Malicious PDF — malware analysis report

Static analysis result for SHA-256 056221e69e27a018…

MALICIOUS

PDF

52.5 KB Created: 2020-08-17 05:18:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f4b0b1648af2416b7266e630fddcb956 SHA-1: 47ef71b5ef5277a0e01c6d1f0261fb71d8f29cf2 SHA-256: 056221e69e27a0187f55cfccbb0d8121c6834e3ef3b3feb68accc1b91cb5de3b
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which point to a redirector service. The document body, though heavily obfuscated, contains a URL that leads to a redirector, likely intended to phish users with a lure of 'free yoga content'. The ML classifier strongly indicates maliciousness, and the presence of numerous links suggests a link farm or SEO poisoning tactic.

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=bipasha+basu+yoga+free In PDF document text
    • http://wawel.kellyannecostello.com/uploads/1/3/1/1/131164250/b29fb3126841a.pdfIn PDF document text
    • http://files.paulinedodd.com/uploads/1/3/1/8/131871705/teleduwaseruluxalafo.pdfIn PDF document text
    • http://files.runcietatnall.com/uploads/1/3/1/4/131454355/lurodonebakuxugage.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4048/0164/files/amniotic_band_syndrome_adalah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2652/0987/files/warhammer_bestiariusz_chomikuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4841/8971/files/wuripeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7280/5277/files/chapter_zero_fundamental_notions_of_abstract_mathematics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9419/5870/files/59353705626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2008/2590/files/mafomipukawazojar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8298/1278/files/ielts_bar_chart_sample.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6595/6760/files/51897717752.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8784/5790/files/99_names_of_allah_coloring_pages.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71062637782.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: apexbait.com 3 samples

Related samples 6

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_off0000708c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x708C 5420 bytes
SHA-256: 7cdbe8551fa4b986dc480e2d3fbf4e52e60b2354030a3bd578e1202d07353485
font_01_sfnt_off000082fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82FC 10468 bytes
SHA-256: e7de17a5c918a5af8d1a457f021117136f62ba4f9b70980e7715378c1761e091
font_02_sfnt_off0000a71f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA71F 9208 bytes
SHA-256: e332b2de25fc9290b7c5098862bf9b30c28e180ae5f507d55364e1f4f044e06e

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