Malicious PDF — malware analysis report

Static analysis result for SHA-256 12712eb912952262…

MALICIOUS

PDF

40.3 KB Created: 2020-08-20 09:59:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0b121beb363384403ed0ac8fcb09c7ff SHA-1: 654b6a49a29688805e4b17c73d0953287ecab174 SHA-256: 12712eb91295226213e47d416fffd01e530389c5e89b686b3e4ba8bf4c4bc441
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to a redirector service that ultimately leads to malicious infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be a lure for sheet music, suggesting a phishing or scam attempt. The ML classifier strongly indicates maliciousness, and the presence of redirector links confirms a malicious intent to direct users to harmful sites.

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.ru/pify?keyword=undertale+flute+sheet+music+easy In PDF document text
    • http://files.faliselogisticstravel.com/uploads/1/3/0/7/130739247/3199638.pdfIn PDF document text
    • http://files.aliciafink.com/uploads/1/3/1/4/131454850/385256.pdfIn PDF document text
    • http://files.vivekshah.net/uploads/1/3/1/6/131637239/laropanonele-sapidefiwaji-gijufo-davabosilab.pdfIn PDF document text
    • http://files.batholdtimedancers.co.uk/uploads/1/3/2/6/132695455/firinegif_dowejep_nirexipezajuno_kuroburono.pdfIn PDF document text
    • http://files.bluebonnetpta.org/uploads/1/3/1/4/131408204/dimavo.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/1/0435/7586/9599/files/fortwayne_craigslist_org.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4891/9450/files/vabugumajufavowaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8144/0168/files/the_bygone_days_violin_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9197/5580/files/32684230216.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9788/2773/files/98069655896.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6458/1525/files/the_strategist_holiday_gift_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5398/9534/files/immunization_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5672/6165/files/xavokexatugifu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7519/7333/files/executive_cv_template_word_uk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5583/2471/files/english_hd_audio_songs_free.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 7

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_off00005ee2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE2 5356 bytes
SHA-256: c7d29f624cb8e6a36155fcf55d364d0fd458dc328f1ecfb70dd0155bae055ea1
font_01_sfnt_off000070ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70EE 10268 bytes
SHA-256: f64f4cdfb645f1329bc147534f84c1cc9c8bad301197e01922f26f230eb34d27

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