Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fd06d59cc47a247…

MALICIOUS

PDF

88.0 KB Created: 2020-08-04 02:51:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7892911f1d951a731b64f7f437c2bb4f SHA-1: fdc0d7f453796d08a1e5cf30a75b4f4d8d2468ec SHA-256: 1fd06d59cc47a24798c41fc4ae0cdaf00df0f2f42fe19676959dcea703309e26
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains the string 'Apprendre l italien pdf gratuit' and the malicious URL, indicating a lure for users seeking free learning materials. The redirector URL likely leads to further malicious content or exploits.

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=apprendre+l+italien+pdf+gratuit In PDF document text
    • http://files.pureessentialslightcenter.com/uploads/1/3/1/4/131406149/505fe384f4d.pdfIn PDF document text
    • http://files.natethehitmaker.com/uploads/1/3/1/0/131071067/db5278a9861.pdfIn PDF document text
    • http://files.janemcdowellart.com/uploads/1/3/0/8/130814397/3538ec40f1.pdfIn PDF document text
    • http://files.marcatunm.org/uploads/1/3/2/8/132814400/8ca76449ee.pdfIn PDF document text
    • http://files.makercrew.com/uploads/1/3/2/6/132681586/8108622.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/1/0433/6038/7227/files/rosiru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9714/2936/files/davajelagovewiwimaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4686/2997/files/44181791213.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2811/7661/files/41726316210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2539/2035/files/37687633275.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1038/1208/files/introduction_to_modern_astrophysics_carroll.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9964/4314/files/fadag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7337/1288/files/39424967906.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8344/0030/files/12054226544.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3810/3962/files/93013987522.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6213/2897/files/52235492678.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tefukina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/malware_wmi_event_consumers.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_off000117f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x117F8 5020 bytes
SHA-256: 792d9f8e8668026de97c8504844ca311a28f78de95aa55dcabff6508bc058e28
font_01_sfnt_off00012921.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12921 12808 bytes
SHA-256: dffca61b1adb248fbbeb77680de92e825608789d7ec6ac6552818e5f49b1f5b0

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