PDF malware analysis — malicious · 098d6750a05c4eaf

MALICIOUS

PDF

74.0 KB Created: 2021-03-28 23:29:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 1fa925018aedad4e450098345cc5905f SHA-1: 27bacf94e97544870eed1d35967a056e053fff42 SHA-256: 098d6750a05c4eaf82d19cfe3d015cb9813dde0e1f6b723f9841e1740eb2727c

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document that contains an embedded URL. Static analysis heuristics and a machine learning classifier flagged this PDF as malicious. The embedded URL, https://seumenha.ru/wix?keyword=pencil+fish+care, is likely used to redirect the user to a phishing or malware distribution site. No scripts were extracted from this sample, but the PDF structure and embedded URI are strong indicators of malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://seumenha.ru/wix?keyword=pencil+fish+care
- https://nukimaxirob.weebly.com/uploads/1/3/0/7/130776041/28d112acaaa.pdf
- http://ladekepevij.mygamesonline.org/49243959347.pdf
- https://tumunonapuve.weebly.com/uploads/1/3/1/3/131379134/terejafigozu-velafedaru-wububepakadiwo.pdf
- https://runufegoxow.weebly.com/uploads/1/3/5/3/135347372/nogapoxixubosarimo.pdf
- https://cdn.sqhk.co/jigotove/bgfZVji/vidmate_install_windows_7.pdf
- https://xoravali.weebly.com/uploads/1/3/0/7/130775395/2062505.pdf
- https://cdn.sqhk.co/merabuvi/jfJjggX/73975071577.pdf
- http://watogoda.mypressonline.com/foninizomegaponarapojupen.pdf
- https://cdn.sqhk.co/bepeguvovori/lGgjjf6/greatest_hits_of_the_50_60_and_70.pdf
- http://taforojujutusig.mygamesonline.org/advantages_and_disadvantages_of_sexual_and_asexual_reproduction.pdf
- http://gejudoxe.mypressonline.com/game_theory_a_critical_introduction.pdf
- https://tokegomobox.weebly.com/uploads/1/3/4/3/134314144/8758284.pdf
- https://negogepif.weebly.com/uploads/1/3/0/7/130775604/132141.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://madepadejatutof.onlinewebshop.net/7591582389.pdf
- http://zaxalamel.rf.gd/happy_anniversary_name_cake.pdf
- http://businaniz.epizy.com/aadhaar_application_form_format.pdf
- http://gomugugagaf.onlinewebshop.net/rukog.pdf
- http://pitaken.onlinewebshop.net/84670117107.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e5c7.bin` `4b02b942b84197aa11c5cc64cb07c5949570ed3d2b08482c539d68cffb02ca59`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE5C7	4968 bytes
`font_01_sfnt_off0000f6a8.bin` `ae3d96579497545200e1b30252a7640ddc16d1b3da41c418c6d76cbff3af9ee6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF6A8	10660 bytes

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