Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3528bc4b68ff02e…

MALICIOUS

PDF

60.6 KB Created: 2020-08-12 12:15:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 57731d9d62e5c442a2cc8c8844fe85d2 SHA-1: 3dc544368cc5e0e024112a7808a6a95ff24e227e SHA-256: b3528bc4b68ff02eabf0c57a8aeeff1dba5d3011a1544859e3a7bbc3b40dae4a
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, many of which point to a link farm hosted on Shopify. One of these links, https://ttraff.com/pify?keyword=attahiyat+surah+in+telugu+pdf, is identified as a malicious redirector. The document body, though heavily obfuscated, appears to be a lure related to a religious text, likely to trick users into clicking the malicious link. No scripts were extracted from this sample.

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=attahiyat+surah+in+telugu+pdf In PDF document text
    • http://files.coachyash.com/uploads/1/3/1/3/131380612/zuxaba_fewamugofow_nozujawisaf.pdfIn PDF document text
    • http://metanoj.nhbirth.com/uploads/1/3/1/3/131398591/bosajap.pdfIn PDF document text
    • http://files.kellicorneliaphotography.com/uploads/1/3/1/4/131438539/wilaniluderabumejuge.pdfIn PDF document text
    • http://sufulaga.uusandiego.org/uploads/1/3/2/6/132681670/joxupag.pdfIn PDF document text
    • http://kapaved.crossfithh.de/uploads/1/3/0/7/130776418/vixuxitupegixux.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
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2906/0001/files/92138009654.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5778/3718/files/65637405116.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5261/4311/files/kurujedesuwugitotasobore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1102/2756/files/mojegisegoxubugo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4525/6352/files/tojabefesopugaferapuxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1470/9670/files/makalah_ashabul_kahfi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6041/0006/files/89688563309.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6782/4533/files/notitevadewetu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7437/9157/files/biology_notes_for_class_12_chapter_wise_free_download.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64C2 5168 bytes
SHA-256: 579712a04f4da026f5281473de0de34b9b6d0770b6570ba9e27c6790f3dc44c1
font_01_sfnt_off0000764c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x764C 7200 bytes
SHA-256: e2e8d8189c15a781ab70c5ecf92798c811a4ad0e584130cf7a810d033a603669
font_02_sfnt_off00008c7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C7A 14736 bytes
SHA-256: 7c0b0de332f2303d31cb6efcafd498def8a75ac33d17791c4ad6578bbff11ca6
font_03_sfnt_off0000bb8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB8B 17788 bytes
SHA-256: f2a778c2ea287ae96c6cf2a0055ac58f997fba8998a2172cfe35231de587f52a
font_04_sfnt_off0000d653.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD653 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3