PDF malware analysis — malicious · fa4700bbf9b03f36

MALICIOUS

PDF

87.2 KB Created: 2021-01-13 08:29:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22

MD5: 3f7fad2dafe5b76a393992dbad14813a SHA-1: 5e5b13973dfd4beac7f4e494adc7c6985ca0ba3c SHA-256: fa4700bbf9b03f366afdf31ad2492585f5956cfd0bfc7df7b4a5262a42d68422

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The embedded URL, https://trafftec.ru/aws?utm_term=tv+news+reporters+uk, is likely used for phishing or to download a secondary payload. While no scripts were explicitly extracted, the PDF structure and the presence of an external URI suggest an attempt to redirect the user to a malicious site.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://trafftec.ru/aws?utm_term=tv+news+reporters+uk PDF link annotation
- https://cdn-cms.f-static.net/uploads/4378836/normal_5f96085c09d6d.pdfIn PDF document text
- https://site-1193425.mozfiles.com/files/1193425/space_road_color_ball_game_dancing.pdfIn PDF document text
- https://site-1173482.mozfiles.com/files/1173482/is_homeschooling_legal_in_panama.pdfIn PDF document text
- https://site-1168448.mozfiles.com/files/1168448/jupelepi.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4443799/normal_5fc188328f070.pdfIn PDF document text
- https://cdn.sqhk.co/kuruwoke/dig1ijY/download_my_boo_virtual_pet_mod_apk.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4470209/normal_5feb5fc75594b.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/bipepezuwed/android_studio_flutter_sdk_path.pdfIn PDF document text
- https://s3.amazonaws.com/xutomoxu/46993793112.pdfIn PDF document text
- https://s3.amazonaws.com/najipavez/49370611784.pdfIn PDF document text
- https://s3.amazonaws.com/sedimeraxufi/self_assessment_property_tax_form_2017-_18.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000118c9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x118C9	4736 bytes
SHA-256: `79d92ac46fb5fbe54e42eba3c44bee5f5823c27df91ef967b2b4f5cc069bc4b5`
`font_01_sfnt_off0001290c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1290C	11524 bytes
SHA-256: `337f20f360b21c90ac106aada9613cbbc4b9221065de6aa4f22d3cfb271b173e`

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