Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c6f3cd0ed90eed6…

MALICIOUS

PDF

50.0 KB Created: 2020-08-24 10:53:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 74720d92360608c236420d5963cb1555 SHA-1: 1af5563c4b2a799eafcc91a633083534885b555c SHA-256: 0c6f3cd0ed90eed662d2156d69c1639107041bb32510a10bd2b1ace992e3bd99
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector infrastructure identified as malicious. The document body, though partially corrupted, contains text suggesting a lure related to a game guide, which is likely a pretext for phishing or a scam. The presence of a malicious redirector and a large number of external links indicates an attempt to drive traffic to potentially harmful 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=gladius+relics+of+war+space+marines+guide In PDF document text
    • http://files.bo-co-wandering.com/uploads/1/3/1/3/131382078/buvob.pdfIn PDF document text
    • http://files.tedxsandhillscc.org/uploads/1/3/1/4/131437106/9353264.pdfIn PDF document text
    • http://jiwetepi.skyviewbaseball.org/uploads/1/3/1/8/131856333/3447623.pdfIn PDF document text
    • http://radopolud.dispatchesfromindia.com/uploads/1/3/1/3/131379179/9671268.pdfIn PDF document text
    • http://files.hairbykida.com/uploads/1/3/0/7/130775223/ef51486.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/1/0435/6797/2513/files/91611002442.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5310/4790/files/rarewivibigezudovuzaxumoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5407/9904/files/4522007840.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8834/6262/files/81989956813.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4423/9510/files/test_bocconi_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9559/5938/files/mogakitamisuzesesugogo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wupukibasabozuxijixosi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/9347/8814/files/characteristics_of_the_holy_spirit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9247/4011/files/33924621627.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2209/7304/files/bejazufuzeki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9764/4449/files/54716851666.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2966/6724/files/xeboj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6508/9949/files/legrand_cable_tray_catalogue.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3089/4999/files/98279376991.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000084df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84DF 5596 bytes
SHA-256: eb087b6a4c0ff84a05c704ec1141a03b0bf4ce5a53cd8bd55dd1267961c7f283
font_01_sfnt_off000097eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97EB 10192 bytes
SHA-256: cf6adeee4d1fa690c9828a2cff5e430f56a7c8e3161eb54010f91d3be6678967