Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f0e342c2d046fa2…

MALICIOUS

PDF

41.1 KB Created: 2020-08-07 01:20:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 38aca759ff908594779f3cc77a83cfbe SHA-1: e4c8d5d7ed9058fdd36a60acdf63df37af71c45e SHA-256: 7f0e342c2d046fa2cb7016d028a909cc016ed31c0ca02f6d4ddc59f5b4de46f5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a large number of embedded links, many of which point to a redirector service (ttraff.com) that is known to host malicious content. The document body and heuristics indicate a link farm strategy, likely intended to lure users into clicking through to malicious sites under the guise of free downloads. No scripts were extracted, but the primary attack vector appears to be social engineering via link manipulation.

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=the+easy+guide+to+jazz+guitar+arpeggios+pdf In PDF document text
    • http://files.lyricsandpoems-cacreed.com/uploads/1/3/0/8/130814351/e60d8a4e.pdfIn PDF document text
    • http://files.donnavarnsosteopathy.co.uk/uploads/1/3/1/4/131407901/1391923.pdfIn PDF document text
    • http://files.hansenmath.org/uploads/1/3/0/7/130739404/wafotepe-mabinamisuj-jaxosaleguboku-mesojupapoton.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/1/0428/5346/6271/files/lomubeze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4512/5281/files/iron_maiden_wasted_years_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0239/5813/files/the_sniper_short_story.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/suramagufumaxuragozud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3912/9751/files/common_accounting_terms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7258/4861/files/52540715303.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9587/6003/files/tugevatobexolilusozasape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7730/2427/files/29533417391.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mipin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1022/0447/files/tefoxobupowotodokerebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ruketisoren.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6839/9524/files/centrifugal_fan_theory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9664/6556/files/java_se_platform_binary_not_responding.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63C2 5448 bytes
SHA-256: 730e88b5906b2f65d25859c661097bfce10f3f4ada35db1f3fdbeb6646752a5c
font_01_sfnt_off0000765a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x765A 9704 bytes
SHA-256: 5afe18771d6c28e646b3153569546db7c0852d6c25a40b3146cee4cdaacd0fb2