Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5e57f095795a2e3…

MALICIOUS

PDF

46.2 KB Created: 2020-08-18 17:57:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f86e0c2eb337d3b2ac39a003a52c7b30 SHA-1: 3a02e7d27a6f24159fd4cd802067874d6be0b110 SHA-256: b5e57f095795a2e3a6fd82b879dd44273a692a74becd719f92d34db339373aaf
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link that masquerades as a search result for a specific PDF document. This link, 'https://ttraff.cc/pify?keyword=management+accounting+and+control+system+pdf', is designed to trick users into clicking it. The document also hosts a large number of external PDF links, many of which point to Shopify domains, suggesting a link farm or SEO manipulation tactic to increase visibility for malicious content. The ML classifier strongly flagged this PDF as malicious.

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=management+accounting+and+control+system+pdf In PDF document text
    • http://vutug.eyebelieveeyecan.com/uploads/1/3/1/4/131437254/xusobowim.pdfIn PDF document text
    • http://files.mentalpraxis.com/uploads/1/3/0/9/130969297/4941655.pdfIn PDF document text
    • http://vopak.roundstoneenglishshepherds.com/uploads/1/3/0/7/130740572/taroteridekipo_nifowagakewarer.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/1/0437/3138/6517/files/axis_and_allies_board_game_rules.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7798/3653/files/26777204358.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8747/6389/files/pdfgeni_book_e2020_world_history_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0346/1283/files/jobofewabotijidikaga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1958/4166/files/41647583213.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6472/9512/files/facets_handbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3278/0701/files/fipeparu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7592/0282/files/south_america_map_hd.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6095/3249/files/60582370992.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4087/4408/files/8557625045.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1504/4254/files/byzantine_icons.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_off000074a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74A1 5580 bytes
SHA-256: 30a3e0be814c437f307568230380c3dd6d9763e12c27c80b8e9614e4d4d14e79
font_01_sfnt_off00008792.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8792 10588 bytes
SHA-256: 2dac16d74662f4245dd10780d2210177ddcd1b1fc8ed0226f9a28f18dbaeb2aa

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