MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b1f3463b315c793237aeaed1b8cbeef60aabe31366749d9979ff7501c0476e1. 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: 7


Intelligence 7 IOCs YARA 26 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4b1f3463b315c793237aeaed1b8cbeef60aabe31366749d9979ff7501c0476e1
SHA3-384 hash: f196300a775c41e0e1e17ad2e969ee70bb939207924904c0e20d09855fa86eb0f299ec87574605bc0679f939293e06b1
SHA1 hash: e5f20ba25021a6c9b7c63f161ba03d2245a3719a
MD5 hash: 3f1fcfb5cd759d7e41afbda134fee3a4
humanhash: washington-neptune-mars-cardinal
File name:Original DHL Documents PDF.r01
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:845'353 bytes
First seen:2025-08-27 13:21:16 UTC
Last seen:Never
File type: r01
MIME type:application/x-rar
ssdeep 12288:oSH5VLDV69AsPgyeNKSe1UzsoMdydn4Jj093s9ibk1GAZFTC873r00Cr2a/kxtM:fH5NRrxe1VIij2897c6FTt7bwotM
TLSH T12A0523DF4282BBEAEED4349C264BC1163C10990E4CE867E78D1E65DC3E357A9E329714
TrID 61.5% (.RAR) RAR compressed archive (v5.0) (8000/1)
38.4% (.RAR) RAR compressed archive (gen) (5000/1)
Magika rar
Reporter cocaman
Tags:DHL r01 RemcosRAT


Avatar
cocaman
Malicious email (T1566.001)
From: ""DHL Express" <support@dhl.com>" (likely spoofed)
Received: "from mail.oecgroup.live (mail.oecgroup.live [152.114.194.150]) "
Date: "18 Aug 2025 08:38:29 +0200"
Subject: "DHL Shipment Notification: AWB Ref 5321985"
Attachment: "Original DHL Documents PDF.r01"

Intelligence

File Origin
# of uploads :
1
# of downloads :
61
Origin country :
CH CH
File Archive Information

This file archive contains 1 file(s), sorted by their relevance:

File name:AWB Ref 5321985 PDF.exe
File size:1'373'696 bytes
SHA256 hash: d0b781684adc737fb5f167e009be024b3a0ecc63759df783e13bfd44b645aa74
MD5 hash: 998e5318219e95c847b909493086830b
MIME type:application/x-dosexec
Signature RemcosRAT
Vendor Threat Intelligence
Verdict:
Malicious
Score:
91.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68a2d7798fd55a79c528c7ce
Tags:
autoit emotet
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug autoit compiled-script evasive fingerprint keylogger microsoft_visual_cc packed threat
Link:
https://www.filescan.io/uploads/68af06651c81c34281d54a70/reports/b24b9bcc-d907-4ae1-8a8e-816668cc13d8/overview
Verdict:
Malicious
Labled as:
Trojan.Downloader
Link:
https://www.hybrid-analysis.com/sample/4b1f3463b315c793237aeaed1b8cbeef60aabe31366749d9979ff7501c0476e1
Verdict:
Malicious
File Type:
rar
First seen:
2025-08-18T11:08:00Z UTC
Last seen:
2025-08-18T11:08:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/4b1f3463b315c793237aeaed1b8cbeef60aabe31366749d9979ff7501c0476e1/results?tab=lookup
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4b1f3463b315c793237aeaed1b8cbeef60aabe31366749d9979ff7501c0476e1/
Threat name:
Win32.Trojan.AutoitInject
Create hunting rule
Status:
Malicious
First seen:
2025-08-18 07:55:54 UTC
File Type:
Binary (Archive)
Extracted files:
29
AV detection:
26 of 38 (68.42%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jmptiy5tcxdzgi325lwrxdf655qkvprrgztutwmxt73vahaeo3qq._file
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/4b1f3463b315c793237aeaed1b8cbeef60aabe31366749d9979ff7501c0476e1

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:AutoIT_Compiled
Create hunting rule
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.
Rule name:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
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_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_
Create hunting rule
Author:Michelle Khalil
Description:This rule detects unpacked remcos malware samples.
Rule name:REMCOS_RAT_variants
Create hunting rule
Rule name:Remcos_unpacked_PulseIntel
Create hunting rule
Author:PulseIntel
Description:Remcos Payload
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

r01 4b1f3463b315c793237aeaed1b8cbeef60aabe31366749d9979ff7501c0476e1

(this sample)

RemcosRAT

Executable exe d0b781684adc737fb5f167e009be024b3a0ecc63759df783e13bfd44b645aa74

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 d0b781684adc737fb5f167e009be024b3a0ecc63759df783e13bfd44b645aa74
  
Dropping
RemcosRAT
  
Dropping
MD5 998e5318219e95c847b909493086830b

Comments