Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae05031b425f5358…

MALICIOUS

PDF

59.4 KB Created: 2020-07-28 09:53:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5ceb4f5c9a2320f129948801bedee960 SHA-1: 445417aff885b06e1d0272374e2c9f9a6195e073 SHA-256: ae05031b425f5358b53b9a30b5a76838b0e1351274668a312dcf44f649062b5f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous embedded links, with a critical heuristic identifying it as a malicious redirector. One of the primary links directs to 'ttraff.com', a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Assamese poem song' and metadata indicating it was generated by wkhtmltopdf, suggesting a lure to a malicious site. The presence of multiple Shopify URLs, while marked as benign, are part of a link farm, further indicating malicious intent.

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.com/pify?keyword=assamese+poem+song In PDF document text
    • http://files.iconiacapital.com/uploads/1/3/1/1/131163980/6592454.pdfIn PDF document text
    • http://files.blackandgraybrewing.com/uploads/1/3/2/7/132740949/88689f7c8b43.pdfIn PDF document text
    • http://files.markskicksonroute66.com/uploads/1/3/0/8/130814100/76518d30a46.pdfIn PDF document text
    • http://files.flattailpress.com/uploads/1/3/1/3/131381150/ba3554881a1.pdfIn PDF document text
    • http://files.libertytactical.solutions/uploads/1/3/1/8/131856539/c159f2ae8f7e2.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/1/0436/9793/0393/files/80863227413.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9679/2471/files/69362320239.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9602/3975/files/45501997697.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/31565299957.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2839/7728/files/xutimedopawusesofatimo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5872/5015/files/54668824358.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5344/0414/files/vozile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0811/5366/files/lidudaxologaburika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3260/7894/files/sazigofewifotutinalod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tizisixurodegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1703/5166/files/26335045089.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008a99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A99 4660 bytes
SHA-256: 7824b00e8f8884118df5491ad2af97a88487041edc5d233777e300944a68a569
font_01_sfnt_off00009a41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A41 7744 bytes
SHA-256: a8d9068dbe0d2b6e4218387ed7a5c6726f2106e8192f6f67815ce5e1448b2ba7
font_02_sfnt_off0000b355.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB355 13900 bytes
SHA-256: 5ba22529273c38e41c06ce9c6f3cbbe6ce0a13dc6202260afacd7680af224e72