Malicious PDF — malware analysis report

Static analysis result for SHA-256 63c3cecd66eb350e…

MALICIOUS

PDF

40.1 KB Created: 2020-09-10 04:41:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ceea71e32c2ce097a2afdde5408d66d4 SHA-1: 87a5e7d748a38f49292da575c421b11298eb7385 SHA-256: 63c3cecd66eb350eaf980bc79422bb4a9049827a81a00110d64bf108554bad69
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external PDF files, disguised as free design templates, which is a common lure for phishing or malware distribution. The primary redirector URL, 'https://ttraff.me/pify?keyword=modern+certificate+design+templates+free', is flagged as malicious. The document body, though heavily obfuscated, contains similar URLs, reinforcing the phishing pretext. 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.me/pify?keyword=modern+certificate+design+templates+free In PDF document text
    • http://files.southdublindanceacademy.com/uploads/1/3/1/6/131606719/lukowuloxu.pdfIn PDF document text
    • http://vukibug.erinlands.com/uploads/1/3/0/7/130738764/nafenome_palobinimoka_mobopujefob.pdfIn PDF document text
    • http://files.evansmstheatre.com/uploads/1/3/1/6/131637257/sexore.pdfIn PDF document text
    • http://files.qristara.com/uploads/1/3/0/9/130969791/lawasukevug.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_0d7b570e39364345b586ef21a392c2a4.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/9d66c7_aea2f72ae8c245d9839c7107cbd780ee.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/93c935_ba3a32c0e9c74f23b0b315f6ea55bcc9.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6127/8885/files/doxusebozuvovavaxesibu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9179/6902/files/91922541351.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b371d9_35c39fbcee3c4e0f8497d16a88fafc0f.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b1b3ad_74218dbb2b804ffdad3521a7aebbed01.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 8

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_off00005ea9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EA9 5480 bytes
SHA-256: a5eeaccf7dd12e440cedbe1eafb1d4a9fbff254495b6be800f81ea340f44bd68
font_01_sfnt_off00007147.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7147 10128 bytes
SHA-256: f5d984dd6c46c111b4f85668f62d7dc1a0f88f3cc1c6d8bd8c5260273e712d4a

Open this report in the interactive analyzer, or submit your own file for analysis.