Malicious PDF — malware analysis report

Static analysis result for SHA-256 e918fd95d76b5c55…

MALICIOUS

PDF

50.0 KB Created: 2020-08-17 11:12:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 916cdfd88cc5257dc975af306655fe43 SHA-1: d2a6e2b29729d9bac51c3b13694cd925515cd607 SHA-256: e918fd95d76b5c550443549ccb430bc23212c1d1d717180d52008c3e603df714
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a lure related to a 'Hazard perception test' and includes a mass of external links, many hosted on Shopify, suggesting a link farm or redirection strategy. One critical heuristic indicates the PDF links to known malicious redirector infrastructure via the URL https://ttraff.ru/pify?keyword=hazard+perception+test+2017+official+dvsa+guide. This suggests the document's primary purpose is to redirect users to malicious sites, likely for phishing or malware distribution, fitting an advance-fee scam profile.

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=hazard+perception+test+2017+official+dvsa+guide In PDF document text
    • http://files.sisterhoodtravels.com/uploads/1/3/1/3/131378942/kinalezugotumo.pdfIn PDF document text
    • http://files.gomavswbb.com/uploads/1/3/1/4/131483955/zojuze-jotukabaga-tulamixosube-lasefine.pdfIn PDF document text
    • http://files.authoravadanielle.com/uploads/1/3/1/4/131437385/5071130.pdfIn PDF document text
    • http://files.2whatknots.com/uploads/1/3/0/7/130775977/sebudarivag.pdfIn PDF document text
    • http://files.rahoonfamilycentre.com/uploads/1/3/1/8/131871621/gifevow.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/1/0434/0652/4566/files/26993453595.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8837/9032/files/11747548976.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2692/2146/files/polezidetalewozex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3123/2666/files/mudoka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1975/4907/files/nukatiwexoxikorukimuwetod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3164/8661/files/grief_and_grieving_process.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8844/5604/files/converter_to_word_document_which_is_editable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8022/0826/files/online_video_converter_to_ppt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1463/6198/files/dti_business_name_registration_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8037/5704/files/bach_air_on_g_string_piano_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2249/5389/files/google_android_developer_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4197/2646/files/dizezejesumeti.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67C6 6812 bytes
SHA-256: a34b840e6e726380c84f4f3a148208c6ea30fbf11d32fd72c0113864af826204
font_01_sfnt_off000078fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78FB 5800 bytes
SHA-256: f4bb3bc591d1b407941ed8d7c9dc0dbc6f87061e895d5a1175f3b97aa6bd1261
font_02_sfnt_off00008cda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CDA 1648 bytes
SHA-256: 8170fc3fc409a1c0877eb8fc97c1aa6793fdaed6054e537339186737bbbebbfb
font_03_sfnt_off0000951d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x951D 10660 bytes
SHA-256: 8a17c6230d335955e1124d0f16c95c4fbaca2cf27d7f1304bafc68304507b284

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