Malicious PDF — malware analysis report

Static analysis result for SHA-256 05130e7820837457…

MALICIOUS

PDF

44.8 KB Created: 2020-08-09 10:46:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5c336c03c3fe62efc828cc0d8e1a4ab6 SHA-1: 580db224aafc561b3420377410f7bf6c12c4f72d SHA-256: 05130e7820837457d989174c03c99b05a3368f7b9cf19853c0d9b261539dc119
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically identified as a redirector at 'https://ttraff.ru/pify?keyword=weekly+tax+table+pdf+2020'. The document body and heuristics suggest a lure related to a 'weekly tax table pdf 2020' to entice users to click the malicious link. The ML classifier strongly indicates maliciousness.

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.ru/pify?keyword=weekly+tax+table+pdf+2020 In PDF document text
    • http://files.talkincorporated.com/uploads/1/3/2/7/132712163/vewipixosowerag-sibufut-lavenebovowomop.pdfIn PDF document text
    • http://tekeg.shockersbaseball.net/uploads/1/3/1/3/131380429/9c02ad4e19.pdfIn PDF document text
    • http://mopobi.scholarwanders.com/uploads/1/3/1/4/131483254/7045dea.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/1/0428/5802/1027/files/89699856846.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5295/6838/files/lekerolasid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3022/3775/files/koxoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6983/2354/files/ketelatid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7564/9180/files/job_interview_letter_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5942/0063/files/construction_supervisor_license.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3396/8287/files/avenged_sevenfold_afterlife_tab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6587/6379/files/5873706639.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2668/5858/files/46615813209.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9430/1085/files/moduzojoro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9522/6523/files/lovinimitoxaxepajeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9325/3526/files/operation_barbarossa_nigel_askey.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 2

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_off00006fc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FC2 5420 bytes
SHA-256: 266cadff5d34d1e59feac5555af780666fa7e08c90acc4b4f7e484c73191ecdc
font_01_sfnt_off00008266.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8266 10604 bytes
SHA-256: 0ab9cd006d50ed59a52e58023ad8fa666ac8417e92e2da0f47f6e6d85f672f94

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