Malicious PDF — malware analysis report

Static analysis result for SHA-256 05decbf5bd2a0297…

MALICIOUS

PDF

36.8 KB Created: 2020-08-25 15:44:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 267efeb35b2cab74240be68db198d5d0 SHA-1: 4b7ced4e66d68a766fa62687d98a5d2303a612f8 SHA-256: 05decbf5bd2a02973352fbbb55bf8192e24bc6d4bb89ee32b09c386ceeb82812
192 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) which is flagged as malicious. The document body contains a song title and metadata suggesting it's a lure to disguise the malicious links. The presence of a malicious redirector link and a large number of external PDF links indicates an attempt to drive traffic to malicious sites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9863

Heuristics 4

  • 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.
  • 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=assembly+rowdy+andamaina+vennelalona+song In PDF document text
    • http://lezesudu.zicklinfaa.com/uploads/1/3/0/8/130814328/4030404.pdfIn PDF document text
    • http://bubapap.hamiltonparksculpture.com/uploads/1/3/1/8/131856318/5083308.pdfIn PDF document text
    • http://files.briggs-artstudio.com/uploads/1/3/1/4/131454012/zozivixisapup.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/1/0433/9168/0666/files/danny_boy_flute_duet_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3741/7891/files/69411985687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2100/9053/files/fivokekaxefanujojo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4071/8496/files/dalenikakez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/bopufusalipimop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3142/7234/files/guboso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8652/8155/files/zulin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1824/8601/files/d_d_urban_bounty_hunter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6045/3785/files/43032410677.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0423/0805/files/35921070767.pdfIn 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004e6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E6E 5528 bytes
SHA-256: f8251ded63ef5dfa7e09731202ca7a5f85d59f28995520d749df30d7812c7d6f
font_01_sfnt_off00006130.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6130 14996 bytes
SHA-256: 353ca49c76bbf5a978f6eadfb012b618f5dc459d4b28ba347dd814e89f672df0

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