MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3149fe2f4eb25004b7b0a3dadbeb306b87c18c85cb64f284de930e5709088196. 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: 21


Intelligence 21 IOCs YARA 34 File information Comments

SHA256 hash: 3149fe2f4eb25004b7b0a3dadbeb306b87c18c85cb64f284de930e5709088196
SHA3-384 hash: 3333b735b04b0a8cc0762d835fd9a395441e6106c82575f21bc5d89e3b7d6b509ae360d1c918db6df58193b6f721689e
SHA1 hash: 8b3748682a795bb5278742575d2aad1590ad8be2
MD5 hash: c0f2510a1814034c49709de1373cfe74
humanhash: alabama-beryllium-music-alanine
File name:RFQ-Z197456 (1).exe
Download: download sample
Signature RemcosRAT
File size:1'340'928 bytes
First seen:2025-08-14 11:21:40 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 3d95adbf13bbe79dc24dccb401c12091 (881 x AgentTesla, 737 x FormBook, 236 x SnakeKeylogger)
ssdeep 24576:Ytb20pkaCqT5TBWgNQ7aMkjBr4Yj6OUXhrim6A:hVg5tQ7aMkLDU35
TLSH T1EC55D01273DD8361C3B25273BA65B741BEBF782506B1F96B2FD8093DE820162521E673
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
dhash icon aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter abuse_ch
Tags:exe RAT RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
95
Origin country :
SE SE
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
RFQ-Z1974561.exe
Verdict:
Malicious activity
Analysis date:
2025-08-14 11:25:37 UTC
Tags:
auto-startup autoit remcos

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
97.4%
Tags:
autorun autoit emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a file
Creating a process from a recently created file
Launching a process
Сreating synchronization primitives
Connection attempt
Sending a custom TCP request
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
adaptive-context autoit compiled-script fingerprint keylogger microsoft_visual_cc obfuscated packed packed packer_detected
Result
Threat name:
Detection:
malicious
Classification:
phis.troj.spyw.expl.evad
Score:
100 / 100
Signature
Binary is likely a compiled AutoIt script file
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Detected Remcos RAT
Drops VBS files to the startup folder
Found malware configuration
Initial sample is a PE file and has a suspicious name
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Drops script at startup location
Sigma detected: Remcos
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1756847 Sample: RFQ-Z197456 (1).exe Startdate: 14/08/2025 Architecture: WINDOWS Score: 100 38 geoplugin.net 2->38 56 Suricata IDS alerts for network traffic 2->56 58 Found malware configuration 2->58 60 Malicious sample detected (through community Yara rule) 2->60 62 12 other signatures 2->62 9 RFQ-Z197456 (1).exe 6 2->9         started        13 wscript.exe 1 2->13         started        signatures3 process4 file5 34 C:\Users\user\AppData\Local\...\finity.exe, PE32 9->34 dropped 70 Binary is likely a compiled AutoIt script file 9->70 15 finity.exe 3 9->15         started        72 Windows Scripting host queries suspicious COM object (likely to drop second stage) 13->72 19 finity.exe 2 13->19         started        signatures6 process7 file8 36 C:\Users\user\AppData\Roaming\...\finity.vbs, data 15->36 dropped 44 Multi AV Scanner detection for dropped file 15->44 46 Binary is likely a compiled AutoIt script file 15->46 48 Drops VBS files to the startup folder 15->48 50 Switches to a custom stack to bypass stack traces 15->50 21 svchost.exe 4 13 15->21         started        52 Writes to foreign memory regions 19->52 54 Maps a DLL or memory area into another process 19->54 25 svchost.exe 19->25         started        signatures9 process10 dnsIp11 40 216.9.224.88, 15403, 49691, 49692 ATT-INTERNET4US Reserved 21->40 42 geoplugin.net 178.237.33.50, 49693, 80 ATOM86-ASATOM86NL Netherlands 21->42 64 System process connects to network (likely due to code injection or exploit) 21->64 66 Detected Remcos RAT 21->66 68 Maps a DLL or memory area into another process 21->68 27 svchost.exe 1 21->27         started        30 svchost.exe 1 21->30         started        32 svchost.exe 2 21->32         started        signatures12 process13 signatures14 74 Tries to steal Instant Messenger accounts or passwords 27->74 76 Tries to harvest and steal browser information (history, passwords, etc) 27->76 78 Tries to steal Mail credentials (via file / registry access) 30->78
Verdict:
Malware
YARA:
7 match(es)
Tags:
AutoIt Decompiled Executable PDB Path PE (Portable Executable) Suspect Win 32 Exe x86
Threat name:
Win32.Backdoor.Remcos
Status:
Malicious
First seen:
2025-08-14 05:05:10 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
20 of 23 (86.96%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
Similar samples:
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:remotehost collection discovery rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
AutoIT Executable
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Drops startup file
Executes dropped EXE
Detected Nirsoft tools
NirSoft MailPassView
NirSoft WebBrowserPassView
Remcos
Remcos family
Malware Config
C2 Extraction:
216.9.224.88:15403
216.9.224.88:15402
Unpacked files
SH256 hash:
3149fe2f4eb25004b7b0a3dadbeb306b87c18c85cb64f284de930e5709088196
MD5 hash:
c0f2510a1814034c49709de1373cfe74
SHA1 hash:
8b3748682a795bb5278742575d2aad1590ad8be2
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
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
Author:phoul (@phoul)
Description:Look for Blowfish constants
Rule name:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
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: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:iexplorer_remcos
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_EXE_Packed_MPress
Author:ditekSHen
Description:Detects executables built or packed with MPress PE compressor
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
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
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
Author:ditekSHen
Description:Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003)
Rule name:MD5_Constants
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_stackstrings
Author:Willi Ballenthin
Rule name:NET
Author:malware-lu
Rule name:nirsoft_v1
Author:RandomMalware
Rule name:pe_detect_tls_callbacks
Rule name:RANSOMWARE
Author:ToroGuitar
Rule name:Remcos
Author:kevoreilly
Description:Remcos Payload
Rule name:remcos_
Author:Michelle Khalil
Description:This rule detects unpacked remcos malware samples.
Rule name:REMCOS_RAT_variants
Rule name:Remcos_unpacked_PulseIntel
Author:PulseIntel
Description:Remcos Payload
Rule name:RIPEMD160_Constants
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:TeslaCryptPackedMalware
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_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.
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:YahLover
Author:Kevin Falcoz
Description:YahLover
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.

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