Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ddd149c645c25c6…

MALICIOUS

PDF

49.8 KB Created: 2020-08-19 02:58:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4990d66852f8205652a3551643c7d1c6 SHA-1: 3609487c09c74ecc7dc97ab99b6856f101e8193d SHA-256: 0ddd149c645c25c6cd50cae26e415e13731ac42bd4196ff9d3e76a9d2456ed98
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, contains text related to 'cover letter templates' and the malicious URL, suggesting a phishing lure. The ML classifier also strongly indicated maliciousness.

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.com/pify?keyword=effective+cover+letter+templates In PDF document text
    • http://files.beefedupbarbecue.com.au/uploads/1/3/1/8/131857402/sebiku.pdfIn PDF document text
    • http://files.cypish.org/uploads/1/3/0/8/130874222/buvine.pdfIn PDF document text
    • http://files.islandhillfarm.ca/uploads/1/3/1/0/131070367/5972948.pdfIn PDF document text
    • http://files.pendurthisurgicalassociates.com/uploads/1/3/1/6/131637300/rizobozewezufon.pdfIn PDF document text
    • http://bezurefaw.pelicanlearningsolutions.com/uploads/1/3/1/4/131482975/kiwonifakuxam.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/1/0431/6132/1634/files/fufazelosefunot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0185/6679/files/vixob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6413/0725/files/84800722011.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4978/8327/files/scrambled_sentences_exercises_for_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4492/0734/files/kopasikisatuwefawozumaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6690/1148/files/88066356787.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3936/7061/files/utilitarianism_theory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6779/3820/files/xuzewapapirukazage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mowojemabedeju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9438/5575/files/que_es_una_solucion_isotonica.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

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_off000084ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84EC 5176 bytes
SHA-256: 989b61d8bea6a081fddc14e4e395a96042765f0d580b54bf1a0c4c65fc1abdf7
font_01_sfnt_off00009676.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9676 10648 bytes
SHA-256: 5753df9ac94c9762a0998aedb4787908ea90ac915cc29e7f4a2be3938583e779

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