a514ac11c6eeb8824df000e061cde1e696a6b4a9b9cbbc34c7ac9d8dfaeb4d85da02394ff934b
SHA1 hash: d3711cf96242f70968b71343c363062800443232
MD5 hash: 806fb7876b63ba89d2432cb831be01ba
humanhash: single-quebec-nine-sink
File name:a.ps1
Download: download sample
File size:1'699 bytes
First seen:2026-03-16 23:37:31 UTC
Last seen:Never
File type:PowerShell (PS) ps1
MIME type:text/plain
ssdeep 48:HaiT9WhBoMahXwwuABdP50D4yVIsimAwlmf:HRT9SwuAB4Dr+YY
TLSH T17231361CB3FAD99964922245DCF604DC2CAE007F627E51F6E69DC9A0102112F437EFDA
Magika powershell
Reporter kirk

Intelligence

File Origin
# of uploads :
1
# of downloads :
181
Origin country :
US US
Vendor Threat Intelligence
No detections
Detection(s):
SecuriteInfo.com.PUA.IA.Suspicious.35812123.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=69b8946793b644ca466ac631
Tags:
shell crypt sage
Verdict:
Malicious
Labled as:
PowerShell/Agent.CAF trojan
Link:
https://www.hybrid-analysis.com/sample/4af2b83387e6ab3f4ec461150e1c6930c1d92ee4d5a7d8e39cd8a222127d9df1
Verdict:
Malicious
File Type:
ps1
Detections:
UDS:DangerousObject.Multi.Generic Trojan.PowerShell.DefenderDisabler.sb Trojan.PowerShell.Agent.sb
Link:
https://opentip.kaspersky.com/4af2b83387e6ab3f4ec461150e1c6930c1d92ee4d5a7d8e39cd8a222127d9df1/results?tab=lookup
Score:
2%
Verdict:
Benign
File Type:
SCRIPT
Link:
https://malprob.io/report/4af2b83387e6ab3f4ec461150e1c6930c1d92ee4d5a7d8e39cd8a222127d9df1
Verdict:
Malware
YARA:
2 match(es)
Tags:
DeObfuscated PowerShell
Link:
https://app.malva.re/file/806fb7876b63ba89d2432cb831be01ba
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4af2b83387e6ab3f4ec461150e1c6930c1d92ee4d5a7d8e39cd8a222127d9df1/
Verdict:
Malicious
Threat:
Trojan.PowerShell.DefenderDisabler
Link:
https://tip.neiki.dev/file/4af2b83387e6ab3f4ec461150e1c6930c1d92ee4d5a7d8e39cd8a222127d9df1
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jlzlqm4h42vt6twemekq4hdjgda5slxe2wt5ry443crceet5txyq._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
discovery execution
Link:
https://tria.ge/reports/260316-3mrz3sht6k/
Behaviour
Gathers network information
Gathers system information
Runs net.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: PowerShell
Enumerates processes with tasklist
Badlisted process makes network request
Malware Config
Dropper Extraction:
https://nelark.icu/xftaswx/
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/4af2b83387e6ab3f4ec461150e1c6930c1d92ee4d5a7d8e39cd8a222127d9df1

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:Detect_Remcos_RAT
Create hunting rule
Author:daniyyell
Description:Detects Remcos RAT payloads and commands
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
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

PowerShell (PS) ps1 4af2b83387e6ab3f4ec461150e1c6930c1d92ee4d5a7d8e39cd8a222127d9df1

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3797666/
  
Delivery method
Distributed via web download

Comments


Avatar
commented on 2026-03-16 23:38:07 UTC

LNK dropper chain from nelark[.]icu (195.26.242.135, Contabo). Kill chain: 1.pdf.lnk -> bb.ps1 (beacon) -> bypass.bat (fodhelper UAC bypass) -> bpersist.ps1 (Defender exclusions persistence) -> scheduler-once.bat (schtask as SYSTEM every 5min) -> a.ps1 (C2 polling loop). C2 endpoints: bb.php, get-command.php, post_proc.php, index.php under /xftaswx/res/. Persistence: schtask Intel(R) Ethernet3 Connection 1219-LM. Victim ID: HKLM:\Software\Wireless\uid