Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c108effb3950fe0…

MALICIOUS

PDF

35.0 KB Created: 2020-08-22 17:19:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6274c0646227cf80658dcd5c938c0fb5 SHA-1: 5b79a5305b6afbd93a1a382850f65fe5aa804a86 SHA-256: 9c108effb3950fe0db2b8cf8707f5e9ea4702dd302de23e20335ac3d141e1638
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text suggesting a lure related to 'sheet music'. The primary malicious URL identified is https://ttraff.com/pify?keyword=edith+piaf+milord+sheet+music, which likely serves as the initial entry point for a further payload or phishing attempt.

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=edith+piaf+milord+sheet+music In PDF document text
    • http://worenokop.youngworlddayschool.org/uploads/1/3/1/6/131637016/suvobawusonav.pdfIn PDF document text
    • http://files.mariestewartconservation.com/uploads/1/3/1/4/131408103/2658431.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/1/0433/6146/8567/files/78891770984.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/7992/0803/files/oxford_discover_5_grammar_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7788/6367/files/78980804431.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3127/2351/files/94527131803.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0961/2712/files/summoning_calculator_rs3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/5057/6541/files/performance_appraisal_examples_quality_of_work.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5097/5910/files/cissp_testking.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4827/1014/files/pojedynek_mary_balogh.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6717/1223/files/72813517210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1079/1323/files/wewobid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6865/2697/files/akka_framework_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9502/4033/files/pick_a_number_between_1_and_8.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3273/7942/files/fexezanej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2190/8640/files/kiran_bpsc_question_bank_download.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000049fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49FE 5352 bytes
SHA-256: afbe2a3347e8ca4a8a7e59528e03dc7ca06c2cd6c4097ddbc16c6d737ca3065b
font_01_sfnt_off00005c0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C0E 10232 bytes
SHA-256: c38644537534a0e591bd4335e248b33fccb30f4a67a3c03d1bbb14b128dde896

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