Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c62342fea5ea615…

MALICIOUS

PDF

33.5 KB Created: 2020-08-28 04:37:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c08232a26f5f4806f11cce993171070d SHA-1: 18d8cd908aff43d034719f6c6b4a25f6bf5c4fb3 SHA-256: 0c62342fea5ea61530ede0239f7366de6d916b2c990ecdd07a98a4374208b8df
194 Risk Score

Malware Insights

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

This PDF document contains numerous embedded links, many of which point to a redirector service (ttraff.ru) that is flagged as malicious. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=twilight+syndrome+english+patch', suggesting a phishing or scam attempt to trick users into downloading potentially malicious content. The ML classifier also strongly indicated maliciousness.

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=twilight+syndrome+english+patch In PDF document text
    • http://files.dalessandroscouting.com/uploads/1/3/0/7/130775712/manisegimeketij_wotiwupisevab.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/1/0431/4444/6118/files/ten_commandments_bible.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5845/3918/files/lajonaxidivoxaguzilupifof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/4374/1845/files/alaris_pump_8015_service_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0705/7825/files/up_board_result_2020_class_12_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3565/5335/files/hp_j4500_printer_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4489/6925/files/84854236603.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7190/5698/files/12697595971.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0636/9703/files/15579569502.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2156/5078/files/354903068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5727/4270/files/triangle_dor_positionnement.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65496272691.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9430/9019/files/65456798015.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_off0000445e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x445E 5632 bytes
SHA-256: 473f35cde1616076c159a195f98b93652e36d2d136e2dece6eecd4eb1408ce15
font_01_sfnt_off00005759.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5759 9896 bytes
SHA-256: 2e76ea946e4d176d894865a2aed00476d1f434bb7c2c64bd0e1a0d0498953efd

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