Malicious PDF — malware analysis report

Static analysis result for SHA-256 0306881e9923fa6d…

MALICIOUS

PDF

46.4 KB Created: 2020-08-20 13:07:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1e3e1052dfd13eebb42c92591bab97f4 SHA-1: ac3c56c348d06c5023312ac01931b67acc2f635b SHA-256: 0306881e9923fa6de8d9cc1802dedffa583655057e9d76ad71d6ef0a781f3ea3
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The document body and heuristics suggest a lure for a fake application download, likely a phishing or malware distribution attempt. The presence of multiple Shopify links, while some are benign, is part of a larger link farm strategy to obscure the malicious redirector.

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=yowhatsapp+versi+7.+10 In PDF document text
    • http://molavisix.arlingtonroofingco.com/uploads/1/3/1/8/131871727/jupusirozufigifijuru.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/1/0433/0687/7080/files/faramerujinusopuko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7954/8580/files/suzuwofopifezipapux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5371/7406/files/xusawatoxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2014/7093/files/kalikasan_ng_akademikong_pagsulat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7098/8188/files/ganazasoxuxafu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7659/7413/files/sofidaboligabefuveto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kemulubu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9139/8561/files/python_move_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3845/7504/files/36445956360.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8852/8035/files/lurudunop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7631/2471/files/xerusezatexupixevenulomin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6769/4487/files/51635906279.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9845/5705/files/british_english_vs_american_english_words_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6658/8325/files/47470370860.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 1

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_off00007866.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7866 5292 bytes
SHA-256: e0a1318e29f83440216ed2a13d5d5d1a98b42c10a73755f0f238d470cc196ec0
font_01_sfnt_off00008a8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A8F 10052 bytes
SHA-256: 253fda74336037b7507972bd822eb3260c407dd136d2bbba9efec881cf59111c

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