Malicious PDF — malware analysis report

Static analysis result for SHA-256 f617c3cd708adbe2…

MALICIOUS

PDF

42.3 KB Created: 2020-08-08 05:10:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0a8b63134e1d489564d3549048781cef SHA-1: 11cd8d71f826005bba78048cf94523eab837a56e SHA-256: f617c3cd708adbe224e6414976681b27da7d3f5101d908e08f3e1e6af79885ab
194 Risk Score

Malware Insights

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

The PDF contains embedded links, one of which points to a known malicious redirector. The document body, though heavily obfuscated, contains text related to a 'withdrawal form' and the malicious URL. This suggests a phishing attempt to redirect users to a malicious site.

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.com/pify?keyword=pf+withdrawal+form+10c+pdf In PDF document text
    • http://files.bobwaltervoiceworks.com/uploads/1/3/0/9/130969775/255577995766.pdfIn PDF document text
    • http://files.support.famhealth.com/uploads/1/3/1/4/131437740/3357936.pdfIn PDF document text
    • http://files.perennialposy.com/uploads/1/3/2/6/132695445/8348434.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/1/0446/7120/5529/files/data_acquisition_system_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8866/7039/files/zokofonutusexog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8901/6472/files/dabiparesavozi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5657/8216/files/lista_de_verduras_en_ingles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2482/6014/files/44151674202.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7432/9499/files/tf2_banned_weapons.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0333/0208/files/94784833643.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0695/0561/files/mathematical_symbols_and_definitions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7719/8229/files/25345084376.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/1/0433/3253/4440/files/61118479034.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0944/0917/files/65962517629.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_off00006713.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6713 5504 bytes
SHA-256: 2331d1cabfe9a0b51f97a79e0a35f62ab9653b544dda4c11670d268c3705185f
font_01_sfnt_off000079b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79B7 10228 bytes
SHA-256: 9cf1fec9d8dd7a9a7e14b219fdff463de552601b1250c703d5b07cf23f0e4cdc

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