MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e3f94e84769fc8d25b081f44226b89c332f7ffe21564939aa0be868a4ca2d7a5. 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: 17


Intelligence 17 IOCs YARA 19 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e3f94e84769fc8d25b081f44226b89c332f7ffe21564939aa0be868a4ca2d7a5
SHA3-384 hash: 450933b69884e4501212b65883971b2e9ea9076079560347900bc1da212be32245781dd4925e2e9b9be481b6edb26d21
SHA1 hash: e8f1039543a4db4e3e102bf3378076074bfe4e00
MD5 hash: 04320c30e2446ea733b50bd58b580828
humanhash: cat-asparagus-nuts-missouri
File name:REQUEST FOR QUOTATION.exe
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'020'416 bytes
First seen:2025-06-02 21:21:18 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:vjMtUbZrkrz/mUBsKED6gle84Db9I3xSiEZ6ZMY+MI/n8UF2Sq/VJ:bRlrkrzuUmKELe8N3x7EZ6ZM7MIUUF2S
Threatray 4'162 similar samples on MalwareBazaar
TLSH T14A25E1093926BF03C6B64BF80A55D13417F85EDEA01EE25B4EE6BCDF34A5F241880A57
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
Reporter smica83
Tags:exe HUN RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
460
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
REQUEST FOR QUOTATION.exe
Verdict:
Malicious activity
Analysis date:
2025-06-02 21:24:04 UTC
Tags:
remcos rat netreactor
Link:
https://app.any.run/tasks/f60ce868-276e-4294-bc5c-8539a65bfb30

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Remcos
Create hunting rule
Link:
https://www.capesandbox.com/analysis/6914/
Detection(s):
SecuriteInfo.com.Variant.Genie8DN.405.335.4257.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=683df6a88bd5d68a12e3e153
Tags:
backdoor spawn shell
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
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 %temp% directory
Launching a process
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
DNS request
Connecting to a non-recommended domain
Connection attempt
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/683e1611fd02ed5e05945007/reports/ef978c7e-8297-48af-8e19-b86b77fa1db8/overview
Verdict:
Malicious
Labled as:
Genie8DN.Generic
Link:
https://www.hybrid-analysis.com/sample/e3f94e84769fc8d25b081f44226b89c332f7ffe21564939aa0be868a4ca2d7a5
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/d81220db-08ba-490f-9b75-fe879d563461
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1704369
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
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
Initial sample is a PE file and has a suspicious name
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 dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Remcos
Sigma detected: Scheduled temp file as task from temp location
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Uses threadpools to delay analysis
Yara detected AntiVM3
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1704369 Sample: REQUEST FOR QUOTATION.exe Startdate: 02/06/2025 Architecture: WINDOWS Score: 100 46 airtoncomeplast.duckdns.org 2->46 50 Found malware configuration 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 Sigma detected: Scheduled temp file as task from temp location 2->54 58 12 other signatures 2->58 8 REQUEST FOR QUOTATION.exe 7 2->8         started        12 yseezfI.exe 5 2->12         started        signatures3 56 Uses dynamic DNS services 46->56 process4 file5 38 C:\Users\user\AppData\Roaming\yseezfI.exe, PE32 8->38 dropped 40 C:\Users\user\...\yseezfI.exe:Zone.Identifier, ASCII 8->40 dropped 42 C:\Users\user\AppData\Local\...\tmpB237.tmp, XML 8->42 dropped 44 C:\Users\...\REQUEST FOR QUOTATION.exe.log, ASCII 8->44 dropped 60 Adds a directory exclusion to Windows Defender 8->60 62 Injects a PE file into a foreign processes 8->62 14 REQUEST FOR QUOTATION.exe 2 8->14         started        18 powershell.exe 23 8->18         started        20 powershell.exe 23 8->20         started        22 schtasks.exe 1 8->22         started        64 Multi AV Scanner detection for dropped file 12->64 66 Contains functionalty to change the wallpaper 12->66 68 Contains functionality to steal Chrome passwords or cookies 12->68 70 4 other signatures 12->70 24 yseezfI.exe 12->24         started        26 schtasks.exe 1 12->26         started        signatures6 process7 dnsIp8 48 airtoncomeplast.duckdns.org 194.59.31.39, 49692, 49693, 49694 COMBAHTONcombahtonGmbHDE Germany 14->48 72 Detected Remcos RAT 14->72 74 Loading BitLocker PowerShell Module 18->74 28 WmiPrvSE.exe 18->28         started        30 conhost.exe 18->30         started        32 conhost.exe 20->32         started        34 conhost.exe 22->34         started        36 conhost.exe 26->36         started        signatures9 process10
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/e3f94e84769fc8d25b081f44226b89c332f7ffe21564939aa0be868a4ca2d7a5
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e3f94e84769fc8d25b081f44226b89c332f7ffe21564939aa0be868a4ca2d7a5/
Threat name:
ByteCode-MSIL.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2025-06-02 08:37:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
21
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=4p4u5bdwt7enewyid5cce24jymzpp77ccvsjhgvax2diutfc26sq._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
remcos
Create hunting rule
Similar samples:
0163886674b564ff8973f86966aa5d625ca41f262b04f05b1bc4adf77b3d30ba
RemcosRAT
70029840a2c10f707e5b6bee6a48c4c7fb1fc3efe79215d7bb01c5e2967848cb
RemcosRAT
dc8e0752010c76c6815c5631eb656e8e8f179be1a794c5f6679e5072d6ffe496
RemcosRAT
+ 4'152 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost discovery execution rat
Link:
https://tria.ge/reports/250602-z7gs3aej5y/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Remcos
Remcos family
Malware Config
C2 Extraction:
airtoncomeplast.duckdns.org:7822
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/924ca814-5533-40a8-bf75-5c93ad15b6cb
Unpacked files
SH256 hash:
e3f94e84769fc8d25b081f44226b89c332f7ffe21564939aa0be868a4ca2d7a5
MD5 hash:
04320c30e2446ea733b50bd58b580828
SHA1 hash:
e8f1039543a4db4e3e102bf3378076074bfe4e00
Link:
https://www.unpac.me/results/e39076ea-a708-48db-880b-734acc76ff28/
SH256 hash:
a01dd993290c7b91b20ca6a7e446bf4edabc2c85c832b4b824f396788f7f5a02
MD5 hash:
17e4960eabeb73f49f12ac8736b408e4
SHA1 hash:
2f56f8828137dc6e47d77d7e52541a748f092ba6
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/e39076ea-a708-48db-880b-734acc76ff28/
Parent samples :
f636541370318e8253c2eaf75c41e3cfe01b53e750a76c59bf17a894136de3c1
e3f94e84769fc8d25b081f44226b89c332f7ffe21564939aa0be868a4ca2d7a5
d73ad9264e737d95a1cdeed413d7015a18e2f1f679ebf56a2973c97ead7b1447
83885d6469d809b0709f82c75605005fed02c3cbdde2a8d8e74589608d45b40b
24d845c266dc1d2fdd1af6df8cc3c206d2b570ac6df249147664310b13a28371
SH256 hash:
ad7a63b1487dcd4ff7071e9bfee4999e0e0c33c3f7ad16b35659d0910036230e
MD5 hash:
3150061eccc784ac1ab4835c5b80992a
SHA1 hash:
65f76a62dd904692c95ff5621c00a3af0fb286a0
Detections:
win_remcos_w0
Create hunting rule
win_remcos_auto
Create hunting rule
Remcos
Create hunting rule
malware_windows_remcos_rat
Create hunting rule
win_remcos_rat_unpacked
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Link:
https://www.unpac.me/results/e39076ea-a708-48db-880b-734acc76ff28/
Parent samples :
dc8e0752010c76c6815c5631eb656e8e8f179be1a794c5f6679e5072d6ffe496
e3f94e84769fc8d25b081f44226b89c332f7ffe21564939aa0be868a4ca2d7a5
24d845c266dc1d2fdd1af6df8cc3c206d2b570ac6df249147664310b13a28371
SH256 hash:
7bca28e0ec51b512e951898eecfc405aba1c4f543a1d736055ba764087a6e0f0
MD5 hash:
c8c56e3261dd6973ae1bc5bb93d15ae3
SHA1 hash:
9b028e75c899eafac9d07169bc5276f896779232
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/e39076ea-a708-48db-880b-734acc76ff28/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/e3f94e84769f/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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:iexplorer_remcos
Create hunting rule
Author:iam-py-test
Description:Detect iexplorer being taken over by Remcos
Rule name:INDICATOR_SUSPICIOUS_EXE_UACBypass_EventViewer
Create hunting rule
Author:ditekSHen
Description:detects Windows exceutables potentially bypassing UAC using eventvwr.exe
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:RANSOMWARE
Create hunting rule
Author:ToroGuitar
Rule name:Remcos
Create hunting rule
Author:kevoreilly
Description:Remcos Payload
Rule name:REMCOS_RAT_variants
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)
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/6914/

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 (HIGH_ENTROPY_VA)high

Comments