Malicious PDF — malware analysis report

Static analysis result for SHA-256 33a812dcfc4a1709…

MALICIOUS

PDF

42.5 KB Created: 2020-08-26 12:31:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 11abbab12a46703cdae8416f79673977 SHA-1: e9f5e764ebe6b00bc7742ca5118d7776a4c2bdd4 SHA-256: 33a812dcfc4a1709b51a2436b25ab1c7c45e371834a80eabcae22e7e9ab05782
294 Risk Score

Malware Insights

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

The PDF file contains multiple heuristics indicating malicious intent, including direct payload links and a link farm designed for SEO manipulation. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a game download. This, combined with the 'SE_PASSWORD_ARCHIVE_LURE' heuristic, suggests the PDF is designed to trick users into downloading a password-protected archive, likely containing malware. The primary malicious URL identified is ttraff.ru.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • PDF link points directly to executable/archive payload critical PDF_DIRECT_PAYLOAD_LINK
    PDF contains a clickable HTTP(S) URI whose path ends in an executable, script, shortcut, disk image, or archive extension. Documents can legitimately link to installers, so this is a high-risk delivery indicator rather than a standalone exploit fingerprint.
  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=gta+san+andreas+extreme+edition+2011+www.pcgamespunch.com In PDF document text
    • http://files.theartsparkle.com/uploads/1/3/1/6/131606118/zubafiteru-xifogi-takupug-vawufuvabux.pdfIn PDF document text
    • http://sagew.torgbrewery.com/uploads/1/3/1/4/131437792/gozuwobutitekigo.pdfIn PDF document text
    • http://fikexil.imadsz.org/uploads/1/3/0/8/130813612/samad-vezajutib-luzilefixamag.pdfIn PDF document text
    • http://nelur.mccoymultimediallc.com/uploads/1/3/1/3/131398504/6f944bb.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/1/0432/8656/0936/files/raribogofelufipi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8205/5829/files/wefif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1822/1728/files/munogozubu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5548/7905/files/basic_and_bedside_electrocardiography_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7854/9665/files/justice_league_dark_imdb_parents_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/6504/1047/files/larujomomufodit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zilifevuzumojewod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7301/9797/files/magellan_rx_medicaid_trend_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4251/2791/files/zamasalufapovobajipatuzox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3129/7185/files/92241733789.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3550/8381/files/xutobitemiwilixuzu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1024/3229/files/grade_5_math_variables_and_expressions_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3733/5464/files/xefasafovositomarunuzag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1958/2110/files/50740359333.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_off000064d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64D7 6004 bytes
SHA-256: 3a6a1878767bcadc2e11921ab8c4f1d8a8469aebf7dc99b1baed3f11753ab446
font_01_sfnt_off00007943.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7943 10220 bytes
SHA-256: fc8e5c9d91a1771f6910086a6ca79599fb5f28b2ca6255d858291bf325a07796

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