Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bb65768e18340b3…

MALICIOUS

PDF

34.0 KB Created: 2020-07-31 23:25:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7bbc65e5bb0975390219c5b550aee1fa SHA-1: d09105939744a1e4274d2ed1eeb1d5ed4747c6d4 SHA-256: 0bb65768e18340b36cd1268ef0d5dc15ad8310047ee9e2956b5b2b49b960595e
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a primary redirector identified as malicious. The document body, though heavily obfuscated, contains text related to a TV show torrent and the malicious URL, suggesting a phishing or malware distribution lure. The ML classifier strongly indicates maliciousness, and the presence of numerous links points to a link farm or SEO poisoning tactic.

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=silicon+valley+s04e05+torrent In PDF document text
    • http://files.waywardcompass.com/uploads/1/3/2/6/132695818/xopetuvabasuwa-gikatiwafakopoj-pozofulijip-wojabikofo.pdfIn PDF document text
    • http://files.ladybugacres.com/uploads/1/3/1/6/131637108/9602232.pdfIn PDF document text
    • http://files.teachervogel.com/uploads/1/3/1/8/131857916/vuniz.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/1/0434/8834/6262/files/bibixoxadamagoto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1238/2116/files/zinamixaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/837510473.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1224/4134/files/norikuwodudamad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0159/3505/files/jukefetevagopuwewesifodek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2118/6718/files/5757593117.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5406/4028/files/wanudebef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5598/8374/files/zugowutup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2351/5294/files/42523646584.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2145/8853/files/mavumuwuwotedukawa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1458/6517/files/26551416051.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 3

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_off0000483b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x483B 5412 bytes
SHA-256: 83601bc8c8a33dc4f0ac3132c0b7624db21f9658ca568289efce317d236f16fd
font_01_sfnt_off00005ac9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AC9 9492 bytes
SHA-256: 00781ed20a1d397bebccc17a8dd7e8ef0a1bd45ab4074f7796717c19d32a5cc9

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