Malicious PDF — malware analysis report

Static analysis result for SHA-256 23ca98bc157cc214…

MALICIOUS

PDF

44.7 KB Created: 2020-08-18 13:49:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 413e09e3287b7f43fea3016df1386819 SHA-1: 001d1e0182b351694ee653322e79d3744d26b432 SHA-256: 23ca98bc157cc214ef99db43f35b1e1a105cb62eb74010d41997a90f494f7913
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link farm and a direct link to a redirector URL, indicating a social engineering lure. The document body, though heavily obfuscated, contains text related to 'Family tv series episode guide' and the malicious URL. The primary malicious URL is 'https://ttraff.cc/pify?keyword=family+tv+series+episode+guide', which is likely used to redirect users to further malicious content.

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=family+tv+series+episode+guide In PDF document text
    • http://files.bfpartyrentals.com/uploads/1/3/1/6/131607075/jabenep-xapanasexanijuk.pdfIn PDF document text
    • http://files.hunterdongardenguild.org/uploads/1/3/1/3/131380305/fapelawilodu_begixugexef_dafixofa.pdfIn PDF document text
    • http://files.thecoreschool.org/uploads/1/3/0/7/130738657/2438740.pdfIn PDF document text
    • http://files.baptistegerbier.com/uploads/1/3/1/1/131163859/rojuserota-fitemujan-govapulogopu.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/1/0433/9472/8103/files/los_grandes_economistas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3096/0549/files/83295521300.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6710/4668/files/zodinukafo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6656/4520/files/22115891393.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8667/4088/files/credit_note_format_in.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xoperesotojazi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6680/9765/files/xowinasijamogewisuvok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6145/8582/files/31676297376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1610/0776/files/72496710487.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_off00007172.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7172 5396 bytes
SHA-256: 443a312d1793a0cfd1e8a27942c47777bf97746bce94ae8dd572b1108be334aa
font_01_sfnt_off000083c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83C3 9980 bytes
SHA-256: fe2f8048a506cfbd23be6f8a0e2a0b798d0d97afe0f65dfde51d60a4201d2e05

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