Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cebd9b72d4e7e37…

MALICIOUS

PDF

43.6 KB Created: 2020-08-17 00:14:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 257c00b959ab829853a054d1bbb81251 SHA-1: 2dd7c7007c83523ec56b2501a1c36bffda378222 SHA-256: 5cebd9b72d4e7e37b32ae54dc2803cd3748f12b76984b6f5f1c64db52fa52b9a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service, suggesting a link farm or phishing lure. The primary redirector URL, 'https://ttraff.cc/pify?keyword=printable+flyer+templates+free', is flagged as malicious. The document body also contains this URL, indicating an attempt to trick users into clicking it for a fake download. The ML classifier strongly supports the malicious verdict.

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.cc/pify?keyword=printable+flyer+templates+free In PDF document text
    • http://files.kittywatchjapan.com/uploads/1/3/2/7/132740633/154959cc2d80b7.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/1/0431/5011/4965/files/antiepileptic_drugs_a_clinician_s_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9869/3022/files/hyundai_elantra_2020_user_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1790/3008/files/dj_sagar_cg_mix_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3529/5905/files/48861879384.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1126/7990/files/35668973931.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mowelikuzamutaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1444/6489/files/safety_equipment_certificate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6397/4815/files/rirunujalenumul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5122/0120/files/numeros_primos_y_compuestos_6_primaria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/jufogowaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6694/9786/files/bejufawilobipamu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6132/1634/files/80062546124.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 1

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_off00005fdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FDB 4968 bytes
SHA-256: 48d204a68608c8a14f56f52e84881c48cd096bdaefbe864c3f1927098edec339
font_01_sfnt_off00007096.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7096 10260 bytes
SHA-256: 59c3101a70b711c266ae3d889eae355b94401b0a350b3604a43f0c53b8e65438
font_02_sfnt_off000093b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93B8 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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