Malicious PDF — malware analysis report

Static analysis result for SHA-256 9acb252a990b8435…

MALICIOUS

PDF

46.6 KB Created: 2020-08-21 16:44:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: be52805885d97c980f4418d34aa9786c SHA-1: 6a32a0fd41332c6f32b8f7efa6fbd09eb0e187f1 SHA-256: 9acb252a990b843596f7a1a7f8ae50b027ba163feff6858d0f89338a986e1fd6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=viber+for+samsung+android'. This indicates the document is designed to redirect users to malicious infrastructure. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to improve search engine visibility for malicious content. 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.com/pify?keyword=viber+for+samsung+android In PDF document text
    • http://files.indianagolfsolutions.com/uploads/1/3/0/8/130874067/lomipesun.pdfIn PDF document text
    • http://files.empowerlovenow.com/uploads/1/3/1/4/131438474/bututorapojaforen.pdfIn PDF document text
    • http://files.attorneydianebaker.com/uploads/1/3/0/9/130970014/3599882.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/1/0431/8042/5370/files/wutupabubazilavuzoluvo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9155/6504/files/85422786153.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9461/3924/files/39975830167.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9276/3039/files/runescape_max_hit_calc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9982/1982/files/iterate_through_list_java.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2804/6233/files/bonanza_g36_poh.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8421/8521/files/jigotagisutibujulidivi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2491/6388/files/23860387119.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1415/2607/files/43381715455.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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_off00006719.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6719 6424 bytes
SHA-256: 50759c40df67ec181331d37bc16259f4db20c39507a2c7d18444f96545433770
font_01_sfnt_off000076f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76F9 5300 bytes
SHA-256: 50f06a080f843117afa684133c0bdc09614ac27afb7ed241d8479b37d9a794a0
font_02_sfnt_off000088e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88E8 10856 bytes
SHA-256: d454bfe92afe79f6093ef762fe0824f8b7c4df7ba9fb922457aca4a8734db97c

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