Malicious PDF — malware analysis report

Static analysis result for SHA-256 901c380cca257b50…

MALICIOUS

PDF

46.6 KB Created: 2020-08-19 18:06:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 39a6a91c3b08eb355d08f5dc63a8f049 SHA-1: f5d24351a3741305cde905f7a1689d57b879e78c SHA-256: 901c380cca257b50ab07de90669054157e94d43d601f05cf1b64767df7dca535
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to ttraff.com. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to external PDFs, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the lure. The primary attack pattern involves directing users to malicious infrastructure via embedded links.

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.com/pify?keyword=chirutha+songs+free++telugu In PDF document text
    • http://files.burkholdernutrition.com/uploads/1/3/0/8/130814676/fofojujinumo.pdfIn PDF document text
    • http://files.ralle-medvac.com/uploads/1/3/2/8/132815767/viwotupusegibebamuf.pdfIn PDF document text
    • http://zuzini.jimmygeeauctions.com/uploads/1/3/0/8/130874163/widanipaji.pdfIn PDF document text
    • http://xesulazez.pyrographystore.com/uploads/1/3/1/4/131452922/3113384.pdfIn PDF document text
    • http:///\/www.sharelyrics4u.com\/2012\/12\/yamaho-yamma-song-lyrics-from-In PDF document text
    • http:///www.lyricsintelugu.com/2010/10In 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/1/0434/3490/1671/files/zigategizevezekesemos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8277/6729/files/35260214025.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6742/4412/files/62554225799.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4233/3087/files/amendments_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8580/7268/files/zuvafoxaritut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6706/1925/files/91885567623.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9424/4516/files/tupujevewuvibakisix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3885/1751/files/35256545794.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6839/1591/files/25941962527.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
🗂 Part of campaign: burkholdernutrition.com 5 samples

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_off000071de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71DE 4936 bytes
SHA-256: a07bf3e7412012c8641855411b8b845bf79aaf69ef2fd263edcd3921c6e06d4a
font_01_sfnt_off000082a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82A2 13632 bytes
SHA-256: 5ba9bd97e764373700160a5bd9fa21be257feb22d56a32463742b55beed001f6

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