Malicious PDF — malware analysis report

Static analysis result for SHA-256 227483c02cfb3d58…

MALICIOUS

PDF

45.1 KB Created: 2020-08-18 21:42:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aa510df2ba2b111d94326dcd813afcf3 SHA-1: a334e8303ef8d1ece9a03dcf2b9399fb10e543fb SHA-256: 227483c02cfb3d58f56dcb38bc59cadd16d2f5614c5c1a7c1d9858b544140922
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical heuristic firing for a malicious redirector. The primary malicious URL is https://ttraff.cc/pify?keyword=hallelujah+guitar+chords+pdf, which is likely used to redirect the user to a malicious site. The document body contains garbled text but includes the same malicious URL, suggesting an attempt to disguise the malicious intent with a seemingly innocent topic. No scripts were extracted, but the PDF structure and embedded links strongly indicate a phishing or redirection attack.

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=hallelujah+guitar+chords+pdf In PDF document text
    • http://piziruli.sethallenyoungphd.com/uploads/1/3/2/8/132814718/9912070.pdfIn PDF document text
    • http://regodewop.cypruskennelclub.org/uploads/1/3/1/3/131384600/guzopovip.pdfIn PDF document text
    • http://files.healthybeauty365.com/uploads/1/3/0/7/130776745/ruloj_tiwilamunuv_nozixeri.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/1/0437/1978/6645/files/classification_of_antibiotics_according_to_mode_of_action.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2805/2130/files/sewepurame.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6230/3637/files/bteb_ssc_exam_routine_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6332/9446/files/3647933558.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1565/9942/files/upbte_syllabus_3rd_semester_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/18410569865.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2340/8023/files/75296167364.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1250/5252/files/98480080511.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6226/2936/files/xarejow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3939/9842/files/nesufajedew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5299/8556/files/75114587993.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 2

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_off00005b2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B2C 5228 bytes
SHA-256: 4fa4a60cbf4cb2e1dd6249db4e6210615cfb829738a6507cd856eb66df83a5b7
font_01_sfnt_off00006d0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D0A 14156 bytes
SHA-256: 17e919acb7bc8fd54ae5071350f3be43b7e83d6085159ce5419bf17079f2c8dc
font_02_sfnt_off00009969.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9969 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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