Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b8aa680f7c093e2…

MALICIOUS

PDF

44.6 KB Created: 2020-08-19 03:04:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9108a90b4dd7e7aaad8a998cecddb3fe SHA-1: 6b1091a94a245743e5c6a34531e4158e21d2258d SHA-256: 5b8aa680f7c093e2e082e8d067fe94b9bda66b1614357772a5fb5996dbf5104e
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to known malicious infrastructure, specifically a redirector at 'ttraff.cc'. The document body, though heavily obfuscated, contains text that appears to be a lure ('Dbd pig guide') and the malicious URL. This suggests the document is designed to trick users into visiting a malicious site, likely for phishing or to download further malware.

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=dbd+pig+guide In PDF document text
    • http://padezewi.wabseny.com/uploads/1/3/0/9/130969940/garobafewajusedubi.pdfIn PDF document text
    • http://files.justonlyjenn.com/uploads/1/3/1/4/131406075/pamexelo-ziriliwurevej-guzovumute.pdfIn PDF document text
    • http://files.chewoncakes.com/uploads/1/3/2/6/132695543/zavulirofezal_gilawufijuzunet_dutadi_xefizetinata.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/1/0435/2330/9727/files/76872498889.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6560/6301/files/apc_1kva_ups_datasheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0096/1947/files/70374380055.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0684/4315/files/stnose_carotidienne.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2135/2606/files/97728429652.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9352/4634/files/download_materi_osn_biologi_sma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0428/9439/files/xurulewodora.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2204/6616/files/alan_gratz_refugee.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0739/3439/files/82387057936.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9511/2347/files/telegiromilokarogolajitu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0466/2758/6213/files/revista_atualidades_2018_2_semestre.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 2

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_off0000728c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x728C 4752 bytes
SHA-256: fed34076cee65727f04fd50c82f8149471900a36386e0c120dbdf741c4fcf4a2
font_01_sfnt_off000082c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82C8 10244 bytes
SHA-256: db49ed1a2db796b47abcee124ee7485587212ca73a714e56bcd8e37d56f962d5

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