MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d7dc4d1b725344b2430eb8647f4e5e16120187b0117c7c95d622b9c8f31b57ff. 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 26 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d7dc4d1b725344b2430eb8647f4e5e16120187b0117c7c95d622b9c8f31b57ff
SHA3-384 hash: 03b968e3316ca21da880424485eac8ebe4c4d04782882610d72bb11192ae6025d3045b98d01325f75b8790b47e59cead
SHA1 hash: 446269c22be55d6538e5b5c6c78bf840ece89ae5
MD5 hash: 4a4e6894ff7504108c4dcc292bbe8d2c
humanhash: mike-uranus-nuts-sierra
File name:CESSB Tender Paperwork PDF.cmd
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:1'340'928 bytes
First seen:2025-07-21 23:47:41 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 24576:XRT6kmQqe5XQZkYFRAv6uuU2ZBUoCXos3ztlQMAkn/63dsOjag6UU1K1BS+xI:GQqeBQZNFi6PUoypXosDzQFkn6d+dUU9
TLSH T1DC5533907F965875E19CB4BCD0E671C8132CE4EF7302EBAABD854A5264B82E55703F83
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 threatcat_ch
Tags:exe RemcosRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
53
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
CESSB Tender Paperwork PDF.cmd
Verdict:
Malicious activity
Analysis date:
2025-07-21 23:50:22 UTC
Tags:
rat remcos auto-startup remote
Link:
https://app.any.run/tasks/36926545-043d-400a-a42c-3a9c7660ce03

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/16190/
Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=687ed1c784b37dd61ef06ed4
Tags:
autorun spawn small hype
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Launching a process
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Labled as:
Trojan.Mardom.MN.Generic
Link:
https://www.hybrid-analysis.com/sample/d7dc4d1b725344b2430eb8647f4e5e16120187b0117c7c95d622b9c8f31b57ff
Malware family:
REMCOS
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c4b1dfa4-6717-4c8d-b346-b937d8f21715
Result
Threat name:
Remcos
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1741657
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
Command shell drops VBS files
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
Drops VBS files to the startup folder
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 submitted file
Performs DNS queries to domains with low reputation
Sigma detected: Drops script at startup location
Sigma detected: Remcos
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected Remcos RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1741657 Sample: CESSB Tender Paperwork PDF.... Startdate: 22/07/2025 Architecture: WINDOWS Score: 100 29 luciphas.xyz 2->29 31 geoplugin.net 2->31 37 Suricata IDS alerts for network traffic 2->37 39 Found malware configuration 2->39 41 Malicious sample detected (through community Yara rule) 2->41 45 12 other signatures 2->45 8 CESSB Tender Paperwork PDF.cmd.exe 5 2->8         started        12 wscript.exe 1 2->12         started        signatures3 43 Performs DNS queries to domains with low reputation 29->43 process4 file5 23 C:\Users\user\AppData\Roaming\TypId.exe, PE32 8->23 dropped 25 C:\Users\user\...\TypId.exe:Zone.Identifier, ASCII 8->25 dropped 27 C:\Users\user\AppData\Roaming\...\TypId.vbs, ASCII 8->27 dropped 49 Command shell drops VBS files 8->49 51 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 8->51 53 Writes to foreign memory regions 8->53 55 Injects a PE file into a foreign processes 8->55 14 InstallUtil.exe 2 13 8->14         started        57 Windows Scripting host queries suspicious COM object (likely to drop second stage) 12->57 18 TypId.exe 2 12->18         started        signatures6 process7 dnsIp8 33 luciphas.xyz 216.250.250.224, 49718, 5909 AS-TIERP-19019US United States 14->33 35 geoplugin.net 178.237.33.50, 49719, 80 ATOM86-ASATOM86NL Netherlands 14->35 59 Detected Remcos RAT 14->59 61 Contains functionalty to change the wallpaper 14->61 63 Contains functionality to steal Chrome passwords or cookies 14->63 71 3 other signatures 14->71 65 Antivirus detection for dropped file 18->65 67 Writes to foreign memory regions 18->67 69 Injects a PE file into a foreign processes 18->69 20 InstallUtil.exe 18->20         started        signatures9 process10 signatures11 47 Detected Remcos RAT 20->47
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/d7dc4d1b725344b2430eb8647f4e5e16120187b0117c7c95d622b9c8f31b57ff
Verdict:
inconclusive
YARA:
12 match(es)
Tags:
.Net Executable PE (Portable Executable) SOS: 0.44 Win 32 Exe x86
Link:
https://app.malva.re/file/4a4e6894ff7504108c4dcc292bbe8d2c
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/d7dc4d1b725344b2430eb8647f4e5e16120187b0117c7c95d622b9c8f31b57ff/
Verdict:
Malicious
Threat:
Backdoor.MSIL.Remcos
Link:
https://tip.neiki.dev/file/d7dc4d1b725344b2430eb8647f4e5e16120187b0117c7c95d622b9c8f31b57ff
Threat name:
ByteCode-MSIL.Trojan.Mardom
Create hunting rule
Status:
Malicious
First seen:
2025-07-22 01:52:00 UTC
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=27oe2g3skncleqyoxbsh6ts6cyjadb5qcf6hzfowek44r4y3k77q._file
Verdict:
malicious
Label(s):
sorano
Create hunting rule
remcos
Create hunting rule
Similar samples:
error
RemcosRAT
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos botnet:remotehost discovery rat
Link:
https://tria.ge/reports/250721-3tkjks1ms2/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Drops startup file
Remcos
Remcos family
Malware Config
C2 Extraction:
luciphas.xyz:5909
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/63b77f19-ea1a-4dd7-b1cf-0a7c673e46a9
Unpacked files
SH256 hash:
d7dc4d1b725344b2430eb8647f4e5e16120187b0117c7c95d622b9c8f31b57ff
MD5 hash:
4a4e6894ff7504108c4dcc292bbe8d2c
SHA1 hash:
446269c22be55d6538e5b5c6c78bf840ece89ae5
Link:
https://www.unpac.me/results/08b057c4-542b-433d-8cf7-0806e39216ba/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/d7dc4d1b725344b2430eb8647f4e5e16120187b0117c7c95d622b9c8f31b57ff

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:FreddyBearDropper
Create hunting rule
Author:Dwarozh Hoshiar
Description:Freddy Bear Dropper is dropping a malware through base63 encoded powershell scrip.
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_
Create hunting rule
Author:Michelle Khalil
Description:This rule detects unpacked remcos malware samples.
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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: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.

Malspam

RemcosRAT

Executable exe d7dc4d1b725344b2430eb8647f4e5e16120187b0117c7c95d622b9c8f31b57ff

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/16190/

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

Comments