MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0043a61af8d9b9045e2c420c91c7a452f591420bbf4d28ec2c3a66c67bdb3a50. 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: 12

Maldoc score: 9

Intelligence 12 IOCs YARA 2 File information Comments

SHA256 hash:	0043a61af8d9b9045e2c420c91c7a452f591420bbf4d28ec2c3a66c67bdb3a50
SHA3-384 hash:	b2dd753390abeb1bbef1465b04c1b588952a7a6498ea90f00456b03f70c33a9aec10c2aaca3e3308b65999f195c21040
SHA1 hash:	94596089c9193846567cc2271c0451243f53c526
MD5 hash:	39fb359fff1d4ea12cfbc8000e715bfb
humanhash:	india-nineteen-bulldog-london
File name:	SecuriteInfo.com.X97M.DownLoader.2343.22321.18991
Download:	download sample
Signature	RemcosRAT Create hunting rule
File size:	1'068'544 bytes
First seen:	2026-09-22 07:39:50 UTC
Last seen:	2026-09-22 08:35:43 UTC
File type:	xlsx
MIME type:	application/vnd.ms-excel
ssdeep	24576:/pzOZ5ezyKvUtzBSRG8XH86wMhhx9jwL4HyTZahDAKY99k:hzo5ez6GzoMhh/wL7MDFYL
TLSH	T1AA352326BEA4EF87D07A427B0CE5C09443A87CA17F05A91B2796FB6C30B067171E654E
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	SecuriteInfoCom
Tags:	RemcosRAT xlsx

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: 9

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 ID	Section size	Section name
1	114 bytes	CompObj
2	244 bytes	DocumentSummaryInformation
3	200 bytes	SummaryInformation
4	99 bytes	MBD00EE0754/CompObj
5	656979 bytes	MBD00EE0754/Package
6	814 bytes	MBD00EE0755/Ole
7	388295 bytes	Workbook
8	527 bytes	_VBA_PROJECT_CUR/PROJECT
9	104 bytes	_VBA_PROJECT_CUR/PROJECTwm
10	977 bytes	_VBA_PROJECT_CUR/VBA/Sheet1
11	977 bytes	_VBA_PROJECT_CUR/VBA/Sheet2
12	977 bytes	_VBA_PROJECT_CUR/VBA/Sheet3
13	985 bytes	_VBA_PROJECT_CUR/VBA/ThisWorkbook
14	2644 bytes	_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
15	553 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:

Type	Keyword	Description
Suspicious	Hex Strings	Hex-encoded strings were detected, may beused to obfuscate strings (option --decode tosee all)

Intelligence

File Origin

# of uploads :

# of downloads :

160

Origin country :

Vendor Threat Intelligence

Malware configuration found for:

MSO

Details

Link:

https://research.acce.ciphertechsolutions.com/results/49a46352-55e8-4553-920b-511b1a222811/

Malware family:

n/a

ID:

File name:

xlsx

Verdict:

No threats detected

Analysis date:

2026-09-22 08:01:05 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/03870f7a-e0c4-4570-a388-042afe0ec858

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Verdict:

Legit

File type:

application/vnd.openxmlformats-officedocument.spreadsheetml.sheet

Has a screenshot:

False

Contains macros:

False

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/88238/

Detection(s):

SecuriteInfo.com.X97M.DownLoader.2343.22321.18991.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

DNS request

Сreating synchronization primitives

Connection attempt by exploiting the app vulnerability

Sending an HTTP GET request

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

CVE-2017-0199 downloader evasive exploit macros

Link:

https://www.filescan.io/uploads/6ab230e66aafcfb11a18d5e4/reports/78ebb1ad-9bec-4b1b-8f97-e3a42045b1d9/overview

Verdict:

Malicious

Labled as:

CVE-2017-0199

Link:

https://www.hybrid-analysis.com/sample/0043a61af8d9b9045e2c420c91c7a452f591420bbf4d28ec2c3a66c67bdb3a50

Label:

Malicious

Suspicious Score:

10/10

Score Malicious:

Score Benign:

Link:

https://www.malware.ai/gui/files/?id=bdf17145-a543-4fd0-a665-0beba6e126ef

Verdict:

Malicious

File Type:

xls

First seen:

2026-09-21T19:15:00Z UTC

Last seen:

2026-09-24T05:37:00Z UTC

Hits:

~10000

Link:

https://opentip.kaspersky.com/0043a61af8d9b9045e2c420c91c7a452f591420bbf4d28ec2c3a66c67bdb3a50/results?tab=lookup

Score:

100%

Verdict:

Malware

File Type:

OFFICE

Link:

https://malprob.io/report/0043a61af8d9b9045e2c420c91c7a452f591420bbf4d28ec2c3a66c67bdb3a50

Verdict:

inconclusive

YARA:

5 match(es)

Tags:

Office Document

Link:

https://app.malva.re/file/39fb359fff1d4ea12cfbc8000e715bfb

Detection:

remcos

Link:

https://mwdb.cert.pl/sample/0043a61af8d9b9045e2c420c91c7a452f591420bbf4d28ec2c3a66c67bdb3a50/

Threat name:

Win32.Trojan.Ravartar

Status:

Malicious

First seen:

2026-09-21 23:37:59 UTC

File Type:

Document

Extracted files:

104

AV detection:

11 of 23 (47.83%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=abb2mgxy3g4qixrmiigjdr5ekl2zcqqlx5gsr3bmhjtmm663hjia._file

Result

Malware family:

n/a

Score:

1/10

Tags:

persistence ransomware

Link:

https://tria.ge/reports/260922-jhqfxabb26/

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:

0.79

Link:

https://yomi.yoroi.company/submissions/0043a61af8d9b9045e2c420c91c7a452f591420bbf4d28ec2c3a66c67bdb3a50

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:	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

https://www.capesandbox.com/analysis/88238/

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