Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3f227018e7bb622…

MALICIOUS

PDF

35.1 KB Created: 2020-08-26 07:23:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eeb38e8aea417258e60dae547ceb434f SHA-1: fca7f144145e2fcfcb64e57a3355aa56e02dd783 SHA-256: e3f227018e7bb6223d9b8a55ed118577f434b5835a54e9cced3d43fbac5ea570
202 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, many pointing to Shopify domains, which is characteristic of a link farm designed for SEO manipulation. One prominent link, 'https://ttraff.ru/pify?keyword=digimon+world+3+free+download+for+android', suggests a lure for game downloads. The presence of a visual download button further supports the deceptive nature of the document. The primary malicious redirector link is the most critical IOC.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.ru/pify?keyword=digimon+world+3+free+download+for+android In PDF document text
    • http://nuveki.kirstenlaplume.com/uploads/1/3/1/4/131482992/2899356.pdfIn PDF document text
    • http://files.safna.com/uploads/1/3/2/6/132680853/9128350.pdfIn PDF document text
    • http://files.saudiref.com/uploads/1/3/2/8/132814589/jakumarovifinok.pdfIn PDF document text
    • http://files.europeanwoodworkers.com/uploads/1/3/2/3/132302871/0300dfd2cf.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/1/0428/6119/9526/files/dota_auto_chess_app.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6749/7880/files/5582457261.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9357/3284/files/13897457532.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6341/7759/files/ketiwufegazurid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8134/3900/files/vorodarurijujexusevumow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4921/3349/files/passport_renewal_nz_forms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6660/5209/files/33327952131.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4395/2539/files/dulcimer_sheet_music_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5763/5735/files/51911383976.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9911/2095/files/42995659694.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6442/5634/files/mifuj.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A51 5304 bytes
SHA-256: 09eb723de92d909e5151d5f02c6d4e56d33e8a14211c3346156a255c3b9c41a6
font_01_sfnt_off00005c5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C5B 10288 bytes
SHA-256: d94e94f06665d3f3d2e46506c801fbbb7adadb3ea2028a0dd1bb8b9f806f190f

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