Malicious PDF — malware analysis report

Static analysis result for SHA-256 443ea7156274c450…

MALICIOUS

PDF

37.8 KB Created: 2020-08-23 04:02:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e90170a6d544fc12a60ddac1f8ac85bd SHA-1: 1d6d029408097f99ba091883834bde2b673832e9 SHA-256: 443ea7156274c450f95562d9be95662232ed0b053b74e68f26459d38f177fea5
194 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one pointing to a known malicious redirector. The document body and heuristics indicate a tactic of creating a link farm of SEO-optimized PDFs, likely to drive traffic to malicious sites. The primary malicious URL identified is https://ttraff.com/pify?keyword=2003+chevy+trailblazer+owners+manual+pdf, which is used as a lure.

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=2003+chevy+trailblazer+owners+manual+pdf In PDF document text
    • http://zibujen.lakeodessaarts.com/uploads/1/3/1/4/131454215/tosivepekivo.pdfIn PDF document text
    • http://jegez.grassybuttegoats.com/uploads/1/3/1/3/131378776/zijasiz.pdfIn PDF document text
    • http://files.jenndepaola.com/uploads/1/3/0/7/130739631/76e768.pdfIn PDF document text
    • http://files.pixieglamour.com/uploads/1/3/1/3/131398143/kinisad_zemeparomo.pdfIn PDF document text
    • http://kagor.solikaoneillportfolio.com/uploads/1/3/0/9/130969573/95d04419679.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/1/0432/2459/6642/files/4902317998.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/9813/1880/files/barron_s_gre_21st_edition_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7111/8235/files/asking_for_and_giving_permission_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1570/8573/files/60799226822.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1991/7717/files/89123425111.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6104/1569/files/pos_blumatica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9197/5580/files/zelinufexupoxuwukomibivon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6371/3690/files/salemumikemebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7108/6492/files/bioreactor_configuration.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4209/4756/files/arraylist_two_dimensional_android.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_off00005423.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5423 6180 bytes
SHA-256: 811e08629589ff9f44fb68f45bb7aa01dd2c321d20605f1538e0b338ba6035c7
font_01_sfnt_off0000690f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x690F 9672 bytes
SHA-256: 56696770d6664a2f6505ae4da669f4690c7fd43935cbc6996c9cbe8d6f7e4ea5

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