Malicious PDF — malware analysis report

Static analysis result for SHA-256 06464304f3b1755e…

MALICIOUS

PDF

53.4 KB Created: 2020-08-31 21:58:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5c24457f53cf9f6c744f9faa1219854a SHA-1: d07824761f98910c6d6ce6a62faf37b9c2dbdc79 SHA-256: 06464304f3b1755e37dc7b4d0332baf8f3be7a8d99163f77beab444c256c2c29
194 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to a redirector service. The document body suggests a lure for sheet music, which is likely a pretext to drive users to the malicious URL. The ML classifier strongly indicates maliciousness, and the presence of redirector links confirms a malicious intent to lead users to potentially harmful content.

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=mariage+d%2527+amour+piano+sheet+everyonepiano In 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/1/0429/4118/6215/files/bogie_train.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6977/4750/files/baba_yetu_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5497/9477/files/canon_xl1_s.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8795/3053/files/balance_wheel_of_life.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4121/6919/files/50932115971.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7256/8996/files/nusodenufire.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_a7dd1623cdc14e0389253627334ffbe6.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_8afbc1d284604938b04773cf9b93acff.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/0bcf16_638b178e51e2446a8315cb04524429cd.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b9801a_6b3abdcf59864176ad680f29a8574331.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/47b1e8_b9b2070dc94348de81cdcfa72b8baf67.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/9ea91e_2a8eba651b3d46f58f825a0affbae9ee.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 3

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_off00007aa5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AA5 4540 bytes
SHA-256: 1c45ae965081101187260ee0301d40b4e3d12d29f5343a822c4eee2c9ac0513e
font_01_sfnt_off00008a60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A60 5540 bytes
SHA-256: 0a58f53b9cc98adc5c19675dd42e4af1b7329ba5734c803682dae81737ec1559
font_02_sfnt_off00009d31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D31 13512 bytes
SHA-256: 803c031fab34828428120b77640a6d24fcc37d7117d517425e58e93d4097d10f

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