Malicious PDF — malware analysis report

Static analysis result for SHA-256 5dd6a2b5f129980a…

MALICIOUS

PDF

43.8 KB Created: 2020-08-09 11:16:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 47f62826e5cdd9cce64be68659ed0549 SHA-1: dc868ad5709e21439139d6e6d8c7879e3f06f8ee SHA-256: 5dd6a2b5f129980a08c06a84836fee90b0697f36c5bfd9344bbdc7b5aaf85cb7
194 Risk Score

Malware Insights

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

The PDF contains numerous links, with a primary redirector URL identified as malicious. The document body, though heavily obfuscated, contains text referencing a tutorial and the malicious URL, suggesting a lure for phishing or malware delivery. The ML classifier strongly indicated maliciousness, and the presence of a redirector link points to an attempt to lead the user to a harmful destination.

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=adobe+after+effects+cs4+tutorial+for+beginners+pdf In PDF document text
    • http://files.missspic.com/uploads/1/3/1/3/131384374/a1047c.pdfIn PDF document text
    • http://files.digitalmuseumofwomen.org/uploads/1/3/0/7/130776225/mokaxekoxa.pdfIn PDF document text
    • http://fugaperum.kilbrittaingaa.com/uploads/1/3/0/8/130814328/1254678.pdfIn PDF document text
    • http://files.prefactortech.com/uploads/1/3/2/6/132680870/9956782.pdfIn PDF document text
    • http://files.trappecreekphotography.com/uploads/1/3/1/4/131437977/2370464.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/1/0432/4678/0566/files/exercice_algorithme_corrig_debutant.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6091/2537/files/dolamuwurazipivoze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8260/3927/files/1714212080.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9416/3102/files/60816805752.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8443/9971/files/bofikixibuvebowumakivuxem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6187/7665/files/zokazukib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5845/3918/files/93107648210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/0326/1606/files/carbohydrates_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wuvinotagug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6897/2444/files/lenugubegisozemifopisez.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 6

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_off00006d12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D12 5540 bytes
SHA-256: 21c15a5b1ec9e14b7661474ce88ad565dad7ecd82aae450506d66de8ea09b4e7
font_01_sfnt_off00008001.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8001 10020 bytes
SHA-256: f67df63631c9c0b6b515afdcb9f7c1ba10d40327726f6a82112a3acc97d3348e

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