Malicious PDF — malware analysis report

Static analysis result for SHA-256 f09c6e1c0f7d8fac…

MALICIOUS

PDF

52.0 KB Created: 2020-08-18 22:12:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 875a8db7570163a98f275af5cec354c7 SHA-1: 9b8c57827b76e8583e1a457501d4d4305b820bdf SHA-256: f09c6e1c0f7d8fac1c4708d1dcf773b82f9594bf1d3dad2e2cafca4a9107dad9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links, with one specifically pointing to a known malicious redirector. This suggests the document is designed to lure users to malicious sites. The heuristic firings indicate a PDF link farm and a malicious redirector, supporting the conclusion that the primary attack pattern is link-based redirection. No scripts were extracted from this sample.

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=reforma+rural+integral+acuerdo+de+paz+resumen In PDF document text
    • http://files.nextlevelelite.org/uploads/1/3/0/7/130740138/7126810.pdfIn PDF document text
    • http://files.suzannepetrizzi.com/uploads/1/3/0/8/130813645/safez.pdfIn PDF document text
    • http://files.nicollranch.com/uploads/1/3/2/6/132682882/be4f16bf3cbea.pdfIn PDF document text
    • http://vadom.scribeathisfeet.com/uploads/1/3/0/8/130874493/7057789.pdfIn PDF document text
    • http://files.sand.penguinprof.com/uploads/1/3/0/8/130873918/55d79df2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2846/2240/files/5542669493.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6559/8364/files/ashokan_farewell_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/5636/0600/files/61976778595.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4988/6620/files/nugamejofenukexufozajeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4541/9165/files/human_body_anatomy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/metabolic_syndrome_diagnostic_criteria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4488/6945/files/o_que_foi_a_cabanagem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1754/3588/files/laparoscopic_anatomy_of_inguinal_hernia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0944/0933/files/winnie_the_pooh_ebook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6372/1637/files/96086775327.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0756/6239/files/daseruxotetigokuw.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 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007b6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B6C 5416 bytes
SHA-256: b50f2ac66934a87f5cc005cb5f9940c4e1de6820010ee21260ee41628d96a3c7
font_01_sfnt_off00008dc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DC9 11520 bytes
SHA-256: 57c1a1efe77b8787baab74417af7c9afc22643a903d96c38e6370979ee04e160
font_02_sfnt_off0000b321.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB321 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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