Malicious PDF — malware analysis report

Static analysis result for SHA-256 3549f813ec9b274f…

MALICIOUS

PDF

40.8 KB Created: 2020-08-22 18:53:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8d8a839c3f984561f028ef941eb7fd3f SHA-1: d7fac7522d16c54f10d1aa9fc6a52427e0193ec1 SHA-256: 3549f813ec9b274f3eecaf08dae0baa5b9d2a5b8312c8b5b678c1d0dff7454c7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to known malicious redirector infrastructure, specifically 'https://ttraff.ru/pify?keyword=after+party+netflix+parents+guide'. Another critical heuristic flagged the document as a PDF link farm, with numerous links to shopify.com domains, likely for SEO manipulation or to host further malicious content. The document body contains garbled text but includes the lure phrase 'after party netflix parents guide', suggesting a social engineering pretext.

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.ru/pify?keyword=after+party+netflix+parents+guide In PDF document text
    • http://files.alexanderecology.com/uploads/1/3/1/4/131438563/lokegikosexiras.pdfIn PDF document text
    • http://fuwizoz.theclayloft.co.uk/uploads/1/3/0/9/130969204/sawigasunawokaf-lirofivemun.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2270/5063/files/gigot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5689/7947/files/korepatebejoxoxodajedi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6126/5062/files/cbse_literature_reader_class_9.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1575/7214/files/printable_baby_bingo_blank_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4557/6088/files/24929620581.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/5822/9411/files/tar_gz_unzip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4012/6629/files/34949120554.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7246/3772/files/bibiguraw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5063/1319/files/topographical_anatomy_and_operative_surgery_textbook_for_english_speaking.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7188/9815/files/71510388024.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
🗂 Part of campaign: alexanderecology.com 7 samples

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006174.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6174 5368 bytes
SHA-256: bafd69a8ffc1398118e9e44219c91a647c72ad187efe17d1b807af77f925447e
font_01_sfnt_off000073cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73CF 10164 bytes
SHA-256: b782e96748fcf1f43072aa6f0c5e6aec5e576f78aa2ed169a2c76cc6a08f2248

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