MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 84626884775edba43d27869acfe98ce6e7bf687bc1d71fa4a4383d69cfe9d0b6. 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

Stealc

Vendor detections: 7

Intelligence 7 IOCs YARA 2 File information Comments

SHA256 hash:	84626884775edba43d27869acfe98ce6e7bf687bc1d71fa4a4383d69cfe9d0b6
SHA3-384 hash:	ed30e153e52fad15c830f3be15a2d69c749a1f2057e2f78f216a0624630c52620932f28636f35722cc65b0157ebba0c1
SHA1 hash:	5dcf904992745d124e65f5b5adefeafed78b7ed9
MD5 hash:	4913fe0e4d17f0a4b18a9acb04c255ac
humanhash:	helium-florida-undress-mexico
File name:	officeupdate.hta
Download:	download sample
Signature	Stealc Create hunting rule
File size:	118'502 bytes
First seen:	2024-02-04 06:47:01 UTC
Last seen:	Never
File type:	hta
MIME type:	text/xml
ssdeep	3072:SCmT2J09HCxzDRfzU4g3i9/ptUDKMXC1RuGjFR0A:4TNiztfojujUD21cmx
TLSH	T14CC30231E8484CE5FA610B3A151E9C342CB28DD78C47579FC3B964928BC4A6DD27E7CA
TrID	85.9% (.GPX) GPS eXchange format (30500/1/4) 14.0% (.XML) Generic XML (ASCII) (5000/1)
Reporter	iamdeadlyz
Tags:	194-120-116-120 CVE-2023-27363 hta Stealc

Iamdeadlyz

Outfoxing a Malicious PDF: An attacker's attempt to deliver a Stealc infostealer. Exploiting CVE-2023-27363.

Drops officeupdate.hta [persisting via startup folder]
Retrieves: hxxps://brazilanimalshelp[.]com/updating/stale.exe
Stealc C&C: hxxp://194.120.116[.]120/7a957ef6cc168ff6.php

Intelligence

File Origin

# of uploads :

# of downloads :

132

Origin country :

Vendor Threat Intelligence

Detection(s):

PUA.Win.Tool.XDPBypass-1

PUA.Win.Tool.XDPBypass-4

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

masquerade packed

Link:

https://www.filescan.io/uploads/65bf32e91a072d565265502b/reports/0c157af6-f1eb-40e1-932b-49cd19ef6ab0/overview

Verdict:

Malicious

Labled as:

BZC.UGZ.Boxter.1

Link:

https://www.hybrid-analysis.com/sample/84626884775edba43d27869acfe98ce6e7bf687bc1d71fa4a4383d69cfe9d0b6

Result

Verdict:

MALICIOUS

Details

Base64 Encoded URL

Detected an ANSI or UNICODE http:// or https:// base64 encoded URL prefix.

Malicious Scriptlet 1 of 7

Detected a malicious pivot typically seen during the 'file-less' pivot commonly seen in malware carriers.

Malicious Scriptlet 7 of 7

Detected a malicious pivot typically seen during the 'file-less' pivot commonly seen in malware carriers.

Hidden Powershell

Detected a pivot to Powershell that utilizes commonly nefarious attributes such as '-windowstyle hidden'.

Result

Threat name:

Stealc

Detection:

malicious

Classification:

troj.adwa

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1386327

Signature

Antivirus detection for URL or domain

C2 URLs / IPs found in malware configuration

Drops PE files to the startup folder

Found malware configuration

Machine Learning detection for dropped file

Multi AV Scanner detection for domain / URL

Multi AV Scanner detection for dropped file

Multi AV Scanner detection for submitted file

Overwrites code with unconditional jumps - possibly settings hooks in foreign process

Powershell drops PE file

Sample uses string decryption to hide its real strings

Sigma detected: Suspicious Invoke-WebRequest Execution

Sigma detected: Suspicious MSHTA Child Process

Suspicious powershell command line found

Yara detected Stealc

Behaviour

Behavior Graph:

Download SVG

Score:

Verdict:

Benign

File Type:

ASCII

Link:

https://malprob.io/report/84626884775edba43d27869acfe98ce6e7bf687bc1d71fa4a4383d69cfe9d0b6

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/84626884775edba43d27869acfe98ce6e7bf687bc1d71fa4a4383d69cfe9d0b6/

Threat name:

Win32.Trojan.Boxter

Status:

Malicious

First seen:

2024-02-04 06:48:04 UTC

File Type:

Text (XML)

AV detection:

7 of 23 (30.43%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=qrrgrbdxl3n2ipjhq2nm72mm43t362d3yhlr7jfeha6wtt7j2c3a._file

Result

Malware family:

n/a

Score:

3/10

Tags:

n/a

Link:

https://tria.ge/reports/240204-n7fp8aahgn/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Legit

Score:

0.00

Link:

https://yomi.yoroi.company/submissions/84626884775edba43d27869acfe98ce6e7bf687bc1d71fa4a4383d69cfe9d0b6

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.