Malicious PDF — malware analysis report

Static analysis result for SHA-256 e50aebeb1d2bfd95…

MALICIOUS

PDF

44.5 KB Created: 2020-08-23 12:11:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cdd70da307e0ef3a3ae2db4896019eee SHA-1: 6f0a7d5c4ab060a477f08e1a65965bb6caa5a8b1 SHA-256: e50aebeb1d2bfd95aed500766a3c2f51d1bdcd28090c4030248c941565081974
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=aha+2019+poster+guidelines'. This URL is likely part of a phishing or scam campaign. The document also exhibits characteristics of a link farm, embedding numerous external PDF links, many of which host benign content but serve to obscure the malicious redirect. No scripts were extracted, but the presence of the malicious URL is sufficient evidence of malicious intent.

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=aha+2019+poster+guidelines In PDF document text
    • http://files.laroccamiahouse.com/uploads/1/3/2/7/132740463/b95f80f.pdfIn PDF document text
    • http://files.stereosight.net/uploads/1/3/2/8/132815178/5859.pdfIn PDF document text
    • http://files.wicknsudsbydino.com/uploads/1/3/1/4/131455903/norapamolupivuf.pdfIn PDF document text
    • http://files.startseminars.com/uploads/1/3/1/8/131871980/7592553.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/1/0434/0652/4566/files/earthbound_nintendo_player_s_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1092/4437/files/max_heap_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4098/0643/files/quadratic_equation_worksheet_grade_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jokopewizemaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4986/0765/files/40208291606.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3298/4222/files/90221325465.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1942/6197/files/calculus_early_transcendentals_10th_edition_anton_bivens_davis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7901/6360/files/cp_company_hat_size_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3952/1958/files/54957984276.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006130.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6130 5572 bytes
SHA-256: 7b3b3d6c525790700d4deccb91bf317f4a977a6de7fd6c1f5a48be013bdb776c
font_01_sfnt_off0000741d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x741D 10324 bytes
SHA-256: cb122b8b89ec3a8f5e1902bc922263402c690e8c99bee7b92aaa577d19dec8f0
font_02_sfnt_off0000976c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x976C 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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