MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 41d9c5aac992d96eb6d450451161896b2563a33dac8af859f0e52821ec543945. 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: 18


Intelligence 18 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 41d9c5aac992d96eb6d450451161896b2563a33dac8af859f0e52821ec543945
SHA3-384 hash: 24ed9e808729163927399d3a40e8c2da9b9c65f8895e1cbef813c998f0c75e4c987dc7df2162cc100a0d8776c9131ac6
SHA1 hash: b4c386a18814fbebe6922a3385519eda9b874b6d
MD5 hash: ef38f8f30b42dedea2e20acb74171278
humanhash: bulldog-uncle-hotel-table
File name:Booking-36365119.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:118'904 bytes
First seen:2025-06-18 17:43:15 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 3072:wMdgrZnfLa1Dv9cwFijWqaGIsPkLyHn2/Y:7dgw7cwY5rHT
TLSH T1F9C3E147766DD1A2CA448F7FC8EB440047B8F7A261C7CA1BA45B039F5E033E59AC961E
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
dhash icon ae53d212dbc8ccca (2 x SnakeKeylogger, 2 x AgentTesla, 1 x RemcosRAT)
Reporter JAMESWT_WT
Tags:booking exe RemcosRAT Spam-ITA

Intelligence

File Origin
# of uploads :
1
# of downloads :
512
Origin country :
IT IT
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Booking-36365119.7z
Verdict:
Malicious activity
Analysis date:
2025-06-18 17:56:00 UTC
Tags:
arch-exec
Link:
https://app.any.run/tasks/10cb48bf-24a9-4a3a-ac7e-f327a3081ab9

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/10044/
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.32548.17747.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6853dc85d1262bb4773b1952
Tags:
injection virus micro
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Connection attempt
Sending an HTTP GET request
Launching a process
Searching for synchronization primitives
Creating a file in the %temp% directory
Creating a process from a recently created file
Setting a keyboard event handler
Using the Windows Management Instrumentation requests
Creating a file
DNS request
Sending a custom TCP request
Reading critical registry keys
Creating a window
Unauthorized injection to a recently created process
Connection attempt to an infection source
Stealing user critical data
Sending a TCP request to an infection source
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
expired-cert invalid-signature net_reactor obfuscated packed packed packer_detected signed
Link:
https://www.filescan.io/uploads/6852fae2cf2af15711113f96/reports/042ab899-97cc-41af-b581-65aaba991342/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/41d9c5aac992d96eb6d450451161896b2563a33dac8af859f0e52821ec543945
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/83568f5a-50f3-4daa-87b2-bcd35af178b1
Result
Threat name:
Remcos, AgentTesla
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1717857
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to log keystrokes (.Net Source)
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
Delayed program exit found
Detected Remcos RAT
Found malware configuration
Installs a global keyboard hook
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
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: Remcos
Suricata IDS alerts for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1717857 Sample: Booking-36365119.exe Startdate: 18/06/2025 Architecture: WINDOWS Score: 100 28 api.ipify.org 2->28 54 Suricata IDS alerts for network traffic 2->54 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 11 other signatures 2->60 8 Booking-36365119.exe 15 2 2->8         started        signatures3 process4 dnsIp5 30 144.172.116.121, 49694, 80 QUICKPACKETUS United States 8->30 62 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->62 12 InstallUtil.exe 1 5 8->12         started        signatures6 process7 file8 24 C:\Users\user\AppData\...\FB_463D.tmp.exe, PE32 12->24 dropped 26 C:\Users\user\AppData\...\FB_4513.tmp.exe, PE32 12->26 dropped 15 FB_4513.tmp.exe 2 2 12->15         started        20 FB_463D.tmp.exe 14 2 12->20         started        process9 dnsIp10 32 178.215.236.251, 2727, 49695, 49698 LVLT-10753US Germany 15->32 22 C:\ProgramData\remcos\logs.dat, data 15->22 dropped 38 Antivirus detection for dropped file 15->38 40 Multi AV Scanner detection for dropped file 15->40 42 Detected Remcos RAT 15->42 50 6 other signatures 15->50 34 162.254.34.31, 49697, 587 VIVIDHOSTINGUS United States 20->34 36 api.ipify.org 104.26.12.205, 443, 49696 CLOUDFLARENETUS United States 20->36 44 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 20->44 46 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 20->46 48 Tries to steal Mail credentials (via file / registry access) 20->48 52 2 other signatures 20->52 file11 signatures12
Score:
97%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/41d9c5aac992d96eb6d450451161896b2563a33dac8af859f0e52821ec543945
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/41d9c5aac992d96eb6d450451161896b2563a33dac8af859f0e52821ec543945/
Verdict:
Malicious
Link:
https://tip.neiki.dev/file/41d9c5aac992d96eb6d450451161896b2563a33dac8af859f0e52821ec543945
Threat name:
Win32.Trojan.Egairtigado
Create hunting rule
Status:
Malicious
First seen:
2025-06-18 14:08:51 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
25 of 36 (69.44%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ihm4lkwjslmw5nwukbcrcymjnmswhiz5vsfpqwpq4uucd3cuhfcq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
remcos
Create hunting rule
Similar samples:
error
RemcosRAT
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla family:remcos discovery keylogger rat spyware stealer trojan
Link:
https://tria.ge/reports/250618-wa3sgstzaz/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Looks up external IP address via web service
Executes dropped EXE
Reads WinSCP keys stored on the system
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Agenttesla family
Remcos
Remcos family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/cc946cf7-35cc-45aa-a309-7ab1f14bce35
Unpacked files
SH256 hash:
41d9c5aac992d96eb6d450451161896b2563a33dac8af859f0e52821ec543945
MD5 hash:
ef38f8f30b42dedea2e20acb74171278
SHA1 hash:
b4c386a18814fbebe6922a3385519eda9b874b6d
Detections:
PureCrypter_Stage1
Create hunting rule
Link:
https://www.unpac.me/results/d435cfa9-0912-46e9-9c22-b852af91016f/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/41d9c5aac992/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
0.90
Link:
https://yomi.yoroi.company/submissions/41d9c5aac992d96eb6d450451161896b2563a33dac8af859f0e52821ec543945

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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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)

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/10044/

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_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

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