Malicious PDF — malware analysis report

Static analysis result for SHA-256 76adf35246b3d9fa…

MALICIOUS

PDF

53.8 KB Created: 2020-08-04 19:22:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: de701c72e45305730d953080278c6a46 SHA-1: 0b9d4785a4ff31977ec247e5b8926937634fcfa3 SHA-256: 76adf35246b3d9facd06fe797580f5577f679c3420eb03ceaf261874df71f260
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, including one pointing to a known malicious redirector. The ML classifier strongly indicated maliciousness. The document body, though obfuscated, contains the redirector URL, suggesting a phishing or scam attempt to drive traffic to malicious sites.

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=actinides+properties+pdf In PDF document text
    • http://files.willrobinsonauthor.com/uploads/1/3/1/8/131871568/xatofijekorawijajoru.pdfIn PDF document text
    • http://files.smithsrepair.com/uploads/1/3/0/7/130775413/3948460.pdfIn PDF document text
    • http://files.mrtsautorepair.com/uploads/1/3/0/8/130874015/d8a9116.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/1/0427/5830/8006/files/30495622183.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/41718344304.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7218/4732/files/76104143383.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0369/9615/files/zosomugojosagedifaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8161/9861/files/sibatiduwovivunuzul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3683/3954/files/masoziwigufimiwiga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dazexirorojukulovamedifuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1478/2103/files/wefulabivufidarefo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1850/0765/files/wataxezifido.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3348/5727/files/power_of_autosuggestion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8784/7843/files/lumiwiligene.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_off0000963e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x963E 4896 bytes
SHA-256: 8ef8babbef001aab0b0b035f3b4e3390a40f060034f6fccab91352947414bfd0
font_01_sfnt_off0000a6fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6FD 10476 bytes
SHA-256: fb2012386a11c481e487d54766f546c6643b20ffde891c557df6fe0cb46a5246

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