Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7af0bb3f397dcd8…

MALICIOUS

PDF

42.5 KB Created: 2020-08-13 21:35:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: af0b6bcc3a558eb93ca3f282417038df SHA-1: 762dfc2c426f35acfcf3ab4f8e3940f1c198800f SHA-256: b7af0bb3f397dcd884da66e24f60d343c638f3a508202e703810c30a98ae7bb8
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though partially corrupted, contains text related to 'instagram story template' and the malicious URL, suggesting a social engineering lure. The presence of a large number of external PDF links, many hosted on shopify.com, further supports the SEO link farm heuristic.

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=love+instagram+story+template In PDF document text
    • http://files.johnblanke.com/uploads/1/3/2/3/132303286/5245317.pdfIn PDF document text
    • http://files.noragoetz.com/uploads/1/3/2/7/132712006/damolife_guwevezikivoz_zamisariwidal.pdfIn PDF document text
    • http://lifofawo.chantelclucier.com/uploads/1/3/2/6/132681670/7605070.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/1/0433/5029/4678/files/18387635968.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8575/8628/files/98847407198.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5247/4280/files/zatapinotigajolifapu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2727/4647/files/57855283258.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3019/9966/files/3934628844.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1035/1513/files/40271384351.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5866/7430/files/dilakiwitalepomagofol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3153/5509/files/teknik_bibliotherapy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6549/1107/files/convert_to_grayscale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4071/0562/files/capteur_d_humidit_du_sol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4607/5542/files/agile_software_development_methods.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0310/8768/files/postal_acknowledgement_card_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4506/0762/files/got_house_words.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7678/0192/files/31485191005.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1357/6603/files/afcat_mock_test_2020.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 6

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_off00006632.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6632 5240 bytes
SHA-256: f2d22453c7a60f9183bab9496aa94e49170dd15f501c7a8c1308f9c2814dd4a3
font_01_sfnt_off0000780a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x780A 10900 bytes
SHA-256: ea419a14da57578de0369ef2bcec54f623062d6a4dcbd2b5baa0f49d90d2e428

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