MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 80eca79426445f6bb320520bef624f7b9d1bf2db5c088912161b49d0fbf4ca7c. 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



RemcosRAT


Vendor detections: 12


Intelligence 12 IOCs YARA 23 File information Comments

SHA256 hash: 80eca79426445f6bb320520bef624f7b9d1bf2db5c088912161b49d0fbf4ca7c
SHA3-384 hash: 85b38b097d2ae6ef82ff4f5be73c8d1fd724257e3ab74506042bd4d9dbf137a9f14af3bdc0eec9144e7095ffe5c23277
SHA1 hash: e315dc038e67e82c5db5329d3d3607649f7f4284
MD5 hash: b98413818b444fd02b2a5b4ecaa59beb
humanhash: arkansas-kitten-hydrogen-crazy
File name:INV-PO3029998 BAL-USD23,000.js
Download: download sample
Signature RemcosRAT
File size:1'545'658 bytes
First seen:2025-11-19 13:42:25 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 24576:J5xvALqe7J5j1+myDM4A0R9+HzBY6t3eQzGvaO:i59wMF0CT1gJ
Threatray 167 similar samples on MalwareBazaar
TLSH T10B652734985396DDA26FE4B321E2D6C67F7D3173931EB92C20BC1E421997D0E2538B68
Magika javascript
Reporter smica83
Tags:js RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
124
Origin country :
HU HU
Vendor Threat Intelligence
Verdict:
Malicious
Score:
90.2%
Tags:
obfuscate xtreme shell
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm base64 evasive fingerprint masquerade obfuscated powershell powershell repaired
Verdict:
Malicious
File Type:
js
First seen:
2025-11-18T06:07:00Z UTC
Last seen:
2025-11-20T00:49:00Z UTC
Hits:
~100
Detections:
Trojan.JS.SAgent.sb HEUR:Trojan.Script.Generic Trojan-Downloader.JS.Cryptoload.sb Trojan.VBS.SAgent.sb HEUR:Trojan.Script.SAgent.gen HEUR:Trojan.PowerShell.Tesre.sb HEUR:Trojan.BAT.Tesre.gen Trojan.PowerShell.AmsiBypass.sb Trojan.BAT.Agent.sb PDM:Trojan.Win32.Generic HEUR:Trojan-Downloader.Script.Generic
Result
Threat name:
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Signature
.NET source code contains a sample name check
.NET source code references suspicious native API functions
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Creates processes via WMI
Detected Remcos RAT
Drops script or batch files to the startup folder
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Drops script at startup location
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: PowerShell Base64 Encoded IEX Cmdlet
Sigma detected: Remcos
Sigma detected: Suspicious PowerShell Parameter Substring
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Wscript starts Powershell (via cmd or directly)
Yara detected Powershell decode and execute
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1816893 Sample: INV-PO3029998 BAL-USD23,000.js Startdate: 19/11/2025 Architecture: WINDOWS Score: 100 90 geoplugin.net 2->90 96 Suricata IDS alerts for network traffic 2->96 98 Found malware configuration 2->98 100 Malicious sample detected (through community Yara rule) 2->100 102 15 other signatures 2->102 10 wscript.exe 1 1 2->10         started        13 cmd.exe 1 2->13         started        15 cmd.exe 1 2->15         started        17 3 other processes 2->17 signatures3 process4 signatures5 116 Wscript starts Powershell (via cmd or directly) 10->116 118 Windows Scripting host queries suspicious COM object (likely to drop second stage) 10->118 120 Suspicious execution chain found 10->120 122 Creates processes via WMI 10->122 19 cmd.exe 1 10->19         started        22 cmd.exe 1 13->22         started        24 conhost.exe 13->24         started        26 cmd.exe 1 15->26         started        28 conhost.exe 15->28         started        30 cmd.exe 1 17->30         started        32 cmd.exe 17->32         started        34 cmd.exe 17->34         started        36 3 other processes 17->36 process6 signatures7 104 Suspicious powershell command line found 19->104 106 Wscript starts Powershell (via cmd or directly) 19->106 108 Bypasses PowerShell execution policy 19->108 38 cmd.exe 1 19->38         started        40 conhost.exe 19->40         started        42 cmd.exe 1 22->42         started        45 cmd.exe 1 26->45         started        47 cmd.exe 1 30->47         started        49 cmd.exe 32->49         started        51 cmd.exe 34->51         started        process8 signatures9 53 cmd.exe 2 38->53         started        124 Suspicious powershell command line found 42->124 126 Wscript starts Powershell (via cmd or directly) 42->126 56 powershell.exe 42->56         started        59 conhost.exe 42->59         started        61 powershell.exe 45->61         started        63 conhost.exe 45->63         started        65 powershell.exe 47->65         started        67 conhost.exe 47->67         started        69 2 other processes 49->69 71 2 other processes 51->71 process10 file11 110 Suspicious powershell command line found 53->110 112 Wscript starts Powershell (via cmd or directly) 53->112 73 powershell.exe 5 35 53->73         started        78 conhost.exe 53->78         started        80 C:\Users\user\AppData\Roaming\...\28bf.bat, ASCII 56->80 dropped 82 C:\Users\user\AppData\Roaming\...\97a4.bat, ASCII 61->82 dropped 84 C:\Users\user\AppData\Roaming\...\26ac.bat, ASCII 65->84 dropped 114 Detected Remcos RAT 65->114 86 C:\Users\user\AppData\Roaming\...\defe.bat, ASCII 69->86 dropped signatures12 process13 dnsIp14 92 192.3.146.207, 2404, 49720 AS-COLOCROSSINGUS United States 73->92 94 geoplugin.net 178.237.33.50, 49721, 80 ATOM86-ASATOM86NL Netherlands 73->94 88 C:\Users\user\AppData\Roaming\...\9edf.bat, ASCII 73->88 dropped 128 Detected Remcos RAT 73->128 130 Drops script or batch files to the startup folder 73->130 132 Found suspicious powershell code related to unpacking or dynamic code loading 73->132 134 Loading BitLocker PowerShell Module 73->134 file15 signatures16
Verdict:
inconclusive
YARA:
1 match(es)
Result
Malware family:
n/a
Score:
  10/10
Tags:
execution
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Command and Scripting Interpreter: PowerShell
Drops startup file
Badlisted process makes network request
Process spawned unexpected child process
Please note that we are no longer able to provide a coverage score for Virus Total.

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:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:CP_Script_Inject_Detector
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:Disable_Defender
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:FreddyBearDropper
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:pe_detect_tls_callbacks
Rule name:pe_no_import_table
Description:Detect pe file that no import table
Rule name:REMCOS_RAT_variants
Rule name:Remcos_unpacked_PulseIntel
Author:PulseIntel
Description:Remcos Payload
Rule name:Sus_CMD_Powershell_Usage
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:ThreadControl__Context
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Windows_Trojan_Remcos_b296e965
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/exploring-the-ref2731-intrusion-set
Rule name:win_remcos_rat_unpacked
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:win_remcos_w0
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:yarahub_win_remcos_rat_unpacked_aug_2023
Author:Matthew @ Embee_Research

File information


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

Comments