Malicious PDF — malware analysis report

Static analysis result for SHA-256 18770ee3deb9c775…

MALICIOUS

PDF

48.5 KB Created: 2020-08-21 15:17:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 217dbc961604e2a8ac184686fa124bcc SHA-1: 98a0bca17979f40bdbb8da7e4f884d490ec11164 SHA-256: 18770ee3deb9c77587bbfb75220902244d65fe6e5f477c2d45a5cc7c90ff112f
194 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by an ML classifier and contains multiple links to known malicious redirector infrastructure. The document body, though partially corrupted, contains text suggesting a lure related to 'sound deadening sheets pakistan' and includes the malicious URL. The presence of numerous external PDF links, many pointing to Shopify, suggests a link farm designed to distribute malicious content or phish for information.

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.cc/pify?keyword=sound+deadening+sheets+pakistan In PDF document text
    • http://votivu.australian-spirit.com/uploads/1/3/2/6/132680835/2dfadd8dfe30.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/1/0437/1218/4474/files/zazalox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8658/5749/files/63672718497.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5535/7852/files/analise_de_dados_luiz_favero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4996/5985/files/zudur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7849/1041/files/rangitaranga_movie_online_with_english_subtitles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6244/2646/files/botizutukubudag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6396/7906/files/computer_application_in_business_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6590/9160/files/16588496674.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1495/4908/files/86152520047.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6842/3334/files/radavulofanejagevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9094/3902/files/betisisefes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2580/0087/files/coesia_annual_report_2015.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_off00005c31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C31 5260 bytes
SHA-256: 1d3d1dc1c443bd85d691aef27fec52b2ffc7402aef15fa4e84659112f199d159
font_01_sfnt_off00006e06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E06 2012 bytes
SHA-256: 0df9832cfc5af80b801f03965aa32ffa143350b02011ec55e095d3f91a351c64
font_02_sfnt_off0000773c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x773C 10588 bytes
SHA-256: 4b5330c2dc3008811333be09d47f2070cb1d3a89ff57c16eb86d54e41cfde4ea
font_03_sfnt_off00009b9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B9E 16820 bytes
SHA-256: 86a22305043906ec9e2b1a2e8b2edb4cf4d539c66c45e7b772ab6c8382683431

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