Malicious PDF — malware analysis report

Static analysis result for SHA-256 c80fdc220e0e3099…

MALICIOUS

PDF

43.2 KB Created: 2020-08-05 23:28:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0f35e9e80202ca13f12a0b8ae968dc70 SHA-1: acecbf5443d42bfcc16c5709bfa124eca549dd3d SHA-256: c80fdc220e0e3099d9fcc852c5c3651bfacbeea06c68d4da68d64d6901ba2a4a
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 'ttraff.com'. The document body also contains text and URLs related to downloading Adobe Reader, suggesting a social engineering lure. The presence of numerous Shopify links, one of which is flagged as malicious, further supports the attack pattern of distributing malicious content via seemingly legitimate platforms.

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=adobe+reader+pdf+download+for+android In PDF document text
    • http://files.designedacoustics.com/uploads/1/3/0/8/130814056/0eb8465045912.pdfIn PDF document text
    • http://files.untbom.com/uploads/1/3/0/7/130776695/1edf4fd.pdfIn PDF document text
    • http://files.lect2.org/uploads/1/3/0/7/130738723/bekowakokevi_dowopave.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/1/0432/5310/4790/files/65801782318.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8731/4590/files/tukina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7692/7141/files/rezed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1627/3563/files/pusuberigerugulujum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7722/8957/files/18150985478.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4376/6950/files/99094306735.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7689/3334/files/lalatolobuxozobevaxaxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7287/1832/files/42439365546.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3989/1357/files/audiometria_infantil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0076/5336/files/pegemozafuwosiwazata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4802/6780/files/16146926909.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7247/1718/files/ti_what_you_know_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2393/2311/files/90495536243.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 2

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_off00006c1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C1E 5080 bytes
SHA-256: a8222a6aab3052b8f4e85a05b2a866929f49b830631bbd9b50c03df9167074d8
font_01_sfnt_off00007d81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D81 10096 bytes
SHA-256: f09d6fe8d427f87c904921dcd3c208a4ab0a3f169030281ab461b20357c5f3f5

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