Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d74d5a8c140274f…

MALICIOUS

PDF

63.6 KB Created: 2020-08-31 12:42:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6177f7f0b1c7948a6b661dad54ffe225 SHA-1: e6a07f990d50f3e1569d1d95c2ce2080afca6099 SHA-256: 1d74d5a8c140274f25832d532a6535a7f8920df1096c7542efdffc1a320182a4
202 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical heuristic firing indicates it links to known malicious redirector infrastructure. The document body, though heavily corrupted, contains text suggesting a lure related to a 'trophy guide' and includes the malicious URL. The primary attack pattern involves tricking the user into visiting a malicious URL disguised as relevant content.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/wix?keyword=detroit+platinum+trophy+guide In 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/1/0434/9706/2564/files/55497216560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0877/8663/files/southwest_airlines_print_boarding_passes_and_security_documents.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8153/9489/files/amelie_poulain_comptine_d_un_autre_t_piano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5265/5004/files/jtrent238_planet_minecraft.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1908/2651/files/73210417255.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9037/0975/files/nadarapelavowoma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1403/6376/files/nepaziwovilekaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9007/6067/files/bisizajovasakoxuxikoje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1795/9586/files/wewemalomipazaniji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3004/3041/files/tuwamumapopepirurupetoruw.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_51e65490c53b4a0c88aa030be9b7a340.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_3d59396c198f4cf39d4cf8d6817daf74.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/191a6d_7b8a7d4284294e4bb350ba4c03281fc6.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/6290de_0d91bf5652924574ab75743c6bfff01f.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a6c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6C4 5296 bytes
SHA-256: 381a864768c394fc59386b35f5f9a300c0ae34b3e30c9de575d076300604233f
font_01_sfnt_off0000b8aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB8AA 10468 bytes
SHA-256: caa65987afe23902d005868e2816df93244150aa4be3e8c2e5827b54e22cb434
font_02_sfnt_off0000dca9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCA9 16068 bytes
SHA-256: 3b1167557c0500c78008053c404847a906c4d495ef15adec583fc97e76626070