Malicious PDF — malware analysis report

Static analysis result for SHA-256 d795b8e0345982bc…

MALICIOUS

PDF

51.7 KB Created: 2020-08-05 07:50:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d12d7af4891f23f5949f04cfc8a97dc3 SHA-1: c06237596d9d5d3526f12749af536795abf1b8eb SHA-256: d795b8e0345982bcb8c7ac4c9880b8bd7cad1cae1f35b4727760a7e6b4fa5045
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links designed to appear as legitimate PDF downloads, but they redirect to a malicious domain. The primary redirector URL is `https://ttraff.ru/pify?keyword=antimicrobial+activity+of+allium+sativum+pdf`, which is flagged as malicious. This indicates a phishing or scam attempt using a link farm to distribute malicious 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.ru/pify?keyword=antimicrobial+activity+of+allium+sativum+pdf In PDF document text
    • http://loseru.lawallab.org/uploads/1/3/2/8/132816066/bazapa.pdfIn PDF document text
    • http://files.ameliahamiltonfit.com/uploads/1/3/2/7/132740665/jodalapesovesu-fapode-pubagezokatade.pdfIn PDF document text
    • http://files.primariuscorpservices.com/uploads/1/3/1/3/131397964/bezefifa.pdfIn PDF document text
    • http://gojarat.sethled.com/uploads/1/3/1/6/131606069/b746e.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/1/0430/0144/6554/files/83619844792.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wijabogose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5477/5970/files/79373061673.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2807/7992/files/85555434467.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9159/1317/files/bexadavuluwamixotapefug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9660/4825/files/mavevuwog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7861/5189/files/lejoluxedegutasuma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8358/5953/files/julubekukatitonom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7374/7609/files/vepisisagulefaxos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/21096031872.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3549/9418/files/bivozadinefepik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1624/7703/files/tovufibinisepuwasebu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7387/2807/files/boris_the_bullet_dodger.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3139/6501/files/55709497821.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008b54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B54 5592 bytes
SHA-256: a5ff0ecd0a0ad6818a782e57118225f5adc01ea588158fad3923cc5dee6ba4a6
font_01_sfnt_off00009e4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E4E 10216 bytes
SHA-256: 0823536f86211261b2713d725c9d307b51db8ec6c8efafe68856bab3573c419b

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