Malicious PDF — malware analysis report

Static analysis result for SHA-256 220331648bce7fca…

MALICIOUS

PDF

46.1 KB Created: 2020-08-09 11:11:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 979f645180d392c4cc8907582592ecba SHA-1: 038f19b0a1218fcc374219b81650aed61c27a41f SHA-256: 220331648bce7fca313081f2807f1c7511e018e6d7b176734748040190a51b6d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to external resources, indicating a link farm. One critical heuristic identified a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL that is also flagged as a malicious redirector. This suggests the primary purpose is to redirect users to potentially harmful sites.

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=biografia+de+patrice+lumumba+pdf In PDF document text
    • http://jubiwow.cdrayofhope.com/uploads/1/3/1/0/131070420/62eee.pdfIn PDF document text
    • http://files.jennderango.com/uploads/1/3/1/4/131407802/nirofu-newepatosafo-jatabuwof-zibak.pdfIn PDF document text
    • http://files.michiganhydrographics.com/uploads/1/3/2/6/132682039/nimafeke.pdfIn PDF document text
    • http://files.thepeacefulhealingtree.com/uploads/1/3/1/8/131856052/4ce7c45fa13.pdfIn PDF document text
    • http://files.ramblinghomestead.com/uploads/1/3/0/8/130874496/bc1666.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/1/0434/0134/7226/files/oracion_arcangel_san_miguel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2418/7549/files/30904108446.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5663/5805/files/6926463600.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5592/1817/files/rubosawukofojuvivad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0846/6845/files/84131564619.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7492/9319/files/gafetebetapokitonu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7306/1532/files/fujixuvixifozel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4993/4229/files/97492068352.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1035/1513/files/fexudaxupojoma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/pesineguvunaxoku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5872/5018/files/10059332754.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5661/0969/files/clipping_algorithm_in_computer_graphics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9716/9824/files/60916242351.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 7

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_off000075d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75D1 5488 bytes
SHA-256: 12eed40d1cf46fe4000808eb625d75a44ef80fc14126d8e97d256a7fd5c16775
font_01_sfnt_off00008866.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8866 10272 bytes
SHA-256: e397a4e578b3d2a28a7906a639c2eede4ec914edae191a23686f1ac6cb0d927b

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