MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 581839491509f10044d68d1c5695a489a317a332517d7b4d640fea83096bad81. 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: 12


Intelligence 12 IOCs 1 YARA 27 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 581839491509f10044d68d1c5695a489a317a332517d7b4d640fea83096bad81
SHA3-384 hash: 0f8b635a806029a8bd51f2e934f1da3b1c71fcbce5a9fcdc4832ac8ba3394f855ab556121b3810a876f19fd08f39589f
SHA1 hash: faab47ed8786dbc6de1a4643299d653b5a70241a
MD5 hash: 507aaca5eb24aca449daab9a463305f3
humanhash: texas-victor-enemy-four
File name:1749025723165cc355a837f6c7095fdd444d48f3d8037.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'759'232 bytes
First seen:2025-06-04 08:41:25 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash cf1e18505402af0e1cee1f76e8f4c6e1 (2 x RemcosRAT, 1 x AveMariaRAT)
ssdeep 49152:erTf/oCuiYQ2q0kPqDWpfKGUTL6rsurc:errtuiYQ2qrNpf+Tl
TLSH T16685E0A5B280FC33C0131A74DC1F83D9B429BA101B34B68B6AE59E4D1E357ADB976353
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 d0c8c8c8fcc4d0dc (2 x RemcosRAT, 1 x AveMariaRAT)
Reporter abuse_ch
Tags:exe RAT RemcosRAT


Avatar
abuse_ch
RemcosRAT C2:
196.251.69.226:3421

Indicators Of Compromise (IOCs)

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

IOCThreatFox Reference
196.251.69.226:3421 https://threatfox.abuse.ch/ioc/1541098/

Intelligence

File Origin
# of uploads :
1
# of downloads :
530
Origin country :
NL NL
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/7239/
Detection(s):
Win.Trojan.Modiloader-10042434-0
Create hunting rule

Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=684008338bd5d68a12e4f952
Tags:
delphi emotet cobalt
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
DNS request
Сreating synchronization primitives
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context borland_delphi fingerprint keylogger packed packed packer_detected
Link:
https://www.filescan.io/uploads/684006f3fd02ed5e059773ff/reports/2c9d25cd-fb8c-40f5-9eb3-d701c1080724/overview
Verdict:
Malicious
Labled as:
TrojanDownloader/ModiLoader.a
Link:
https://www.hybrid-analysis.com/sample/581839491509f10044d68d1c5695a489a317a332517d7b4d640fea83096bad81
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/05afc0d4-c122-4e1c-a922-d9485d083be6
Result
Threat name:
Remcos, DBatLoader, XWorm
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1705695
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Allocates many large memory junks
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Connects to a pastebin service (likely for C&C)
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
Detected Remcos RAT
Early bird code injection technique detected
Found malware configuration
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Queues an APC in another process (thread injection)
Sample uses string decryption to hide its real strings
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Remcos
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious Creation with Colorcpl
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Uses threadpools to delay analysis
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected DBatLoader
Yara detected Remcos RAT
Yara detected UAC Bypass using CMSTP
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1705695 Sample: 1749025723165cc355a837f6c70... Startdate: 04/06/2025 Architecture: WINDOWS Score: 100 44 pastebin.com 2->44 46 www.sermansilian.com 2->46 48 geoplugin.net 2->48 64 Suricata IDS alerts for network traffic 2->64 66 Found malware configuration 2->66 68 Malicious sample detected (through community Yara rule) 2->68 72 17 other signatures 2->72 10 1749025723165cc355a837f6c7095fdd444d48f3d8037.exe 2->10         started        13 svchost.exe 1 1 2->13         started        signatures3 70 Connects to a pastebin service (likely for C&C) 44->70 process4 dnsIp5 82 Early bird code injection technique detected 10->82 84 Allocates memory in foreign processes 10->84 86 Allocates many large memory junks 10->86 88 2 other signatures 10->88 16 colorcpl.exe 7 16 10->16         started        54 127.0.0.1 unknown unknown 13->54 signatures6 process7 dnsIp8 40 www.sermansilian.com 196.251.69.226, 3421, 49681, 49684 Web4AfricaZA Seychelles 16->40 42 geoplugin.net 178.237.33.50, 49685, 80 ATOM86-ASATOM86NL Netherlands 16->42 38 C:\Users\user\AppData\...\lgkUx3j5uza2pRo.exe, PE32 16->38 dropped 56 Contains functionality to bypass UAC (CMSTPLUA) 16->56 58 Detected Remcos RAT 16->58 60 Contains functionalty to change the wallpaper 16->60 62 3 other signatures 16->62 21 lgkUx3j5uza2pRo.exe 4 16->21         started        24 svchost.exe 16->24         started        26 wscript.exe 16->26         started        file9 signatures10 process11 signatures12 74 Writes to foreign memory regions 21->74 76 Allocates memory in foreign processes 21->76 78 Adds a directory exclusion to Windows Defender 21->78 80 2 other signatures 21->80 28 RegSvcs.exe 15 2 21->28         started        32 powershell.exe 23 21->32         started        process13 dnsIp14 50 96.9.226.214, 49692, 6571 AMANAHA-NEWCA United States 28->50 52 pastebin.com 104.22.68.199, 443, 49691 CLOUDFLARENETUS United States 28->52 90 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 28->90 92 Loading BitLocker PowerShell Module 32->92 34 WmiPrvSE.exe 32->34         started        36 conhost.exe 32->36         started        signatures15 process16
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/581839491509f10044d68d1c5695a489a317a332517d7b4d640fea83096bad81
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/581839491509f10044d68d1c5695a489a317a332517d7b4d640fea83096bad81/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2025-06-04 08:42:26 UTC
File Type:
PE (Exe)
Extracted files:
44
AV detection:
32 of 38 (84.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=lamdssivbhyqargwruofnfnergrrpizskf6xwtleb7vigcllvwaq._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
dbatloader
Create hunting rule
Similar samples:
error
RemcosRAT
Result
Malware family:
n/a
Score:
  9/10
Tags:
collection discovery
Link:
https://tria.ge/reports/250604-kl7p2ahj2t/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
NSIS installer
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Windows directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Blocklisted process makes network request
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Executes dropped EXE
Detected Nirsoft tools
NirSoft MailPassView
Verdict:
Malicious
Tags:
Win.Trojan.Modiloader-10042434-0 remcos
YARA:
n/a
Link:
https://app.threat.zone/submission/bad077ac-472f-43f6-9171-0ea786804881
Unpacked files
SH256 hash:
581839491509f10044d68d1c5695a489a317a332517d7b4d640fea83096bad81
MD5 hash:
507aaca5eb24aca449daab9a463305f3
SHA1 hash:
faab47ed8786dbc6de1a4643299d653b5a70241a
Link:
https://www.unpac.me/results/9a6279bf-8a40-4257-9977-615f19b3b6fc/
Malware family:
MailPassView
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/581839491509/report/overview.html
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
Create hunting rule
Author:malware-lu
Rule name:Borland
Create hunting rule
Author:malware-lu
Rule name:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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_EXE_Packed_MPress
Create hunting rule
Author:ditekSHen
Description:Detects executables built or packed with MPress PE compressor
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:pe_detect_tls_callbacks
Create hunting rule
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:Remcos_unpacked_PulseIntel
Create hunting rule
Author:PulseIntel
Description:Remcos Payload
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
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:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:TeslaCryptPackedMalware
Create hunting rule
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.remcos.
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/7239/

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
MULTIMEDIA_APICan Play Multimediawinmm.dll::mciSendStringA
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::EmptyClipboard
user32.dll::FindWindowA
user32.dll::OpenClipboard
user32.dll::PeekMessageA

Comments