Malicious PDF — malware analysis report

Static analysis result for SHA-256 01327ab20c5ab4ee…

MALICIOUS

PDF

40.0 KB Created: 2020-08-21 05:01:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e15d9418330bf59ca74bfed1fc3f411c SHA-1: 46ec0fab2fd79078b0b818613f4c209e6c21aced SHA-256: 01327ab20c5ab4ee3a64be00e829bc0a5bebbfcb477b56cd73d337b58efae8f8
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a redirector infrastructure associated with malicious activity. The document body, though heavily obfuscated, contains text related to "Windows 7 iso 64 bit free" and a URL that appears to be part of a link farm designed to attract users searching for software downloads. This suggests a phishing or scam attempt to redirect users to potentially harmful content.

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.cc/pify?keyword=windows+7+iso++64+bit+free In PDF document text
    • http://files.gabriela.is/uploads/1/3/2/6/132681698/fuwexubekoli.pdfIn PDF document text
    • http://files.theleannefund.org/uploads/1/3/2/6/132696112/77b61946db8c54b.pdfIn PDF document text
    • http://jogemexal.phillytypewriter.com/uploads/1/3/0/7/130739695/xisefinilu.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/1/0435/2363/7399/files/43594072217.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2611/0888/files/manual_basico_de_administracion_de_empresas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2383/4024/files/comune_di_campoformido_imu_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/4002/6273/files/abnormal_psychology_david_barlow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1437/4054/files/44334877852.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4255/9384/files/dowiruxotarilatenivixoxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8211/3433/files/8618927112.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7574/7484/files/conformation_of_cyclohexane.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4421/6727/files/jukobinifonolixepuxa.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_off00005f13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F13 5224 bytes
SHA-256: 2c40a0ffabaa015dd10faab0d124a769a7384ba7d8ed27587dd9d99b84975b81
font_01_sfnt_off0000710e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x710E 10244 bytes
SHA-256: 53b7d5ed9524fc728f2ff8dc382f5edc00b03522f679661ea9545e31f0667dcc

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