Malicious PDF — malware analysis report

Static analysis result for SHA-256 8614e83878cea4d4…

MALICIOUS

PDF

43.6 KB Created: 2020-08-12 20:21:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 56bf5618953d387743628631a8f5a686 SHA-1: 8ba48c6ac03cbe975ae68802c7fd8f8b567032d6 SHA-256: 8614e83878cea4d4873c8e5d9c717948345bceb20ec9edd110bc66446145a0cf
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, contains the primary redirector URL. This indicates a phishing attempt disguised as a document download, likely to lead users to malicious content or malware.

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.cc/pify?keyword=arne+naess+libros+pdf In PDF document text
    • http://fakulage.drtonybushati.com/uploads/1/3/1/4/131437044/d642935.pdfIn PDF document text
    • http://fokaroxom.melissayvonnephotography.com/uploads/1/3/1/4/131452883/baluzurejelo.pdfIn PDF document text
    • http://files.ourpatchprojects.com/uploads/1/3/1/3/131398360/598236.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/1/0431/1239/9009/files/3846714873.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0547/7023/files/reduce_file_size_online_without_losing_quality.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6728/4387/files/13946317832.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5891/2662/files/bogivowiwijawerebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0817/8850/files/monememexaba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8027/8426/files/55913706305.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0624/6557/files/26340845421.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/31082235151.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4656/8098/files/rezatekapewonatitudukugi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xekosipavejidowusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6304/1430/files/tanaliwabexuzabasi.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 2

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_off00006c03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C03 5164 bytes
SHA-256: 53d32a06bb28154c752f0eebc19eab17d4a481f1bb9237c0021df96033505f67
font_01_sfnt_off00007d8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D8C 10876 bytes
SHA-256: 71ece7a7199957868c9241b704891d01b820e2c07454185d95b2f79c60b71241

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