Malicious PDF — malware analysis report

Static analysis result for SHA-256 93112fc38b921f50…

MALICIOUS

PDF

53.6 KB Created: 2020-07-30 14:48:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ad0d5aa622fe7f04f9a6f3aa4c373b68 SHA-1: a748e8a93786f791b5e7b54e2c810e745c4821fe SHA-256: 93112fc38b921f5057c9e08f83545f4c14d82b2140d700059f04fe230187f201
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged as malicious due to a high number of embedded links, many of which point to external PDF files hosted on various domains, including a significant number on cdn.shopify.com. One critical heuristic indicates these links are part of a redirector infrastructure. The ML classifier also strongly indicated maliciousness. The document body is heavily obfuscated and appears to contain metadata rather than user-facing 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.cc/pify?keyword=l+adjectif+numeral+cardinal+pdf In PDF document text
    • http://files.zforcegt.org/uploads/1/3/0/7/130740141/towugifepoxepak-dolasezo-savafu-lewefamine.pdfIn PDF document text
    • http://files.artbywinette.com/uploads/1/3/1/1/131163780/jikameguneje.pdfIn PDF document text
    • http://files.verdantrepublic.com/uploads/1/3/1/3/131384101/fc057b18603.pdfIn PDF document text
    • http://files.singing4ourlives.net/uploads/1/3/1/4/131437626/1c70b6c10.pdfIn PDF document text
    • http://files.heavygrail.net/uploads/1/3/1/3/131380733/bitat.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/1/0433/9331/9079/files/teduxumebupovo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2639/0933/files/fediwegujupazol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8184/3356/files/tixozipag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8544/7833/files/27823774553.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9755/4084/files/17881012951.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1009/6284/files/47689751435.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4062/0200/files/45910635138.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4198/7479/files/kinudotewej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4448/6824/files/runojigeta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6145/0654/files/tiwarurodibusezobumuzo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5461/9041/files/xukemujovonexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2471/9773/files/kepewizonogemijozavizina.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 8

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_off000094cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94CC 4912 bytes
SHA-256: dcf38c9a22347b3f51b5a07328845468a56964c4a5b52453936431ecff90a282
font_01_sfnt_off0000a564.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA564 10772 bytes
SHA-256: d19a6d79a8e9121740b808696c7bed233c1bd4a39503c24ae82edbb2d50bf157

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