MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b64c0c5a1ac3eef38bf27a2ade490c8e22aa837e5a7c15f9129de867f4bdcf72. 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: 14


Maldoc score: 1706


Intelligence 14 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b64c0c5a1ac3eef38bf27a2ade490c8e22aa837e5a7c15f9129de867f4bdcf72
SHA3-384 hash: c2e898164742ef022918a90446f0b7722a39e01d05aead57aed8d0d6eb9442a302e8ade95f059607584420b3247a285f
SHA1 hash: dea509560a95cde9336067781229df39995bf633
MD5 hash: 9ca5778a26cf8aa431c1dd4824e3d771
humanhash: item-eighteen-salami-white
File name:REQ Quotation Order 0771.xls
Download: download sample
Signature RemcosRAT
Create hunting rule
File size:759'296 bytes
First seen:2026-07-13 17:19:35 UTC
Last seen:Never
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 12288:y+32VP3E2Mb6sbsmHARAef4CmJsrP+S0CjrzWzVW05hRFaNrUrK5OBUn6OtSBNgD:yNVP3E2Mb6tz4vOXSZVeYUP6NPmInb
TLSH T122F42305FAD6CB1BE1E65436ADD4C0AA0028BC227F5A938B3020B70D543AF7B77D5B95
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: 1706
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 15 sections in this file using oledump:

Section IDSection sizeSection name
1114 bytesCompObj
2244 bytesDocumentSummaryInformation
3200 bytesSummaryInformation
499 bytesMBD0002A04F/CompObj
5596835 bytesMBD0002A04F/Package
6482 bytesMBD0002A050/Ole
7141920 bytesWorkbook
8527 bytes_VBA_PROJECT_CUR/PROJECT
9104 bytes_VBA_PROJECT_CUR/PROJECTwm
10977 bytes_VBA_PROJECT_CUR/VBA/Sheet1
11977 bytes_VBA_PROJECT_CUR/VBA/Sheet2
12977 bytes_VBA_PROJECT_CUR/VBA/Sheet3
13985 bytes_VBA_PROJECT_CUR/VBA/ThisWorkbook
142644 bytes_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
15553 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 :
146
Origin country :
SE SE
Vendor Threat Intelligence
Malware configuration found for:
MSO
Details
Link:
https://research.acce.ciphertechsolutions.com/results/de7a1430-e2cd-4714-9283-4b51066075dd/
Verdict:
Legit
File type:
application/vnd.ms-excel
Has a screenshot:
False
Contains macros:
False
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/74464/
Detection(s):
SecuriteInfo.com.Exploit.CVE-2017-0199-3.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.DOCXRSTRGOOD.HTTP_.210304B64.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a551e763d3a766c4391b4b1
Tags:
trojan shell agent
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Deleting a recently created file
Connection attempt by exploiting the app vulnerability
Sending an HTTP GET request
Forced shutdown of a system process
Result
Verdict:
Malicious
File Type:
Legacy Excel File with Macro
Link:
https://app.docguard.net/b64c0c5a1ac3eef38bf27a2ade490c8e22aa837e5a7c15f9129de867f4bdcf72/results/dashboard
Payload URLs
URL
File name
http://0000030605710027/aHR0cDovLzE5OC4yMy4xNDQuMjMvMTI5L29vL2Jpc3NiZXRuZXRvcmtpbmdtYXJrZXR0aGluZ3Njb21pbmdmb3IuaHRh.php
Embedded Ole
Behaviour
SuspiciousRTF detected
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
macros
Link:
https://www.filescan.io/uploads/6a551e89c2ef55dd5c675b7c/reports/0ee184af-363b-42cc-8dcd-3459a3a5693e/overview
Verdict:
Malicious
Labled as:
CVE-2017-0199
Link:
https://www.hybrid-analysis.com/sample/b64c0c5a1ac3eef38bf27a2ade490c8e22aa837e5a7c15f9129de867f4bdcf72
Label:
Malicious
Suspicious Score:
10/10
Score Malicious:
1%
Score Benign:
0%
Link:
https://www.malware.ai/gui/files/?id=6092b0c2-a311-4950-ab68-057781f05c71
Verdict:
Malicious
File Type:
xls
First seen:
2026-07-13T01:00:00Z UTC
Last seen:
2026-07-15T15:35:00Z UTC
Hits:
~10000
Link:
https://opentip.kaspersky.com/b64c0c5a1ac3eef38bf27a2ade490c8e22aa837e5a7c15f9129de867f4bdcf72/results?tab=lookup
Result
Threat name:
n/a
Detection:
malicious
Classification:
expl
Score:
56 / 100
Link:
https://www.joesandbox.com/analysis/1941722
Signature
Document exploit detected (process start blacklist hit)
Excel sheet contains many unusual embedded objects
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
OFFICE
Link:
https://malprob.io/report/b64c0c5a1ac3eef38bf27a2ade490c8e22aa837e5a7c15f9129de867f4bdcf72
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Office Document
Link:
https://app.malva.re/file/9ca5778a26cf8aa431c1dd4824e3d771
Detection:
remcos
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b64c0c5a1ac3eef38bf27a2ade490c8e22aa837e5a7c15f9129de867f4bdcf72/
Threat name:
Win32.Trojan.Ravartar
Create hunting rule
Status:
Malicious
First seen:
2026-07-13 03:57:49 UTC
File Type:
Document
Extracted files:
48
AV detection:
8 of 24 (33.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wzgaywq2ypxphc7spivn4simryrkva36lj6bl6istxugp5f5z5za._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
persistence ransomware
Link:
https://tria.ge/reports/260713-vwt7ssew6t/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Uses Volume Shadow Copy WMI provider
Uses Volume Shadow Copy service COM API
Process spawned unexpected child process
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/b64c0c5a1ac3eef38bf27a2ade490c8e22aa837e5a7c15f9129de867f4bdcf72

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:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:VECT_Ransomware
Create hunting rule
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.
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/74464/

Comments