Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ed7ac50a8a098dc…

MALICIOUS

PDF

48.9 KB Created: 2020-08-10 02:56:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 683f0408f30da997c3202b06c57a7abd SHA-1: 5c36d3a76fb64d7499ac962d38b2a30a4af67766 SHA-256: 3ed7ac50a8a098dc1844639ef4928e8792ffe34e8535073cf1b741ac4e782256
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=aditya+hridaya+stotra+book+pdf+telugu'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, with the first identified as 'https://cdn.shopify.com/s/files/1/0438/6563/7019/files/hosting_website_on_github.pdf'. The document body, though heavily obfuscated, contains fragments that suggest a lure related to a 'book pdf telugu'. The primary intent appears to be directing users to malicious infrastructure.

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.ru/pify?keyword=aditya+hridaya+stotra+book+pdf+telugu In PDF document text
    • http://files.meathcookeryschool.com/uploads/1/3/0/8/130814931/8358fbf.pdfIn PDF document text
    • http://files.declutteredlifetx.com/uploads/1/3/1/4/131437949/15f951d18990.pdfIn PDF document text
    • http://files.duckmoors.com/uploads/1/3/0/7/130776511/c97e1.pdfIn PDF document text
    • http://rexeji.purduebap.org/uploads/1/3/2/8/132816066/93da0485.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/1/0438/6563/7019/files/hosting_website_on_github.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7265/1413/files/electron_configuration_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4161/9100/files/39736448483.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4536/3610/files/59010883029.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jaled.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6584/3620/files/2517514764.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4677/3660/files/gijalogemukefatal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0659/8040/files/srimad_bhagavatam_in_tamil_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tazoxusejeko.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 2

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_off00007ec8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EC8 5600 bytes
SHA-256: ba6abfc745dc09350c7136dfa036c99e6b2cb5f2963262db8997943d00541014
font_01_sfnt_off000091d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91D9 10764 bytes
SHA-256: 51a659f39be4c87cb6e511a5f67fec8eeb4a2ae8ed67d2224a633482effdab24

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