Malicious PDF — malware analysis report

Static analysis result for SHA-256 b111b3725d9cac5b…

MALICIOUS

PDF

34.7 KB Created: 2020-08-18 19:56:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a02fe98498d8032966df2d73314987c5 SHA-1: a62f17299c29a9b766bee25524096b0a4970730b SHA-256: b111b3725d9cac5bde6cf4a28e01bd701be13f84a8ffbcb7420581fe4cf32d18
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of these links, 'https://ttraff.cc/pify?keyword=half+the+world+away+guitar+sheet+music', is identified as a malicious redirector. The document body, though partially corrupted, contains text related to guitar sheet music, suggesting a lure to entice users to click the malicious link. The ML classifier strongly indicates maliciousness.

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=half+the+world+away+guitar+sheet+music In PDF document text
    • http://files.asteroidea.ch/uploads/1/3/1/3/131379971/bddfb08.pdfIn PDF document text
    • http://files.stlukesway.org/uploads/1/3/1/8/131871730/dufilamapig.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/1/0436/9232/7077/files/fobuxibixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9378/6791/files/temolow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8419/3696/files/24976335337.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4742/9031/files/puniwino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4929/4756/files/ms_visual_studio_2010_shell.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/gifepizanakilokajevutinef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0236/3045/files/vejojudixizowadurubufagug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4714/7925/files/consumer_buying_behaviour_model.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9113/1554/files/pukivowasowirinolavidogug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4525/6344/files/xasogopojusodinepimesu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0449/3987/files/25388445708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8271/1201/files/11827160619.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7321/6411/files/88764499478.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 2

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_off00004771.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4771 5592 bytes
SHA-256: 36b4baeb0e908a574e82558180240fb6f2dff31fd408494ac356a319efe70107
font_01_sfnt_off00005a6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A6A 10284 bytes
SHA-256: 8899988a87432039ae29f9a2073c206fe0bfc8b62442c032ca63ce097dbd1e8b

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