Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0b9910cbd1657d1…

MALICIOUS

PDF

34.3 KB Created: 2020-08-17 07:40:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dcc313a3b9cf8fda6581c3c513422e54 SHA-1: 0bb176fd90af3a6fb821236ac1620e891c12521c SHA-256: b0b9910cbd1657d1df49a1a7dbfe8bcef8bc19881e265a26653a4a7be23621c1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as a virus cleaner. This indicates a phishing or social engineering attempt to redirect the user to malicious content. The PDF also contains a large number of external links, many pointing to Shopify, which is characteristic of SEO link farm abuse. No scripts were extracted, but the presence of the malicious redirector and the link farm strategy strongly suggest a malicious intent to lure users to harmful sites.

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=virus+cleaner+antivirus+max+apk In PDF document text
    • http://raral.simonestawicki.com/uploads/1/3/1/8/131856772/312519.pdfIn PDF document text
    • http://sedod.drinkgreatteamarketplace.com/uploads/1/3/1/6/131607163/2847787.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/1/0436/7217/4745/files/fur_elise_piano_sheet_music_beginner.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5050/8181/files/cells_of_the_immune_system_student_worksheet_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1218/4474/files/33724959121.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7888/5280/files/princess_diaries_book_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1110/5191/files/55375051748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6337/8081/files/16378614891.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2514/5760/files/61074935221.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1729/8329/files/asidosis_metabolik_dan_respiratorik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2631/7473/files/ggplot_line_thickness.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2398/1979/files/67890778187.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9277/8912/files/xajimogelidor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8433/2710/files/digimon_adventure_psp_english.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 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_off000047c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47C9 5236 bytes
SHA-256: aa2153c5162885f239a3c284e4c3b03b16d1180b87b2c9865cbcf85ca405596b
font_01_sfnt_off0000598b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x598B 10276 bytes
SHA-256: 6cf634ed1aeac27564370d02b1ad4bacf7e7ecd3a44c65cd6208edd29d1479c5

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