Malicious PDF — malware analysis report

Static analysis result for SHA-256 1122b783221fa9b2…

MALICIOUS

PDF

42.3 KB Created: 2020-08-12 04:29:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 76373fced24b70f6c3a07fe1c8387a35 SHA-1: 2370c6b2579edff32658d0c008e97c616f73597d SHA-256: 1122b783221fa9b2c43d0c36bf4532716f0335034948569c2491faf3f571adf6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, including one pointing to a known malicious redirector, suggesting a phishing or scam attempt. The document body and embedded links are designed to appear as educational material, likely to trick users into clicking the malicious URL. The ML classifier strongly indicated maliciousness.

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=6th+grade+fun+worksheets+pdf In PDF document text
    • http://files.necropheliaclothing.com/uploads/1/3/2/6/132682819/sopifitepera-zasosonajo-xajaziz.pdfIn PDF document text
    • http://files.eaglesunifiedbooster.com/uploads/1/3/0/7/130740257/gifoligedafus.pdfIn PDF document text
    • http://jewoput.simplycakesmiami.com/uploads/1/3/1/4/131437987/nasetetopigegi_lewewanenopisaj_baxaxi_letokesav.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/1/0434/2317/0710/files/5e_criminal_background.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0668/1497/files/34889659182.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2412/9953/files/libro_biopsicologia_john_pinel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6332/8418/files/tozajenijibaseni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/craigslist_org_kalamazoo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3859/7539/files/1641109132.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4847/6572/files/blitzkrieg_bop_chords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8158/7095/files/97835011374.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7406/8390/files/56332461736.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2508/9191/files/66960168847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7382/2102/files/transistorized_ignition_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4980/3166/files/fakukatiwuti.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 5

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_off0000592e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x592E 5320 bytes
SHA-256: efc7fc492963ccc177211ae31789ce1c69d54919445218ddc6679785f9372aae
font_01_sfnt_off00006b49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B49 10140 bytes
SHA-256: 49829eec57366a0965703563b30fa4fe57abfb3c9d0b5c51f5b8a4e75cede6c4
font_02_sfnt_off00008dfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DFB 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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