Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ca639553f5285a2…

MALICIOUS

PDF

43.8 KB Created: 2020-08-12 09:36:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 563eeac96ea921be753d4fad9d291e04 SHA-1: 7af54af68a7995509fbd5ef9d6030e0e929ec830 SHA-256: 9ca639553f5285a2b6ad265221eaeea9540ed4a5c61042b0e5b1b706de1605d8
202 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector service (ttraff.com) that is known to host malicious content. The document body also contains a call-to-action phrase, suggesting a social engineering lure to trick the user into clicking the malicious link. The presence of a malicious redirector link and a link farm indicates a likely attempt to drive traffic to malicious infrastructure, possibly for further exploitation or phishing.

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.com/pify?keyword=pdf+to+word+converter+editable+text+online In PDF document text
    • http://loxej.edmontoncwl.org/uploads/1/3/1/6/131636644/salize.pdfIn PDF document text
    • http://files.ssespta.com/uploads/1/3/0/7/130776661/1511188.pdfIn PDF document text
    • http://files.tvlsolutions.com/uploads/1/3/2/6/132682723/kumetedusi_dudusixozit_gewikibozaju.pdfIn PDF document text
    • http://fusuxovo.frostedsugarcookies.com/uploads/1/3/2/3/132303382/busejajonapu.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/1/0431/9212/3560/files/mastering_elliott_wave_neely.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5791/3762/files/31726688543.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3495/9263/files/best_pc_tune_up_software.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4655/8106/files/72589525438.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7505/0395/files/bodegirugojofiwijos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8208/7576/files/weburonoribexanenepejuvu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7927/0561/files/dave_rubin_net_worth.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1972/2152/files/guwatotebazarinarori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1596/9688/files/45037320417.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3676/0485/files/derabitasinemajig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4087/4408/files/facebook_logo_download.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_off00006cd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CD5 5200 bytes
SHA-256: 7b9dbb2e7ea5dd626f30b02dfbdffc238ea0d223b54e52bc3a39444d6aa43923
font_01_sfnt_off00007ea3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EA3 10420 bytes
SHA-256: ddad5c96ac321c77c2f8e6024a808567dcd3916b71101c88aa899901a5f0fed5

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