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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a3f9ad64f22eca94d40b53a77665dbe5dcc6439bb6dfc610318517ecc0e9e3fd. 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: 15


Intelligence 15 IOCs YARA 3 File information Comments 1

SHA256 hash: a3f9ad64f22eca94d40b53a77665dbe5dcc6439bb6dfc610318517ecc0e9e3fd
SHA3-384 hash: 37ad115f3eaf4ace6941c3ccc9e319f6b29214fb9426c419156cdc01fff72b8989a012535f10cca8aab24b642f6e78d0
SHA1 hash: 32e278fc66ff1a61f2907a7e8c68ecb2e35b6566
MD5 hash: e5a1e728566e715a47df3c66c2c45b43
humanhash: bakerloo-apart-louisiana-leopard
File name:RFQ# 51239.xls
Download: download sample
Signature RemcosRAT
File size:495'616 bytes
First seen:2026-04-20 12:29:27 UTC
Last seen:Never
File type:Excel file xls
MIME type:application/vnd.ms-excel
ssdeep 12288:7gw1n7EyiHLP/gzIbignp9ijd+4TIQ2p2ZtrPIdamD:7gwd7DgD/7bFPdQ2KtrPIkm
TLSH T1DAB4D09173E2CB2BF68E5630CEA2C6DC2717FC278E57860B7256775E5C72560284323A
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 17 sections in this file using oledump:

Section IDSection sizeSection name
1114 bytesCompObj
2244 bytesDocumentSummaryInformation
3200 bytesSummaryInformation
4114 bytesMBD00015A9A/CompObj
5276 bytesMBD00015A9A/DocumentSummaryInformation
6101796 bytesMBD00015A9A/SummaryInformation
7246835 bytesMBD00015A9A/Workbook
8598 bytesMBD00015A9B/Ole
9127032 bytesWorkbook
10519 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
17553 bytes_VBA_PROJECT_CUR/VBA/dir

Intelligence


File Origin
# of uploads :
1
# of downloads :
178
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
Malware family:
n/a
ID:
1
File name:
xls
Verdict:
No threats detected
Analysis date:
2026-04-20 12:43:45 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
92.5%
Tags:
trojan macro micro lien
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending an HTTP GET request
Connection attempt to an infection source by exploiting the app vulnerability
Сreating synchronization primitives
Connection attempt by exploiting the app vulnerability
Query of malicious DNS domain
Result
Verdict:
Malicious
File Type:
Legacy Excel File with Macro
Payload URLs
URL
File name
http://0030064535305/tetetetetetetetet.php
Embedded Ole
Behaviour
SuspiciousRTF detected
Document image
Document image
Gathering data
Label:
Malicious
Suspicious Score:
10/10
Score Malicious:
1%
Score Benign:
0%
Verdict:
Malicious
File Type:
xls
First seen:
2026-04-20T02:21:00Z UTC
Last seen:
2026-04-22T09:53:00Z UTC
Hits:
~1000
Detections:
Trojan-Downloader.Agent.HTTP.C&C HEUR:Trojan.OLE2.UrcBadur.genw HEUR:Trojan.OLE2.Badur.genw HEUR:Exploit.MSOffice.CVE-2017-0199.gen HEUR:Exploit.MSOffice.CVE-2017-0199.a
Result
Threat name:
n/a
Detection:
malicious
Classification:
expl
Score:
56 / 100
Signature
Document exploit detected (process start blacklist hit)
Multi AV Scanner detection for submitted file
Sigma detected: Suspicious Microsoft Office Child Process
Behaviour
Behavior Graph:
Gathering data
Verdict:
Malicious
Threat:
Trojan.MSOffice.CVE-2017-0199
Threat name:
Win32.Trojan.Egairtigado
Status:
Malicious
First seen:
2026-04-20 10:02:29 UTC
File Type:
Document
Extracted files:
25
AV detection:
10 of 38 (26.32%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
persistence ransomware
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.

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
Author:Jeff White (karttoon@gmail.com) @noottrak
Description:Identify OLE Project protection within documents.
Rule name:Qbot
Author:Dhanunjaya
Description:Yara Rule to Detect Qbot
Rule name:XLS_STRINGS
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.

Comments



Avatar
abuse.ch commented on 2026-04-20 14:16:23 UTC

Payload URL:
http://192.210.186.197/20/verycleaneffectivethingscoming.hta