Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f10be99c2d1c510…

MALICIOUS

PDF

42.1 KB Created: 2020-08-09 23:20:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0194085d45362ec8ad969000b01cbfaf SHA-1: 1f50e0fc2425249dc6d8ecbb7cd89fa9cf995578 SHA-256: 9f10be99c2d1c510f2ae2d9bfc59819f9ec006f5e78ed63f17762b5eed872aff
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body and embedded links suggest a lure for a 'free download' of a popular productivity method, which is a common social engineering tactic. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to malicious sites or further stages of an attack. 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.cc/pify?keyword=the+bullet+journal+method+pdf+free+download In PDF document text
    • http://files.todayhousing.com/uploads/1/3/0/8/130814085/8890769.pdfIn PDF document text
    • http://files.fortlincoln.org/uploads/1/3/0/8/130874588/1e019.pdfIn PDF document text
    • http://files.loveliesandthings.com/uploads/1/3/0/9/130969603/9155400.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4669/0203/files/51304720216.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9360/6046/files/nejegaboremiberuvalawa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6246/8516/files/sewugubemaluzexula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9070/6599/files/nsfas_application_form_2020_download_dut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9850/5369/files/81430558657.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2492/5351/files/silent_hunter_5_mods.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2794/5889/files/prizerebel_points_hack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8184/2332/files/47935885743.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7630/4544/files/airport_codes_in_world.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1470/9663/files/16575573111.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0854/0324/files/audit_report_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0004/5465/files/53322542674.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/1436/0985/files/articulos_de_tanatologia_forense.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000055e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55E1 5192 bytes
SHA-256: 72fd8ffad7a04488a6dd98e5bf7d24d44d3091b02d7ddc04d20afaec9d642b39
font_01_sfnt_off0000676a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x676A 10612 bytes
SHA-256: 29306cf72d6d0965f2771c574ee2b71784baaed9c3676d8f34f0173901e34454
font_02_sfnt_off00008b7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B7D 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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