Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d04ee29feee0f56…

MALICIOUS

PDF

52.2 KB Created: 2020-07-29 18:39:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 351e950e3f758b85a93b119a1f18fe62 SHA-1: e4cbaf69d2500f932c1611407c679fd898ef3a7a SHA-256: 6d04ee29feee0f56f7a9f32688f9797c1567c722a67d97557d8e31fff64b24a6
202 Risk Score

Malware Insights

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

The PDF contains multiple links to redirector infrastructure, specifically identified as a malicious redirector and an SEO link farm. The ML classifier strongly indicates maliciousness. The document body, though heavily obfuscated, suggests a lure related to 'persuasive letter writing template pdf', aligning with phishing or scam attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.cc/pify?keyword=persuasive+letter+writing+template+pdf In PDF document text
    • http://files.chanble.com/uploads/1/3/1/8/131856409/sujaj.pdfIn PDF document text
    • http://files.kathrynjfogleman.com/uploads/1/3/1/8/131856188/laxiwufovob.pdfIn PDF document text
    • http://files.spencersnygg.com/uploads/1/3/1/1/131164310/rikewituxofob-basakukom-virobumavewi-pokajite.pdfIn PDF document text
    • http://files.cambria-bailey.com/uploads/1/3/1/4/131437680/3920212.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/1/0437/4380/5594/files/gejalulamob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2310/4160/files/ruwisoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/21785592396.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5638/1597/files/savituxim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rijakilijupefiwopoxafeza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1344/7581/files/33929127796.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5012/3943/files/98836511226.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2821/0073/files/46721583967.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9367/1588/files/niduripigizebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4933/7507/files/pomil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4513/5260/files/19444826539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0183/9775/files/33402929818.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4190/7110/files/jumimes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4513/5260/files/14308256370.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 7

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_off00008ed4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8ED4 5284 bytes
SHA-256: b94645ef5a591e3913ac774b739fe32acd83dd66bf24b25d7292ab78dad4b999
font_01_sfnt_off0000a0c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA0C0 10272 bytes
SHA-256: 16419b3668557be59102209c95e13e384375014e4ecd59eb781077f1ce861b6d

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