Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff601eb872fa3245…

MALICIOUS

PDF

51.3 KB Created: 2020-08-11 14:00:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 89c3ad56fd101d1c321b02497b2cc211 SHA-1: ef9083e868ddbcff9b2504e96490bb8f782fdeaa SHA-256: ff601eb872fa32459f83c9833f98607e3b6b87cfcd45ddb8991c180776625afe
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The heuristic PDF_SEO_LINK_FARM indicates a link farm strategy, likely to obscure the true malicious destination. The presence of the malicious redirector URL https://ttraff.ru/pify?keyword=la+flor+del+azafran+amarillo+pdf suggests an attempt to lure users to a harmful site. 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.ru/pify?keyword=la+flor+del+azafran+amarillo+pdf In PDF document text
    • http://files.missjordansclassroom.com/uploads/1/3/0/7/130776841/5406440.pdfIn PDF document text
    • http://daxamim.sfhsfbla.com/uploads/1/3/0/7/130738568/xigabam_rerofe.pdfIn PDF document text
    • http://files.fcbands.org/uploads/1/3/1/3/131384635/vorudejufigajizud.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/1/0438/1717/3149/files/gubemobolizinezaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6667/0745/files/jiladudigatuzi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6961/8841/files/radevuvezupipavire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8442/2051/files/badinununabamoreto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tokisesuzarutaxiwiru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4190/7110/files/32858070822.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6105/9482/files/dozagunapufaxopuwilebijo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9628/6111/files/dulog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1395/6007/files/81700492883.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6113/9861/files/piratebay_proxy_reddit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0084/7781/files/gimp_user_manual_2._8.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5498/9466/files/2574979555.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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_off00007217.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7217 5000 bytes
SHA-256: 566ac2f32010755cdd7eb35df2121284b69d43de112de9ef41136ef5ed27a795
font_01_sfnt_off0000830c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x830C 11328 bytes
SHA-256: 5b9cd34bed53f500f21d113336fb1c94a355a58ca903e3944d4e980e9362e743
font_02_sfnt_off0000a7f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA7F8 16600 bytes
SHA-256: 0df8f9eb814bbd3240b375642bc429d1c2293575964bd8f14400a9868c8f9d9e

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