MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 daa6591561e413c1fd5d29bfcd15224730a56c96099a7cb05f6efa40da312f2b. 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 1 YARA 23 File information Comments

SHA256 hash: daa6591561e413c1fd5d29bfcd15224730a56c96099a7cb05f6efa40da312f2b
SHA3-384 hash: 4326802e2f44a1db8a7e36a2b7cc06a38710cc85ec1664d23f92e18a82357854aa5b9a4caa0b81f1d1f799951bbc2968
SHA1 hash: 96b8c3e17dc988dc1fe2a4aabc2208f72d991f63
MD5 hash: 5622576226361442af15cd98f7429ee0
humanhash: island-minnesota-december-indigo
File name:daa6591561e413c1fd5d29bfcd15224730a56c96099a7.exe
Download: download sample
Signature RemcosRAT
File size:527'872 bytes
First seen:2026-04-06 20:40:27 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 737fc4be4f9f7d7c06c790667c9f7669 (29 x RemcosRAT)
ssdeep 6144:TXEE+QEZJvHVdFjl0WGYB+cvbWvpB+qADnN8XIniCrVSMXcvOsAORZ0AXiBceU:DENlHV9FGeDWv3jADnyYiCNrsPZ0K
Threatray 2'224 similar samples on MalwareBazaar
TLSH T175B4B001B6F2C172D97664300935E774DEBCBD201836997BA3D61D9BFD30190AB39AB2
TrID 29.5% (.EXE) Win64 Executable (generic) (6522/11/2)
22.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
20.3% (.EXE) Win32 Executable (generic) (4504/4/1)
9.1% (.EXE) OS/2 Executable (generic) (2029/13)
9.0% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
dhash icon c4d48eaa8ad4d4f8 (1'146 x RemcosRAT, 1 x Worm.Ramnit, 1 x Vjw0rm)
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
45.151.81.138:24052

Indicators Of Compromise (IOCs)


Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
45.151.81.138:24052 https://threatfox.abuse.ch/ioc/1781961/

Intelligence


File Origin
# of uploads :
1
# of downloads :
171
Origin country :
NL NL
Vendor Threat Intelligence
Gathering data
Malware family:
ID:
1
File name:
daa6591561e413c1fd5d29bfcd15224730a56c96099a7cb05f6efa40da312f2b.exe
Verdict:
Malicious activity
Analysis date:
2026-04-06 20:25:27 UTC
Tags:
remcos rat auto-reg

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

Behaviour
Сreating synchronization primitives
Creating a file in the %AppData% subdirectories
Creating a process from a recently created file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Connection attempt to an infection source
Sending a TCP request to an infection source
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 rescoms rundll32 runonce windows
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-04-06T16:12:00Z UTC
Last seen:
2026-04-07T09:48:00Z UTC
Hits:
~10
Detections:
HEUR:Backdoor.Win32.Remcos.gen Backdoor.Win32.Remcos.sb PDM:Trojan.Win32.Generic Backdoor.Remcos.TCP.C&C
Result
Threat name:
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to register a low level keyboard hook
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal Firefox passwords or cookies
Contains functionalty to change the wallpaper
Creates autostart registry keys with suspicious names
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
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 32 Exe x86
Threat name:
Win32.Backdoor.Remcos
Status:
Malicious
First seen:
2026-04-06 20:25:37 UTC
File Type:
PE (Exe)
Extracted files:
8
AV detection:
21 of 23 (91.30%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:remcos botnet:24052 discovery persistence
Behaviour
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Malware Config
C2 Extraction:
45.151.81.138:24052
Unpacked files
SH256 hash:
daa6591561e413c1fd5d29bfcd15224730a56c96099a7cb05f6efa40da312f2b
MD5 hash:
5622576226361442af15cd98f7429ee0
SHA1 hash:
96b8c3e17dc988dc1fe2a4aabc2208f72d991f63
Detections:
win_remcos_auto 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_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:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Rule name:Remcos_unpacked_PulseIntel
Author:PulseIntel
Description:Remcos Payload
Rule name:Sus_All_Windows_PE_Malware
Author:DiegoAnalytics
Description:Detects Windows PE malware of all types, avoids non-executables like .html
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:TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE
Author:CYFARE
Description:Detects Windows malware employing anti-VM / anti-sandbox evasion techniques across VMware, VirtualBox, Hyper-V, QEMU, Xen, and generic sandbox environments
Reference:https://cyfare.net/
Rule name:VECT_Ransomware
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.
Rule name:Windows_Trojan_Remcos_921ef449
Author:Elastic Security
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.

Comments