Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e4f437712b5e231…

MALICIOUS

PDF

69.2 KB Created: 2020-08-03 06:16:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3ced335b6e0852f56c0a7b16d8007c0c SHA-1: c06567261137088f3ffb39662d79b0a026a3fc27 SHA-256: 6e4f437712b5e23166e853c56641c39a7496f3f689110d98e1b09207922042dd
242 Risk Score

Malware Insights

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

This PDF document contains numerous links, many of which point to redirectors and SEO link farms designed to lure users into downloading further malicious content. The primary lure appears to be related to '7 days to die mods alpha 17', directing users to the malicious URL https://ttraff.ru/pify?keyword=7+days+to+die+mods+alpha+17. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is part of a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=7+days+to+die+mods+alpha+17 In PDF document text
    • http://rogop.ambervalleylabourgroup.org.uk/uploads/1/3/1/6/131607095/1934062.pdfIn PDF document text
    • http://files.wellnessfeast.com/uploads/1/3/0/8/130874350/texowu.pdfIn PDF document text
    • http://files.thenottinghamfour.com/uploads/1/3/1/4/131437307/9017212.pdfIn PDF document text
    • http://files.missionviejoclassic.com/uploads/1/3/1/4/131453541/d43cd1da.pdfIn PDF document text
    • http://files.palmbeachdayacademycoralproject.com/uploads/1/3/1/1/131164009/7865369.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/1/0432/6971/8182/files/71368972136.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2526/7877/files/missile_war_server.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5040/1945/files/nokanexezewibulu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2009/8472/files/lafopegowumodu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0310/0836/files/lutilanibexo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6919/1832/files/tokozewopa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8334/1728/files/43643669173.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nagexonulelaxefirulilona.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7468/0987/files/67698857981.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5410/3713/files/xitule.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000adc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xADC6 5240 bytes
SHA-256: 288cef365d9dfc47e46fa6c6baa531df05399ab6939d46bf8edd27f0089f081e
font_01_sfnt_off0000bf7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF7F 3232 bytes
SHA-256: e2f3dd50e87cc64f7716bb9974e6f9727065193202cee28103165e0cf82097a0
font_02_sfnt_off0000ccb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCB8 10816 bytes
SHA-256: ba8bb11ba9bd9eb92812cca634bfda2bfb1f401718b98ee2fdc30f0e203d866b
font_03_sfnt_off0000f1aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1AA 16324 bytes
SHA-256: 0496de3eedce77c5ddf4342598bf11e73a7ab7611c7043b71dd2835c39113ed5

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