Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cb01e3d5a67225a…

MALICIOUS

PDF

38.7 KB Created: 2020-08-13 05:01:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4ef37406baac1001735e73e54688ce45 SHA-1: 5e5580e68e803012f5ff76a69a112d8798c33801 SHA-256: 3cb01e3d5a67225af5790124aee122e2bb15c7f4f71d690321ca81fc3d0ceb42
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 hosted on various domains. One of the primary links directs to a known malicious redirector, suggesting a phishing or malware distribution attempt. The document body text, while partially corrupted, includes the search query "All quran bangla translation pdf", likely used as a lure to disguise the malicious intent. 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.ru/pify?keyword=all+quran+bangla+translation+pdf In PDF document text
    • http://files.keyboardmelodiesforseniors.com/uploads/1/3/2/6/132681495/7125080.pdfIn PDF document text
    • http://files.est-spray.com/uploads/1/3/2/6/132681863/ce819045.pdfIn PDF document text
    • http://files.theblackpearlnailacademy.com/uploads/1/3/0/7/130775490/gakire-nupovoligu-gaposofedub-giwubava.pdfIn PDF document text
    • http://files.premiergoldendoodles.net/uploads/1/3/0/8/130814126/gujow-wanim.pdfIn PDF document text
    • http://files.quiltsbyj.com/uploads/1/3/0/9/130969238/73756.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/44329390643.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2927/2488/files/nabefolunoguzizob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57955619809.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7920/5013/files/gobimulutojen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8118/8003/files/gujaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2432/6564/files/60109643577.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9993/9235/files/devunosipus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0831/0943/files/77351219675.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7727/1706/files/6614086362.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3235/4711/files/firenizizulafuduxefusen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7881/1810/files/59274079912.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004c45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C45 5228 bytes
SHA-256: 9c5c1ef38deb9d7d1a7061fddb8b3346c5201c1d6579248026d4bc2b15baac5d
font_01_sfnt_off00005dfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DFB 9924 bytes
SHA-256: 188c087d9b13e87a23a893b1c02b3448c5511c49ba09ed5af92f7f160e36c556
font_02_sfnt_off00007fd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FD5 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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