MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bf5289069b7b3f5c74a18fa352ee8770d00cdce6ed7cbfd4934d5480307806a1. 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: 17


Intelligence 17 IOCs YARA 36 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bf5289069b7b3f5c74a18fa352ee8770d00cdce6ed7cbfd4934d5480307806a1
SHA3-384 hash: 0f0ebc79bd8cf4188673a4108817b82bd95586e75b7c53d87a6fa8c8389d9636d423a24f6efe1d4edcf5eca1ca59be8e
SHA1 hash: e80b44670ef8c4d10be8e7f70ececff664b76661
MD5 hash: c29d321875bf40dc79ccf293c043f4eb
humanhash: triple-potato-burger-uncle
File name:Request For Quote PDF.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'372'672 bytes
First seen:2025-08-27 12:11:21 UTC
Last seen:2025-08-27 12:15:36 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 1895460fffad9475fda0c84755ecfee1 (344 x Formbook, 98 x AgentTesla, 58 x a310Logger)
ssdeep 24576:v5EmXFtKaL4/oFe5T9yyXYfP1ijXdahu3Um9k9khhzAuqUEl6JDRcjC:vPVt/LZeJbInQRah2Uwk9khhUx
TLSH T18355CF0273D1C062FFAB92734B5AF6115BBC79260123A62F13981DB9F9701B1563E7A3
TrID 40.3% (.EXE) Win64 Executable (generic) (10522/11/4)
19.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
17.2% (.EXE) Win32 Executable (generic) (4504/4/1)
7.7% (.EXE) OS/2 Executable (generic) (2029/13)
7.6% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
Reporter threatcat_ch
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
2
# of downloads :
99
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RequestForQuotePDF.exe
Verdict:
No threats detected
Analysis date:
2025-08-27 12:14:45 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/2b34503d-84fa-4cff-9266-d33d05c024f7

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/23863/
Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68aef63ceb163e0ec182dfec
Tags:
autoit emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Launching a process
Сreating synchronization primitives
Sending a custom TCP request
Connection attempt to an infection source
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug autoit cmdkey compiled-script evasive fingerprint keylogger lolbin microsoft_visual_cc mmc packed remcos threat
Link:
https://www.filescan.io/uploads/68aef64539a6221faa70de60/reports/a06fe379-838f-41b2-849a-8538dc85ad8a/overview
Verdict:
Malicious
Labled as:
Trojan.BAT.Agent.gen
Link:
https://www.hybrid-analysis.com/sample/bf5289069b7b3f5c74a18fa352ee8770d00cdce6ed7cbfd4934d5480307806a1
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-08-26T22:04:00Z UTC
Last seen:
2025-08-26T22:04:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/bf5289069b7b3f5c74a18fa352ee8770d00cdce6ed7cbfd4934d5480307806a1/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/801b100e-0d5d-404b-a420-89d353f03b65
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1766185
Signature
Binary is likely a compiled AutoIt script file
C2 URLs / IPs found in malware configuration
Found API chain indicative of sandbox detection
Found malware configuration
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Sample uses process hollowing technique
Switches to a custom stack to bypass stack traces
Writes to foreign memory regions
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/bf5289069b7b3f5c74a18fa352ee8770d00cdce6ed7cbfd4934d5480307806a1
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bf5289069b7b3f5c74a18fa352ee8770d00cdce6ed7cbfd4934d5480307806a1/
Verdict:
Malicious
Threat:
Family.REMCOS
Link:
https://tip.neiki.dev/file/bf5289069b7b3f5c74a18fa352ee8770d00cdce6ed7cbfd4934d5480307806a1
Threat name:
Win32.Trojan.AutoitInject
Create hunting rule
Status:
Malicious
First seen:
2025-08-27 03:37:16 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=x5jisbu3pm7vy5fbr6rvf3uhodiazxhg5v6l7vetjvkiamdya2qq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
nirsoft
Create hunting rule
Similar samples:
error
RemcosRAT
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection discovery rat
Link:
https://tria.ge/reports/250827-pdgwvsdj91/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Detected Nirsoft tools
NirSoft MailPassView
NirSoft WebBrowserPassView
Remcos
Remcos family
Malware Config
C2 Extraction:
216.9.224.88:15403
216.9.224.88:15402
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/c264bf9b-a146-4985-899d-3d682bf09192
Unpacked files
SH256 hash:
bf5289069b7b3f5c74a18fa352ee8770d00cdce6ed7cbfd4934d5480307806a1
MD5 hash:
c29d321875bf40dc79ccf293c043f4eb
SHA1 hash:
e80b44670ef8c4d10be8e7f70ececff664b76661
Link:
https://www.unpac.me/results/311f94ac-670b-4ea0-8de5-4992e3f25469/
SH256 hash:
179f77c36cfdd9763622be0dd270e860c368d40b839dd124f3fcc65c8a89d6de
MD5 hash:
b25473244feb513eb6c49b8e922d2f8a
SHA1 hash:
2111b544a0996f184a65c01667227d3f4e16f684
Detections:
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
Remcos
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
win_remcos_rat_unpacked
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Create hunting rule
Link:
https://www.unpac.me/results/311f94ac-670b-4ea0-8de5-4992e3f25469/
Parent samples :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 family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/bf5289069b7b/report/overview.html
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:AutoIT_Compiled
Create hunting rule
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.
Rule name:BLOWFISH_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:CP_AllMal_Detector
Create hunting rule
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
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: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:iexplorer_remcos
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_EXE_Packed_MPress
Create hunting rule
Author:ditekSHen
Description:Detects executables built or packed with MPress PE compressor
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. 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:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:nirsoft_v1
Create hunting rule
Author:RandomMalware
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:remcos_
Create hunting rule
Author:Michelle Khalil
Description:This rule detects unpacked remcos malware samples.
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:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:TeslaCryptPackedMalware
Create hunting rule
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.

Malspam

RemcosRAT

Executable exe bf5289069b7b3f5c74a18fa352ee8770d00cdce6ed7cbfd4934d5480307806a1

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/23863/

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