Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5a7e94e33b0d882…

MALICIOUS

PDF

62.6 KB Created: 2020-08-09 01:31:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4ba919a386bd0f08b0670960f92d07ec SHA-1: b6b10035b6b6f0d392ed757409208776b70471dd SHA-256: f5a7e94e33b0d88266a66a4c0aa0f77a8deee40116e9413c76031a5df5d1321c
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to external resources, suggesting a link farm or redirection strategy. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is likely intended to lead the user to a malicious site. The document body, though heavily obfuscated, contains the URL that triggered this heuristic, reinforcing the malicious intent. The presence of many links, including those to benign-looking Shopify URLs, suggests an attempt to mask the malicious redirector within a larger set of links.

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=zaratustra+nietzsche+pdf In PDF document text
    • http://wokoxe.alexwarnick.com/uploads/1/3/2/7/132712358/nanaxopojefuterugi.pdfIn PDF document text
    • http://files.suigenerisjewelrydesign.com/uploads/1/3/1/6/131606094/5435671.pdfIn PDF document text
    • http://files.techandwisdom.com/uploads/1/3/2/6/132681436/5119648.pdfIn PDF document text
    • http://files.wolfeboroinn.com/uploads/1/3/0/7/130739570/wofafegaroxogi_sojude_xalugiratugawim.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/1/0434/3241/1298/files/buku_sejarah_bani_umayyah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4281/5643/files/modern_database_management_12th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5561/2058/files/eragon_s_guide_to_alagasia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8340/6239/files/bescherelle_la_grammaire_pour_tous_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/33374625424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2732/5343/files/couchsurfing_im_iran.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8460/3801/files/56769768407.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0213/4681/files/critical_theory_today_tyson.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6836/6760/files/73314007811.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7121/7572/files/14598818742.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7763/9075/files/3317489339.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5187/5481/files/jakapofukiparovaf.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 6

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_off0000b457.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB457 5216 bytes
SHA-256: a25b9e9a172210c95f84a7260bdc1d1cba445b74ed7b4d0d2d0d1f1bc470cdc2
font_01_sfnt_off0000c61d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC61D 11580 bytes
SHA-256: 70605333400a992abb856363021df9595400b30288004a4393c34e1906349091

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