Malicious PDF — malware analysis report

Static analysis result for SHA-256 805c358b0f3b50fa…

MALICIOUS

PDF

39.9 KB Created: 2020-08-20 22:09:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6daf776da8df0235476091ae83e9eb1f SHA-1: b7b3c9e71e0102f63f90035ba60b2ca9863f3dd6 SHA-256: 805c358b0f3b50fa83900e6119894a631e0a5711c786f946c09280e9a2c6d544
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are hosted on Shopify and appear to be part of a link farm designed to improve search engine ranking for terms like 'baby sitters club book 1 pdf'. The primary redirector URL, https://ttraff.cc/pify?keyword=baby+sitters+club+book+1+pdf, is flagged as malicious and is used to obscure the actual download links. This suggests a phishing or malware distribution scheme disguised as a free book download.

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.cc/pify?keyword=baby+sitters+club+book+1+pdf In PDF document text
    • http://files.cruzing4photos.com/uploads/1/3/0/8/130874317/2675290.pdfIn PDF document text
    • http://files.mickburson.com/uploads/1/3/2/6/132695356/ff456320780.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/1/0432/1663/4016/files/zasejarafi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8561/0654/files/isometric_dot_sheet_a4_size.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37638787324.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2749/5072/files/hunger_games_book_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5996/1239/files/letuzidamusavifo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3210/1543/files/32467757831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1186/5751/files/icy_tower_characters.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4628/1122/files/41445418108.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 2

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_off00005e4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E4F 5556 bytes
SHA-256: dacf04f50dee7cdcf94cc2959ff353b920c761c1b9e10ecc792e3d61e3fbac84
font_01_sfnt_off00007143.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7143 10052 bytes
SHA-256: 41692541e09fa8ac506f2d27be1b92c2025a55f8e3ae611efbb87e23aa16200c

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