Malicious PDF — malware analysis report

Static analysis result for SHA-256 57ec798aab55f8ee…

MALICIOUS

PDF

52.6 KB Created: 2020-08-23 18:05:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 95c929d8b8ab42b83ed0f42da36f49ef SHA-1: 1245cf8bb8310a5d63b60325efda95b3a5ecaf29 SHA-256: 57ec798aab55f8ee128872bc1a3069dc6a31d210f1b6b398d6263c992b419bd0
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a critical redirector to ttraff.com. The document body, though obfuscated, contains the URL https://ttraff.com/pify?keyword=lol+auto+chess+cheat+sheet, suggesting a lure to a malicious site. The presence of numerous PDF links indicates a link farm strategy, likely to obscure the final malicious destination.

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=lol+auto+chess+cheat+sheet In PDF document text
    • http://nedab.carolinacavaliers.com/uploads/1/3/1/3/131383664/33e5df5b818.pdfIn PDF document text
    • http://files.mcgrewwoodwork.com/uploads/1/3/1/8/131856232/4bd4a4b32e21b.pdfIn PDF document text
    • http://files.handymantoledoohio.com/uploads/1/3/1/8/131856277/tanov_lewinosor.pdfIn PDF document text
    • http://xakide.simpsonchorus.com/uploads/1/3/2/6/132696067/2978f697de79.pdfIn PDF document text
    • http://files.niagaracentrendp.ca/uploads/1/3/2/7/132710621/zukegapekasaxu-nivirub-bawuwoponavofi.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/1/0432/4841/8973/files/73385054431.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0697/6422/files/zabexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7789/2251/files/lowes_muscle_shoals_al.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6862/8890/files/xuvimaxekifuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8766/7104/files/zujaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2674/1405/files/69826213793.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/7211/8941/files/galodolixew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8852/7013/files/billie_s_bounce_bb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6678/3904/files/atlas_of_abdominal_wall_reconstruction_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0333/0209/files/pilubuzekeveligawopise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8230/1094/files/goldman_s_cecil_medicine_twenty_fourth_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0923/5355/files/riledinunovexaso.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_off000085de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85DE 4732 bytes
SHA-256: 3c1025e445976c1ae59904012875be3845c8178f4510afa711d4941f4c28d094
font_01_sfnt_off000095ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95EA 14596 bytes
SHA-256: 2c7942de3705a9e348a9e850e7904ad92bda9e29bec336e21b382f87d4cb13c1

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