Malicious PDF — malware analysis report

Static analysis result for SHA-256 fda79d6466d2f63b…

MALICIOUS

PDF

40.0 KB Created: 2020-08-25 03:58:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 49bf5722ec23464573dedea4aa36940d SHA-1: c3c066134c59dfac3a5274ec6d6f1118d3347fee SHA-256: fda79d6466d2f63bea69eabadc6d31837cfe247b93d2483e3e224decd6f7f541
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a redirector service. The primary malicious link, 'https://ttraff.cc/pify?keyword=computer+architecture+mcqs+with+answers+pdf', is designed to lure users into clicking by appearing as educational material. The PDF structure and link farm indicate a social engineering tactic to drive traffic to malicious sites.

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=computer+architecture+mcqs+with+answers+pdf In PDF document text
    • http://files.classicalmusicphotography.com/uploads/1/3/1/4/131483009/4206221.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/1/0433/3505/7559/files/concept_review_carbohydrates_and_lipids_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xekosipavejidowusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5122/1146/files/8388845807.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6726/0576/files/convert_mp4_to_mkv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6402/5493/files/25134444309.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2072/2080/files/capteur_de_temprature_automobile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1555/8552/files/cantaloupe_island_piano_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9293/2763/files/nj_driver_s_permit_test_study_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6923/5619/files/12614331446.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6535/2093/files/www_amazon_getandroidvideo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2937/2832/files/kpmg_vietnam_tax_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0052/9049/files/30957058808.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9058/3464/files/sedoxuv.pdfIn PDF document text
    • http://www.cs-mcqs.blogspot.comIn 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E60 5488 bytes
SHA-256: 0ed3475d6e4b3aea49d6d2704cd144cbd347483b10c4c8ec1c8e3dab9d166e18
font_01_sfnt_off000070ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70EE 10132 bytes
SHA-256: 4dbf3d89a3c9bc6fc390dd6a41d41a0d267d1d7370d408ae86d317d20c93766d

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