Malicious PDF — malware analysis report

Static analysis result for SHA-256 34a4c0a290d9f9a4…

MALICIOUS

PDF

37.4 KB Created: 2020-08-20 03:19:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f081dd44807d2e4d71f4c154379202c6 SHA-1: 04abd0921798de8c2b4196cb6b3b269f14349148 SHA-256: 34a4c0a290d9f9a4e1ac9281fe74dd6cc88a22f8d0f0776f1f980ed2367a9d0f
202 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one link pointing to a known malicious redirector. The document body also contains a call-to-action phrase, suggesting a lure to click the embedded malicious link. The primary malicious IOC is the redirector URL, which likely leads to further malicious content or exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=abu+rayhan+gojol In PDF document text
    • http://bifujopu.retirementtimeline.com/uploads/1/3/2/8/132814930/3212063.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/1/0448/0316/2263/files/kamovorudarakoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6897/1415/files/latest_movies_free_mp4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4447/0945/files/21942578081.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5663/5804/files/fitawedabajuvuzokaru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4651/0497/files/titesoxebibosawofogavoti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7595/9973/files/biodata_format_for_marriage_in_word_format_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8678/2369/files/dubusogiwali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/0821/6487/files/gisaludejajetutazukeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4011/1782/files/necronomicon_the_anunnaki_bible_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8244/1113/files/fundamentals_of_data_communication_and_networking.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8713/4882/files/gikekosujabinuxizas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7247/1718/files/murejuwer.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_off00004b97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B97 5076 bytes
SHA-256: 860e589a613d4ec241fd504711052e29fb4a001715748afde0ee61369bf1dffb
font_01_sfnt_off00005cd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CD9 2504 bytes
SHA-256: bda46a189ab5ca82e9a2dfbdd44eacc5857f8d08cd207523bdafa5b6a969d3e3
font_02_sfnt_off000067bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67BB 9704 bytes
SHA-256: a915ce6d39565616ac64ed19bf1bdc97e995f2719fa2b917b2cb4f9aafa37fd4

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