Malicious PDF — malware analysis report

Static analysis result for SHA-256 92cc520942fa2024…

MALICIOUS

PDF

44.4 KB Created: 2020-08-21 01:01:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4bc39a6684acd3acc32a8f769c526ea8 SHA-1: 981adbc094fde57200d7c4f200f275eeb9d7acfd SHA-256: 92cc520942fa2024e9949209d51eb6ad5231345891c3171bfc50b4a040057707
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded links, with one critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.cc/pify?keyword=fodlan+winds+violin+sheet+music'. Another critical heuristic indicates a PDF link farm, suggesting an attempt to artificially inflate search engine rankings or distribute multiple malicious links. The document body, though heavily obfuscated, contains references to sheet music, likely serving as a lure. 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.cc/pify?keyword=fodlan+winds+violin+sheet+music In PDF document text
    • http://mafifaxa.elafusa.com/uploads/1/3/2/8/132814940/3308795.pdfIn PDF document text
    • http://files.canyonfallsestates.org/uploads/1/3/1/0/131070402/9381831.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/1/0431/5709/4559/files/28459043834.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0672/8091/files/pojotogo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5306/2043/files/rejoxojozobumadex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2097/4242/files/63810569645.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8300/5093/files/pemutegizimerodifolimewa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8447/8632/files/bncc_baixar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8277/6725/files/89384619755.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_off0000621e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x621E 5188 bytes
SHA-256: a0d3c4a87cb4e5ab30d9a65ede84e06294babe6b040d87b5d817718f8305096f
font_01_sfnt_off000073be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73BE 15016 bytes
SHA-256: 4e7b996ce7fc92e9d13af9d634e2473ff658ada55dcddb8ea6be22a7b72baa8d

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