PDF malware analysis — malicious · 8f01555606c3e99f

MALICIOUS

PDF

52.8 KB Created: 2020-11-04 10:58:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23

MD5: d0d6442867a537d637e8c52b1ab191ec SHA-1: 4c78d61d4771da9d763abdf0e961b4d47b2cdc8d SHA-256: 8f01555606c3e99feeac7e7220d6633d65e3698991abe783cf95201ad96f3e19

194 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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.
Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK

PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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://ttraff.me/123?keyword=skyrim+find+the+redguard+woman In PDF document text
- https://zoxamadafipezo.weebly.com/uploads/1/3/1/1/131164297/5353243.pdfIn PDF document text
- https://pinoxelu.weebly.com/uploads/1/3/4/1/134108818/tivesexoroxa.pdfIn PDF document text
- https://difiraboveju.weebly.com/uploads/1/3/4/5/134508976/tivul-nigef-jojire.pdfIn PDF document text
- https://jozifopavix.weebly.com/uploads/1/3/4/3/134355896/5635118.pdfIn PDF document text
- https://futuziduxe.weebly.com/uploads/1/3/4/5/134508203/2625633.pdfIn PDF document text
- https://tubenuluni.weebly.com/uploads/1/3/1/4/131437864/832302.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/zuxadol/pavabedulajavevavum.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0501/5044/1141/files/65244726957.pdfIn PDF document text
- https://s3.amazonaws.com/leguvefu/iosh_risk_assessment_project_example.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0225/5770/files/50792403934.pdfIn PDF document text
- https://s3.amazonaws.com/wonoti/printable_monthly_attendance_sheet.pdfIn PDF document text
- https://s3.amazonaws.com/rekorewexidiwo/pebimawa.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c36f5498-f845-47c0-a714-0c99d0c18d6c/terraria_wave_bank.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7dcac43c-fccd-4544-96ab-9d4701cc1911/novedomotef.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/be2e59cf-80c0-45e3-8c39-6644bd38aaf0/saximo.pdfIn PDF document text
- https://s3.amazonaws.com/zetare/jeripuxedojelikewowa.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_off00008efd.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8EFD	5472 bytes
SHA-256: `257bca5bb699f1bf1c11ed7f65d19239e6d417c7c3647da47a3e6fe1af640d29`
`font_01_sfnt_off0000a18a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA18A	10760 bytes
SHA-256: `572e4540fac1e16dc345f9e935d4b72f739cbdce7c819933ead9151c0c7f5697`

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