Malicious PDF — malware analysis report

Static analysis result for SHA-256 53a7021c706a5704…

MALICIOUS

PDF

38.6 KB Created: 2020-08-28 04:42:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 64c30c56f11e9d7006123098131f1689 SHA-1: 75a8628814d831d82996df932f8807e1aef0ee4f SHA-256: 53a7021c706a57046f12a688260acb0ff018003dcf708559d00d01fb1138ea86
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains, but one critical link redirects to a known malicious domain. The document body, though heavily obfuscated, contains text related to 'Dre beats powerbeats2 wireless' and the malicious redirector URL, suggesting a lure to a phishing or scam page. The presence of a malicious redirector link is the primary indicator of malicious intent.

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=dre+beats+powerbeats2+wireless In PDF document text
    • http://files.hippovalley.org/uploads/1/3/1/1/131163533/6804981.pdfIn PDF document text
    • http://files.betterwiththebible.com/uploads/1/3/0/7/130738758/fixatarake.pdfIn PDF document text
    • http://files.elyscouture.com/uploads/1/3/2/7/132710676/raronoxabuk_sasunux_xewawovigi_vexafezajeku.pdfIn PDF document text
    • http://lafixibo.lifehealthstrength.org/uploads/1/3/1/6/131606289/rumilogokanedu_bekasuk.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/1/0436/9727/5033/files/honing_guide_lie_nielsen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1119/4525/files/78938021120.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1260/1502/files/89383509157.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7927/0549/files/candy_compressor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0963/8553/files/piwotedaxujugimijazi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7810/4728/files/bulagaxokorewimiwimes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1991/0811/files/daguvimepisepedoviruj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7810/7811/files/architecture_design_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8456/2086/files/26109680597.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0360/8214/files/22477879606.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3064/2837/files/karuvonexiti.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 3

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_off000058b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58B3 5176 bytes
SHA-256: 21f11883254a4be117b9fa036eebe0cba53ed00ba17cf784cba01b39ba9b33eb
font_01_sfnt_off00006a6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A6E 10476 bytes
SHA-256: 17f28494d91f13e5761002fa56bc1b20e83c14164d50653fee4ac53536d95d14

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