MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 409b531641718cc8dc421f51d208a7c907df426986bff09f01b4cfadf2d3b763. 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: 15


Intelligence 15 IOCs YARA 30 File information Comments

SHA256 hash: 409b531641718cc8dc421f51d208a7c907df426986bff09f01b4cfadf2d3b763
SHA3-384 hash: 0457e31ed6a5f3997bee3eff8445c4621d62076a4f7cfab038b810da678637ffca0aa25cc3441dc296e8eae2363d3e98
SHA1 hash: 02deb63d3ef382da6654e29cac5a0e1561741218
MD5 hash: 8bd7e096006b6c7e91fee17860040ee3
humanhash: vegan-indigo-orange-carpet
File name:409b531641718cc8dc421f51d208a7c907df426986bff09f01b4cfadf2d3b763
Download: download sample
Signature RemcosRAT
File size:1'590'784 bytes
First seen:2025-06-11 08:17:36 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash da2ff03d800b80f30f9a0595b3e80bfc (5 x RemcosRAT, 1 x NetWire)
ssdeep 49152:n+Vr+dQ2q0Eq8Yc5JuubxV0WhDLJnakg8FH:nvQ2qG4uubxxhX9x
Threatray 168 similar samples on MalwareBazaar
TLSH T18575CF6EB3A1BC32C113D674CC5F87FCB8197A232924BF466AD56F081A3C75CA466253
TrID 53.5% (.EXE) InstallShield setup (43053/19/16)
17.6% (.EXE) Win32 Executable Delphi generic (14182/79/4)
13.0% (.EXE) Win64 Executable (generic) (10522/11/4)
5.6% (.EXE) Win32 Executable (generic) (4504/4/1)
2.5% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
dhash icon f8f8d0f0c0d0c0c0 (9 x RemcosRAT, 6 x DBatLoader)
Reporter JAMESWT_WT
Tags:exe irritaspec-xyz-parsvana-grp-biz RemcosRAT

Intelligence


File Origin
# of uploads :
1
# of downloads :
440
Origin country :
IT IT
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
AV_ Avviso di pagamento-password(zdQqq7PL).zip
Verdict:
Malicious activity
Analysis date:
2025-06-10 10:14:54 UTC
Tags:
attachments attc-arch arch-scr

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Tags:
autorun cobalt delphi emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Creating a window
Creating a file
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a process from a recently created file
Connection attempt to an infection source
DNS request
Connection attempt
Sending an HTTP GET request
Query of malicious DNS domain
Sending a TCP request to an infection source
Unauthorized injection to a system process
Result
Threat name:
Remcos, DBatLoader
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Signature
Allocates many large memory junks
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Contains functionality to bypass UAC (CMSTPLUA)
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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 a thread in another existing process (thread injection)
Detected Remcos RAT
Drops PE files with a suspicious file extension
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: DLL Search Order Hijackig Via Additional Space in Path
Sigma detected: Remcos
Sigma detected: Suspicious Creation with Colorcpl
Suricata IDS alerts for network traffic
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected DBatLoader
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1711998 Sample: jLdEe1kGuc.exe Startdate: 11/06/2025 Architecture: WINDOWS Score: 100 39 irritaspec.xyz.parsvana-grp.biz 2->39 41 geoplugin.net 2->41 49 Suricata IDS alerts for network traffic 2->49 51 Found malware configuration 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 9 other signatures 2->55 8 jLdEe1kGuc.exe 8 2->8         started        12 rundll32.exe 3 2->12         started        signatures3 process4 file5 37 C:\Users\user\Links\Vbilczeo.PIF, PE32 8->37 dropped 57 Drops PE files with a suspicious file extension 8->57 59 Writes to foreign memory regions 8->59 61 Allocates memory in foreign processes 8->61 63 4 other signatures 8->63 14 colorcpl.exe 6 14 8->14         started        18 cmd.exe 1 8->18         started        20 cmd.exe 1 8->20         started        22 cmd.exe 1 8->22         started        24 Vbilczeo.PIF 12->24         started        signatures6 process7 dnsIp8 43 geoplugin.net 178.237.33.50, 49721, 80 ATOM86-ASATOM86NL Netherlands 14->43 45 irritaspec.xyz.parsvana-grp.biz 198.23.227.212, 2404, 49720 AS-COLOCROSSINGUS United States 14->45 65 Contains functionality to bypass UAC (CMSTPLUA) 14->65 67 Detected Remcos RAT 14->67 69 Contains functionalty to change the wallpaper 14->69 79 3 other signatures 14->79 71 Uses schtasks.exe or at.exe to add and modify task schedules 18->71 26 conhost.exe 18->26         started        28 conhost.exe 20->28         started        30 schtasks.exe 1 20->30         started        32 conhost.exe 22->32         started        73 Multi AV Scanner detection for dropped file 24->73 75 Writes to foreign memory regions 24->75 77 Allocates memory in foreign processes 24->77 81 3 other signatures 24->81 34 SndVol.exe 24->34         started        signatures9 process10 signatures11 47 Detected Remcos RAT 34->47
Threat name:
Win32.Backdoor.FormBook
Status:
Malicious
First seen:
2025-06-10 17:37:03 UTC
File Type:
PE (Exe)
Extracted files:
42
AV detection:
26 of 38 (68.42%)
Threat level:
  5/5
Result
Malware family:
modiloader
Score:
  10/10
Tags:
family:modiloader discovery trojan
Behaviour
Runs ping.exe
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Executes dropped EXE
ModiLoader Second Stage
ModiLoader, DBatLoader
Modiloader family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
409b531641718cc8dc421f51d208a7c907df426986bff09f01b4cfadf2d3b763
MD5 hash:
8bd7e096006b6c7e91fee17860040ee3
SHA1 hash:
02deb63d3ef382da6654e29cac5a0e1561741218
Malware family:
DBatLoader
Verdict:
Malicious
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:BobSoftMiniDelphiBoBBobSoft
Author:malware-lu
Rule name:Borland
Author:malware-lu
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:DebuggerCheck__RemoteAPI
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Disable_Defender
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
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:shellcode
Author:nex
Description:Matched shellcode byte patterns
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:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:ThreadControl__Context
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:Typical_Malware_String_Transforms
Author:Florian Roth (Nextron Systems)
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:Typical_Malware_String_Transforms_RID3473
Author:Florian Roth
Description:Detects typical strings in a reversed or otherwise modified form
Reference:Internal Research
Rule name:Windows_Generic_Threat_d7b57912
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.

BLint


The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and Threadskernel32.dll::CloseHandle
kernel32.dll::CreateThread
WIN_BASE_APIUses Win Base APIkernel32.dll::LoadLibraryExA
kernel32.dll::LoadLibraryA
kernel32.dll::GetStartupInfoA
kernel32.dll::GetDiskFreeSpaceA
kernel32.dll::GetCommandLineA
WIN_BASE_IO_APICan Create Fileskernel32.dll::CreateFileA
kernel32.dll::FindFirstFileA
version.dll::GetFileVersionInfoSizeA
version.dll::GetFileVersionInfoA
WIN_REG_APICan Manipulate Windows Registryadvapi32.dll::RegOpenKeyExA
advapi32.dll::RegQueryValueExA
WIN_USER_APIPerforms GUI Actionsuser32.dll::ActivateKeyboardLayout
user32.dll::CreateMenu
user32.dll::FindWindowA
user32.dll::PeekMessageA
user32.dll::PeekMessageW
user32.dll::CreateWindowExA

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