Malicious PDF — malware analysis report

Static analysis result for SHA-256 aff9a6347207b9f7…

MALICIOUS

PDF

41.5 KB Created: 2020-08-11 16:26:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 754fd4d4acf97e7d652d63008fb73502 SHA-1: bf5375cbe712db97e92f5229b9fc5d00b86b7a36 SHA-256: aff9a6347207b9f71d1b832e5b9769676960be97dc5403611ac6a403c468b7dc
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.cc). The document body text, though partially corrupted, includes the phrase 'A frame house plans free pdf' and a URL that appears to be the same as the redirector's target. This suggests a social engineering lure to trick users into clicking malicious links, likely leading to further malware or phishing content. The presence of numerous SEO-like links further indicates an attempt to obfuscate the malicious destination.

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=a+frame+house+plans+free+pdf In PDF document text
    • http://files.greatwhytesurfboards.com/uploads/1/3/2/8/132815002/zaxanidefadop-jemivibuxira-suzuzativu-pirem.pdfIn PDF document text
    • http://files.onecarecdl.com/uploads/1/3/1/6/131606864/zuwotivero_lalikedu_roviliwudipoza_faxowesod.pdfIn PDF document text
    • http://rajesun.oldetownesalisburymd.com/uploads/1/3/1/6/131606349/7032687.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/1/0433/5697/9351/files/37019777522.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1615/9385/files/88141429017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2207/3506/files/82650004784.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1294/8121/files/dungeon_world_fronts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1587/2423/files/wudidezadideku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9197/5580/files/41350513906.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2174/6847/files/kukirasevidemozos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1345/6550/files/97229612674.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9822/7353/files/28433551585.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7202/7814/files/3gp_bollywood_movies.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4310/1591/files/kappa_alpha_psi_rituals.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0778/6654/files/exothermic_and_endothermic_reactions_examples.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 5

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_off00006336.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6336 5268 bytes
SHA-256: b96e0965eada2389e4dca76dfd8860c6071a2e21b66ff3018ced446af6d148a2
font_01_sfnt_off000074f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74F7 10736 bytes
SHA-256: f14901b3738b1ef90eace9ad0f84c7c89e2366b9e558abb58e4f0be54aa0de51

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