MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f66bd3ba1b2b9190f924031ebb2346338df2e26c189850ee3237ea80adc898eb. 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: 14


Intelligence 14 IOCs YARA 32 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f66bd3ba1b2b9190f924031ebb2346338df2e26c189850ee3237ea80adc898eb
SHA3-384 hash: 66f6ca25d9ca3d68bd2a4f5ef1ca69f36708d30a33566ba5266c332db6fe96a0ea8fe4989bf408c020f1c2821c776947
SHA1 hash: eb202efa4444c09efb7b2aa251d2468bc532ccd5
MD5 hash: a1b49589f198f600b99321173cd0ccb9
humanhash: sierra-crazy-south-lima
File name:f66bd3ba1b2b9190f924031ebb2346338df2e26c189850ee3237ea80adc898eb
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:3'965'440 bytes
First seen:2026-08-10 14:10:56 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash e95f383854a3ed92d914fe20659df310 (1 x RemcosRAT)
ssdeep 49152:j3rhG6uM4q08ykizCL5+zEOOho992tB61HY8SB/Q8DbVCL30IjOqYzUGj4CUrfMy:MbagAD430Ijezzj4xTPnSob
TLSH T195067D70D351B064D1A7C430CEDA4EF464A1703B52366D1F1BC5E81A25FBE61ABAE3A3
TrID 37.0% (.EXE) Win64 Executable (generic) (6522/11/2)
28.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
11.5% (.EXE) OS/2 Executable (generic) (2029/13)
11.3% (.EXE) Generic Win/DOS Executable (2002/3)
11.3% (.EXE) DOS Executable (generic) (2000/1)
Magika pebin
dhash icon fcccd0c4d4c4d8b0 (1 x RemcosRAT)
Reporter adrian__luca
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
62
Origin country :
HU HU
Vendor Threat Intelligence
No detections
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/79750/
Detection(s):
SecuriteInfo.com.Trojan.Remcos.1120.17846.18928.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Сreating synchronization primitives
Creating a file
Connection attempt to an infection source
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context anti-debug crypto microsoft_visual_cc packed
Link:
https://www.filescan.io/uploads/6a79dc8869834dc6806951cb/reports/71ec6e61-ee84-4dd5-a428-a7e59890dcbf/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/f66bd3ba1b2b9190f924031ebb2346338df2e26c189850ee3237ea80adc898eb
Verdict:
Malicious
File Type:
exe x64
First seen:
2026-07-10T11:10:00Z UTC
Last seen:
2026-08-10T11:44:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/f66bd3ba1b2b9190f924031ebb2346338df2e26c189850ee3237ea80adc898eb/results?tab=lookup
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/290e9dd3-f4bb-4727-aaf5-51dd2bb0092a
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f66bd3ba1b2b9190f924031ebb2346338df2e26c189850ee3237ea80adc898eb
Gathering data
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f66bd3ba1b2b9190f924031ebb2346338df2e26c189850ee3237ea80adc898eb/
Threat name:
Win64.Trojan.Kepavll
Create hunting rule
Status:
Malicious
First seen:
2026-07-12 00:06:16 UTC
File Type:
PE+ (Exe)
Extracted files:
7
AV detection:
26 of 36 (72.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6zv5hoq3foizb6jeamplwi2ggog7fytmdcmfb3rsg7vibloitdvq._file
Verdict:
malicious
Label(s):
Remcos
Create hunting rule
Link:
https://reports.threatray.com/9e73818c-8aff-4ae5-a4c6-7755c65ba623
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:camry discovery rat
Link:
https://tria.ge/reports/260810-rhryqszhlb/
Behaviour
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Family: Remcos
Malware Config
C2 Extraction:
209.127.35.195:3533
Unpacked files
SH256 hash:
f66bd3ba1b2b9190f924031ebb2346338df2e26c189850ee3237ea80adc898eb
MD5 hash:
a1b49589f198f600b99321173cd0ccb9
SHA1 hash:
eb202efa4444c09efb7b2aa251d2468bc532ccd5
Link:
https://www.unpac.me/results/2a4494f0-0746-41b7-81a1-2ccc3e18d2be/
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/f66bd3ba1b2b9190f924031ebb2346338df2e26c189850ee3237ea80adc898eb

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:DebuggerCheck__MemoryWorkingSet
Create hunting rule
Author:Fernando Mercês
Description:Anti-debug process memory working set size check
Reference:http://www.gironsec.com/blog/2015/06/anti-debugger-trick-quicky/
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:MAL_Trigon_Dropper
Create hunting rule
Author:jaszzz
Description:Trigon multi-stage malicious dropper - process injection, keylogging, screenshot capture
Reference:URL|trigon
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:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
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:TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE
Create hunting rule
Author:CYFARE
Description:Detects Windows malware employing anti-VM / anti-sandbox evasion techniques across VMware, VirtualBox, Hyper-V, QEMU, Xen, and generic sandbox environments
Reference:https://cyfare.net/
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_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.

Cape
Cape
https://www.capesandbox.com/analysis/79750/

Comments