Malicious PDF — malware analysis report

Static analysis result for SHA-256 720c12cfe26fdc01…

MALICIOUS

PDF

48.6 KB Created: 2020-09-11 06:07:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a02935e901826bb6c146943b485facf4 SHA-1: fd22fd8c3707bb7762cf304387569604607f202b SHA-256: 720c12cfe26fdc01815697c1e48a2d486d41b889a767d3337a0b0575f3084a33
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though partially corrupted, contains text suggesting a lure related to 'cancella chat whatsapp android' and includes the primary malicious URL. The presence of numerous PDF links, many pointing to SEO-optimized URLs, indicates a link farm designed to distribute malicious content or phish users.

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/wix?keyword=cancella+chat+whatsapp+android In PDF document text
    • http://files.gillysplaceinkefalonia.co.uk/uploads/1/3/0/9/130969710/6463263.pdfIn PDF document text
    • http://files.thenectarylkld.com/uploads/1/3/1/4/131437276/zobulidab_popukenukuwug_gugalipitoja_zutepaxuzobel.pdfIn PDF document text
    • http://zorepu.fillinupmyteacup.com/uploads/1/3/1/4/131406717/4aefe2b652b87bb.pdfIn PDF document text
    • http://files.lhec.org/uploads/1/3/2/6/132682235/0a40c5a84c7e85.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/16a96a_6d561308b97842f78cb9de973b158dcd.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/35e1ce_e029390ed4df45b2982c50aa1c27dc9e.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8198/2361/files/65862606474.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7079/1573/files/46900006921.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1870/6331/files/poor_richard_s_almanack_1733.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6451/7023/files/vufofixi.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/c63dba_b52e5c67f4634db194cc754ca42bbd91.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b28ae2_c355cd87498e41baa7e723ec7a155828.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/ecec20_dda744f52d4440ecb82cc862b4834078.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_5a72c0dbd08049159532716359c511d1.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_off00008216.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8216 5160 bytes
SHA-256: 2b57ae71f23a1808dbd18e870c539709b043baffdefec77e8d68f2a9d23ab4b8
font_01_sfnt_off000093a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93A7 9908 bytes
SHA-256: c1293b41db9e420594cdadb141d48315bd6485bc70fca65b0053e0a9d5512450

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