Malicious PDF — malware analysis report

Static analysis result for SHA-256 63bbf97e98544ae6…

MALICIOUS

PDF

41.3 KB Created: 2020-08-20 06:25:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5caeae499cafc5fba505072de584e32d SHA-1: 64504b6af4a6e1099fe67d57608a08cf43047665 SHA-256: 63bbf97e98544ae60c5fd71df5f5acf0e76fc122c76849cfa646034798089572
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service. The document body, though heavily obfuscated, contains references to a 'budget planning worksheet' and a URL that is flagged as a malicious redirector. This suggests the document is designed to lead users to malicious sites, likely for phishing or malware distribution.

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=budget+planning+worksheet In PDF document text
    • http://nifoji.jsmediadownunder.com/uploads/1/3/1/6/131607600/dikeluguvugimibop.pdfIn PDF document text
    • http://ravogake.blueridgecreativeco-op.com/uploads/1/3/1/6/131636612/07e59.pdfIn PDF document text
    • http://files.rosariorl.com/uploads/1/3/0/8/130813764/regijan_mofefosixu_xajuwu_zebaxugifutu.pdfIn PDF document text
    • http://files.neosvf.com/uploads/1/3/2/6/132683088/1104881.pdfIn PDF document text
    • http://files.spec22sales.com/uploads/1/3/1/6/131637797/zogumep.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/1/0435/9513/7187/files/ucsc_eduroam_login.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6876/7907/files/jobokosuwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3468/0216/files/radaxavorakit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4017/7314/files/comment_regrouper_plusieurs_dans_un_seul_fichier.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6248/4392/files/hearthstone_beginner_deck_building_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5180/9957/files/84246736171.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8893/7120/files/public_private_partnership_benefits.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2834/9079/files/applied_calculus_10th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0826/1285/files/131577593.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3567/2219/files/25261087648.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 3

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_off00006267.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6267 5428 bytes
SHA-256: a2d9cbed4f25c8b3bb936976cc1e801acd70864cd5e0e7b86932f483d9abc154
font_01_sfnt_off000074e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74E3 10444 bytes
SHA-256: 21ae47db86b9cf73de297d4f21be8910c557597958f18f007d61d73c82621127

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