Malicious PDF — malware analysis report

Static analysis result for SHA-256 47b7f2a9ad096dc5…

MALICIOUS

PDF

40.5 KB Created: 2020-08-20 20:59:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5a8a6ca70ebc35f0bf20e03ab07c74d1 SHA-1: cb0fc13db0059fbf684c5d1465d8b3aef2da8d1a SHA-256: 47b7f2a9ad096dc52ae8a3ad31c5f29b8b5eb5d492db0f851e55d5dd7a383215
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1200 Hardware Add-Override

The PDF contains multiple embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to an 'Identifying conflict in literature worksheet' and includes the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of numerous external PDF links further indicates a link farm or redirection strategy.

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=identifying+conflict+in+literature+worksheet In PDF document text
    • http://files.ramslegacy.net/uploads/1/3/0/7/130738955/kekozimopeveke.pdfIn PDF document text
    • http://files.myfathershouseworcester.org/uploads/1/3/1/3/131379946/11d7caa3fa294d.pdfIn PDF document text
    • http://vufud.kmid.com.au/uploads/1/3/1/6/131606156/2150784.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/1/0433/5144/1563/files/39652807404.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1350/3133/files/40421093244.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8094/9659/files/pojaninadevikuwevopitepo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2650/4086/files/wubodikow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9237/5704/files/kukemituzo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2229/3920/files/27098699212.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3336/9503/files/bilifalifuwebol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8840/2839/files/6600775198.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2639/8888/files/78440505504.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0910/6332/files/85740365531.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_off00006040.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6040 5480 bytes
SHA-256: 85f672413212fe65250a3128b0d42596ba10f696314c492ba91ba69089b312f7
font_01_sfnt_off000072ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72ED 10004 bytes
SHA-256: 674fcaaa3110f29f13b3cacf96092c96cea083e2c36f7c6b3bf3648ae325db15

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