Malicious PDF — malware analysis report

Static analysis result for SHA-256 48655f9625494016…

MALICIOUS

PDF

44.7 KB Created: 2020-08-18 16:50:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4452bad7202a5d86734184f528ea00aa SHA-1: e82ba5cfef883bee8a3a280f89ea4054c00ee328 SHA-256: 48655f9625494016f9bc273c1d743fd9bed2b9262ae175a540c4f3864b3f62d8
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, with one specifically identified as a malicious redirector. This suggests the document's primary purpose is to direct users to potentially harmful websites. The presence of a malicious redirector at `https://ttraff.ru/pify?keyword=kinemaster+chroma+key+file` is a high-priority indicator. No scripts were extracted from this sample, limiting further analysis of its behavior.

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=kinemaster+chroma+key+file In PDF document text
    • http://files.fitnesssavage.com/uploads/1/3/0/7/130739379/tudibokuden-vazatopikuzikaj-muwel.pdfIn PDF document text
    • http://files.valutazioni-gioielli.com/uploads/1/3/1/6/131636988/derazop_zotaroganekokap.pdfIn PDF document text
    • http://files.xoxomadds.com/uploads/1/3/0/7/130775434/8974321.pdfIn PDF document text
    • http://munijoj.justicecollaborativeatcornell.com/uploads/1/3/2/3/132303382/nomes.pdfIn PDF document text
    • http://nokerowal.natalieasport.com/uploads/1/3/2/3/132302815/runejubukilat-kumibif-towepasu-fuwunuwegi.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/1/0437/4052/8792/files/fixifajajutaresabebune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2023/0564/files/76883752597.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6063/3504/files/wifoximanesefebufite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9341/7383/files/cultivos_agroecologicos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8803/5486/files/ridobaled.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0118/4417/files/computer_system_architecture_morris_mano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4504/3880/files/34706264625.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8307/1650/files/lodakosogexipijewob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6625/2703/files/conjunction_definition_grammar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6992/1690/files/amazing_grace_jazz_piano_sheet_music_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7971/9330/files/udi_u818a_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/phylum_arthropoda_caracteristicas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7685/3664/files/gulorejavodutamedaloronef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gekubamunanapomokavonata.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000716e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x716E 5256 bytes
SHA-256: 796cd0c78bcf1b548bbdc83381e42baa92eda706010aedbe5ffb7292a2d90cbb
font_01_sfnt_off0000831d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x831D 10268 bytes
SHA-256: a074016a4c7938a116ff5a45b3ca39797a3b3ec588b96ce0981ba774b612bd50