Malicious PDF — malware analysis report

Static analysis result for SHA-256 123d760f51d9e33b…

MALICIOUS

PDF

44.9 KB Created: 2020-08-08 04:27:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e8afc5f5a7bf3861a79bd553a0647e24 SHA-1: 21c2a3f7e9a880a21c8dc6505cc4ff3326758479 SHA-256: 123d760f51d9e33beda8cd7adb9670de2bdf24376a6ee60e7a6b3994d2e01808
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service, suggesting a link farm or phishing campaign. The document body itself is heavily obfuscated but contains URLs that are likely part of a lure to trick users into downloading further malicious content. The presence of embedded URLs and the ML classifier's high confidence score indicate 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=embed+animated+gif+in+pdf+indesign In PDF document text
    • http://files.peaceofmindproductsbynatalie.com/uploads/1/3/1/4/131407492/zawalotabu_lifexikit_fakofububej_fevugokunuvejom.pdfIn PDF document text
    • http://files.friendsofcharliesplace.org/uploads/1/3/1/6/131606407/e4b89.pdfIn PDF document text
    • http://files.theuglybowl.com/uploads/1/3/1/1/131164076/fumojosud.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/1/0429/0982/7231/files/doxivixalu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0980/8280/files/lizido.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3151/0690/files/5410651040.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/8227/9062/files/colossenses_hernandes_dias_lopes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0316/2263/files/mahalaxmi_calendar_april_2020_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3033/8966/files/jagolukekibovukena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9835/6392/files/dipovujubanozakutubitub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0004/4454/files/mastering_digital_marketing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2836/3939/files/38325636138.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3276/3801/files/10304677261.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0102/7493/files/wiguro.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 4

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_off00007252.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7252 5332 bytes
SHA-256: bdbacfada33ef71f093ceae328b5f5072d1afc6946e075efa3993ddc4b8c866a
font_01_sfnt_off00008465.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8465 10224 bytes
SHA-256: 78a415eba17f017c617fcb247df244501299f5c466c9f9e511a74fff2791e62e

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