Malicious PDF — malware analysis report

Static analysis result for SHA-256 06340d97aba5704e…

MALICIOUS

PDF

48.9 KB Created: 2020-08-14 01:10:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9f017eba8f3416ad9efdd33e9330ca0f SHA-1: b1c6ffd2376ab44a3cd67872d1fe7c805237551b SHA-256: 06340d97aba5704e97b020e0fa27d31234119275bc13fdf9960aaf5e3026db80
194 Risk Score

Malware Insights

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

The PDF contains a lure for 'Course Hero reading plus answers level g' which redirects to a malicious URL. This indicates a phishing attempt to drive traffic to malicious infrastructure. The ML classifier also strongly flagged this PDF as malicious.

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=course+hero+reading+plus+answers+level+g In PDF document text
    • http://files.science1helpsite.com/uploads/1/3/2/3/132303270/2236031.pdfIn PDF document text
    • http://files.scottkosel.com/uploads/1/3/1/1/131164425/koguzew_zetetafiri.pdfIn PDF document text
    • http://files.papermagicbook.com/uploads/1/3/1/8/131860787/nelakojopotazedi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/83971047952.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2931/5239/files/44449140288.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1854/1480/files/70174899680.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6542/5563/files/75031574797.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3269/9295/files/hanuman_chalisa_lyrics_in_kannada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6246/8503/files/acres_of_diamonds_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4607/6565/files/4599085710.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0007/0307/files/bournemouth_and_poole_college_sixth_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nuruge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7921/2959/files/dudilapixalejavil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3599/8880/files/30861011011.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8212/1377/files/72785657978.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7664/0156/files/anime_girl_looking_back.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6377/1293/files/32942732631.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_off00006760.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6760 5276 bytes
SHA-256: 0f57e8cfb2a7c6a9bb754a078704ef1c7c1ef6f23d85ab761aab13388d281f15
font_01_sfnt_off00007965.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7965 15136 bytes
SHA-256: a559f4030338d4e7a21635ec421d35ff6c3c48a8dc951b32188a26bbfb6906d7
font_02_sfnt_off0000a943.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA943 3300 bytes
SHA-256: adef7acd572d1f4a5440fe6f829d9af1e58dbb2a221572fd271d9bcc0ab11c20

Open this report in the interactive analyzer, or submit your own file for analysis.