Malicious PDF — malware analysis report

Static analysis result for SHA-256 36c8ad46ebeb0934…

MALICIOUS

PDF

36.2 KB Created: 2020-08-18 19:15:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 109a0f0d1f148777dcb85201969c4cf8 SHA-1: 8c6083b171331a4b42c0d3a3a90a392c6596e2d6 SHA-256: 36c8ad46ebeb0934bfad25b257ce8595301ba536811e7e5b85d1342643b5d98d
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF contains a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=bus+racing+game++apk', which is designed to lure users into downloading a file. The document also functions as a link farm, with numerous embedded links to external PDFs, many hosted on Shopify. The presence of a 'download button' heuristic further supports the lure-based attack pattern. The primary intent appears to be delivering a second-stage payload via the redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=bus+racing+game++apk In PDF document text
    • http://files.treasured-one.com/uploads/1/3/1/1/131163590/4c26ed5f523.pdfIn PDF document text
    • http://files.kalanihighschoolband.org/uploads/1/3/2/6/132682663/6336281.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/1/0433/0058/5625/files/animal_crossing_pocket_camp_malaysia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7677/1224/files/1622782962.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3592/6434/files/defomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2036/0600/files/wobutexisos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/0842/9977/files/nozov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7281/3211/files/rajomewuweteduzujudubi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1140/5986/files/91060645738.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5843/8056/files/munofetonak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1872/9110/files/radioactive_aerosols.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6908/6619/files/94125265342.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 1

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_off00004f44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F44 5336 bytes
SHA-256: 01f3d7bc8ae814351c6c96e66a27639c3c346267db4023969f5c1eef23867608
font_01_sfnt_off00006153.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6153 10360 bytes
SHA-256: 646bc55426d0a1160bf89526b144c7bbd5d6d3ceb9b743099ed035dc716e8d2c

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