Malicious PDF — malware analysis report

Static analysis result for SHA-256 199b4562da9d1cdb…

MALICIOUS

PDF

54.8 KB Created: 2020-08-03 22:43:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c5297850d2f376dd8a24b45790cf72dd SHA-1: 35256c786927c2dd508bb6a82686368194b242cf SHA-256: 199b4562da9d1cdba0df2c88cd9f425f2a6fc5996f74de04a117005b91a08905
214 Risk Score

Malware Insights

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

The PDF contains numerous links, including one to a known malicious redirector (ttraff.cc), and is flagged by ML classifiers as malicious. The document body, though obfuscated, contains URLs that appear to be part of a link farm designed to lure users. The presence of multiple external links, including a redirector, suggests an attempt to lead the user to a malicious site, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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=pizza+max+biella+pdf In PDF document text
    • http://files.furnishingnewfrance.org/uploads/1/3/0/8/130873895/milakubogilonixed.pdfIn PDF document text
    • http://files.lefthandedgolfaustralia.com/uploads/1/3/0/7/130776314/8595320.pdfIn PDF document text
    • http://files.danskasfalt.com/uploads/1/3/2/6/132695543/lezuduzuditi.pdfIn PDF document text
    • http://files.haralsoncountyhistory.com/uploads/1/3/2/6/132681294/6507146.pdfIn PDF document text
    • http://files.farmlakeoutpost.com/uploads/1/3/2/7/132710763/cff8c1a8b0b0fa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9720/1567/files/67183826380.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6799/8362/files/vorefinesomefobaxid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9157/4430/files/33887020649.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jatebilebasa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6078/8390/files/74610455138.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8787/8549/files/fluid_mosaic_model_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3769/3851/files/legend_of_zelda_nes_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3229/0215/files/nekurivilunibufegiponizuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7905/7056/files/mubefedago.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/28664871254.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2266/3325/files/nepalirodetomedupujerasa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8434/1657/files/zojud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4114/4483/files/how_to_pair_plantronics_backbeat_fit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2556/2775/files/99772092118.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 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008bb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BB7 4664 bytes
SHA-256: 621f63c8379186e37b6e3a96fa7d3037c5ba5d8b97a4efa2a16e403b3f39ee67
font_01_sfnt_off00009b9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B9A 10684 bytes
SHA-256: c376e702cd6ac3de5d47341d0a88768730b1c1e477e759fe578ec88622a40218
font_02_sfnt_off0000bfb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFB6 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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