MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4e680b23c247b8a8e5231879c0ffc701086ea831fbaae35263d39dff28b704dc. 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: 17

Intelligence 17 IOCs YARA 2 File information Comments

SHA256 hash:	4e680b23c247b8a8e5231879c0ffc701086ea831fbaae35263d39dff28b704dc
SHA3-384 hash:	47c0260a3f40ef929f87c98ca23e5e5056401a70370ecf1c070451df29a715a5d5914ba64c1c7a5ca67cb05a09abdb3a
SHA1 hash:	42d3f260a6002477bf287f0d74c9168ad49430fe
MD5 hash:	394cf74171c0a1feef1723cc3df2fa37
humanhash:	nine-hot-carbon-muppet
File name:	HKAZ__contract_rev_280126_signed_xls.bin
Download:	download sample
Signature	RemcosRAT Create hunting rule
File size:	751'616 bytes
First seen:	2026-03-16 12:30:09 UTC
Last seen:	2026-03-16 17:28:17 UTC
File type:	xlsx
MIME type:	application/vnd.ms-excel
ssdeep	12288:/Kzv00rohZ1EqkhqswNKzv00rohZ1EqkhqswBfDLzofpkxA+QtQevQ1P+oa6jD0x:SVohZLswkVohZLswBbLApbVQeo1xa6jb
TLSH	T172F4135232054A77C6BE5F30248645658C1EFC42BE89FC07C2D5BBBE0F742F6A56B268
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	FXOLabs
Tags:	CVE-2017-11882 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 dump

MalwareBazaar was able to identify 18 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	MBD006E1881/CompObj
5	232659 bytes	MBD006E1881/Package
6	99 bytes	MBD006E1882/CompObj
7	232659 bytes	MBD006E1882/Package
8	1874 bytes	MBD006E1883/OLe10naTive
9	20 bytes	MBD006E1883/Ole
10	263533 bytes	Workbook
11	527 bytes	_VBA_PROJECT_CUR/PROJECT
12	104 bytes	_VBA_PROJECT_CUR/PROJECTwm
13	977 bytes	_VBA_PROJECT_CUR/VBA/Sheet1
14	977 bytes	_VBA_PROJECT_CUR/VBA/Sheet2
15	977 bytes	_VBA_PROJECT_CUR/VBA/Sheet3
16	985 bytes	_VBA_PROJECT_CUR/VBA/ThisWorkbook
17	2644 bytes	_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
18	553 bytes	_VBA_PROJECT_CUR/VBA/dir

Intelligence

File Origin

# of uploads :

# of downloads :

143

Origin country :

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/513b9f8d-987a-49b5-a7ab-9b88ec40acc3/

Malware family:

n/a

ID:

File name:

HKAZ_ contract_rev_280126_signed.xlsb

Verdict:

No threats detected

Analysis date:

2026-03-16 10:01:36 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/47f1de01-63c7-4f23-86a5-79710d00f8fd

Note:

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

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/57633/

Detection(s):

Sanesecurity.Shelter.Malware.BadMacro.BadOleNatEquat.UNOFFICIAL

TwinWave.EvilDoc.EQAndMisCasedOleNativeWasTheCaseThatTheyGaveMe.20200215.UNOFFICIAL

Verdict:

Malicious

Score:

97.4%

Link:

https://cyber-fortress.com/docs/result/index.php?id=69b7f7e488c80c01586ac1ea

Tags:

trojan shell sage

Result

Verdict:

Malware

Maliciousness:

Behaviour

Sending a custom TCP request

Creating a window

Searching for synchronization primitives

Launching a process

DNS request

Creating a file in the %AppData% directory

Сreating synchronization primitives

Running batch commands

Creating a process with a hidden window

Connection attempt

Creating a process from a recently created file

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

Result

Verdict:

Malicious

File Type:

Legacy Excel File with Macro

Link:

https://app.docguard.net/4e680b23c247b8a8e5231879c0ffc701086ea831fbaae35263d39dff28b704dc/results/dashboard

Behaviour

BlacklistAPI detected

Gathering data

Verdict:

Malicious

Labled as:

CVE-2017-11882

Link:

https://www.hybrid-analysis.com/sample/4e680b23c247b8a8e5231879c0ffc701086ea831fbaae35263d39dff28b704dc

Label:

Malicious

Suspicious Score:

10/10

Score Malicious:

Score Benign:

Link:

https://www.malware.ai/gui/files/?id=50611cb8-a4d1-482a-b23e-3d108da5c486

Result

Verdict:

MALICIOUS

Link:

https://labs.inquest.net/dfi/sha256/4e680b23c247b8a8e5231879c0ffc701086ea831fbaae35263d39dff28b704dc

Details

Document With Few Pages

Document contains between one and three pages of content. Most malicious documents are sparse in page count.

Document With Minimal Content

Document contains less than 1 kilobyte of semantic information.

Verdict:

Malicious

File Type:

xls

Link:

https://opentip.kaspersky.com/4e680b23c247b8a8e5231879c0ffc701086ea831fbaae35263d39dff28b704dc/results?tab=lookup

Result

Threat name:

n/a

Detection:

malicious

Classification:

phis.expl

Score:

76 / 100

Link:

https://www.joesandbox.com/analysis/1884181

Signature

AI detected malicious page (phishing or scam)

Antivirus / Scanner detection for submitted sample

Antivirus detection for dropped file

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/4e680b23c247b8a8e5231879c0ffc701086ea831fbaae35263d39dff28b704dc

Verdict:

Malware

YARA:

6 match(es)

Tags:

Corrupted Office Document

Link:

https://app.malva.re/file/394cf74171c0a1feef1723cc3df2fa37

Detection:

remcos

Link:

https://mwdb.cert.pl/sample/4e680b23c247b8a8e5231879c0ffc701086ea831fbaae35263d39dff28b704dc/

Threat name:

Win32.Exploit.CVE-2017-11882

Status:

Malicious

First seen:

2026-03-16 08:37:54 UTC

File Type:

Document

Extracted files:

308

AV detection:

16 of 38 (42.11%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=jzuawi6ci64krzjddb44b76haeeg5kbr7ovogutd2oo76kfxatoa._file

Result

Malware family:

n/a

Score:

1/10

Tags:

persistence ransomware

Link:

https://tria.ge/reports/260316-ppqcdafs2s/

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

Malware family:

Remcos

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/4e680b23c247/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/4e680b23c247b8a8e5231879c0ffc701086ea831fbaae35263d39dff28b704dc

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.

Malspam

RemcosRAT

xlsx 4e680b23c247b8a8e5231879c0ffc701086ea831fbaae35263d39dff28b704dc

(this sample)

Delivery method

Distributed via e-mail attachment

Cape

https://www.capesandbox.com/analysis/57633/

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