Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6227e1e77459b78…

MALICIOUS

PDF

41.5 KB Created: 2020-08-10 01:34:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6548c0407daaf21a0500fcfa942a50fa SHA-1: 03442d263649c0b08e63e70faea6e4ce6dce03d6 SHA-256: a6227e1e77459b78b16d0943ca2769d3b3b33582e117254464a33bcea62dfadc
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=jurnal+bronkitis+pdf'. This indicates an attempt to redirect the user to a malicious site, likely for phishing or malware distribution. The document body, though heavily corrupted, contains fragments of URLs and text that suggest a lure related to medical documents. The presence of numerous external PDF links, many hosted on Shopify, further supports the SEO link farm tactic, aiming to increase visibility and potentially trick users into downloading malicious content disguised as legitimate documents.

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=jurnal+bronkitis+pdf In PDF document text
    • http://files.glendha-tafny.com/uploads/1/3/1/3/131380733/rizisevirejipit_fomuwozifu_zojekomerutup.pdfIn PDF document text
    • http://files.woodhousearts.com/uploads/1/3/1/4/131407194/jevuj.pdfIn PDF document text
    • http://kefefev.stephenharrisonweb.com/uploads/1/3/1/4/131407005/5b0c5115be.pdfIn PDF document text
    • http://files.zarabethduell.com/uploads/1/3/1/4/131410545/zowowejadomunugaxox.pdfIn PDF document text
    • http://lanasimum.dltyoga.com/uploads/1/3/1/4/131406082/koderokir-jivig-rupize.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/1/0429/2080/4518/files/patofisiologi_asidosis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4130/8320/files/86577419365.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9496/6429/files/tamil_play_movies.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4601/0022/files/64844777499.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5419/3057/files/26234385019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1097/3083/files/91680676892.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2627/6775/files/15480262754.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1018/5621/files/gawuzolafelupomube.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7003/7911/files/99793287489.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9482/6396/files/after_effects_expressions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0985/8969/files/libro_budismo_significados_profundos.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_off00006551.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6551 5228 bytes
SHA-256: 43f030a691dd0cf5cfc7fc110586cb9144dadf4f716e61c8236d8d65d6732525
font_01_sfnt_off00007724.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7724 9992 bytes
SHA-256: 25440de44dbf4d6594080f9f516871b527cf67cc5c64514bf25bc491d3cdb2b2

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