MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 77b015bc671a8973f4860bd55352b39c681ecdad4ac48a7348c6bb6fee204898. 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: 16


Intelligence 16 IOCs YARA 20 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 77b015bc671a8973f4860bd55352b39c681ecdad4ac48a7348c6bb6fee204898
SHA3-384 hash: d555938fe3d42ed8f53deda65ffa157262b1ac128662da8ce2a5ae049a8f6059b5b185140914d17d5432f12d87924d35
SHA1 hash: 5ffaa90dd2f45ac84bb1702a0789794e2c4c30fa
MD5 hash: a1a32d741ce37d937efc08409da90c14
humanhash: utah-mango-idaho-fillet
File name:file
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:4'102'144 bytes
First seen:2026-02-03 08:06:22 UTC
Last seen:2026-02-03 13:12:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash d90e501a64bb3d4b1653a821eaaa3d82 (1 x RemcosRAT)
ssdeep 49152:aFoQ5hd8Mmbg6zz1JtiCECh7JpIoBOctvRDN80g9/GgFZXahtPtMtGKeCEdMd5Nx:aFs31fpAIvRDN80g9/GToWPhzb
TLSH T1F6168D1EBA6D40E5C2BEC13C829BD90BEA7178514326D6CB65E48E190F67BF05B3E350
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 Bitsight
Tags:dropped-by-amadey exe fbf543 RemcosRAT


Avatar
Bitsight
url: http://130.12.180.43/files/6542402214/1CI8AsA.exe

Intelligence

File Origin
# of uploads :
28
# of downloads :
192
Origin country :
US US
Vendor Threat Intelligence
No detections
Malware family:
remcos
Create hunting rule
ID:
1
File name:
_77b015bc671a8973f4860bd55352b39c681ecdad4ac48a7348c6bb6fee204898.exe
Verdict:
Malicious activity
Analysis date:
2026-02-03 08:07:41 UTC
Tags:
remcos rat
Link:
https://app.any.run/tasks/643d7d4a-f20f-49bd-843f-43859fcede26

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/51424/
Detection(s):
SecuriteInfo.com.Win64.Malware-gen.63895536.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
91.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6981acc62198a42a68056a35
Tags:
downloader shellcode dropper
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Connecting to a non-recommended domain
Connection attempt
Sending a custom TCP request
Creating a file in the %temp% directory
Launching a process
Creating a window
Searching for synchronization primitives
Loading a suspicious library
Creating a file
Modifying a system file
Creating a file in the Windows subdirectories
Creating a file in the Program Files subdirectories
Creating a service
Launching a service
Creating a process from a recently created file
DNS request
Moving a file to the Windows subdirectory
Using the Windows Management Instrumentation requests
Possible injection to a system process
Enabling autorun with the shell\open\command registry branches
Enabling autorun
Enabling autorun for a service
Unauthorized injection to a recently created process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context anti-debug base64 cmd config-extracted crypto crypto evasive evasive expand exploit explorer fingerprint keylogger lolbin lolbin microsoft_visual_cc packed packed peloader rat rat remcos remcos rundll32 windows
Link:
https://www.filescan.io/uploads/6981acbc981ff1d38a461ec0/reports/5f4c2092-5544-4d70-a889-5cffaf2ff4e5/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/77b015bc671a8973f4860bd55352b39c681ecdad4ac48a7348c6bb6fee204898
Verdict:
Malicious
File Type:
exe x64
First seen:
2026-02-03T05:15:00Z UTC
Last seen:
2026-02-04T08:40:00Z UTC
Hits:
~100
Detections:
Backdoor.Win32.Remcos.sb Trojan-Spy.Win64.Agent.sb PDM:Trojan.Win32.Generic Backdoor.Win32.Remcos.abiw
Link:
https://opentip.kaspersky.com/77b015bc671a8973f4860bd55352b39c681ecdad4ac48a7348c6bb6fee204898/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/039f4ffb-b014-4cba-9c59-9f8760b7dd58
Score:
13%
Verdict:
Benign
File Type:
PE
Link:
https://malprob.io/report/77b015bc671a8973f4860bd55352b39c681ecdad4ac48a7348c6bb6fee204898
Gathering data
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/77b015bc671a8973f4860bd55352b39c681ecdad4ac48a7348c6bb6fee204898/
Verdict:
Malicious
Threat:
Family.REMCOS
Link:
https://tip.neiki.dev/file/77b015bc671a8973f4860bd55352b39c681ecdad4ac48a7348c6bb6fee204898
Threat name:
Win64.Backdoor.Remcos
Create hunting rule
Status:
Suspicious
First seen:
2026-02-03 08:07:34 UTC
File Type:
PE+ (Exe)
Extracted files:
1
AV detection:
11 of 24 (45.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=o6yblpdhdkexh5egbpkvguvttrub5tnnjlciu42iy25w73rajcma._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
Similar samples:
error
RemcosRAT
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:mr white defense_evasion rat trojan
Link:
https://tria.ge/reports/260203-jz6t8aht9e/
Behaviour
System policy modification
Remcos
Remcos family
UAC bypass
Malware Config
C2 Extraction:
91.215.85.116:433
Unpacked files
SH256 hash:
77b015bc671a8973f4860bd55352b39c681ecdad4ac48a7348c6bb6fee204898
MD5 hash:
a1a32d741ce37d937efc08409da90c14
SHA1 hash:
5ffaa90dd2f45ac84bb1702a0789794e2c4c30fa
Link:
https://www.unpac.me/results/59679f06-939b-4214-8d04-be3eaa2c2564/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/77b015bc671a/report/overview.html
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/77b015bc671a8973f4860bd55352b39c681ecdad4ac48a7348c6bb6fee204898

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:DebuggerHiding__Thread
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:malware_shellcode_hash
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect shellcode api hash value
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
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_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.

Web download

RemcosRAT

Executable exe 77b015bc671a8973f4860bd55352b39c681ecdad4ac48a7348c6bb6fee204898

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3771090/
Cape
Cape
https://www.capesandbox.com/analysis/51424/
  
URLhaus
https://urlhaus.abuse.ch/url/3771166/

Comments