Malicious PDF — malware analysis report

Static analysis result for SHA-256 147bda571ad3eaa5…

MALICIOUS

PDF

44.7 KB Created: 2020-08-28 16:08:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 611d28036c53f59bf332ea9bb89369bf SHA-1: 85b1c960568c4a242a18e8394e36d69559e797d0 SHA-256: 147bda571ad3eaa5be6516aa446448c58a8068617b1833411f8ab083037398d4
194 Risk Score

Malware Insights

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

This PDF document contains numerous links, many of which point to a redirector service that is known to host malicious content. The primary lure appears to be a 'free download' disguised as a hiking guide, leading to the malicious URL https://ttraff.cc/pify?keyword=appalachian+trail+hiking+guide+book. The ML classifier strongly indicates maliciousness, and the presence of a link farm suggests an attempt to distribute malware or phish for credentials.

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=appalachian+trail+hiking+guide+book In PDF document text
    • http://files.wstfcure.org/uploads/1/3/0/8/130813985/3406118.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9493/3665/files/68832250386.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6340/2905/files/alaska_road_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/dokujuxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mafimovudowejiner.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5475/9069/files/bapipekuwejoger.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6832/4005/files/81534749630.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7650/2182/files/ant_man_2015_movie_in_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/2533/4171/files/buzizojiduporafawugedir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/5959/7732/files/my_talking_angela_cheats_apk_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3630/2750/files/kidibewa.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000638a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x638A 5232 bytes
SHA-256: 14743b665581e485fd5852bc529daa05009c10583fc0e71302cb7f6e0cb84b2d
font_01_sfnt_off0000752e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x752E 10124 bytes
SHA-256: ec035ac8f3964c51efe8c9009b0c1d8e1b7f98a41d1932e996cbbc91ff926127
font_02_sfnt_off000097ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97CA 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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