Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b62c4ce4cc53822…

MALICIOUS

PDF

42.2 KB Created: 2020-08-02 20:25:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: feb3a23aa7d4f14cde7a8d12fba0c4e2 SHA-1: b3fabcdb5b92a2a496eb593ca5b85c5ba74e8706 SHA-256: 0b62c4ce4cc5382272699cac6ceb82a2f54dacdfb4e7c12583b03105a3249861
202 Risk Score

Malware Insights

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

This PDF document contains numerous links to external resources, including a redirector URL identified as malicious. The presence of a "download button" lure and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content. The document body, though heavily obfuscated, contains URLs that are part of a link farm, suggesting an attempt to distribute malicious files or lead users to phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=santa+rampage+free In PDF document text
    • http://files.khang-le.com/uploads/1/3/1/6/131606035/6361321.pdfIn PDF document text
    • http://files.sarahkilchgaffney.com/uploads/1/3/2/6/132696104/kupufupovizabetizoz.pdfIn PDF document text
    • http://files.ourotherskeeper.org/uploads/1/3/2/6/132680860/62060.pdfIn PDF document text
    • http://files.warrensprinting.com/uploads/1/3/0/8/130814754/gebunupuduwibegera.pdfIn PDF document text
    • http://files.artandroulla.com/uploads/1/3/1/3/131380773/6e51b943ebb202b.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/1/0433/1778/8830/files/92668154525.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9684/2142/files/makanojunijotajogaxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5702/9019/files/varimadosikujibipuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9322/0758/files/doxonemi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7036/5602/files/8206037039.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7719/8229/files/13491826387.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/4207389826.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7482/2044/files/42953495733.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7957/3414/files/potuxus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/zigir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6021/3398/files/relipupivupekujajoguvez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2399/8874/files/21486957915.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0513/1421/files/ato_mix_virtual_dj.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005db4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DB4 5116 bytes
SHA-256: 16f4897019ea15b06cb993bdda456e5482f29e8962658af6e0f6b13a667011bb
font_01_sfnt_off00006f09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F09 14544 bytes
SHA-256: 3b1a2d71f14ce8dd3a2756a087aa120b2da68c6805c87c59098203a7dc38995b