Malicious PDF — malware analysis report

Static analysis result for SHA-256 e515bbcec19962ad…

MALICIOUS

PDF

58.8 KB Created: 2020-08-17 17:06:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 02372b4ddc8a975625bb10d045be9708 SHA-1: 7bc4e7bd938d775acf415ca59237a442c692a295 SHA-256: e515bbcec19962ad4ed11cdbdecceacb43e23487f4ff1ff68c935e4592f5b881
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.cc/pify?keyword=cyanogenmod+android+rom'. Additionally, it exhibits a PDF link farm heuristic, with multiple links to PDFs hosted on cdn.shopify.com and other domains. The ML classifier also strongly flagged this PDF as malicious. The presence of these elements indicates a likely 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=cyanogenmod+android+rom In PDF document text
    • http://files.irondalelax.com/uploads/1/3/2/6/132695828/2145e1.pdfIn PDF document text
    • http://files.whitemtncommunitycoop.com/uploads/1/3/1/3/131381288/3192066.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7632/9373/files/98999401694.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1855/0439/files/aptitude_test_for_electrical_engineers_questions_and_answers_in.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2130/2946/files/arminianismo_a_mecanica_da_salvao_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0408/4899/files/44133052726.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1681/2706/files/tuffcuff_jr.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0664/7717/files/dabedetubeges.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3825/0910/files/bunny_kingdom_rulebook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2047/3752/files/bursary_application_forms_for_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9029/7503/files/wanebozodasawuxunojo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1036/5339/files/noropurepame.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008351.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8351 2960 bytes
SHA-256: 4253ce374f546ed82c0b962bfad5e193173c5af7311640f7068ccdda2cb38311
font_01_sfnt_off00008dd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DD2 4768 bytes
SHA-256: a03e2c508770d1fb8de14fa9de0f3cb7b585634dfd3907e78ce2f66984416042
font_02_sfnt_off00009de3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DE3 16144 bytes
SHA-256: 7cb011fe90c59c72111c710cc858baaff80c871b6a43c6a7729c57f3676b4f96
font_03_sfnt_off0000cf78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF78 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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