Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c31c6ed29c2d475…

MALICIOUS

PDF

57.8 KB Created: 2020-08-19 03:59:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bba7ba83b1ef757739e175ef1d4f7ae4 SHA-1: dae75c7756fd30c726252cfa2a31c128cb58cfc6 SHA-256: 7c31c6ed29c2d4754a0dd6c097df6b95c505c71d3e36552f421e5856150cc7ec
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm designed to appear as legitimate content. The embedded URL 'https://ttraff.com/pify?keyword=khatu+shyam+ji+bhajan++mp4' is identified as a malicious redirector. The document body, though heavily obfuscated, contains this same URL, suggesting it is the primary lure. No scripts were extracted, but the PDF structure and linked URLs strongly indicate a phishing or malware distribution attempt.

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=khatu+shyam+ji+bhajan++mp4 In PDF document text
    • http://files.randolphroadrunners.org/uploads/1/3/1/3/131383743/jarexunuzutelemufa.pdfIn PDF document text
    • http://files.spoonful-osaji.com/uploads/1/3/0/7/130775163/wuzag.pdfIn PDF document text
    • http://bulexuso.paulashbyjohnsonphotography.co.uk/uploads/1/3/1/6/131606289/e798e56.pdfIn PDF document text
    • http://files.thecuteheifer.com/uploads/1/3/0/7/130775866/jubusugez.pdfIn PDF document text
    • http://files.trevoroc.com/uploads/1/3/0/7/130775892/patedakolugoz_papewimefa_lulezolax_kuvurukawewopu.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/1/0440/7531/9448/files/zumikobizisako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5792/0677/files/towelapevewes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6488/4384/files/pikakokugi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9424/4516/files/miocardiopata_hipertrofica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4543/7083/files/libertarian_party_platform.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3826/7809/files/93870636605.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0737/6542/files/jiwagitibuniwizativoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3518/0703/files/mibonu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8070/3399/files/99198995010.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8488/1824/files/21326287082.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5733/9813/files/angular_default_value_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8548/7516/files/66542175097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1889/6038/files/zofefotivedilezikus.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000733e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x733E 5304 bytes
SHA-256: 87d073295601bb18bd4d0fc6f871bb6511f264a0ce9863a342ee468ed8df8baa
font_01_sfnt_off0000853e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x853E 14776 bytes
SHA-256: 6682146cbb709c07d3e1b0a24cc6c957c925e3c9ff2e590833eacb5341d3ddad
font_02_sfnt_off0000b357.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB357 16204 bytes
SHA-256: 532315dfdc59b350d447ad91845dd8cc72a836e684f536ab9a4305dc5b53fb8e
font_03_sfnt_off0000c8c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8C3 4564 bytes
SHA-256: c94c48e39de9820f6d2c4dfe1eee7d20d77933d0e0b74c79b11010a14d45ae50