Malicious PDF — malware analysis report

Static analysis result for SHA-256 c266b512f3ea1744…

MALICIOUS

PDF

54.8 KB Created: 2020-08-22 05:53:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e6a92b871bd2143a54500b4bf92d2c7d SHA-1: 6318ad73380ceb21a631714ae76715c79d0a60c1 SHA-256: c266b512f3ea1744735b85fdf24977d7492ea719cc4f9869017ee1a6e571e5d7
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 pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the same malicious URL. This suggests the primary goal is to redirect the user to malicious infrastructure, likely for further exploitation or credential harvesting.

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=chennai+gana+sudhakar+song In PDF document text
    • http://files.gerhardsnewsblog.com/uploads/1/3/1/3/131380773/939221.pdfIn PDF document text
    • http://gituzi.susie-carter.com/uploads/1/3/1/4/131409090/9168188.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3684/3933/files/aql_sampling_plan_table.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8080/1701/files/subazekemawexavabadumog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5104/9370/files/xapabevujilonujimesil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7378/8321/files/6684284002.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9232/8104/files/43188054996.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8804/4447/files/chaos_knights_40k_codex_vk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8353/9366/files/94062552629.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7437/9164/files/cerro_gordo_sheriff_jail_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0161/8327/files/59597640170.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 8

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

Full JSON: related samples API

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005a33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A33 4944 bytes
SHA-256: ffaca0cea9686dc9962a99d5c5070d8ea5a15c37b6c52f368116e5f3a00382f2
font_01_sfnt_off00006aeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AEB 10440 bytes
SHA-256: a0b6b0ef24cb40bbaf3c73585faccdf924751849b60e7ae344abe225531e0e2c
font_02_sfnt_off000085a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85A1 10344 bytes
SHA-256: cfe6eb345a3374590792d139ea4038b61385f513a62235e8b66f80766ec5e117
font_03_sfnt_off0000a922.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA922 16720 bytes
SHA-256: 0c0c866866dfab579b577a19d82315916b4f4efc43366722b856ecaccd851ed9
font_04_sfnt_off0000bfa5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFA5 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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