Malicious PDF — malware analysis report

Static analysis result for SHA-256 74bebc76262ae1cc…

MALICIOUS

PDF

41.7 KB Created: 2020-08-17 00:47:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 947776797491c30f9d00d69f4b70544d SHA-1: dabb10a4b6be6fe905abd83b8f897e1bab9b43a1 SHA-256: 74bebc76262ae1ccb6a6172152db3fbb17fa98d99c521d5bd0ad59a2d4d0d673
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link farm and a redirector URL, indicating a phishing or scam attempt disguised as free sheet music. The embedded link directs to 'https://ttraff.com/pify?keyword=hallelujah+piano+sheet+music+for+beginners+free', which is identified as a malicious redirector. The document body, though heavily obfuscated, contains similar text, reinforcing the lure.

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=hallelujah+piano+sheet+music+for+beginners+free In PDF document text
    • http://files.ozarkcountryoutfitters.com/uploads/1/3/0/7/130738755/afbcaee4ec92.pdfIn PDF document text
    • http://files.serpentinecommunitygarden.org/uploads/1/3/0/7/130739631/1814424.pdfIn PDF document text
    • http://tepes.apeculiarthud.com/uploads/1/3/0/8/130873851/2d159d7.pdfIn PDF document text
    • http://files.ankawini.com/uploads/1/3/2/7/132740553/3158072.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/1/0440/5464/2853/files/death_note_movie_imdb_parents_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2865/1938/files/gekimamozivumewapusobexix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30072581460.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7215/0947/files/5465414042.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6349/1222/files/15861763680.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4062/1222/files/vakonipol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1278/4277/files/44088711134.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/3085/1233/files/ballade_pour_adeline_partitura_piano.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 4

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_off00005d0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D0F 5608 bytes
SHA-256: cc7c3aad2aaee041190cdbb025ed4066e56999dbe12065d7ceb2bd29b1dabb12
font_01_sfnt_off00006ff1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FF1 13332 bytes
SHA-256: 192b4cc26d0fe2153e103d27c155095425c9eca524cf7b6a92fa8363902fdfd6

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