Malicious PDF — malware analysis report

Static analysis result for SHA-256 62a72edfb027b71c…

MALICIOUS

PDF

52.2 KB Created: 2020-08-10 03:44:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5345ee4e1a41313a4ce531fa30965a16 SHA-1: 9ee5fc7fa4295b812d1d6ddba3963e50308e673d SHA-256: 62a72edfb027b71c4ef46cb1d27d48433d68248c5bc5dba1d345dbf336dd2ffe
194 Risk Score

Malware Insights

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

This PDF file contains numerous links, many of which point to a redirector service known for malicious activity. The document body and heuristics indicate a lure for free downloads, likely a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect users to malicious sites, potentially for further exploitation or credential harvesting.

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=afghanistan+war+books+pdf In PDF document text
    • http://files.saradps.com/uploads/1/3/1/3/131381839/gumevafadobi_zupakofajabi_pazatagivik_vofoko.pdfIn PDF document text
    • http://files.seraphimschool.com/uploads/1/3/1/6/131636654/3512908.pdfIn PDF document text
    • http://files.metronbi.com/uploads/1/3/0/8/130814492/2535805.pdfIn PDF document text
    • http://files.centerschoolpto.com/uploads/1/3/1/8/131856042/d11b9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9795/6258/files/free_brush_calligraphy_practice_sheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6950/4662/files/reset_synology_nas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/loxidunadubufurepetiverox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3471/9909/files/ligedino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9578/5621/files/91824725847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90209356055.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6274/6517/files/18920832504.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3220/5722/files/bukibulexegagukewab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5488/1175/files/my_backup_pro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0409/9735/files/jidizulelusidik.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000819d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x819D 5228 bytes
SHA-256: dff1acd277873cd4bf958db810a8fcb15aac73292e9307ab9e5e13c09b9684da
font_01_sfnt_off00009358.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9358 10012 bytes
SHA-256: 107ae92f9075c8951958aa4377620d1b1653be6d6d2c32ad33789e41ae890458
font_02_sfnt_off0000b597.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB597 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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