Malicious PDF — malware analysis report

Static analysis result for SHA-256 920f8f22c278f1b9…

MALICIOUS

PDF

59.8 KB Created: 2020-08-14 03:36:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 64b7eb33a736ae24eec4586b416befdc SHA-1: 3340f0fe2b2a60f8213805d533393f510e2260b7 SHA-256: 920f8f22c278f1b9464d478e69d6c175ca1d87b973da7270f463bff3da83582c
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link and a link farm, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains text that appears to be related to a lottery or prize, aligning with the 'Advance Fee Scam Lure' heuristic. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to a further stage of the attack.

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=born+to+run+song In PDF document text
    • http://dogage.pennybrumbaugh.info/uploads/1/3/0/7/130740019/pagubalom-limigusosiza.pdfIn PDF document text
    • http://mipurux.saralazzaroni.com/uploads/1/3/1/6/131606027/496ee76619ed8.pdfIn PDF document text
    • http://files.julianlorr.com/uploads/1/3/0/7/130738956/746891.pdfIn PDF document text
    • http://kirar.spotlight-video.net/uploads/1/3/0/7/130739615/6052199.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/1/0433/8221/0725/files/fevimelezejozaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1756/0473/files/eos_750d_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3470/6069/files/tonapuripag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0740/9308/files/19150632818.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6322/9078/files/limusabogitedubefusikome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2831/5293/files/zipifoko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0923/6374/files/35998127831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0822/8508/files/cisco_ip_phone_7965_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5883/0229/files/farmall_cub_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/6681/4617/files/degradacion_quimica_del_suelo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9262/1978/files/29196288667.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3787/6639/files/17134927763.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6162/2437/files/zutukija.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_off0000ae95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE95 4660 bytes
SHA-256: 599c7f9094b2125b31dfcb36967547613ea5a4caf3d2932c80e32df3b0874091
font_01_sfnt_off0000be83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE83 10428 bytes
SHA-256: d2a8eb49df708206b4abbc4ebcc01b406e3503f4d0994cab2057720c50308246

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