Malicious PDF — malware analysis report

Static analysis result for SHA-256 03d5e33988c644dc…

MALICIOUS

PDF

47.2 KB Created: 2020-08-09 18:20:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 11d32b6dcbca300ee5d8f747eecc48a0 SHA-1: 7af27ae840415f82c7b2ab6a04b6687a61e46865 SHA-256: 03d5e33988c644dca1e2a0987ba831fbc717fe29dcdb3903d22cdfe6256f3bcb
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many of which point to redirector infrastructure identified as malicious. The document body, though heavily obfuscated, contains a URL that is also flagged as a malicious redirector. This suggests the primary purpose is to redirect users to malicious sites, likely for phishing or to download further malware.

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=convexity+meningioma+pdf In PDF document text
    • http://files.sneakermutt.com/uploads/1/3/0/7/130776164/434337.pdfIn PDF document text
    • http://files.valskountrycorral.com/uploads/1/3/1/0/131070230/7540802.pdfIn PDF document text
    • http://files.uniquedobermans.com/uploads/1/3/2/6/132681556/3f1bfc6.pdfIn PDF document text
    • http://files.srepto.com/uploads/1/3/2/7/132710491/vuliraz-poditaxurisut.pdfIn PDF document text
    • http://files.powermechanical.com/uploads/1/3/0/8/130814172/bf4f013.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/1/0431/0702/5056/files/fejasuzi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7379/8298/files/4420690042.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5287/6455/files/10464579624.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0883/5234/files/stream_of_consciousness_in_mrs_dalloway.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7543/6698/files/jerufosoge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9831/6707/files/10189511028.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9136/5792/files/vertical_aerial_photography.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4482/3452/files/absceso_gluteo_tratamiento_antibiotico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2670/2758/files/dugab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fikikotiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5502/2234/files/nakenipugofijitixu.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_off00006d93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D93 5096 bytes
SHA-256: 3b99e95e4a47176be84b98d66b5d43cbf1a662ce8bc3359bd9718e4de7e49e18
font_01_sfnt_off00007ef1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EF1 10160 bytes
SHA-256: 8bd4df4ebd453e2c622749461a80eec5c9c1256982178bd76f19ed599e08078c
font_02_sfnt_off0000a1a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA1A0 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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