Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c73bc62106dc8e9…

MALICIOUS

PDF

44.5 KB Created: 2020-08-11 15:02:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ba08729c113d5ffb36995982a371a700 SHA-1: 631d69767bafc0f4d4d25828a974c69fb98c1d19 SHA-256: 0c73bc62106dc8e9a4a0ec2ced295e56215d161f427550034e48ed5cdbe2aedd
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service, indicating a link farm or phishing lure. The primary redirector URL is associated with malicious activity. The document body, though heavily obfuscated, contains the URL https://ttraff.cc/pify?keyword=12v+subwoofer+amplifier+circuit+diagram+pdf, suggesting a social engineering attempt to trick users into downloading 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=12v+subwoofer+amplifier+circuit+diagram+pdf In PDF document text
    • http://somafa.agefriendlybethel.org/uploads/1/3/2/7/132712615/3605778.pdfIn PDF document text
    • http://rowalat.pinkdazeeboutique.com/uploads/1/3/1/0/131071164/kadotisimekanav.pdfIn PDF document text
    • http://vupimiw.chargerchoir.com/uploads/1/3/2/8/132814930/fe9958c.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/1/0431/5847/0810/files/92648979061.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2153/9240/files/xofilizovoren.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3966/1986/files/dadesojujufolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6455/5675/files/wigama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8984/5671/files/wow_7._1._5_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6942/3269/files/25481156265.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1557/7504/files/online_converter_to_powerpoint.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0416/6297/files/94822684133.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8812/1760/files/95447382087.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6769/4501/files/83751297579.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0428/9439/files/jesekojabopupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8900/2645/files/jokubuvamilet.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 1

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_off000061a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61A7 5632 bytes
SHA-256: 94a3bbb0e8fe03b17c59a972ef87b4a742270352d430354bed9ab3a3dd41c271
font_01_sfnt_off000074e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74E1 9828 bytes
SHA-256: fc160577f2273d70162a7bb98b5d20c507e4565f4688f2a308203e7d71fb241f
font_02_sfnt_off00009689.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9689 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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