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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 604017830c520afed1e339fec58286d09494b7f63243d4aab8acbcd30fc34cf0. 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: 16


Intelligence 16 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 604017830c520afed1e339fec58286d09494b7f63243d4aab8acbcd30fc34cf0
SHA3-384 hash: d3629dcb60a619930b47564433b718b7bebda718eecb25558bc8bb9e085bd01f7848679203472b1985b781960c5eb7b9
SHA1 hash: 6a33847ae0a957925e2b012623120cde4b6ef356
MD5 hash: 15c632a5bb99baed87837075929d0e6a
humanhash: california-two-foxtrot-asparagus
File name:Supply_RFQ with specifications & requirement_2026050213.xls
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:885'760 bytes
First seen:2026-05-08 09:45:21 UTC
Last seen:Never
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 24576:B+EpoY5bNghsiH5IwsTz8UeeLLLLLLLLLLLLLLLLLLLL/M:NpPgH5IPz8U
TLSH T124150211F941E22AEA110F314FD6C1DA823ABCF2DE16CE473A41731F3EB2BA16D96554
TrID 34.9% (.XLS) Microsoft Excel sheet (32500/1/3)
30.1% (.XLS) Microsoft Excel sheet (alternate) (28000/1/3)
26.3% (.XLS) Microsoft Excel sheet (alternate) (24500/1/2)
8.6% (.) Generic OLE2 / Multistream Compound (8000/1)
Magika xls
Reporter abuse_ch
Tags:RemcosRAT xls

Office OLE Information

This malware samples appears to be an Office document. The following table provides more information about this document using oletools and oledump.

OLE dump

MalwareBazaar was able to identify 18 sections in this file using oledump:

Section IDSection sizeSection name
1114 bytesCompObj
2244 bytesDocumentSummaryInformation
3120200 bytesSummaryInformation
494 bytesMBD007B7864/CompObj
520 bytesMBD007B7864/Ole
632162 bytesMBD007B7864/CONTENTS
799 bytesMBD007B7865/CompObj
8407360 bytesMBD007B7865/Package
9508 bytesMBD007B7866/Ole
10304049 bytesWorkbook
11525 bytes_VBA_PROJECT_CUR/PROJECT
12104 bytes_VBA_PROJECT_CUR/PROJECTwm
13977 bytes_VBA_PROJECT_CUR/VBA/Sheet1
14977 bytes_VBA_PROJECT_CUR/VBA/Sheet2
15977 bytes_VBA_PROJECT_CUR/VBA/Sheet3
16985 bytes_VBA_PROJECT_CUR/VBA/ThisWorkbook
172644 bytes_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
18553 bytes_VBA_PROJECT_CUR/VBA/dir

Intelligence

File Origin
# of uploads :
1
# of downloads :
171
Origin country :
SE SE
Vendor Threat Intelligence
Malware configuration found for:
MSO
Details
MSO
extracted VBA Macros and, if observed, MS-OFORM variables/data are added to the knowledge base for usage in later parsing of the Macros
Link:
https://research.acce.ciphertechsolutions.com/results/8e8a3a02-a672-42e0-a7f7-86ea5da4365e/
Malware family:
n/a
ID:
1
File name:
_604017830c520afed1e339fec58286d09494b7f63243d4aab8acbcd30fc34cf0.xls
Verdict:
No threats detected
Analysis date:
2026-05-08 09:48:07 UTC
Tags:
qrcode
Link:
https://app.any.run/tasks/4eb7a16e-b819-491b-9957-14ea880b6cb0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Legit
File type:
application/vnd.ms-excel
Has a screenshot:
False
Contains macros:
False
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/64866/
Detection(s):
TwinWave.EvilDoc.93TilInfinity.20240412.UNOFFICIAL
Create hunting rule

Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a service
Creating a window
Changing a file
DNS request
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
Creating a process with a hidden window
Connection attempt
Sending a custom TCP request
Launching a process
Creating a file in the %temp% subdirectories
Possible injection to a system process
Connection attempt by exploiting the app vulnerability
Sending an HTTP GET request
Bypassing of proactive protection methods using Windows Management Instrumentation (WMI)
Sending a custom TCP request by exploiting the app vulnerability
Launching a process by exploiting the app vulnerability
Unauthorized injection to a system process
Result
Verdict:
Malicious
File Type:
Legacy Excel File with Macro
Link:
https://app.docguard.net/604017830c520afed1e339fec58286d09494b7f63243d4aab8acbcd30fc34cf0/results/dashboard
Behaviour
SuspiciousRTF detected
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
cve-2017-0199 exploit macros
Link:
https://www.filescan.io/uploads/69fdb0d286e92bda70243f52/reports/40888c96-4f26-4ebe-bb6c-fcb124803f9a/overview
Verdict:
Malicious
Labled as:
CVE-2017-0199
Link:
https://www.hybrid-analysis.com/sample/604017830c520afed1e339fec58286d09494b7f63243d4aab8acbcd30fc34cf0
Label:
Benign
Suspicious Score:
/10
Score Malicious:
%
Score Benign:
1%
Link:
https://www.malware.ai/gui/files/?id=dd345a30-78bc-4391-beeb-a0610205336e
Verdict:
Malicious
File Type:
xls
First seen:
2026-05-07T09:13:00Z UTC
Last seen:
2026-05-09T08:32:00Z UTC
Hits:
~100
Detections:
HEUR:Exploit.MSOffice.CVE-2017-0199.a Trojan-Downloader.Agent.HTTP.C&C PDM:Exploit.Win32.Generic HEUR:Trojan.OLE2.UrcBadur.genw
Link:
https://opentip.kaspersky.com/604017830c520afed1e339fec58286d09494b7f63243d4aab8acbcd30fc34cf0/results?tab=lookup
Result
Threat name:
n/a
Detection:
malicious
Classification:
expl.evad
Score:
64 / 100
Link:
https://www.joesandbox.com/analysis/1910584
Signature
Document exploit detected (process start blacklist hit)
Excel sheet contains many unusual embedded objects
Multi AV Scanner detection for submitted file
Sigma detected: Suspicious Microsoft Office Child Process
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1910584 Sample: Supply_RFQ with specificati... Startdate: 08/05/2026 Architecture: WINDOWS Score: 64 34 us1.roaming1.live.com.akadns.net 2->34 36 teams-mrc-ww-acdcatm.trafficmanager.net 2->36 38 15 other IPs or domains 2->38 46 Multi AV Scanner detection for submitted file 2->46 48 Excel sheet contains many unusual embedded objects 2->48 50 Document exploit detected (process start blacklist hit) 2->50 52 Sigma detected: Suspicious Microsoft Office Child Process 2->52 9 Acrobat.exe 2->9 injected 12 EXCEL.EXE 228 67 2->12         started        16 EXCEL.EXE 2->16         started        signatures3 process4 dnsIp5 54 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 9->54 18 WerFault.exe 3 21 9->18         started        20 WerFault.exe 9->20         started        40 instaba.se 216.198.79.1, 443, 49726 NBS11696US United States 12->40 42 part-0012.t-0009.t-msedge.net 13.107.246.40, 443, 49700, 49702 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 12->42 44 2 other IPs or domains 12->44 32 Supply_RFQ with sp...26050213.xls (copy), Composite 12->32 dropped 22 Acrobat.exe 47 12->22         started        24 splwow64.exe 1 12->24         started        26 mshta.exe 12->26         started        file6 signatures7 process8 process9 28 AcroCEF.exe 99 22->28         started        process10 30 AcroCEF.exe 7 28->30         started       
Score:
100%
Verdict:
Malware
File Type:
OFFICE
Link:
https://malprob.io/report/604017830c520afed1e339fec58286d09494b7f63243d4aab8acbcd30fc34cf0
Verdict:
Malware
YARA:
7 match(es)
Tags:
Corrupted Office Document
Link:
https://app.malva.re/file/15c632a5bb99baed87837075929d0e6a
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/604017830c520afed1e339fec58286d09494b7f63243d4aab8acbcd30fc34cf0/
Verdict:
Malicious
Threat:
Trojan.MSOffice.UrcBadur
Link:
https://tip.neiki.dev/file/604017830c520afed1e339fec58286d09494b7f63243d4aab8acbcd30fc34cf0
Threat name:
Win32.Trojan.Ravartar
Create hunting rule
Status:
Malicious
First seen:
2026-05-08 00:58:04 UTC
File Type:
Document
Extracted files:
68
AV detection:
8 of 24 (33.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mbabpaymkifp5updhh7mlaug2ckjjn7wgjb5jkvyvs6ngd6djtya._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
persistence ransomware
Link:
https://tria.ge/reports/260508-ltp1maaw2p/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Uses Task Scheduler COM API
Uses Volume Shadow Copy WMI provider
Uses Volume Shadow Copy service COM API
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/604017830c52/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/604017830c520afed1e339fec58286d09494b7f63243d4aab8acbcd30fc34cf0

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:informational_win_ole_protected
Create hunting rule
Author:Jeff White (karttoon@gmail.com) @noottrak
Description:Identify OLE Project protection within documents.

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/64866/

Comments