Malicious PDF — malware analysis report

Static analysis result for SHA-256 396581f10a15eac8…

MALICIOUS

PDF

40.3 KB Created: 2020-08-19 07:51:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e693bd0f5da7a7bedcda87ae98b0bac3 SHA-1: bf39027c4baf829549649d1d77e1c666902e0131 SHA-256: 396581f10a15eac8bdaaabdcaab1c62e640d4e7c01371902e2d5fca6df61ee9c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a malicious redirector link disguised as nutrition information, which is a common social engineering tactic. The ML classifier strongly indicated maliciousness. The document body and embedded links suggest a link farm or redirection scheme designed to lead users to malicious sites.

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=old+carolina+bbq+nutrition+information In PDF document text
    • http://files.saltyrein.com/uploads/1/3/0/8/130815303/sepuvovotav_wenogijifegid.pdfIn PDF document text
    • http://files.jennyfinkelyoga.com/uploads/1/3/1/0/131070379/lomupumirap-sodubuwofesakef.pdfIn PDF document text
    • http://files.wallmanart.com/uploads/1/3/0/7/130740242/tekopatu_punozuworilo.pdfIn PDF document text
    • http://files.southamericanlife.com/uploads/1/3/1/3/131379553/molepifutelokeravuve.pdfIn PDF document text
    • http://ferewasa.reasonandjustice.com/uploads/1/3/1/8/131856033/risafijex.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/1/0428/4389/8019/files/86328266204.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0486/2374/files/9594931212.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4492/0734/files/ancient_rome_culture.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3037/1739/files/61238818728.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8638/8136/files/kenutukupozafexewi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9322/0766/files/estadistica_descriptiva_ejemplos_resueltos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5057/3719/files/minotilefuxewitob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2880/5789/files/remuvojojelarujabuduj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0746/6916/files/pesetuwozuxidajitefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7768/7701/files/nozafureruvopafevama.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_off000052b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52B2 5044 bytes
SHA-256: add2c0137411cc513832e7ed589fd63569dc227326b7dd2757103ae16145fa7b
font_01_sfnt_off000063af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63AF 10108 bytes
SHA-256: 5d1b1b2f1e5328d8b76ff12a21a23588d6da8c42e13130f384691c08f9c6fbd6
font_02_sfnt_off0000864d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x864D 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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