Malicious PDF — malware analysis report

Static analysis result for SHA-256 63c854d333ded359…

MALICIOUS

PDF

40.4 KB Created: 2020-08-02 20:54:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4606eb29fd6b48a870efa216149ba3e4 SHA-1: afddc8a6d21a65d2b2ecef67f06ded885d3c5111 SHA-256: 63c854d333ded35947da34778bcd128a84de6657c20bc47e69fd135205ffd5f1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links, many of which point to a redirector URL (https://ttraff.com/pify?keyword=4e+d%2526+d+pdf). This suggests a link farm or phishing campaign designed to redirect users to malicious content. The ML classifier also strongly indicated maliciousness.

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.com/pify?keyword=4e+d%2526+d+pdf In PDF document text
    • http://files.mtousleyphysie.com/uploads/1/3/1/4/131437949/danexonomewatakusov.pdfIn PDF document text
    • http://files.friendsoftheanacorteslibrary.org/uploads/1/3/2/3/132303013/3009808.pdfIn PDF document text
    • http://files.simoncdrew.com/uploads/1/3/0/9/130969986/siliwekavegex_xarobug.pdfIn PDF document text
    • http://files.southcarolinamarijuanalaw.com/uploads/1/3/1/4/131453136/derulidesonexowos.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/1/0437/7752/3861/files/shopify_cheat_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3685/9813/files/69291192757.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89853177043.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7739/2791/files/773627477.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9718/5701/files/83522505387.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9827/4978/files/87945915232.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8415/1974/files/2013_chevy_sonic_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3692/5342/files/2599421324.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5327/7589/files/11195273533.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6581/9814/files/denovabadawi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0453/4692/files/49905314733.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 7

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_off0000569f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x569F 4296 bytes
SHA-256: 4064d723e00c6bf89a152d24e59aad39cdbe6e73125042934ec098ddd44de289
font_01_sfnt_off00006550.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6550 15048 bytes
SHA-256: cecb77bfc4481653d3e508a0248332b22d4875e15e379ae2b0711b587b365b3b

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