Malicious PDF — malware analysis report

Static analysis result for SHA-256 80e81c896041d6f4…

MALICIOUS

PDF

40.7 KB Created: 2020-08-22 04:00:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 13bdb9f29d1313b4972879211aa3b5c1 SHA-1: 950d5f2e595e65d61f4cfc50e4cd113eff5ebf0b SHA-256: 80e81c896041d6f48f54cb77053c2dcd3ac9d17672148cc81a178267a8ac696a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains URLs that are also present in the heuristic findings. The primary malicious URL identified is https://ttraff.com/pify?keyword=assets+android+imageview, which is used in a link farm and SEO lure, suggesting a phishing or scam attempt.

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=assets+android+imageview In PDF document text
    • http://negagu.genpromotion.nl/uploads/1/3/0/7/130740117/600100221f.pdfIn PDF document text
    • http://wuxuk.marineoasis.com/uploads/1/3/2/7/132740978/1942963.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/1/0430/0826/2297/files/calcined_clays_for_sustainable_concrete.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7970/3451/files/62021804838.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/6900/2143/files/69826991862.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1455/3763/files/wetodezuborosadumutasuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2797/0718/files/7158120232.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7680/5018/files/40210836289.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4929/5776/files/rofavigexivava.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3019/2039/files/novela_amor_de_invierno.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_off00005426.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5426 5256 bytes
SHA-256: 865c7d127437c7072ede64b3d0e6e03dbbea43751eb631f16c3d6c489d361139
font_01_sfnt_off000065fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65FD 15336 bytes
SHA-256: 123beaad9d35dd5af838ee85fda755de96f385eac17f0c4e396d036fc710f684

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