Malicious PDF — malware analysis report

Static analysis result for SHA-256 2aa30b1425a324ee…

MALICIOUS

PDF

43.1 KB Created: 2020-08-22 10:13:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 80fd63f3e14469d5db6f3820d3783242 SHA-1: 465e6cb28face76f710703ce35189af51c6edcb5 SHA-256: 2aa30b1425a324ee1d3d5884fdd434fc0704e2b2a76cad58ebe6d6bb5a054a6b
194 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, a common tactic for SEO poisoning or link farming. One of these links, 'https://ttraff.ru/pify?keyword=cooler+master+hyper+212+plus+manual', is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL, suggesting it's the primary lure. The file's purpose appears to be directing users to malicious infrastructure under the guise of providing a manual.

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=cooler+master+hyper+212+plus+manual In PDF document text
    • http://files.sauconvalleyconservancy.org/uploads/1/3/1/3/131383426/robojik-kusanedale-bimonetasig.pdfIn PDF document text
    • http://fizavi.trashministry.com/uploads/1/3/0/7/130776031/524211.pdfIn PDF document text
    • http://butotori.embcmanning.org/uploads/1/3/0/8/130873830/todagefelesu-nulasaguxox.pdfIn PDF document text
    • http://vapigupi.saintgregorysileby.org/uploads/1/3/1/3/131380934/kotebogisarisaf-folijoma-rojugizaj.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/1/0435/9002/5379/files/sugegeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0593/3730/files/exercises_for_adolescent_idiopathic_scoliosis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4571/6129/files/50780033806.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6588/2277/files/animator_s_survival_kit_by_richard_williams.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1802/6142/files/natidomenumisinurovitiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6930/8061/files/vumunudowaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8191/5804/files/61447543932.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2980/6759/files/bodies_by_rachel_6_week_challenge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8452/9310/files/zotafim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1335/6189/files/pokemon_reborn_debug_mode_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/3417/5656/files/bing_or_google_yahoo_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5582/3525/files/fixujaxegemetudote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71340125447.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3430/1848/files/3602493995.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2825/7685/files/wofubufenukobojikaka.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_off00005b57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B57 5248 bytes
SHA-256: 0c4228f769a44a80ac18acdb8389ebfaecf6a1d6e8ea0fdc89fada7027cfddf0
font_01_sfnt_off00006d14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D14 15684 bytes
SHA-256: b06d2f0531914def97c065afcf44d241f5fc269089757a6b7fd90058c7abc26c