Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d3e9949580b13a0…

MALICIOUS

PDF

40.5 KB Created: 2020-08-22 01:17:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a321d474c4ff90f624b823a7b83d8f17 SHA-1: a95a3506f261997c166f9fdd26f71bab83a7986a SHA-256: 3d3e9949580b13a0ca5ea059db426d926622ab2d202f1ab57750177da8f40b72
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector at `https://ttraff.ru/pify?keyword=pattern+astrology+app`. The document body, though heavily obfuscated, also contains this URL and references to an 'astrology app', suggesting a lure. The presence of a large number of external PDF links, many hosted on Shopify, indicates a link farm used to distribute the malicious content.

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.ru/pify?keyword=pattern+astrology+app In PDF document text
    • http://files.michaelcmarshall.com/uploads/1/3/0/7/130776828/16ff3fe8c.pdfIn PDF document text
    • http://files.bluemaxautotint.com/uploads/1/3/2/8/132814589/xofiwitaxigik.pdfIn PDF document text
    • http://files.btcjp.co/uploads/1/3/1/1/131164537/2738983.pdfIn PDF document text
    • http://nodapa.charlesheiner.net/uploads/1/3/1/0/131070043/vukuboribadod.pdfIn PDF document text
    • http://pazexebet.holmesroadchurch.org/uploads/1/3/1/4/131482976/dinodikeke.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/1/0432/2417/0659/files/anna_university_arrear_exam_time_table_for_regulation_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9897/2066/files/40670970694.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0785/8072/files/6833874825.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1283/2931/files/61475109307.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6836/6746/files/nokosarelupadu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6011/8175/files/19411242860.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5313/7576/files/kuxaxibupenofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2093/5590/files/cours_sur_la_loi_binomiale_1ere_s.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_off000061cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61CC 5088 bytes
SHA-256: 90d69507efc993520f4713edb854ee9ca10ccc47ad1183ada1de6687b606f41e
font_01_sfnt_off00007333.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7333 10184 bytes
SHA-256: c53dbd29382bc8d2a7cd2167ffaa17904983b84d30025131b2043bb88736e485

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