Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f75e1856d47523a…

MALICIOUS

PDF

45.5 KB Created: 2020-08-23 07:06:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 67fcac159df8295cb1da024cce738229 SHA-1: fa9cb4b35c47172e18b7f9b776cfe797d29caa36 SHA-256: 2f75e1856d47523ae197c480f112f7456581c5ca3f0ec3f332c279cc916d5af5
202 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific malicious redirector URL, indicating a phishing or scam attempt. The presence of a 'download button' lure reinforces this. The document body, though heavily obfuscated, contains the malicious URL. The PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics confirm the malicious nature of the embedded links.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=community+helpers+worksheets+free In PDF document text
    • http://files.shesthefirstwisconsin.org/uploads/1/3/2/7/132712006/dapuvizupedana.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/1/0431/1551/1968/files/laponovafewusijos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5832/3865/files/vuporajukexedewi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8176/0935/files/fivefizesosetojotajak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6591/5032/files/meneroxuzowopewege.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9116/3291/files/falodoruzipoxovulado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2480/9122/files/colonialism_definition_by_scholars.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0191/3244/files/56134619159.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3532/7653/files/91637595025.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6525/3789/files/john_deere_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6623/7852/files/30485793061.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5949/4555/files/nodexule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/1351/3889/files/botines_plataforma_negras_mujer.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 5

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_off00007408.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7408 5092 bytes
SHA-256: 655f7c741834458faa259aaac80dcc0a11a3ccfd2f39a7a0dfbcbad04f0b4497
font_01_sfnt_off00008548.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8548 10460 bytes
SHA-256: 27cb9d8e574432487ab6068bdb8cf63024a32711da5cfc8217093af75e959aa9

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