Malicious PDF — malware analysis report

Static analysis result for SHA-256 23a0a4f10102d786…

MALICIOUS

PDF

62.3 KB Created: 2020-07-29 05:01:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 404925400a29c2f48a16736a6067ff35 SHA-1: a6ea45d28586f3b6c1d5cb3bd9a5201f5a402d72 SHA-256: 23a0a4f10102d786674c1c800e47da731ac788ea855c77845739638e64926d0f
194 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to the presence of a link farm containing numerous external links. One of these links, 'https://ttraff.cc/pify?keyword=vanilla+wow+fury+warrior+leveling+guide', points to a known malicious redirector. The document body appears to be obfuscated or corrupted, preventing analysis of its specific content, but the heuristic firings strongly indicate a redirection 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.cc/pify?keyword=vanilla+wow+fury+warrior+leveling+guide In PDF document text
    • http://files.buyalphabetphotos.com/uploads/1/3/1/3/131379117/zidovoxa.pdfIn PDF document text
    • http://files.coldbrewespresso.com/uploads/1/3/1/3/131384173/e48d07a20d48d.pdfIn PDF document text
    • http://files.lancasterthundertix.com/uploads/1/3/1/8/131856700/sizusazasoxa.pdfIn PDF document text
    • http://files.ashliesart.com/uploads/1/3/0/7/130739146/792edad.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/1/0433/0687/7080/files/86477918810.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gizuvesadumewagetikuxumut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5973/9814/files/17070967133.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9482/7418/files/tavit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7950/7880/files/jelova.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6337/7048/files/netimiduzulowibumi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8959/0427/files/bupidobebudesefupugif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31443612403.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0492/7905/files/fadasat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9358/9142/files/74619666552.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9925/1093/files/25329496717.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3575/3639/files/noxiwevel.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_off0000b7dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB7DC 4916 bytes
SHA-256: 53c87a064b6b206660e47441c00857b6ff8991368128e6f520b45177587258a6
font_01_sfnt_off0000c8b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8B9 10468 bytes
SHA-256: a700e3dff6e744f78eb315ceb16ef0b63535b95e5140193ddac57f2dd099a37a

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