Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f4269f64797c438…

MALICIOUS

PDF

42.0 KB Created: 2020-08-06 21:19:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: caf24d4d1f19c1671023f9a672d92ce6 SHA-1: 0926064a902c2737183c70103f54e47e5a15c82f SHA-256: 2f4269f64797c438e7806116445ebdecdcc7a2c0e779f15bd01305816bf1b168
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector at ttraff.ru. The document body, though heavily obfuscated, contains the URL and a keyword related to academic development, suggesting a lure. The ML classifier also strongly indicated maliciousness. The primary attack vector appears to be directing users to malicious infrastructure via embedded links.

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.ru/pify?keyword=physical+and+cognitive+development+in+adolescence+pdf In PDF document text
    • http://files.fantasysumo.us/uploads/1/3/1/6/131637308/fogevapojozigot-tusid-puvelig-rijewovoza.pdfIn PDF document text
    • http://files.fishingboatsontario.com/uploads/1/3/0/7/130775245/vojijolidab.pdfIn PDF document text
    • http://files.horaianhouse.com/uploads/1/3/0/7/130776714/nidofafal-nividob-pupotafofepu-wabumonu.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/1/0428/3065/9751/files/gopenetepemijevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1751/8751/files/nojotukuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7274/8710/files/bepelupev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2417/7576/files/kugetelorizusig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8249/0791/files/71069254223.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1148/0472/files/formato_certificado_medico_escolar_para_imprimir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7240/5157/files/17829580684.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9622/0572/files/bhartiya_kala_ka_itihas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8443/9971/files/japji_sahib_english_translation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7328/7830/files/lopuruto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0708/0608/files/dig_dug_unblocked.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1829/7245/files/mazeke.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
🗂 Part of campaign: fishingboatsontario.com 3 samples

Related samples 4

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_off0000646d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x646D 5636 bytes
SHA-256: 41bf14305413b24c2e59ae96e2a5e1504bb7130ec0ddd13c7f7b1d544e5d968b
font_01_sfnt_off00007790.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7790 10388 bytes
SHA-256: 7ca77aa2d6650d44193897cd934c8dc8dbcfe8200f27329fd2922b54ab01a122

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