MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5dc336e0f6481f2d00bf2097716176277b45fc2cae9a96b0e2f9f42489edc9c1. 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


KoiLoader


Vendor detections: 11


Intelligence 11 IOCs 1 YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5dc336e0f6481f2d00bf2097716176277b45fc2cae9a96b0e2f9f42489edc9c1
SHA3-384 hash: 4ce3435ba205114d7374c06542c0688fb591faf51319cc7416a1924fde3f24491e6e9d63901f42d7e4942d79484b60e7
SHA1 hash: 936dc3ca7e77091a04ad9a0c21fae33ae3f2cf34
MD5 hash: 784ee2ca6572eee4bb3ef368828b82d7
humanhash: shade-floor-yankee-oregon
File name:sd2.ps1
Download: download sample
Signature KoiLoader
Create hunting rule
File size:478'111 bytes
First seen:2025-06-26 10:35:19 UTC
Last seen:Never
File type:PowerShell (PS) ps1
MIME type:text/plain
ssdeep 6144:r4MQ8/9J3u3BiCb0ZoyzsPy9SVrO1lk5/bG0Y8StJzW1T1utLlb9NoUzBvU1V4LO:r4MQa3VSYue2IlJIv
TLSH T1D6A464EE676E1C9B0D873B7CD3415A92EE8A15A1026180DFF9DD5926F4CF11AC0B0D2B
Magika powershell
Reporter abuse_ch
Tags:KoiLoader ps1


Avatar
abuse_ch
KoiLoader C2:
http://94.156.152.54/index.php

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
http://94.156.152.54/index.php https://threatfox.abuse.ch/ioc/1549377/

Intelligence

File Origin
# of uploads :
1
# of downloads :
102
Origin country :
NL NL
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Trojan.PS.Agent.18998.21273.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
81.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=685d246732ed47a3a8d7716b
Tags:
virus
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated
Link:
https://www.filescan.io/uploads/685d23ba45e80b29f89f5233/reports/5d6c1bf5-3abc-4c15-bf3a-264a2f75534e/overview
Verdict:
Malicious
Labled as:
PS/Trojandownloader.MA
Link:
https://www.hybrid-analysis.com/sample/5dc336e0f6481f2d00bf2097716176277b45fc2cae9a96b0e2f9f42489edc9c1
Result
Threat name:
AgentTesla, KoiLoader
Create hunting rule
Detection:
malicious
Classification:
troj.spyw
Score:
80 / 100
Link:
https://www.joesandbox.com/analysis/1723376
Signature
.NET source code contains very large array initializations
AI detected malicious Powershell script
Found many strings related to Crypto-Wallets (likely being stolen)
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for submitted file
Yara detected AgentTesla
Yara detected KoiLoader
Behaviour
Behavior Graph:
Download SVG
Score:
92%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/5dc336e0f6481f2d00bf2097716176277b45fc2cae9a96b0e2f9f42489edc9c1
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5dc336e0f6481f2d00bf2097716176277b45fc2cae9a96b0e2f9f42489edc9c1/
Verdict:
Malicious
Link:
https://tip.neiki.dev/file/5dc336e0f6481f2d00bf2097716176277b45fc2cae9a96b0e2f9f42489edc9c1
Threat name:
Script-PowerShell.Trojan.KoiLoader
Create hunting rule
Status:
Malicious
First seen:
2025-06-26 10:40:54 UTC
File Type:
Text (PowerShell)
AV detection:
11 of 24 (45.83%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=lxbtnyhwjaps2af7eclxcylwe55ul7bmv2njnmhc7h2cjcpnzhaq._file
Result
Malware family:
koistealer
Create hunting rule
Score:
  10/10
Tags:
family:koistealer execution stealer
Link:
https://tria.ge/reports/250626-mm9l5abl71/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Command and Scripting Interpreter: PowerShell
Blocklisted process makes network request
Detects KoiStealer payload
KoiStealer
Koistealer family
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/5dc336e0f6481f2d00bf2097716176277b45fc2cae9a96b0e2f9f42489edc9c1

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_Remcos_RAT
Create hunting rule
Author:daniyyell
Description:Detects Remcos RAT payloads and commands
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

KoiLoader

PowerShell (PS) ps1 5dc336e0f6481f2d00bf2097716176277b45fc2cae9a96b0e2f9f42489edc9c1

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3569090/
  
Delivery method
Distributed via web download

Comments