Malicious PDF — malware analysis report

Static analysis result for SHA-256 02d233c72b52815e…

MALICIOUS

PDF

47.9 KB Created: 2020-08-28 07:41:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d0c93d0e10c27d2e5ea0b7aa7b09dbc6 SHA-1: 85e7c2470aae683ba75b4df77a0ee85f1b155f11 SHA-256: 02d233c72b52815ea74ba9faf5cac2475f714968f2e883815ce07bb53c77edc9
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 known for malicious activity. The document body, though heavily obfuscated, includes the same redirector URL and benign-looking PDF filenames, suggesting a lure for users to click through to malicious content. The ML classifier strongly indicates maliciousness, and the presence of numerous external links points towards an SEO poisoning or link farm attack pattern.

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=dulhe+ka+sehra+suhana+lagta+hai+mp4 In PDF document text
    • http://lugujepot.circlemstudio.net/uploads/1/3/1/4/131482853/xibulubibew.pdfIn PDF document text
    • http://files.alexklein.net/uploads/1/3/0/9/130969845/rixikul-jaduzitufubuw.pdfIn PDF document text
    • http://files.castaicbassclub.org/uploads/1/3/1/4/131483034/e454b343.pdfIn PDF document text
    • http://files.portageresourceguide.com/uploads/1/3/1/6/131606644/8719065.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/1/0428/9809/6284/files/cancionero_guitarra_rock.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1983/7333/files/94192841406.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2218/8701/files/water_1_egg_group.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30740110423.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2697/0786/files/exploring_biology_in_the_laboratory.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6905/4886/files/advanced_excel_2020_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4018/7303/files/zetulisirazituman.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7754/9728/files/55261375628.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2663/5157/files/zaxiteperujunebisip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1596/8667/files/kisamox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9937/4233/files/argumentos_a_favor_de_la_pena_de_muerte.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0455/7472/files/refojasubumodom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8306/2678/files/interview_tips_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4305/2953/files/62060839416.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://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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_off00004efe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EFE 5384 bytes
SHA-256: 3774860f4030b3774ad4b55a6a89000d3b6919ae649f3f94a84c277c1cc6ca13
font_01_sfnt_off00006126.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6126 3720 bytes
SHA-256: d5ecec3e822993868ba70e247019bcdb656a9fee58d620eb93bc70658e929280
font_02_sfnt_off00006c89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C89 10312 bytes
SHA-256: ab040e6a192b77abee7e46d1bfc2c4aada98c7b750aeba2b67aec4a4a159c183
font_03_sfnt_off00008ffd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FFD 19896 bytes
SHA-256: 4166d31f132b9747bb24ff0df8792dd5beedb80a791b074a8d70a1b2d2024670

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