Malicious PDF — malware analysis report

Static analysis result for SHA-256 7aa699e2438e909e…

MALICIOUS

PDF

34.8 KB Created: 2020-08-11 17:13:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d505d2aa7bbbe4ad994860e78d548c91 SHA-1: 9c710774a5cb24127f777f465e91d63b23ac08a9 SHA-256: 7aa699e2438e909e719f2d88265e2bb3751316030f7144de0f65bfe5720e5bec
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.com) known for malicious activity. The document body, though heavily obfuscated, includes the primary redirector URL, suggesting an attempt to trick users into downloading further content. The ML classifier strongly indicated maliciousness, and the presence of a link farm reinforces the phishing or malware distribution intent.

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=me+before+you+pdf+full In PDF document text
    • http://files.troyamsti.com/uploads/1/3/1/4/131455337/ziniraremimazubugaga.pdfIn PDF document text
    • http://files.battlekatpdx.com/uploads/1/3/2/6/132695531/3075235.pdfIn PDF document text
    • http://files.billiardsaustralia.com/uploads/1/3/2/7/132740371/xenozeru.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/1/0433/3626/9983/files/alchimistul_paulo_coelho_romana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4978/8327/files/xiaomi_airdots_manual_portugues.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2119/5688/files/tc_electronic_sentry_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1102/2756/files/raredarulafosep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2200/8988/files/matilda_poem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0412/4580/files/63849443042.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3595/7147/files/mechanism_of_action_of_anti_inflammatory_drugs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5630/7107/files/dinedis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8184/3353/files/parinelileripapi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zejakepujubuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/7895/5687/files/workout_plan_to_gain_muscle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4757/4949/files/1936751968.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 4

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_off0000495d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x495D 4892 bytes
SHA-256: de91a7b5cbe8019b113dc89b76fdb7d8a4dfc8312fa321060dbc0c62b934670c
font_01_sfnt_off00005a1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A1C 10808 bytes
SHA-256: a591f36c4e46af65faa308adf3c63ae6c9a0ef654c380041ac673501024b8813

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