Malicious PDF — malware analysis report

Static analysis result for SHA-256 d07a2e447c9f0c8d…

MALICIOUS

PDF

60.0 KB Created: 2020-08-21 14:41:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ba5cfa8e7cb8509735408403dda5cc1c SHA-1: 3bf4b11921251868cfa9ad9ba6e2710760885b9e SHA-256: d07a2e447c9f0c8d5a50a451852a7b930f41c828649506ae75e7bbb903941f4c
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with the primary URL pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the same lure text and URLs as found in the heuristics, suggesting an attempt to disguise malicious links as sheet music. The presence of numerous Shopify-hosted PDF files indicates a link-farming technique to improve search engine ranking and distribute malicious content.

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=deep+purple+keyboard+sheet+music In PDF document text
    • http://patuwa.dkgtexas.org/uploads/1/3/0/7/130738554/2288017.pdfIn PDF document text
    • http://files.professionalanarchy.com/uploads/1/3/0/9/130968920/3446257.pdfIn PDF document text
    • http://melixip.familypromisegf.org/uploads/1/3/2/7/132740214/wusedul.pdfIn PDF document text
    • http://files.communitycatcarecenter.com/uploads/1/3/1/4/131406592/8186700.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/1/0430/3909/6986/files/46342290512.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4024/2840/files/pevagesegemetotopewenari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3826/7809/files/14196520513.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5199/9637/files/81530391861.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4826/4089/files/69041388389.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4842/5889/files/42519654278.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5305/5128/files/converse_plataforma_negras_rebajas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8492/3555/files/jepirutugemi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2095/1450/files/cg_song_dj_mein.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8178/4726/files/bcbs_of_illinois_prior_authorization_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1946/7927/files/83180685207.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7496/1059/files/44165432763.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_off00008d03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D03 3044 bytes
SHA-256: d4e0b2484977518ac65d478fdfcf86ae5a183c6190c5e600535bca891b683588
font_01_sfnt_off000097b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97B9 5620 bytes
SHA-256: 0935ea657f5f1f8a43368b3f061af13dbb6b712cb3f239490474f9903a168d9c
font_02_sfnt_off0000aaa8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAAA8 17224 bytes
SHA-256: 70bf6a6e662dc9088efd9bc0c68e6598059521bee2853c27e6e363324ba3f5d3