Malicious PDF — malware analysis report

Static analysis result for SHA-256 588c48902256b9a1…

MALICIOUS

PDF

49.8 KB Created: 2020-08-10 13:59:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 722bcd40b6a3c3f4da16707b7e247d58 SHA-1: 74ec304b715210192dbf31e06db56cb0f18d4e30 SHA-256: 588c48902256b9a12992cef514da9571d2160ea295b5eb135807a06f5295162b
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, many pointing to external resources. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=pdf+blob+angular', suggesting a phishing or malware distribution attempt. The document body text, though partially corrupted, includes references to 'pdf blob angular' and the wkhtmltopdf tool, likely serving as a lure. The presence of numerous Shopify links, while individually benign, contributes to the overall link farm characteristic.

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.ru/pify?keyword=pdf+blob+angular In PDF document text
    • http://megak.dobetterwhatyoudobest.com/uploads/1/3/1/3/131378950/46792872fa740d.pdfIn PDF document text
    • http://sumuw.magicmediabox.com/uploads/1/3/2/6/132683071/4045952.pdfIn PDF document text
    • http://nubegetom.davidcmahler.com/uploads/1/3/1/4/131482995/6251863.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/1/0428/9835/8432/files/8861538602.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1967/2472/files/75785759048.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6016/5797/files/xenuxukogejijenax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5986/1909/files/92385509399.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9032/2342/files/95987000239.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8341/5204/files/wopidodinatunod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3545/9738/files/guwopololijivedetit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2004/1886/files/mapebinadapakizolifik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1385/7692/files/bopimo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2964/0854/files/befakawudiketurunifuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65529241957.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9583/2216/files/goxelaxusakuwujibajek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7879/4917/files/map_of_equestria.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 3

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_off000074f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74F2 5036 bytes
SHA-256: 952f6f4becadcb4a91052da9ea1511ba4f4371e9f3b7ab0cc734b525dbb0d091
font_01_sfnt_off00008620.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8620 15924 bytes
SHA-256: 1b59eb6fc36eaa6d87e659f4792e8fec4c8d880f2eea3aece77185ac71fb891e

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