Malicious PDF — malware analysis report

Static analysis result for SHA-256 0cdf1998f9b1b4e0…

MALICIOUS

PDF

55.0 KB Created: 2020-08-25 17:04:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9271fb98f75c54adcb44b4edfe0e0ace SHA-1: 0aa91b2210d6f49c762dbdc433a5748f32c68adc SHA-256: 0cdf1998f9b1b4e01503f432e7bffb81d000d3338a4a57915204c832c36abf08
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 firing for a malicious redirector. The document body, though heavily obfuscated, contains a URL pointing to a redirector that masquerades as an Excel template. This suggests a phishing or malware distribution attempt, likely initiated via spearphishing.

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=dashboard+excel+2016+template In PDF document text
    • http://files.dixianehallaj.com/uploads/1/3/1/3/131380087/03e53a.pdfIn PDF document text
    • http://liwazamo.fionasophiaphotography.com/uploads/1/3/1/1/131163653/metorekolokopis.pdfIn PDF document text
    • http://files.villadelphini.com/uploads/1/3/2/8/132814306/jerino.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/1/0431/4890/2557/files/aoc-_cv-_100.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0704/1958/files/85634827130.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0873/5907/files/xeplayer_android_emulator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5809/4495/files/relojanevijanurujab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8699/3813/files/3d_printing_in_food_industry.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0356/6486/files/free_domain_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9183/5546/files/77802170186.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4469/9288/files/bitumen_adhesion_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37638787324.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4946/6526/files/40649985065.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 3

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_off00009868.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9868 6000 bytes
SHA-256: fb4b4ee5d16781b262e16fec66899b9787209e98f41e1ddd83dd40186f0baf0a
font_01_sfnt_off0000acb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xACB3 10332 bytes
SHA-256: 38d2a9887bffd1a1ac12a76370771846848f453fb34f9366e59292437aec5468

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