MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4da2425b6d3677ff80e52dd880a6f718257ad3c15deb565cd947b6f3aa05a9eb. 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: 11


Intelligence 11 IOCs 1 YARA 29 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4da2425b6d3677ff80e52dd880a6f718257ad3c15deb565cd947b6f3aa05a9eb
SHA3-384 hash: cc260391bc158d39e0ef2dd91de1f36c1580bbcf58c4d096b4de8ea8255186a266f8d31a78f665215754ec05453f7f6b
SHA1 hash: 49cbf6c36dd5906bd73df3193d0f824e1664fbc0
MD5 hash: 78b70273fc590fab5bd01c8ea21363be
humanhash: charlie-happy-washington-early
File name:4da2425b6d3677ff80e52dd880a6f718257ad3c15deb565cd947b6f3aa05a9eb
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:4'742'144 bytes
First seen:2026-08-10 14:37:14 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 307f7e81c25ffd921ae92e385bccaf0d (1 x AsyncRAT, 1 x RemcosRAT)
ssdeep 98304:iXLDad9OX3peer4RENS0WkIwHyEo1q8lSJBQwLOSnY3hO+WJMvJrfpMa/RE6GUkH:cLDavQ3pew4RtRgyH1q8o23hzWJ+h/Pi
TLSH T18D26AEB1A3C4E5A5C41EDA34D730E233C1727D224A75908E198AF706EFB69527BFA701
TrID 33.1% (.EXE) Win64 Executable (generic) (6522/11/2)
25.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
10.4% (.ICL) Windows Icons Library (generic) (2059/9)
10.3% (.EXE) OS/2 Executable (generic) (2029/13)
10.1% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
dhash icon d4c4c4d8ccd4f0cc (245 x AgentTesla, 65 x Loki, 42 x Formbook)
Reporter adrian__luca
Tags:exe RemcosRAT

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
217.60.195.236:2404 https://threatfox.abuse.ch/ioc/1871773/

Intelligence

File Origin
# of uploads :
1
# of downloads :
49
Origin country :
HU HU
Vendor Threat Intelligence
No detections
Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a process with a hidden window
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the Windows subdirectories
Creating a service
Launching a service
Loading a system driver
Creating a file
Launching a process
Сreating synchronization primitives
Connection attempt to an infection source
Deleting a recently created file
Reading critical registry keys
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a window
Enabling autorun for a service
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Forced shutdown of a system process
Query of malicious DNS domain
Sending a TCP request to an infection source
Stealing user critical data
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
crypto microsoft_visual_cc overlay packed reconnaissance xworm
Link:
https://www.filescan.io/uploads/6a79e2665ca504a8496e2f89/reports/a272c582-a315-40b8-94f5-c0b0e30d2251/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/4da2425b6d3677ff80e52dd880a6f718257ad3c15deb565cd947b6f3aa05a9eb
Verdict:
Malicious
File Type:
exe x64
First seen:
2026-07-21T09:02:00Z UTC
Last seen:
2026-08-02T16:34:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/4da2425b6d3677ff80e52dd880a6f718257ad3c15deb565cd947b6f3aa05a9eb/results?tab=lookup
Gathering data
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4da2425b6d3677ff80e52dd880a6f718257ad3c15deb565cd947b6f3aa05a9eb
Gathering data
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4da2425b6d3677ff80e52dd880a6f718257ad3c15deb565cd947b6f3aa05a9eb/
Threat name:
Win64.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2026-07-21 15:42:48 UTC
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jwreew3ngz377ahffxmibjxxdasxvu6blxvvmxgzi63phkqfvhvq._file
Verdict:
malicious
Label(s):
Remcos
Create hunting rule
Link:
https://reports.threatray.com/ef1349e6-3bb1-4c85-a7b2-5c5ac6cd50b4
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:remcos botnet:remotehost adware collection discovery execution persistence rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/260810-r7a2hsbm81/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: LoadsDriver
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
Enumerates physical storage devices
System Location Discovery: System Language Discovery
SmartAssembly .NET packer
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks computer location settings
Executes dropped EXE
Command and Scripting Interpreter: PowerShell
Family: Formbook
Family: Remcos
Formbook payload
Suricata alert: REMCOS RAT Malware Inbound C2 Communication
Suricata alert: REMCOS RAT Malware Outbound C2 Communication
Malware Config
C2 Extraction:
www.xmmtbx.com:2404
www.xmmtbxbackup.com:2404
www.xmmtbxbackup1.com:2404
www.xmmtbxbackup2.com:2404
Unpacked files
SH256 hash:
4da2425b6d3677ff80e52dd880a6f718257ad3c15deb565cd947b6f3aa05a9eb
MD5 hash:
78b70273fc590fab5bd01c8ea21363be
SHA1 hash:
49cbf6c36dd5906bd73df3193d0f824e1664fbc0
Link:
https://www.unpac.me/results/b04c62d7-ab65-4d49-b1ed-7e50eb0a6fe3/
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
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:DebuggerCheck__MemoryWorkingSet
Create hunting rule
Author:Fernando Mercês
Description:Anti-debug process memory working set size check
Reference:http://www.gironsec.com/blog/2015/06/anti-debugger-trick-quicky/
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:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. 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:Jupyter_infostealer
Create hunting rule
Author:CD_R0M_
Description:Rule for Jupyter Infostealer/Solarmarker malware from september 2021-December 2022
Rule name:MAL_Trigon_Dropper
Create hunting rule
Author:jaszzz
Description:Trigon multi-stage malicious dropper - process injection, keylogging, screenshot capture
Reference:URL|trigon
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_detect_tls_callbacks
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:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
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:TH_AntiVM_MassHunt_Win_Malware_2026_CYFARE
Create hunting rule
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
Create hunting rule
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
Create hunting rule
Author:Elastic Security
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.

Cape
Cape
https://www.capesandbox.com/analysis/79947/

Comments