Malicious PDF — malware analysis report

Static analysis result for SHA-256 f53f0054200a1e2f…

MALICIOUS

PDF

51.8 KB Created: 2020-08-25 19:11:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3a9447a63d33281a545895f78d9aab2b SHA-1: 02b3bdc7f7b588ece224fcdb6308215122324399 SHA-256: f53f0054200a1e2fa7f54214ae3dd17d1de5f8a94bdcf1803598f4f153c949c9
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=operations+management+sustainability'. This indicates the document's primary purpose is to redirect users to potentially harmful content. No scripts were extracted from this sample.

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=operations+management+sustainability In PDF document text
    • http://files.fritzpolzer.com/uploads/1/3/2/3/132303229/sokubanusa.pdfIn PDF document text
    • http://files.thebigbarmitzvah.com/uploads/1/3/1/8/131871597/vilarobolobaku-vuxawavavuwef.pdfIn PDF document text
    • http://fasasoze.courtneyfiles.com/uploads/1/3/0/7/130776485/guwotixo_gewirasiko_kelawixetur_kaweruzexu.pdfIn PDF document text
    • http://files.lethbridgeroofingco.com/uploads/1/3/1/4/131407424/5287970.pdfIn PDF document text
    • http://files.thetcvallartaproperties.com/uploads/1/3/1/6/131637150/1a72e08252aa.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/1/0433/0291/2168/files/damepuxubafusanepefafuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4025/0775/files/feeding_guide_for_gamefowl_chicks.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8226/1415/files/leveling_guide_classic_rogue.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/4576/4510/files/dividends_declared_in_balance_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/3868/7641/files/fapuxoxewutudorifafavi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5900/9943/files/pijijatugutunerojilix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1020/3556/files/wukowogamapow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4649/3605/files/chinese_action_movies_2015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2886/3397/files/28213890370.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_off00008c5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C5D 5408 bytes
SHA-256: e3e83aca434e6ba537ee5150892dede4d932a41d0a4f661b75131b237c389ced
font_01_sfnt_off00009ea6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9EA6 10556 bytes
SHA-256: c7c14ffeaf46cc9217f8664473f56c552fdccdcb893b9e3e2cb81d001dc5e5d4

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