Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dcc776ba03ad2ad…

MALICIOUS

PDF

40.8 KB Created: 2020-08-18 18:48:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ad13cede8ce0cf55ebc2a5fec1699546 SHA-1: f31c31952d056fe29da7c2d4eca26716266706ea SHA-256: 0dcc776ba03ad2adf58c33b7c88586e3fb691ed291bb1e076bafd241ca00a429
194 Risk Score

Malware Insights

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

The PDF contains numerous links disguised as download options for a game, which redirect to a malicious URL. The ML classifier strongly indicates maliciousness, and the presence of a redirector link confirms the intent to lead users to potentially harmful content. No scripts were extracted, but the document structure itself facilitates a phishing attack.

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=bookworm+adventure+2+free++for+pc In PDF document text
    • http://files.romehomelb.com/uploads/1/3/1/4/131438299/2962037.pdfIn PDF document text
    • http://files.dtechinc.org/uploads/1/3/1/4/131438804/regek_bubenodud.pdfIn PDF document text
    • http://gapitagu.centralchimneysweeping.co.uk/uploads/1/3/2/6/132681946/4756404.pdfIn PDF document text
    • http://files.olivetteinbloom.org/uploads/1/3/0/8/130873708/8fef9a769c.pdfIn PDF document text
    • http://nevatonot.waytoomuchstuffintheattic.com/uploads/1/3/0/7/130776661/liloza.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/1/0432/4560/0931/files/webopisozogutane.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7547/7416/files/tiwukikalafosamewut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9496/6436/files/70720602085.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2496/2968/files/big_endian_and_little_endian.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8625/9100/files/rerujoli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4379/0760/files/5850390702.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1572/4456/files/71953294539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8606/1480/files/jabeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7853/2758/files/22045326378.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6556/3549/files/baazigar_movie_all_songs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/1482/7677/files/tavanumawumon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3192/8730/files/88990550639.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_off00005f13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F13 5488 bytes
SHA-256: 7e0b41a0880fe94393f34d09612ee076fed37ad226a8d4cee99f189fc01268ac
font_01_sfnt_off000071c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71C8 10468 bytes
SHA-256: 6d7111d87e04fa752e07ac270b7b68d8a1b1c3e546c3eaa2ddb93a13682fe6f2

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