Malicious PDF — malware analysis report

Static analysis result for SHA-256 84eca0afbd2a5107…

MALICIOUS

PDF

46.0 KB Created: 2020-07-30 15:58:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2c00a77b40bdb2b42726e74446df6d88 SHA-1: 6274fc2714c80b583f5c3fbb922157f6d0666920 SHA-256: 84eca0afbd2a51070ecbc7c74d1e4174d19fe8cee68d16fa5eca712915bcd18a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple links to a redirector service, masquerading as a download converter, which is a common lure for phishing or malware distribution. The presence of a large number of external links suggests an attempt to manipulate search engine results for increased visibility of malicious content. While no scripts were directly extracted, the PDF structure and embedded links strongly indicate a malicious intent to redirect users to harmful sites.

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=download+able2extract+pdf+converter In PDF document text
    • http://files.destinwestvacation.com/uploads/1/3/0/7/130738841/fuzopi_refapofuxa.pdfIn PDF document text
    • http://files.sgsquishies.com/uploads/1/3/1/4/131455283/kefedeworimo-laxevot-merovaxumud.pdfIn PDF document text
    • http://files.moombaparkps.vic.edu.au/uploads/1/3/0/7/130738792/5c3d80c06ac.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/1/0433/5930/5877/files/digavozowoxoranuladi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4160/2208/files/rubelipilu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sivezijikok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1052/2268/files/buterekolesi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8307/9584/files/16549906307.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0789/1877/files/tolofoxovun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4727/2098/files/16298849623.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1207/8243/files/fukuwolefubeguko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5543/0302/files/8422568179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nubizasijimowedemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8096/5534/files/pugagodegopikuzadajiwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0099/5741/files/87521256862.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8757/6740/files/tetururorepurazazila.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000075bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75BB 5200 bytes
SHA-256: d0d9ac84d44c96daa8b22e256f0e058c5a715affa2a7f1e58ced737001015de0
font_01_sfnt_off00008795.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8795 10116 bytes
SHA-256: 720adc636a12e9bffccd17311443edcf204fa72154becf5c815c151d48b3c17e

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