MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8f4cb5ddc22fbf3f8118eaa14c1cbb7aae10ba6b65ff44cb2345b10f2eb48304. 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: 20


Intelligence 20 IOCs YARA 18 File information Comments

SHA256 hash: 8f4cb5ddc22fbf3f8118eaa14c1cbb7aae10ba6b65ff44cb2345b10f2eb48304
SHA3-384 hash: e820c265295e51d8341ee5054405a3b523dba82aad9799b382925312300f3c466b553a80196d383a28a7ff96c4fe092f
SHA1 hash: fbda8935368d40ccdcdb021b612833bb2750fe05
MD5 hash: 4551bf26ba09b810065688d41d42ab9e
humanhash: single-fifteen-lion-sierra
File name:64B.exe
Download: download sample
Signature RemcosRAT
File size:615'936 bytes
First seen:2025-09-05 15:13:04 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 8b3e0763eddbb01367bd21396e110071 (2 x RemcosRAT)
ssdeep 12288:Px4Ej9v8Rfz0dVIcoDQ4FlC/prvc//C5ou5Gjyw:PmEjV8pz0dVRoDQYC/prA/C535
Threatray 1'056 similar samples on MalwareBazaar
TLSH T1B2D46D55A3D441F4D07BC234C9828537E6F2BC056671862F03E75E5B6F232A29F2EB26
TrID 48.7% (.EXE) Win64 Executable (generic) (10522/11/4)
23.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
9.3% (.EXE) OS/2 Executable (generic) (2029/13)
9.2% (.EXE) Generic Win/DOS Executable (2002/3)
9.2% (.EXE) DOS Executable Generic (2000/1)
Magika pebin
Reporter abuse_ch
Tags:exe RAT RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
113
Origin country :
SE SE
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
fd0988fd6dd57940fb1bcbe9233e865236e123d3c092efb9fba7df4e89e94a6a.exe
Verdict:
Malicious activity
Analysis date:
2025-09-05 10:19:42 UTC
Tags:
rat remcos remote loader stealc stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Tags:
downloader dropper remcos virus
Result
Verdict:
Clean
Maliciousness:

Behaviour
Сreating synchronization primitives
Connecting to a non-recommended domain
Connection attempt
Sending a custom TCP request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
cmd crypto evasive exploit explorer fingerprint keylogger lolbin microsoft_visual_cc obfuscated packed rat remcos rundll32 windows
Verdict:
Malicious
File Type:
exe x64
First seen:
2025-09-05T04:21:00Z UTC
Last seen:
2025-09-05T04:21:00Z UTC
Hits:
~100
Detections:
PDM:Trojan.Win32.Generic Backdoor.Win32.Remcos.aamz Backdoor.Remcos.HTTP.C&C VHO:Trojan.Win64.Convagent.gen VHO:Trojan.Win64.Agent.gen
Result
Threat name:
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Deletes itself after installation
Detected Remcos RAT
Disable UAC(promptonsecuredesktop)
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Remcos
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 64 Exe x64
Threat name:
Win64.Backdoor.Remcos
Status:
Malicious
First seen:
2025-09-04 19:46:13 UTC
File Type:
PE+ (Exe)
Extracted files:
8
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos defense_evasion trojan
Behaviour
Modifies registry class
Suspicious use of WriteProcessMemory
System policy modification
Enumerates physical storage devices
Checks computer location settings
Deletes itself
UAC bypass
Malware Config
C2 Extraction:
196.251.83.33:2404
Verdict:
Malicious
Tags:
rat remcos Win.Trojan.Remcos-9841897-0
YARA:
malware_windows_remcos_rat win_remcos_rat_unpacked Windows_Trojan_Remcos_b296e965 MAL_EXE_Remcos_RAT_Jul_22
Unpacked files
SH256 hash:
8f4cb5ddc22fbf3f8118eaa14c1cbb7aae10ba6b65ff44cb2345b10f2eb48304
MD5 hash:
4551bf26ba09b810065688d41d42ab9e
SHA1 hash:
fbda8935368d40ccdcdb021b612833bb2750fe05
Detections:
win_remcos_w0 Remcos
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_AllMal_Detector
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
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:remcos_
Author:Michelle Khalil
Description:This rule detects unpacked remcos malware samples.
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.

Web download

RemcosRAT

Executable exe 8f4cb5ddc22fbf3f8118eaa14c1cbb7aae10ba6b65ff44cb2345b10f2eb48304

(this sample)

  
Delivery method
Distributed via web download

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