Malicious PDF — malware analysis report

Static analysis result for SHA-256 b32b5762ae32c816…

MALICIOUS

PDF

47.8 KB Created: 2020-08-18 21:09:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7e7f0f89d0552e6ee16cabd0eb9a8f81 SHA-1: b91edfe07c35b1caf54e6e029852d6b4593bef26 SHA-256: b32b5762ae32c81684cbf89331f519e3c5458a0cd8461170d33882ea59e4434e
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files, suggesting a link farm or redirection scheme. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=telugu+devotional+books+pdf+free'. The document body, though heavily obfuscated, also contains this URL, indicating an attempt to lure users to a malicious site under the guise of providing free devotional books.

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=telugu+devotional+books+pdf+free In PDF document text
    • http://gibevevid.pumpernickelpictures.com/uploads/1/3/0/8/130813765/buduzatawexisuxunina.pdfIn PDF document text
    • http://dobopi.ditcheatchurch.org/uploads/1/3/1/6/131606289/nawabejerirok_xiverej_zogoworoz_nojuz.pdfIn PDF document text
    • http://files.usk9.com/uploads/1/3/0/8/130874257/tuxefuf_wefunipudul_sapepebexilojup.pdfIn PDF document text
    • http://files.shopvcboutique.com/uploads/1/3/1/0/131070911/10408c1b.pdfIn PDF document text
    • http://rijuwa.frapanella.com/uploads/1/3/1/4/131407711/88b5bc9e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3113/4365/files/98589958150.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8438/9275/files/pivimesubudebinetifasoto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fixasitisajixumazurezeve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4901/5713/files/81885166045.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3533/6616/files/vazenotinatizepemorifafe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0342/9535/files/.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2559/6573/files/42343570707.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3620/5479/files/resize_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7337/1288/files/browser_detection_javascript.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4765/5323/files/36359457109.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6158/2755/files/68441361242.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ee9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE9 5420 bytes
SHA-256: 9ca2f20673658ae8a028420ba50a0335fb9bb5a6400ff9121671b38f35575bd4
font_01_sfnt_off00007167.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7167 7384 bytes
SHA-256: a584cdacc9a391aee83b58d1bbd870595c75856c115a57bdcabdd6c98af6298c
font_02_sfnt_off0000883b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x883B 12268 bytes
SHA-256: ca05531b1af498e519b4bf1f21762d02ceda7d069607bd65b1678cc8bf9f7530