Malicious PDF — malware analysis report

Static analysis result for SHA-256 0434a6abace84a9a…

MALICIOUS

PDF

44.4 KB Created: 2020-08-07 15:20:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 83ade747f491ddf87e382c1441d71cd1 SHA-1: 2bf2f68c1d4f7dd2110ed663a99bd26065d26e2a SHA-256: 0434a6abace84a9ade0203d4a13cdf225f67506699c173976ffcff3b99047642
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, disguised with a keyword related to translation. This indicates a phishing or scam attempt, likely using the PDF as a lure to drive traffic to malicious infrastructure. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm used for SEO manipulation or to obscure the true malicious destination.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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.com/pify?keyword=translate+japanese+to+english+pdf+online
    • http://files.atyourfingertipsorganizing.com/uploads/1/3/0/9/130969204/tajorivezolokokekodi.pdf
    • http://files.teaaresea.com/uploads/1/3/0/9/130969357/2139032.pdf
    • http://files.stirling-lhs.org/uploads/1/3/0/7/130739404/rekesimonub_fasavidemowu.pdf
    • http://files.5starcustomlures.com/uploads/1/3/0/7/130739833/2592939.pdf
    • http://kowejuse.alexandracarlson.org/uploads/1/3/1/4/131437246/tasoziwakapiwonu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0434/7792/6040/files/administracion_turistica_y_hotelera.pdf
    • https://cdn.shopify.com/s/files/1/0432/1011/3186/files/20031563253.pdf
    • https://cdn.shopify.com/s/files/1/0432/0336/2975/files/27346610053.pdf
    • https://cdn.shopify.com/s/files/1/0433/0255/1716/files/3845861077.pdf
    • https://cdn.shopify.com/s/files/1/0431/8547/1656/files/vamiduwomupiroke.pdf
    • https://cdn.shopify.com/s/files/1/0429/9636/7511/files/15293456752.pdf
    • https://cdn.shopify.com/s/files/1/0429/9590/8761/files/juwutunisopuwoto.pdf
    • https://cdn.shopify.com/s/files/1/0428/1620/9059/files/39378693163.pdf
    • https://cdn.shopify.com/s/files/1/0431/8933/8276/files/lapovutot.pdf
    • https://cdn.shopify.com/s/files/1/0432/4609/2443/files/lutadikanegivowoka.pdf
    • https://cdn.shopify.com/s/files/1/0439/9231/8110/files/saguwubinu.pdf
    • https://cdn.shopify.com/s/files/1/0429/2955/3575/files/nozedosolowusejukutaso.pdf
    • https://cdn.shopify.com/s/files/1/0435/8320/9631/files/gejavukilutexodutijobopo.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000701c.bin
c4163a28e09acd100d424086c081c8b62c05da423385e917461dad2ea704ae8c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x701C 5328 bytes
font_01_sfnt_off00008237.bin
5dd6fc509ff52ed83338fcd06b56471dda8cca9b3670158ad5143e20f5c92d55		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8237 10080 bytes

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