Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c5b688360f758df…

MALICIOUS

PDF

44.4 KB Created: 2020-08-14 02:56:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 92b77044b790043a2d50c2863de27473 SHA-1: 486aea3e1c62090e812475f328088a37b0b5488b SHA-256: 4c5b688360f758df8c714b73f998628ee7fccf740bb6fa1b382ade8044d0b0c1
162 Risk Score

Malware Insights

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

The PDF file contains numerous links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=facebook++for+nokia+e63+symbian', which is flagged as malicious. This suggests a social engineering lure to drive traffic to malicious infrastructure.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=facebook++for+nokia+e63+symbian In PDF document text
    • http://files.kcrollerwarriors.com/uploads/1/3/0/7/130775350/valatilitu-regazod-dipotijoximo-kudotutipega.pdfIn PDF document text
    • http://files.hernanbrizuelatango.com/uploads/1/3/2/7/132740743/8798325.pdfIn PDF document text
    • http://sejux.coastalretreatsdevon.com/uploads/1/3/0/7/130775934/aa66f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8311/1323/files/kekepuwojaduledude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/4432/8856/files/64435797662.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5742/2240/files/notepujowapowezuvusapiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6588/4323/files/xixetumiwikezokoxum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0661/3912/files/67061747347.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3502/5830/files/cetoconazol_bula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3179/6632/files/72513381819.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6939/0500/files/34199370064.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4484/8295/files/tetosibogekixakone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2208/8354/files/andhra_pradesh_district_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8849/5270/files/buwulutesirinubixojoba.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 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006137.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6137 5284 bytes
SHA-256: 7418802616721bf9ce03250e870d98a7330e99bb4dc1f1ec1d889c670d5caffb
font_01_sfnt_off00007312.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7312 10308 bytes
SHA-256: 0e485e898d5768233cf304a981bec838bf5e323259bce4380b5f8f58976b2186
font_02_sfnt_off00009654.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9654 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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