Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3a446b746fd2845…

MALICIOUS

PDF

44.6 KB Created: 2020-08-23 07:17:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eece8a3f93b364ecac92faf9ae35a604 SHA-1: 826f5468e3440bbf2a63b7ae1e32a0353af2b51d SHA-256: f3a446b746fd284540eeb5044397f2bb54383203747100eb2d39e11fc5e7e6c9
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical redirector link pointing to malicious infrastructure. The document body, though heavily obfuscated, contains the URL "https://ttraff.cc/pify?keyword=adobe+pdf+reader+version+9+free", suggesting a lure for users to download a fake PDF reader. This indicates a phishing or social engineering attack aimed at redirecting users to a malicious site.

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.cc/pify?keyword=adobe+pdf+reader+version+9+free In PDF document text
    • http://files.blueridgestitches.com/uploads/1/3/0/7/130738614/2623298.pdfIn PDF document text
    • http://files.jeanrascher.com/uploads/1/3/1/0/131070918/6025311.pdfIn PDF document text
    • http://files.bestrhonewines.com/uploads/1/3/1/4/131437689/c593c4f0a99.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/1/0434/2182/7239/files/oneplus_7_android_10_oneplus_forum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4447/0945/files/ielts_band_9_reading.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6341/9814/files/87007986989.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7494/4153/files/konovowekiputibefokepi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gefoviliruvowej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1268/5977/files/57794792013.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7016/8992/files/asus_zenfone_2_ze551ml_unlock_bootloader_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1053/1238/files/sevawesezuvubuzojajewafev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8300/5078/files/purekaxofogegojener.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5937/9357/files/rororunilolivokagarili.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 4

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_off00007100.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7100 5348 bytes
SHA-256: 8f69c63c0170ec80875d9d2eb9f6ae7c1cc1c2b8474cb1248c73451ff8b9bb6e
font_01_sfnt_off00008337.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8337 10256 bytes
SHA-256: 4f45e6bb9ca3b13c9773ec5d8ab5c30e26e84218cc3178fda9c3fe4bc1f8291e

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