Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c7952787086dd5a…

MALICIOUS

PDF

46.4 KB Created: 2020-08-03 10:20:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ed1a2fa34ba31f108ae8ed2f307e3521 SHA-1: 7977f8c2704f714b9595d82bf3ce0a939b3086b3 SHA-256: 8c7952787086dd5ab6501564e339eebe32cd656c8b6ecde375a34dbe07c28fda
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many of which point to a redirector service known to host malicious content. The primary redirector URL is https://ttraff.cc/pify?keyword=init+d+script. This suggests a phishing or malware distribution attempt. The ML classifier strongly supports the malicious verdict.

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=init+d+script In PDF document text
    • http://files.smhswarriorclub.com/uploads/1/3/1/4/131437680/pinerunasu.pdfIn PDF document text
    • http://files.outdoormissadventures.com/uploads/1/3/2/7/132710627/da91e1a3a02d9.pdfIn PDF document text
    • http://files.jovaunholmes.com/uploads/1/3/0/8/130873973/818c81.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/1/0435/1698/5508/files/29619553313.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7400/9753/files/19936174423.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7369/0017/files/xufemoralipepojoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/18187133080.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3866/9976/files/nilinazuvarovitolixizuni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6885/8280/files/kizanuwazojodopu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1096/5147/files/65289035368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/43692268827.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0450/9853/files/80715128979.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6809/6661/files/vawadevodimetalez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0809/0535/files/15598410029.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4474/8950/files/rekakawekizakepo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4453/6473/files/fusatikenazaseguz.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62B2 4320 bytes
SHA-256: 728ed0570acc0a1ecbe6dab40c1af53d289ba3e485ea5e573afbc1c22450da77
font_01_sfnt_off00007156.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7156 14640 bytes
SHA-256: 9687d2943083fcf91b476af2efc7b3e5596f86e66c0720c2d110c70d89667f96
font_02_sfnt_off00009ecf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9ECF 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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