Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f145bfcc4925078…

MALICIOUS

PDF

46.2 KB Created: 2020-08-20 01:42:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 41c6e16b50cb06363450b891bf49c66b SHA-1: b8e6be257566b6a28b127b88425a1543b34d3ef9 SHA-256: 5f145bfcc4925078fa38bd2eda3d16772ee968323da4c805523e5defa5c95eab
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains numerous links to external websites, many of which are part of a link farm designed to redirect users to potentially malicious content. The primary redirector identified is 'https://ttraff.ru/pify?keyword=bhakti+picture+hd', which is flagged as malicious infrastructure. The document body's content and the presence of these links suggest a phishing or malware distribution attempt, likely masquerading as a benign download.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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=bhakti+picture+hd In PDF document text
    • http://wimixofi.marthaannepalmer.com/uploads/1/3/0/8/130874493/zavobodewawezad.pdfIn PDF document text
    • http://files.nanosystems1.com/uploads/1/3/1/4/131408103/712e1beb833f.pdfIn PDF document text
    • http://niwatom.spiritualandparanormalconnections.com/uploads/1/3/2/7/132740541/6695746.pdfIn PDF document text
    • http://files.acadianacarpetbinding.com/uploads/1/3/1/4/131483662/810062.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/1/0429/4384/0412/files/62881862282.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2887/3367/files/android_gba_emulator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3911/9765/files/google_sheets_query_order_by_date.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xomekanob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9800/4899/files/kududezew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0936/7461/files/48910286252.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7135/4533/files/bijeridi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0333/7114/files/sifatuxoluletasuridizu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6599/9511/files/biological_science_freeman_4th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5664/3739/files/pulupifoxitabudob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3972/7509/files/meveme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0537/0791/files/10208513384.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6607/8870/files/muwizedirukovut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8575/8628/files/kicking_horse_snow_report.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62FB 2952 bytes
SHA-256: d8b907802410e675ceca2784509e58a9dae2947c1b2ad43e3e0c02687eabed47
font_01_sfnt_off00006d89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D89 5064 bytes
SHA-256: 26d33f7b2cc3733ed5d7ce7fec989cc6658a91004e3267d4cca23989b87c8222
font_02_sfnt_off00007eb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EB6 14484 bytes
SHA-256: 3dcc30fb301a15e1ed2ffa27dfb6907748b269ee809d69b2660973d579e51f83