Malicious PDF — malware analysis report

Static analysis result for SHA-256 6945695e274614a1…

MALICIOUS

PDF

52.6 KB Created: 2020-08-22 22:44:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 921edc52eaf777c948545378cf42d222 SHA-1: 983c14f12a45c739555bcd0ad0d8b8ea01f45c39 SHA-256: 6945695e274614a19006dd85f18ee1921ac257a2b62d288f30b30efd8146f2fb
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a primary redirector identified as malicious. The document body, though heavily obfuscated, contains text related to 'piano solo sheet music' and a URL that appears to be a lure for free downloads. This suggests a phishing or scam attempt where users are tricked into visiting malicious sites by the promise of free content. No scripts were extracted, and the maliciousness is primarily driven by the embedded links and the PDF structure.

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=piano+solo+sheet+music+free+printable In PDF document text
    • http://besimu.louisromegoux.com/uploads/1/3/2/8/132815961/7842684.pdfIn PDF document text
    • http://files.katytigersbaseball.org/uploads/1/3/1/4/131437885/zavutavixut.pdfIn PDF document text
    • http://sezinu.roadrunnerpizzafresh.com/uploads/1/3/0/9/130969352/2943179.pdfIn PDF document text
    • http://files.sherriobermark.com/uploads/1/3/0/7/130775856/6da45d70efb.pdfIn PDF document text
    • http://norixe.fastforwardctc.com/uploads/1/3/1/3/131384709/memolasemufipe-kedeladosad-figidegijiwu-bofogigimaxopa.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/1/0431/5214/6586/files/pobogowavirisosobuvelija.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2331/6630/files/widikonudoxutamixip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0899/1140/files/guide_michelin_campings_france.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8580/7268/files/1278434481.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9060/8285/files/katekabosupox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7542/6722/files/somexuvugolafoje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6124/7129/files/fusionner_des_en_un_seul_document.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4614/2106/files/sopcast_soccer_links.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4455/9258/files/59545473817.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wirokole.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1863/3894/files/33907874878.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3712/1951/files/44358130851.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000789d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x789D 5396 bytes
SHA-256: ff5dc679930aad8659b89340589859e3233dfeadd4841c2ceab652d0c5cc5cec
font_01_sfnt_off00008ac2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AC2 11176 bytes
SHA-256: 05e2e256b9c67e02779146c1becc833f77d8927860d336f1718c0274f80fd081
font_02_sfnt_off0000b029.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB029 16100 bytes
SHA-256: 84650fe671c70ac66f3af0994468c9b9feb42d01905b0f030d5781e095ef8e52