Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e3dd4d9f6512ca5…

MALICIOUS

PDF

68.5 KB Created: 2020-08-18 12:58:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ac280964a8cca519b4f22c4c91c75527 SHA-1: e589a64ebd94f43c03c93adb596aab7b0d09898e SHA-256: 5e3dd4d9f6512ca5f0139bd94a1efa31613b47df6cd9ce7df899fce29850e563
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating it's a malicious redirector, specifically designed to lure users to external sites. The embedded URL 'https://ttraff.cc/pify?keyword=pronoun+antecedent+agreement+worksheets+pdf' is flagged as a known malicious redirector, suggesting the document's primary purpose is to facilitate phishing or malware distribution by directing users to 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=pronoun+antecedent+agreement+worksheets+pdf In PDF document text
    • http://files.gilheanyresearchgroup.com/uploads/1/3/0/7/130738764/vafof-nolekepak-loputojef.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/1/0438/3349/1613/files/pdf_file_size_reduce_below_2_mb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7272/4897/files/diwugema.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7080/7459/files/4366656925.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2519/3368/files/resignation_letter_sample_philippines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6545/9366/files/android_10_features_pixel_3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8323/4470/files/timubugapabojiwafasom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5722/5638/files/tool_72826_songs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4098/7543/files/66296130699.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9108/0869/files/bus_games_2018_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6873/6166/files/fukowazume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2993/8855/files/vokubiruvugidoseginekosov.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
🗂 Part of campaign: charlottecrone.com 3 samples

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_off0000bdf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBDF3 2828 bytes
SHA-256: b7f317aa0f29cd34df008dc84d8f376d2685882a57a4a5cd0d86477d0adf885a
font_01_sfnt_off0000c7ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7EE 5696 bytes
SHA-256: 6cf7df0a63162f25665079fcd7fc3d327204b076314714aa575d3b900794ac3a
font_02_sfnt_off0000db38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB38 13088 bytes
SHA-256: 612f8d92bdc7395f8d486f5d31a07452d50192135c31a72d5e904c9c7ea9700a

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