Malicious PDF — malware analysis report

Static analysis result for SHA-256 e892860e50252522…

MALICIOUS

PDF

44.1 KB Created: 2020-08-14 06:43:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 476b3e41d049ba6aa46eda58fc98402a SHA-1: 2bf9179060e2a21f82c5753eda7c38cd045458c2 SHA-256: e892860e50252522dd5651432d114675004b67cba9f0e91610257c5110fce334
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains multiple embedded links, with a critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains text related to a 'school financial report' and includes the malicious URL. The presence of a link farm heuristic further suggests an attempt to distribute malicious content or engage in SEO abuse. The primary malicious IOC is the redirector URL, which likely serves as a gateway to a phishing or malware distribution site.

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=school+financial+report+pdf In PDF document text
    • http://files.ocburritoproject.org/uploads/1/3/2/7/132712315/fegudekeg.pdfIn PDF document text
    • http://files.reillycyclingtours.com/uploads/1/3/1/1/131164573/d22301df2b285.pdfIn PDF document text
    • http://raduri.communityprepalumni.com/uploads/1/3/0/9/130969724/3441496.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/1/0430/8749/5321/files/17173553460.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8896/0933/files/96400329980.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2371/9845/files/danusowavabigiladurikidis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9486/8122/files/24666245743.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3667/2162/files/gurupedagilunawetasolefol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2946/2165/files/bollywood_latest_movie_site_name.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2476/0484/files/13429205653.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9865/1288/files/sixelowumupuforusofo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8820/7254/files/86232976279.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0755/6258/files/wewukiwefopob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5461/9041/files/41939364069.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3731/0632/files/wifovezurifefabizuza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6753/9623/files/defowabetedadiba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4953/3088/files/80814431392.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_off00006ea0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EA0 5168 bytes
SHA-256: 317a046e5e9c19449f633738a6e5e7727f941a0ed67fbff8f285f2eb68f68df1
font_01_sfnt_off0000801b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x801B 10424 bytes
SHA-256: 2d39bb3cd27924384b1e11f0bb67408bc017804af14c85b376489139354d0e49

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