Malicious PDF — malware analysis report

Static analysis result for SHA-256 142a931c2025b1bc…

MALICIOUS

PDF

41.9 KB Created: 2020-08-27 14:28:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 12561abaa9a9736a9d5d6f11737e48d2 SHA-1: 334c7a7637b5d8004ecf034d4f7972a502765e40 SHA-256: 142a931c2025b1bcef2b0c4de29ced86c3521d2073d2e87b3a0a7271a4566a04
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a known malicious domain, disguised as a service manual. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM indicate the presence of malicious redirector infrastructure and a link farm designed to attract clicks. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the embedded links are the primary vector for malicious activity.

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=2005+jeep+grand+cherokee+factory+service+manual In PDF document text
    • http://ledomojun.powersourcedubai.com/uploads/1/3/0/8/130813714/lifelonug-palobatumonarad-narerogat.pdfIn PDF document text
    • http://gesugofud.jeffbeckpersonaltraining.com/uploads/1/3/1/8/131857120/zimabigu.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/1/0431/7508/4193/files/38066934625.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6916/9054/files/coriolis_effect_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/7465/8980/files/falciform_ligament_sign_radiology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2269/4046/files/94820385835.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3489/3718/files/possessivartikel_dativ.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9639/1323/files/99715804077.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4496/9367/files/kolkata_map_file_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2670/2758/files/bach_little_prelude_in_c_major.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9814/4932/files/kuzilabitumisizerelewi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1077/6473/files/cefr_framework.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0515/5240/files/android_emulator_visual_studio_2015_windows_7.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/8564/7272/files/gitamiki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6063/3504/files/the_rise_of_nationalism_in_europe_notes_download.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 3

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_off000061f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61F9 6172 bytes
SHA-256: 385d971a9b03871733b02d020eea957275de296400870d522f7f559fcc37c4d5
font_01_sfnt_off000076dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76DC 10420 bytes
SHA-256: 005e6d060eafa22f2f5f8e0db451434966412ede749780fb628a81b6e2d220c8

Open this report in the interactive analyzer, or submit your own file for analysis.