Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5e74635f71af729…

MALICIOUS

PDF

51.3 KB Created: 2020-07-30 07:08:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3aca1dd32fd878b2ab60f48976394f5b SHA-1: 6393480f3f2350e4f2065f0eba754e438c58ea11 SHA-256: f5e74635f71af7298c05b8aa77652bcfbdbf28b5836d6a2f21ab6aab6bad0b8a
202 Risk Score

Malware Insights

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

The PDF file contains multiple heuristics indicating malicious intent, including a critical finding of a PDF redirector link pointing to ttraff.cc. Additionally, it features a PDF link farm, suggesting an attempt to manipulate search engine results or distribute content through numerous links. The presence of a 'download button' lure further supports the malicious nature of the document, aiming to trick users into clicking the malicious URL.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.cc/pify?keyword=free+convert+scanned+pdf+to+word+online In PDF document text
    • http://files.jasehlee.com/uploads/1/3/1/4/131437376/kelamuj_vurikaxejo_mamewin.pdfIn PDF document text
    • http://files.southbaywatercolor.com/uploads/1/3/0/8/130813732/7693229.pdfIn PDF document text
    • http://files.hispanokcsj.org/uploads/1/3/1/8/131856277/goribajuneveremot.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/1/0440/7014/2117/files/138702414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0564/8801/files/wapidoxuwixaromatep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8032/7076/files/42041591734.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4568/2332/files/rilopimer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2410/5124/files/rilapapoku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3320/6690/files/77958311421.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3173/2125/files/fejegujexira.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1306/1277/files/daromiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fofigez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7341/3028/files/66457379012.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7387/2807/files/47576231687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2969/2577/files/moseba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6797/4556/files/lobavapevubunu.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 2

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_off00008afa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AFA 5044 bytes
SHA-256: 1ced87285884b0467543686d9ed8ab2907399e3338e3fde89596b19d230ed30a
font_01_sfnt_off00009c3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C3E 10248 bytes
SHA-256: 6ced5485b65087484eecd151c4d315b343ba49e0f510601c359086b45914c83b

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