Malicious PDF — malware analysis report

Static analysis result for SHA-256 93f4d7a69a0854e5…

MALICIOUS

PDF

48.8 KB Created: 2020-08-23 01:39:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9879d81aa4d52c22ac4036cb53c109fa SHA-1: f678d44848303771a3f541473480ac81c653a594 SHA-256: 93f4d7a69a0854e52caef145e438bfc5d85f973ad9fed47321b89ceb9289713d
234 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com', which is used in a social engineering lure. The document body explicitly contains the URL 'https://ttraff.com/pify?keyword=acrobat+reader+alternative+android' and suggests the user install an alternative to Acrobat Reader, a common tactic for malware delivery or credential harvesting. Additionally, a large number of external PDF links were found, with the first pointing to a Shopify domain.

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.
  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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=acrobat+reader+alternative+android In PDF document text
    • http://fafidob.rosebayrotary.com/uploads/1/3/1/6/131606756/jepuzarit.pdfIn PDF document text
    • http://rekapawob.alanmitchellplasterers.com/uploads/1/3/1/6/131606490/rapilaxeloduzawaleme.pdfIn PDF document text
    • http://zisuzi.sussexflowinitiative.org/uploads/1/3/0/7/130776428/gojigafumuloref.pdfIn PDF document text
    • http://malasoxu.arf-private-investigators.com/uploads/1/3/1/8/131858419/gojalozux_vuwizu_biwaxezaziwo_vurorisotuz.pdfIn PDF document text
    • http://files.throatslashtattoo.com/uploads/1/3/0/7/130739227/dosilinodigil.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/1/0433/9928/2845/files/togoxarego.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/0425/9492/files/information_technology_entrepreneurship_and_innovation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/depusulolunifanilux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8259/6004/files/89545458088.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2567/7982/files/tegabixofibos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8843/7655/files/sekutipatubavegononoze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9575/2864/files/girulogukojelojejukinozu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9469/5329/files/systems_of_linear_inequalities_practice_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3667/2162/files/rebogelakulevejitokiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1049/7434/files/22180917661.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3127/3383/files/hex_color_codes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5163/7141/files/dotumem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0653/3525/files/gotitasufobix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5816/5925/files/vitaturep.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_off000080b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80B6 4944 bytes
SHA-256: 573ce5a80f9f8ba4ad2f45f648214ba2eab1ec198974187f2fed84f9524b75b2
font_01_sfnt_off0000918f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x918F 10652 bytes
SHA-256: 09aa16c7a3593347d01ff5059ab4a09cde5a2aea1ab9cf04a91654e5b5be952a