Malicious PDF — malware analysis report

Static analysis result for SHA-256 441bbc4068a54015…

MALICIOUS

PDF

46.6 KB Created: 2020-08-04 09:40:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3ab63fe02c7b717c99ef4d2496f2cc58 SHA-1: 48a7e2343dc2509e2ba6400d45d8361e993b6e87 SHA-256: 441bbc4068a54015ffcfce1e6c30a6b4c958863003b2a4e33f7d5ae8683c11d4
214 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious Link T1566.002 Spearphishing Attachment

The PDF file contains a lure instructing the user to enable editing, which is a common technique for malware delivery. It also contains a high number of embedded links, with one specifically identified as a malicious redirector. The primary malicious IOC is the redirector URL, which likely leads to further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Macro/content-enable lure medium SE_ENABLE_LURE
    Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
  • 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.ru/pify?keyword=candy+pdf+splitter In PDF document text
    • http://files.ourfamilyunion.com/uploads/1/3/1/4/131406717/tomidedelavik.pdfIn PDF document text
    • http://files.luxtan.lu/uploads/1/3/0/7/130775583/12ebd716.pdfIn PDF document text
    • http://files.global-migration-of-african-cuisine.com/uploads/1/3/2/6/132681880/6647935.pdfIn PDF document text
    • http://files.dibaseballschool.com/uploads/1/3/1/6/131606630/5765943.pdfIn PDF document text
    • http://files.esthermilesart.com/uploads/1/3/1/4/131438418/4815210.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/1/0437/8905/8209/files/19337437679.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5633/9871/files/xaxuneze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8102/3132/files/zuvuvamet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5743/0176/files/8443962459.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1540/4702/files/71649670790.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0319/9138/files/xusosu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0094/5048/files/pisutirawexuborir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9812/0094/files/53735480431.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1060/2661/files/8987485247.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7532/1499/files/kawepadagatujen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6686/0455/files/getewevan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0686/8126/files/99321406961.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9733/3664/files/35448910557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4639/6326/files/41989992517.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_off00007943.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7943 5040 bytes
SHA-256: b8ba05e0504af9500da9995764b34ae99822c10dd7556499915a60721b2c9389
font_01_sfnt_off00008a82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A82 10236 bytes
SHA-256: 3ace2377058e6e8d2ac7033ce0d6807e95b5e48981b989087d122d29c884f9cf

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