Malicious PDF — malware analysis report

Static analysis result for SHA-256 86c22ce1ca530e3e…

MALICIOUS

PDF

33.5 KB Created: 2020-08-21 16:57:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b9b16c1393050f52506df7230f2edc7d SHA-1: 2f9792ff18c4d412ee8d745bf699ed800de0cfb8 SHA-256: 86c22ce1ca530e3e28c5e88d4d4033b4f874332a314f1be274c15312a32237b5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains text suggesting a 'catalogue' lure, which is consistent with the malicious redirector URL. The presence of a large number of external links, including a link farm, indicates a phishing or scam attempt.

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=capral+extrusion+catalogue+pdf In PDF document text
    • http://kabuj.clearcreekbands.com/uploads/1/3/0/7/130776436/7f89d5.pdfIn PDF document text
    • http://muzuwoz.mondaydesignstudio.com/uploads/1/3/0/7/130775478/tujixitogisureb-mokukozagezos.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/1/0433/0799/1208/files/39183220827.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8264/5665/files/55566171054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0397/7634/files/smd_meaning_texting.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5416/1310/files/ruguwerexogekefulatatelab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3789/2509/files/mibodukowopowubi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0755/8310/files/rijeridemu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1109/4174/files/23725071361.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2421/9288/files/calisthenic_workouts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0953/2316/files/24351156285.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6856/3355/files/pigekuwejaxaner.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2277/6480/files/vamokanukijowina.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_off000046aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46AA 5296 bytes
SHA-256: a8a67318bd082a6b4e5a4329f69fee6c939244d50c364a54c44b0ea1f5f4f125
font_01_sfnt_off000058c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58C5 9504 bytes
SHA-256: 586e0e0fe75a20a7968dd6500b6c3f9feebd8a2b9444c41d1722a6ebb0b7b3c8

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