PDF malware analysis — malicious · 629ed37e5e6e0adc

MALICIOUS

PDF

68.5 KB Created: 2020-11-24 17:46:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: f71c3bed3f77724bf835c40a7f93d827 SHA-1: 50de730157ad55676fbddb2e351cabcc3084db93 SHA-256: 629ed37e5e6e0adca88acd247ba63c22561a2354c6d7ae7e5ef3959ab8ac7d73

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a large number of external links, identified as a link farm, suggesting a malicious intent to redirect users to potentially harmful websites. The ML classifier and ClamAV detection strongly indicate maliciousness. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a phishing or SEO manipulation tactic.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

Heuristics 5

Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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://trafftec.ru/123?utm_term=how+to+get+high+hrothgar+key
- https://zivatexoriku.weebly.com/uploads/1/3/4/8/134850237/3254293.pdf
- https://xijiruxexewige.weebly.com/uploads/1/3/4/7/134725886/98a6ef.pdf
- https://sepanafawo.weebly.com/uploads/1/3/4/3/134316973/gozosebevojazevusaso.pdf
- https://gevafitasib.weebly.com/uploads/1/3/1/3/131380901/c25f730.pdf
- https://labuxodapiju.weebly.com/uploads/1/3/4/4/134492440/texejibezogunazovuku.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/vunizi/94130212970.pdf
- https://s3.amazonaws.com/purufiz/fukevoxud.pdf
- https://s3.amazonaws.com/gewuwasi/50311169259.pdf
- https://s3.amazonaws.com/tarajix/68436835533.pdf
- https://s3.amazonaws.com/tetazino/vapozugej.pdf
- https://uploads.strikinglycdn.com/files/8de2bd4d-03cf-493b-8a72-f409480c49bd/gixegazaduveg.pdf
- https://uploads.strikinglycdn.com/files/b7a4b121-3ee3-4887-98db-6aea5edc36bb/36290627507.pdf
- https://s3.amazonaws.com/vidadaviwal/aultcare_prior_authorization_and_referral_form.pdf
- https://s3.amazonaws.com/wexoteluwag/12877614287.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_off0000ce65.bin` `8c003f423a5f3b6d03cfc929bcae34710cccf605ce9b4eb63cca4125320ac7f9`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCE65	4956 bytes
`font_01_sfnt_off0000df54.bin` `873cbb8d0f126d0eb21deb948ad913fb7ac82da7f03328a70ee17bc1539b1d58`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDF54	11536 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.