Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0264729e97d5c58…

MALICIOUS

PDF

39.9 KB Created: 2020-08-26 00:17:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e2a8aa0eccc3f067ef255a2eeaab1603 SHA-1: 08905a203f60683eb67df99db2d99e79106deb95 SHA-256: a0264729e97d5c58c516ba4bb8b722e1cea4a2e73f66b69b479d136e84739b4c
194 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics indicating malicious redirector links and a link farm. The ML classifier also strongly indicated maliciousness. The primary malicious URL, https://ttraff.cc/pify?keyword=schema+ampli+audio+a+transistor, is part of a redirector infrastructure. The document body contains numerous embedded URLs, many pointing to shopify.com, but the presence of the malicious redirector link suggests a phishing or malware distribution 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.cc/pify?keyword=schema+ampli+audio+a+transistor In PDF document text
    • http://files.msgreenoughsvirtualguidanceoffice.ca/uploads/1/3/1/8/131857421/9358062.pdfIn PDF document text
    • http://rimifip.montrealmusiciansexchange.com/uploads/1/3/1/4/131483603/toluximo.pdfIn PDF document text
    • http://files.zenlockyt.com/uploads/1/3/2/6/132682233/madadali.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/1/0428/2174/6847/files/xajomopuxebojixanuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6975/8874/files/les_chevaliers_du_ciel_soundtrack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0596/7527/files/10_characteristics_of_an_entrepreneur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9249/8850/files/bi_triangle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0616/3104/files/count_duplicates_in_array_javascript.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9676/0730/files/wowekexevunaku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4484/8295/files/14805412522.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7785/1550/files/2004_yamaha_road_star_1700_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5789/7882/files/online_video_er_apple.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/0097/9606/files/amma_amma_telugu_naa_songs.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 6

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_off00005e67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E67 5416 bytes
SHA-256: 7c71ec292d3d944070c1ddbdfd15dc0c93c826e49eeba262828afd21f21f8d94
font_01_sfnt_off000070a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70A0 10080 bytes
SHA-256: cfd25d254ee4a40b810f543b909dbc1a5db3a18e551a7952b719f77251179d46

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