MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 671c01c2dd70bc8f367cae2b177ef2b65f7ec0e88da4e812fb89f09f3e48b9c4. 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: 13


Maldoc score: 882


Intelligence 13 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 671c01c2dd70bc8f367cae2b177ef2b65f7ec0e88da4e812fb89f09f3e48b9c4
SHA3-384 hash: e24bcb76c49cb06c3789a27447d3dbf98b5e100a7d32d441a07eeeb78d4a79f4cd7e2277e0fae1a54d0f4bdde0d16632
SHA1 hash: 9b5306908cc7dff9aa83955ec1d77dd1abd387ed
MD5 hash: 13693ae0e177bbf3896b5450ee763387
humanhash: chicken-twelve-ten-black
File name:MT#2605-8.xls
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:209'408 bytes
First seen:2026-08-06 06:04:32 UTC
Last seen:Never
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 6144:8Z+RwPONXoRjZ7SezmfDlavx+aCChyKPd7jpl4Lpl1r1mO15FD:fKPdPpErFD
TLSH T15824BE12FF45D465E94457300BE3B1C2D629BC2B9E1A4E0F2386773EAD77A90C472E1A
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 id
Maldoc score: 882
Application name is Microsoft Excel
File Format is MS Excel 97-2003
Container Format is OLE
Office document is in encrypted
Office document contains VBA Macros
OLE dump

MalwareBazaar was able to identify 17 sections in this file using oledump:

Section IDSection sizeSection name
1114 bytesCompObj
2244 bytesDocumentSummaryInformation
3200 bytesSummaryInformation
4114 bytesMBD00268CB8/CompObj
5220 bytesMBD00268CB8/DocumentSummaryInformation
6132 bytesMBD00268CB8/SummaryInformation
771677 bytesMBD00268CB8/Workbook
81046 bytesMBD00268CB9/Ole
9120278 bytesWorkbook
10523 bytes_VBA_PROJECT_CUR/PROJECT
11104 bytes_VBA_PROJECT_CUR/PROJECTwm
12977 bytes_VBA_PROJECT_CUR/VBA/Sheet1
13977 bytes_VBA_PROJECT_CUR/VBA/Sheet2
14977 bytes_VBA_PROJECT_CUR/VBA/Sheet3
15985 bytes_VBA_PROJECT_CUR/VBA/ThisWorkbook
162644 bytes_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
17552 bytes_VBA_PROJECT_CUR/VBA/dir
OLE vba

MalwareBazaar was able to extract and deobfuscate VBA script(s) the following information from OLE objects embedded in this file using olevba:

TypeKeywordDescription
SuspiciousHex StringsHex-encoded strings were detected, may beused to obfuscate strings (option --decode tosee all)

Intelligence

File Origin
# of uploads :
1
# of downloads :
144
Origin country :
SE SE
Vendor Threat Intelligence
Malware configuration found for:
MSO
Details
Link:
https://research.acce.ciphertechsolutions.com/results/26ac10d4-869a-48d0-9a6f-299a09a2ae76/
Malware family:
n/a
ID:
1
File name:
xls
Verdict:
No threats detected
Analysis date:
2026-08-06 06:21:14 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/90cfbf3d-8ff6-4ee7-b967-9965734906b2

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/79006/
Detection(s):
SecuriteInfo.com.Exploit.CVE-2017-0199-3.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.93TilInfinity.20240412.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
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
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/671c01c2dd70bc8f367cae2b177ef2b65f7ec0e88da4e812fb89f09f3e48b9c4/results/dashboard
Payload URLs
URL
File name
http://0000000033002360111/33/alison.comtagcloud-computingutm_source=bing&utm_medium=cpc&utm_campaigsoi.html?id==533607792&utm_content=1351302511710659&utm_term=kwd-2336256051805637:loc-90&msclkid
Embedded Ole
Behaviour
SuspiciousRTF detected
Verdict:
Unknown
Threat level:
  0/10
Confidence:
100%
Tags:
evasive macros
Link:
https://www.filescan.io/uploads/6a742440795093a91fbd3443/reports/d7b0f760-5972-41fd-af5d-aac4a67d77d6/overview
Verdict:
Malicious
Labled as:
CVE-2017-0199
Link:
https://www.hybrid-analysis.com/sample/671c01c2dd70bc8f367cae2b177ef2b65f7ec0e88da4e812fb89f09f3e48b9c4
Label:
Malicious
Suspicious Score:
10/10
Score Malicious:
1%
Score Benign:
0%
Link:
https://www.malware.ai/gui/files/?id=639ef4cb-c7d5-4b83-b4c7-370eacd3ae59
Verdict:
Malicious
File Type:
xls
First seen:
2026-08-06T01:33:00Z UTC
Last seen:
2026-08-07T04:04:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/671c01c2dd70bc8f367cae2b177ef2b65f7ec0e88da4e812fb89f09f3e48b9c4/results?tab=lookup
Result
Threat name:
n/a
Detection:
malicious
Classification:
n/a
Score:
48 / 100
Link:
https://www.joesandbox.com/analysis/1953125
Signature
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
OFFICE
Link:
https://malprob.io/report/671c01c2dd70bc8f367cae2b177ef2b65f7ec0e88da4e812fb89f09f3e48b9c4
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Office Document
Link:
https://app.malva.re/file/13693ae0e177bbf3896b5450ee763387
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/671c01c2dd70bc8f367cae2b177ef2b65f7ec0e88da4e812fb89f09f3e48b9c4/
Threat name:
Win32.Trojan.Ravartar
Create hunting rule
Status:
Malicious
First seen:
2026-08-06 06:05:53 UTC
File Type:
Document
Extracted files:
25
AV detection:
14 of 37 (37.84%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=m4oadqw5oc6i6nt4vyvro7xswzpx5qhirwsoqex3rhyj6psixhca._file
Result
Malware family:
n/a
Score:
  1/10
Tags:
persistence ransomware
Link:
https://tria.ge/reports/260806-gs3g4sem5y/
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
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/671c01c2dd70bc8f367cae2b177ef2b65f7ec0e88da4e812fb89f09f3e48b9c4

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.
Rule name:Qbot
Create hunting rule
Author:Dhanunjaya
Description:Yara Rule to Detect Qbot
Rule name:XLS_STRINGS
Create hunting rule
Author:somedieyoungZZ
Description:Detect Strings targeting Bangladesh

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/79006/

Comments