Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f59f5dc8fc2be03…

MALICIOUS

PDF

87.0 KB Created: 2020-08-10 08:29:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5320af5b1a54e0e02624ce1dca170fe3 SHA-1: e5474295b0e70eb90ce223cdb041077bfe998fed SHA-256: 6f59f5dc8fc2be03063a205fc31b355d5cbc19d52118f2bd2a4792afe66430f6
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to redirector infrastructure like 'ttraff.ru', which is flagged as malicious. The document body, though heavily obfuscated, contains a URL that is also present in the heuristics, indicating a likely attempt to redirect users to malicious content. The ML classifier strongly supports the malicious verdict.

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=ahmad+shah+abdali+history+in+urdu+pdf In PDF document text
    • http://files.ecofitpt.com.au/uploads/1/3/2/6/132681053/9105361.pdfIn PDF document text
    • http://rojulole.somax-consulting.com/uploads/1/3/1/4/131406390/wutomewikibut-zenigelasuz-fubazibamaw.pdfIn PDF document text
    • http://files.bathbombspetersburg.com/uploads/1/3/1/0/131069886/143379.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/1/0432/6470/4665/files/vefuwafevad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0510/7620/files/modulo_ritenuta_d_acconto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9311/2472/files/al_azkar_an_nawawi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1624/9767/files/vaxebuwopurunoferof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1242/1789/files/relative_zoom_sens.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3332/0872/files/domomemoruw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8976/5276/files/48840458245.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2942/2499/files/72830587986.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3032/1051/files/spelling_bee_word_list_for_grade_5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7935/9900/files/us_work_permit_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9853/0202/files/waves_audio_plugins.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8689/5522/files/busbar_size_calculation_according_to_current.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off0001271e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1271E 23584 bytes
SHA-256: a2f30ec6a19c75c9df162d6362d94180ba40c58573ab41ed99494c67c1225173
font_00_sfnt_off0000e4ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4AC 5512 bytes
SHA-256: 544d006ac806ba28d6c73417fd1882d298db09163614bd94c9a7d5bb6a9d33c5
font_01_sfnt_off0000f73c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF73C 15844 bytes
SHA-256: 85da0e392b5edbf6c003b47050c422b0b8916b2fa8402eb73f353f923055d096

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