MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 4e3c3570d344cbd5cbe17694c8fcb740935539e2c8376ebb60f9fea6c6b30003. 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
| SHA256 hash: | 4e3c3570d344cbd5cbe17694c8fcb740935539e2c8376ebb60f9fea6c6b30003 |
|---|---|
| SHA3-384 hash: | dbfa8ffe0233bbf94177538a95324857cc23ebfc1fd2fa46ec7a39a069cbc07e916235cf1323626ecaad679c276e2960 |
| SHA1 hash: | 6686392ae7f604395a22e358504d2b10d7c7c346 |
| MD5 hash: | f6c3ea6db9f03e8eb05ad58cdc56bb90 |
| humanhash: | sad-asparagus-earth-quiet |
| File name: | 4e3c3570d344cbd5cbe17694c8fcb740935539e2c8376ebb60f9fea6c6b30003 |
| Download: | download sample |
| Signature | RemcosRAT |
| File size: | 506'880 bytes |
| First seen: | 2025-10-22 14:49:38 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 78a3bdf3c5b9bd3972e77fa90dce8f2d (22 x RemcosRAT) |
| ssdeep | 12288:qN9WLGVGUYcvqvvCNQzvCZQBm+sPZ66Sw:qN9sGV5YYqzvCZQBmtZ1S |
| Threatray | 1'635 similar samples on MalwareBazaar |
| TLSH | T185B49D01B6D2C1B2D57654300D26E775DEBCBD202836997BA3DA0D57FD70180AB3ABB2 |
| 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 |  JAMESWT_WT |
| Tags: | 91-92-241-175 exe RemcosRAT |
Intelligence
File Origin
# of uploads :
1
# of downloads :
125
Origin country :
ITVendor Threat Intelligence
Malware family:
remcos
ID:
1
File name:
4e3c3570d344cbd5cbe17694c8fcb740935539e2c8376ebb60f9fea6c6b30003
Verdict:
Malicious activity
Analysis date:
2025-10-22 14:51:22 UTC
Tags:
rat remcos remote
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Detection(s):
Verdict:
Malicious
Score:
99.9%
Tags:
downloader dropper remcos virus
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
Reading critical registry keys
Launching a service
Changing a file
Forced shutdown of a system process
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
anti-debug cmd config-extracted crypto evasive exploit explorer fingerprint keylogger lolbin microsoft_visual_cc packed rat rat remcos remcos rundll32 windows
Verdict:
Malicious
Labled as:
Dacic.A9349469.A.Generic
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-10-22T11:56:00Z UTC
Last seen:
2025-10-22T22:33:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Win32.Remcos.gen Trojan-PSW.Win32.Stealer.sb Trojan-PSW.Win32.Greedy.sb Trojan-Dropper.Win32.Injector PDM:Trojan.Win32.Generic
Malware family:
REMCOS
Verdict:
Malicious
Score:
100%
Verdict:
Malware
File Type:
PE
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PDB Path PE (Portable Executable) PE File Layout Win 32 Exe x86
Detection:
remcos
Verdict:
Malicious
Threat:
Family.REMCOS
Threat name:
Win32.Backdoor.Remcos
Status:
Malicious
First seen:
2025-10-22 05:08:55 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
24 of 24 (100.00%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
remcos
Similar samples:
+ 1'625 additional samples on MalwareBazaar
Result
Malware family:
remcos
Score:
10/10
Tags:
family:remcos botnet:remotehost collection discovery
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
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
Malware Config
C2 Extraction:
91.92.241.175:9385
Verdict:
Malicious
Tags:
rat remcos Win.Trojan.Remcos-9841897-0
YARA:
malware_windows_remcos_rat REMCOS_RAT_variants Remcos_Payload win_remcos_rat_unpacked Windows_Trojan_Remcos_b296e965 Remcos
Unpacked files
SH256 hash:
4e3c3570d344cbd5cbe17694c8fcb740935539e2c8376ebb60f9fea6c6b30003
MD5 hash:
f6c3ea6db9f03e8eb05ad58cdc56bb90
SHA1 hash:
6686392ae7f604395a22e358504d2b10d7c7c346
Detections:
win_remcos_w0
win_remcos_auto
Remcos
Malware family:
Remcos
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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_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_EXE_Packed_MPress |
|---|---|
| Author: | ditekSHen |
| Description: | Detects executables built or packed with MPress PE compressor |
| 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: | kevoreilly |
| Description: | Remcos Payload |
| Rule name: | REMCOS_RAT_variants |
|---|
| 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: | 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: | 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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