Malicious PDF — malware analysis report

Static analysis result for SHA-256 084e54b0751f1388…

MALICIOUS

PDF

36.9 KB Created: 2020-08-26 00:33:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 380884eb6456c0b82e7c4acd8cb5d73a SHA-1: 9fea50b779c92dae1739fcdfb6bda734740f0b70 SHA-256: 084e54b0751f1388d730315eb33324ed21c406392ad518e82f8934ba65e7cc89
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to a redirector service (ttraff.ru) which is known for malicious activity. The document body, though obfuscated, contains the same redirector URL and several benign Shopify URLs, suggesting a lure for free downloads. The ML classifier also strongly indicated maliciousness. The primary attack pattern involves using a link farm and redirector to obscure the true destination of the download, likely leading to malware or phishing content.

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=david+wilkerson+the+vision+pdf+free+download In PDF document text
    • http://kobalobew.sccliteracyproject.org/uploads/1/3/0/9/130969723/banisekuvezevo_lojodoj.pdfIn PDF document text
    • http://files.backtobal.com/uploads/1/3/1/6/131606261/zazavunexo_wezuxukadunip.pdfIn PDF document text
    • http://zitov.lingg.us/uploads/1/3/2/6/132681579/8c899d9c73af.pdfIn PDF document text
    • http://sosose.valiantfew.org/uploads/1/3/1/4/131437502/wapijevaxo-posaza.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/1/0433/9970/8821/files/13577027951.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7703/4399/files/69349625706.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/voriwatovetizejewadodo.pdfIn PDF document text
    • http://wudik.shojitabuchigiftshop.square.site/uploads/1/3/0/7/130739017/9197569.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6372/0613/files/sepabexezereguselij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/5346/2183/files/bookman_old_style_italic_font_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4875/4600/files/laudate_dominum_mozart_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4763/2548/files/dokebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0398/5570/files/fojafidikegip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6529/4491/files/pixilonamemamex.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 6

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_off00004fc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FC6 5344 bytes
SHA-256: 8373c0dadeddf18aabc967e37b0f4176fded40f5f9450311c04d8bcfde713b56
font_01_sfnt_off000061ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61FF 10724 bytes
SHA-256: 5eeffd68dc89699bfbf6c3b64af89898cede7521d896d3d406f2390128d8cb5d

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