Malicious PDF — malware analysis report

Static analysis result for SHA-256 924921a7b343e8e6…

MALICIOUS

PDF

48.7 KB Created: 2020-08-05 03:47:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3df88615e0c356ff152ffd2a5cb01ecd SHA-1: 198031bd8a9120bb048bded1250bdd0e92d65a96 SHA-256: 924921a7b343e8e66ef4cc80d359bc6e8a44e71f5af20263da001114e7f3c75d
194 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links directs to a known malicious redirector. The document body itself is heavily obfuscated but contains a URL that appears to be part of the link farm. This suggests the document's purpose is to drive traffic to malicious infrastructure.

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=scope+and+functions+of+human+resource+management+pdf In PDF document text
    • http://files.midpacificowlrobotics.com/uploads/1/3/1/3/131380733/doturi_subip_bimafutilokex_gelusefib.pdfIn PDF document text
    • http://files.forgemd.com/uploads/1/3/0/8/130814644/vubuguvepiki.pdfIn PDF document text
    • http://files.rbsknowledge.com/uploads/1/3/2/6/132682070/jifilibosivasukud.pdfIn PDF document text
    • http://files.merchantsmrkt.com/uploads/1/3/1/4/131438439/xijubezeboko_xogid_vukedogikefadud.pdfIn PDF document text
    • http://files.twinartvision.com/uploads/1/3/0/7/130776592/vavesatoruzeki_bofovanisekuva.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/1/0431/7567/4024/files/janidafemojufut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1872/9110/files/radioactive_aerosols.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5064/5157/files/42998173376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5646/3014/files/technical_drawing_with_engineering_graphics_15th_edition_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6504/1311/files/29806827571.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56966684837.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8804/4442/files/watepodujapok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0658/1147/files/5778180192.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0913/0143/files/44208018226.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2226/2178/files/dizamudipani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4803/2666/files/kifamanum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/44411244229.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6596/6754/files/35497207981.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_off00007cc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CC6 5640 bytes
SHA-256: 0b997a2c278c77cac14c60718b0af615e7e58cdbb8c7ca4d2b82e37d3c68f099
font_01_sfnt_off00008fd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FD9 11584 bytes
SHA-256: d520c5568981814ee1bc6926d4c39a5ad582ce515322150bcaa553e0702ec0b6

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