Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b745a9c935a3665…

MALICIOUS

PDF

42.5 KB Created: 2020-08-23 12:48:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 789c5c1ce7dde041799e9ce3387b2642 SHA-1: a7104523e5236802183471c6bca005d56c7fc0dd SHA-256: 5b745a9c935a3665d789ce1432266a22437c24080d6cd1078d2e661ac030f7bd
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to SEO-optimized PDF farms, with a critical heuristic identifying a malicious redirector. The document body, though partially obfuscated, includes text related to an 'international organization for migration report 2017' and the malicious URL, suggesting a phishing lure. The primary malicious URL is a redirector designed to lead users to potentially harmful 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.com/pify?keyword=international+organization+for+migration+report+2017 In PDF document text
    • http://files.savouryspoon.net/uploads/1/3/2/6/132682585/dedinipabud_xogamujusab.pdfIn PDF document text
    • http://files.lockmangenetics.com/uploads/1/3/0/7/130775383/nizejab.pdfIn PDF document text
    • http://rubilo.agbio-inc.com/uploads/1/3/2/6/132683130/316ed0b4faced.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/1/0437/8850/1143/files/guia_completa_calistenia_street_workout.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5249/8070/files/bajogubalij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1841/2451/files/23141176146.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5350/4917/files/porivo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/9260/9943/files/blender_2._79_shortcuts_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8005/5958/files/isomeria_dos_alcanos_alcenos_e_alcinos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5197/3799/files/division_long_method_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5200/6552/files/1531435691.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2962/4992/files/bluestacks_para_android_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3864/4123/files/chrome_linux_ubuntu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2149/2643/files/taxation_and_land_reform_in_the_philippines.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_off00006772.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6772 5436 bytes
SHA-256: b12ceafc2f8f8704aaf5f2476ab720842bf9c81364b77d40315dc29fe294732c
font_01_sfnt_off000079f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79F1 10260 bytes
SHA-256: 312ee8a7da4179f9a06d1deb88ad16e26e81694a27d0c6e2207e3becdad44e66

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