Malicious PDF — malware analysis report

Static analysis result for SHA-256 63f01e0fc3cdb8a3…

MALICIOUS

PDF

45.4 KB Created: 2020-08-14 15:37:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c24809c27ab48537f8ec4a45ec92000b SHA-1: dc18b153b4439216a8a8cd03d7ce2202ec5f9131 SHA-256: 63f01e0fc3cdb8a3c0cea9448f026c13ddd4320e040aa72c5c29a25fc1f865bf
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting an attempt to drive traffic to malicious sites. The document body, though heavily obfuscated, contains text and URLs that align with a lure for a "camera apk" download. The primary redirector URL is associated with known malicious infrastructure, and the ML classifier strongly flagged this PDF as malicious.

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.cc/pify?keyword=you+cam+perfect+camera+apk In PDF document text
    • http://katojuwe.betanuchapter.com/uploads/1/3/1/6/131636948/a0e9d924.pdfIn PDF document text
    • http://files.jrpaddon.com/uploads/1/3/1/3/131398472/beae019bab08ff.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/1/0439/2153/9240/files/3121665210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2556/1757/files/word_to_converter_offline_software_for_windows_7.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4610/9341/files/mefabenibuxefinu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1695/3767/files/29336264530.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3544/3871/files/victorian_era_literature.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0996/4192/files/bartleby_text.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9862/0569/files/vojodulotub.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

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000565e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x565E 2992 bytes
SHA-256: 1236e17762dce2a8f6b10860ccc60cafd088ec2790dce4b53f0cc6daad1d0d31
font_01_sfnt_off0000610e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x610E 4976 bytes
SHA-256: 0a7662628b4b011ab66aa200b94ef901dc34e6e2bb21681cb0f3acc0c931eada
font_02_sfnt_off000071ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71ED 9672 bytes
SHA-256: 359b7f64dcedd3c2b34f733d147a591177fcfccbdb1fa519c61c0bef84ccffe6
font_03_sfnt_off00009335.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9335 16204 bytes
SHA-256: d25787a4c26d5dfe11954a191e1a78b06a4864afc6c230ccab670610fb8eef4c

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