Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc09d993eb2e1ae8…

MALICIOUS

PDF

34.5 KB Created: 2020-08-01 13:37:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4de789fb227611b4014751fc986e43f1 SHA-1: d64bef0aebf35a20816d6ad37fb0983757da0291 SHA-256: fc09d993eb2e1ae8878c479fd5fab97990e4b37d6b0334df6f8000cfbf9b051b
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body, though partially corrupted, contains text that appears to be song lyrics and a URL that matches the malicious redirector. This suggests a social engineering lure to trick users into visiting a malicious site. The presence of numerous PDF links, many hosted on Shopify, indicates a link farm strategy to obscure the final malicious destination.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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=a+warrior%2527+s+call+lyrics In PDF document text
    • http://files.christchurchdayschoolmtp.org/uploads/1/3/2/7/132710795/2941213.pdfIn PDF document text
    • http://files.moaehawaii.com/uploads/1/3/2/7/132710603/jujomer.pdfIn PDF document text
    • http://files.glitzybelle.co.uk/uploads/1/3/1/6/131606262/4082368.pdfIn PDF document text
    • http://files.saltcavenh.com/uploads/1/3/1/4/131483317/fubugixun.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/1/0428/9835/8432/files/vasopamomakazemujavinis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0688/5027/files/92926828340.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90840236881.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9726/8128/files/logub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7065/1542/files/42635858081.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1801/8203/files/16818470606.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3393/6547/files/vigusoxifobuletujoku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8579/8301/files/35978918761.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4751/7341/files/93286140586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/97503793953.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8370/3206/files/3512237761.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/golizikedakumeru.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004cfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CFD 5012 bytes
SHA-256: 29804ee8ea7ca82e3ed82a77a6469437230c6e2be264f511f78fc50a1338b6ad
font_01_sfnt_off00005e31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E31 9380 bytes
SHA-256: ba41f2834834891959328a0910b848fb017eb42d4be187e79da48bb5fa2b6c04