MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bf85c808d84f3d1b83c812aaa7362b79b460f3d040ef9848a5df9d407b38b17d. 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 20 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bf85c808d84f3d1b83c812aaa7362b79b460f3d040ef9848a5df9d407b38b17d
SHA3-384 hash: d4f56850c9cfbf265feb8066ec04ceef95d804b86d7e37e7ca8e816ef2687f02cd308e25db0c926fee636e971c903940
SHA1 hash: bdd838629ac0907e462f42ad23bc6a4a79d0964d
MD5 hash: 65d2036c3fe43ec8c853720fd65892d0
humanhash: football-december-mexico-cola
File name:fsd09f2300fgjhdfjhg989df8g989fds080g8df90gd0g989df8g908dfg00fd9g09fdg.hta
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:355'641 bytes
First seen:2025-11-26 19:39:59 UTC
Last seen:Never
File type:HTML Application (hta) hta
MIME type:text/html
ssdeep 384:Q6fQDovJD+k8MgQVN8URcoxVcu0awuV7N6vd1GQVN+Q5bKLtD6VVDH0qt0iGcKQs:v
TLSH T1C174B6CB02CCC684B712B708CFD76715A25E16A63BD3956CBC3EB9F06320576A768931
Magika html
Reporter James_inthe_box
Tags:exe hta RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
141
Origin country :
US US
Vendor Threat Intelligence
Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=692757a26657e343328144f8
Tags:
shell sage hype
Result
Verdict:
Malicious
File Type:
HTA File - Malicious
Link:
https://app.docguard.net/bf85c808d84f3d1b83c812aaa7362b79b460f3d040ef9848a5df9d407b38b17d/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
base64 base64 obfuscated obfuscated opendir overlay powershell
Link:
https://www.filescan.io/uploads/692757a3cf370871515dfe2b/reports/a1f5be9a-a032-4162-bd76-2bd891f68dff/overview
Verdict:
Malicious
Labled as:
BZC.UGZ.Boxter.261
Link:
https://www.hybrid-analysis.com/sample/bf85c808d84f3d1b83c812aaa7362b79b460f3d040ef9848a5df9d407b38b17d
Verdict:
Malicious
File Type:
hta
First seen:
2025-11-26T16:51:00Z UTC
Last seen:
2025-11-26T17:29:00Z UTC
Hits:
~10
Detections:
Trojan.Agentb.TCP.C&C PDM:Trojan.Win32.Generic Trojan-Downloader.JS.SLoad.sb Trojan.JS.SAgent.sb HEUR:Trojan.Script.Generic
Link:
https://opentip.kaspersky.com/bf85c808d84f3d1b83c812aaa7362b79b460f3d040ef9848a5df9d407b38b17d/results?tab=lookup
Score:
24%
Verdict:
Benign
File Type:
SCRIPT
Link:
https://malprob.io/report/bf85c808d84f3d1b83c812aaa7362b79b460f3d040ef9848a5df9d407b38b17d
Verdict:
inconclusive
YARA:
2 match(es)
Tags:
Html
Link:
https://app.malva.re/file/65d2036c3fe43ec8c853720fd65892d0
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/bf85c808d84f3d1b83c812aaa7362b79b460f3d040ef9848a5df9d407b38b17d/
Verdict:
Malicious
Threat:
Family.REMCOS
Link:
https://tip.neiki.dev/file/bf85c808d84f3d1b83c812aaa7362b79b460f3d040ef9848a5df9d407b38b17d
Threat name:
Binary.Malware.Boxter
Create hunting rule
Status:
Malicious
First seen:
2025-11-26 13:28:03 UTC
File Type:
Binary
AV detection:
4 of 38 (10.53%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=x6c4qcgyj46rxa6ickvkonrlpg2gb46qidxzqsff36oua6zywf6q._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:f.f adware discovery execution rat spyware
Link:
https://tria.ge/reports/251126-ydnh3synam/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
Remcos
Remcos family
Malware Config
C2 Extraction:
172.245.23.162:465
Dropper Extraction:
http://198.23.177.203/img/optimized_MSI.png
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/bf85c808d84f3d1b83c812aaa7362b79b460f3d040ef9848a5df9d407b38b17d

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:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
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:NET
Create hunting rule
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
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:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.
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