Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9c05071805d62c8…

MALICIOUS

PDF

46.5 KB Created: 2020-08-01 05:14:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: af1ee9394906e9062f14db352b8ba68d SHA-1: 361f6b9ca0da441474e2684ae347b8f6a516cb09 SHA-256: f9c05071805d62c88b1c3f26e598b9547c5e711fe9b1a3720c2e20d8bb1187aa
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is presented as a manual for a Cheerson CX-10C drone. The document also hosts a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic. The ML classifier strongly flagged this PDF as malicious. No scripts were extracted from this sample.

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=cheerson+cx-+10c+manual In PDF document text
    • http://files.wearekids.org/uploads/1/3/1/0/131069744/9ede4.pdfIn PDF document text
    • http://files.denisecummins.com/uploads/1/3/1/8/131856065/022f902c20b9a20.pdfIn PDF document text
    • http://files.spacecityflyco.com/uploads/1/3/1/3/131383747/026c362cdf31.pdfIn PDF document text
    • http://files.raort.net/uploads/1/3/1/4/131437157/fdaad2c2.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/1/0437/0500/8293/files/77489991669.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4474/8950/files/goduwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7659/7400/files/34085845109.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9657/8979/files/95205337850.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0521/3847/files/94343738679.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0365/7887/files/fumiwakapapogubiwukam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0921/1549/files/fejaravamebib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1257/0783/files/kinajamunutikugupa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7089/7824/files/wadimibunojisosuxitufulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2269/4046/files/nadubukil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6464/0159/files/84986586844.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1056/3994/files/pelomok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0928/6042/files/84597100269.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000077a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77A8 5240 bytes
SHA-256: a8b7542fe3115162307cc3ee5e5ed812c5430882b2ea12f300d766448906a0cf
font_01_sfnt_off00008951.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8951 10468 bytes
SHA-256: 5164b2ef2f9399342fd1734d5f0ab26eaf02ee2cf95755afea75835ebd029a04

Open this report in the interactive analyzer, or submit your own file for analysis.