Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c8eded92240d916…

MALICIOUS

PDF

40.8 KB Created: 2020-08-13 22:04:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 78f2e7b4a5aa5acf1b384d648730f0e7 SHA-1: 5e074cbdd199ca6b64108276bbb42ac3f6d3b652 SHA-256: 0c8eded92240d916a7b67268bc04307e3653fef5e273fb561abdb03199cae146
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many of which point to a redirector service. The primary redirector URL, 'https://ttraff.cc/pify?keyword=sound+volume+apps+android', is flagged as malicious. This suggests the document is part of a link farm or phishing campaign designed to redirect users to potentially harmful content, likely disguised as free downloads.

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=sound+volume+apps+android In PDF document text
    • http://files.autopoiesis.life/uploads/1/3/1/4/131453684/8070935.pdfIn PDF document text
    • http://nolujar.shinestudiohairsalon.com/uploads/1/3/0/8/130813332/gufifidopuliwuja.pdfIn PDF document text
    • http://files.uttxts.org/uploads/1/3/0/7/130775126/nifefifogurar-nubov-wuvonor-rezogezalofuko.pdfIn PDF document text
    • http://files.digbytrails.ca/uploads/1/3/0/7/130738882/vujokaja_zafamen_wesejiwo_digedex.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/1/0431/2583/3884/files/tudulirodizabebakapale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8184/2341/files/75590870144.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4535/5674/files/bosquejos_de_sermones_cortos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5542/3396/files/jilonalesadosufuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6428/5601/files/jakejulesumopiwapuravelu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3350/9534/files/60457854104.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1725/6603/files/64990194922.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5672/6165/files/jinaxijunokubum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7865/5903/files/mathematics_symbols_in_telugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0703/2990/files/42030152848.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3290/2806/files/gulekugakozijiposaxiran.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9324/5590/files/20939483847.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_off000061bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61BF 5268 bytes
SHA-256: 10d3a2bc3e93ad71905b9a5228b3bb6179ec7725f74a142ec7e5590cf9c0fa84
font_01_sfnt_off0000738d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x738D 10272 bytes
SHA-256: 5e013f12d2bd8213e4545a8e9c225f0d71fb750c6118284ca6cc4424d9b85e70

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