MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bb09baf5e11397e90c7ae384573ea7e7e2ba86da0f2a68325ab741519f6dc8f5. 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: 10


Intelligence 10 IOCs YARA 19 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bb09baf5e11397e90c7ae384573ea7e7e2ba86da0f2a68325ab741519f6dc8f5
SHA3-384 hash: 1032978d4e2d86a4f06f476de766f9e9c2db284a0a6aaba1ecb78cf76f1b1e46dc3eea2b55819b94584657c1a5ceb0fe
SHA1 hash: 79aa93d1eec9b064d45d291689eee03dec45f1d6
MD5 hash: 9cf14f02d46c260783d3cdf75c92196a
humanhash: kilo-east-lithium-delta
File name:AUGUST64_Maxima_International_Sourcing.js
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'110'083 bytes
First seen:2026-08-27 08:18:53 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 24576:vfForI/tjOtUCanPpVZzY774U/4F2dtAA:XF7DiEWCA
TLSH T18C3512F81986CB622B1F273ED7678914153F06D2C88F884FAE5E73E61A7D46548E0F81
Magika batch
Reporter abuse_ch
Tags:js RAT RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
130
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd evasive lolbin obfuscated powershell repaired
Link:
https://www.filescan.io/uploads/6a8ff3174c105ed9ea5c39b1/reports/ea2a8dbf-580f-4991-a1ef-bfc58ab43fdb/overview
Verdict:
Suspicious
Labled as:
JS/Agent.EWV
Link:
https://www.hybrid-analysis.com/sample/bb09baf5e11397e90c7ae384573ea7e7e2ba86da0f2a68325ab741519f6dc8f5
Verdict:
Malicious
File Type:
js
First seen:
2026-08-27T02:48:00Z UTC
Last seen:
2026-08-27T05:10:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/bb09baf5e11397e90c7ae384573ea7e7e2ba86da0f2a68325ab741519f6dc8f5/results?tab=lookup
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1964582
Signature
.NET source code contains process injector
.NET source code references suspicious native API functions
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Creates a thread in another existing process (thread injection)
Detected Remcos RAT
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Hijacks the control flow in another process
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
JScript performs obfuscated calls to suspicious functions
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Sigma detected: Dot net compiler compiles file from suspicious location
Sigma detected: Remcos
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Unusual module load detection (module proxying)
Uses attrib.exe to hide files
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)
Wscript starts Powershell (via cmd or directly)
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1964582 Sample: AUGUST64_Maxima_Internation... Startdate: 27/08/2026 Architecture: WINDOWS Score: 100 62 asybk.ydns.eu 2->62 82 Found malware configuration 2->82 84 Malicious sample detected (through community Yara rule) 2->84 86 Antivirus detection for URL or domain 2->86 88 10 other signatures 2->88 11 wscript.exe 1 1 2->11         started        14 svchost.exe 1 1 2->14         started        signatures3 process4 dnsIp5 104 JScript performs obfuscated calls to suspicious functions 11->104 106 Wscript starts Powershell (via cmd or directly) 11->106 108 Windows Scripting host queries suspicious COM object (likely to drop second stage) 11->108 110 2 other signatures 11->110 17 cmd.exe 1 11->17         started        20 powershell.exe 8 11->20         started        66 127.0.0.1 unknown unknown 14->66 signatures6 process7 file8 68 Wscript starts Powershell (via cmd or directly) 17->68 70 Uses attrib.exe to hide files 17->70 23 powershell.exe 17->23         started        25 powershell.exe 15 17->25         started        27 conhost.exe 17->27         started        29 attrib.exe 1 17->29         started        56 C:\Users\user\...\20267271787819849340.cmd, DOS 20->56 dropped 72 Found suspicious powershell code related to unpacking or dynamic code loading 20->72 31 conhost.exe 20->31         started        signatures9 process10 process11 33 powershell.exe 32 23->33         started        file12 54 C:\Users\user\AppData\...\tpxxfqhq.cmdline, Unicode 33->54 dropped 74 Writes to foreign memory regions 33->74 76 Maps a DLL or memory area into another process 33->76 78 Creates a thread in another existing process (thread injection) 33->78 80 Loading BitLocker PowerShell Module 33->80 37 msiexec.exe 2 33->37         started        40 choice.exe 4 1 33->40         started        43 csc.exe 3 33->43         started        46 2 other processes 33->46 signatures13 process14 dnsIp15 90 Hijacks the control flow in another process 37->90 92 Writes to foreign memory regions 37->92 94 Modifies the context of a thread in another process (thread injection) 37->94 102 2 other signatures 37->102 64 asybk.ydns.eu 66.11.124.221, 2419, 49711 TIER-NET-TierNetTechnologiesLLCUS United States 40->64 96 Contains functionality to bypass UAC (CMSTPLUA) 40->96 98 Detected Remcos RAT 40->98 100 Unusual module load detection (module proxying) 40->100 48 conhost.exe 40->48         started        58 C:\Users\user\AppData\Local\...\tpxxfqhq.dll, PE32 43->58 dropped 50 cvtres.exe 1 43->50         started        60 C:\Users\user\AppData\Local\...\i3u51reg.dll, PE32 46->60 dropped 52 cvtres.exe 1 46->52         started        file16 signatures17 process18
Score:
99%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/bb09baf5e11397e90c7ae384573ea7e7e2ba86da0f2a68325ab741519f6dc8f5
Gathering data
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/bb09baf5e11397e90c7ae384573ea7e7e2ba86da0f2a68325ab741519f6dc8f5/
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xme3v5pbcol6sdd24ocfopvh47rlvbw2b4vgqms2w5avdh3nzd2q._file
Verdict:
malicious
Label(s):
Remcos
Create hunting rule
Link:
https://reports.threatray.com/0b99a835-3c5d-4922-8390-265970c8b8c7
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:august64 defense_evasion execution rat
Link:
https://tria.ge/reports/260827-j741lazxfz/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Views/modifies file attributes
Command and Scripting Interpreter: JavaScript
Command and Scripting Interpreter: PowerShell
Enumerates physical storage devices
Hide Artifacts: Hidden Files and Directories
Suspicious use of SetThreadContext
Checks computer location settings
Family: Remcos
Malware Config
C2 Extraction:
asybk.ydns.eu:2419
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
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
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:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:Remcos_unpacked_PulseIntel
Create hunting rule
Author:PulseIntel
Description:Remcos Payload
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:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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:Windows_Trojan_Remcos_921ef449
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_Remcos_b296e965
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/exploring-the-ref2731-intrusion-set
Rule name:win_remcos_rat_unpacked
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:win_remcos_w0
Create hunting rule
Author:Matthew @ Embee_Research
Description:Detects strings present in remcos rat Samples.
Rule name:yarahub_win_remcos_rat_unpacked_aug_2023
Create hunting rule
Author:Matthew @ Embee_Research

File information

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

Comments