Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0053412968b4510…

MALICIOUS

PDF

39.3 KB Created: 2020-08-08 10:39:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9f65acd51a1128db9c61a12a01de60c0 SHA-1: 779ddeadfa8adf39d1552854616a56d89618485c SHA-256: b0053412968b4510efa97307311f63f4e1c969c79ac073e8b2c7fa14beb15a88
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to a guitar tab and the URL itself, suggesting a lure. The presence of a PDF_MALICIOUS_REDIRECTOR_LINK heuristic firing confirms the malicious intent of the embedded URL. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, many hosted on Shopify, likely for SEO manipulation or to obscure the true destination.

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=suspicious+minds+guitar+tab+pdf In PDF document text
    • http://fisuk.westminsterprez.com/uploads/1/3/1/3/131398591/6983b0.pdfIn PDF document text
    • http://files.thehorshamkitchencompany.co.uk/uploads/1/3/0/7/130738513/4de4ed95d5819.pdfIn PDF document text
    • http://files.olaarte.com/uploads/1/3/1/8/131856636/7233203.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6200/9760/files/wivofev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8374/0822/files/67822026316.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2039/3380/files/basic_acoustic_guitar_chords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3993/1033/files/bifupomosibubi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zekimopesafirizaxos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4016/2467/files/zufodetati.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5684/8282/files/instrumentation_engineering_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5969/2198/files/55963673695.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0342/0570/files/54619212049.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1523/2923/files/1449867798.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7198/7098/files/paste_shortcut_windows.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004dd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DD3 5452 bytes
SHA-256: 394f6aaecd5ac23531010e569efce57727c21a1c9270267723d92c3a3b372eeb
font_01_sfnt_off00006026.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6026 9980 bytes
SHA-256: 976d64227448109356f8b2bc4900f2632a82e5d1c29b87ee6971636263933375
font_02_sfnt_off00008253.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8253 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c