MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 79a4fa2ac4971f669cbcbe4f1573bbc893f05490a9a0d0d9d6b6c1c91bb3a1c4. 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: 6

Intelligence 6 IOCs YARA 1 File information Comments

SHA256 hash:	79a4fa2ac4971f669cbcbe4f1573bbc893f05490a9a0d0d9d6b6c1c91bb3a1c4
SHA3-384 hash:	8ed6347dded1184d43662ee81b579ad41dc8d6a75cce2a6dd587f5d57abfe3df84d9fbef36220d84636187acc4c4bb7b
SHA1 hash:	399a6c514bc8caa0297a558f5abbf61c5b96aa74
MD5 hash:	63085b0b7cc5bb00859aba105cbb40b1
humanhash:	coffee-shade-oregon-orange
File name:	NATONSPAFinalInviteList.zip
Download:	download sample
Signature	RemcosRAT Create hunting rule
File size:	477'251 bytes
First seen:	2023-11-01 17:43:01 UTC
Last seen:	Never
File type:	zip
MIME type:	application/zip
ssdeep	6144:dt3ny/Uskc6xS2MvJi7SORdQiFwEBpF0vysoq0qxTJ65ICtVthPS/KbWjXQDNO6B:dt3nNkBVG3F3pmyzqHCDtW7QY6B
TLSH	T1ADA4239FE6E67DD86C06E4C5A7992C0C476363B809C1D3827E13B099BDC980336B7795
TrID	80.0% (.ZIP) ZIP compressed archive (4000/1) 20.0% (.PG/BIN) PrintFox/Pagefox bitmap (640x800) (1000/1)
Reporter	smica83
Tags:	allnato.net CVE-2023-38831 zip

Intelligence

File Origin

# of uploads :

# of downloads :

132

Origin country :

File Archive Information

This file archive contains 2 file(s), sorted by their relevance:

File name:	NATONSPAFinalInviteList.pdf
File size:	502'876 bytes
SHA256 hash:	6f46da3517acfb57cb05111a65a71bb14168e1196fc4575c4dbfa4f1b16f600b
MD5 hash:	795e9d08adbe4f90beaf4951b9af6383
MIME type:	application/pdf
Signature	RemcosRAT

File name:	NATONSPAFinalInviteList.pdf .cmd
File size:	1'995 bytes
SHA256 hash:	6ca54ba5f6665ddf1653cc3564647918eaa5290045dfca20b30235d73d0ebd99
MD5 hash:	5ee635352935abdc7fcb078dde6b893b
MIME type:	text/x-msdos-batch
Signature	RemcosRAT

Vendor Threat Intelligence

Detection(s):

Sanesecurity.Foxhole.Zip_pdf.UNOFFICIAL

TwinWave.EvlZip.CVE-2023-38831WinRarWidowMaker.20230823.UNOFFICIAL

Result

Verdict:

Clean

File Type:

PDF File

Link:

https://app.docguard.net/79a4fa2ac4971f669cbcbe4f1573bbc893f05490a9a0d0d9d6b6c1c91bb3a1c4/results/dashboard

Gathering data

Verdict:

Malicious

Labled as:

CVE-2023-38831

Link:

https://www.hybrid-analysis.com/sample/79a4fa2ac4971f669cbcbe4f1573bbc893f05490a9a0d0d9d6b6c1c91bb3a1c4

Result

Verdict:

MALICIOUS

Link:

https://labs.inquest.net/dfi/sha256/79a4fa2ac4971f669cbcbe4f1573bbc893f05490a9a0d0d9d6b6c1c91bb3a1c4

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/79a4fa2ac4971f669cbcbe4f1573bbc893f05490a9a0d0d9d6b6c1c91bb3a1c4/

Threat name:

Binary.Downloader.Cert

Status:

Malicious

First seen:

2023-10-03 09:57:44 UTC

AV detection:

4 of 38 (10.53%)

Threat level:

3/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=pgspukwes4pwnhf4xzhrk453zcj7aveqvgqnbwoww3a4sg5tuhca._file

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/79a4fa2ac4971f669cbcbe4f1573bbc893f05490a9a0d0d9d6b6c1c91bb3a1c4

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:	WinRAR_CVE_2023_38831_Exploit Create hunting rule
Author:	marcin@ulikowski.pl
Description:	Detects ZIP archives exploiting CVE-2023-38831 in WinRAR
Reference:	https://www.group-ib.com/blog/cve-2023-38831-winrar-zero-day