Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd833b5d33a96ab1…

MALICIOUS

PDF

45.0 KB Created: 2020-08-07 04:47:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 840ccdfb606e1ee9aefa8f04766cc690 SHA-1: 3611f84a12f20b7977b9021e2e57ad8ea347fe07 SHA-256: fd833b5d33a96ab14b1dba707e5b0e392f3fe0134b0f1479fcd387c68126b5f8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF file contains a large number of embedded links, with a critical heuristic firing indicating it's a malicious redirector. The primary malicious URL identified is https://ttraff.com/pify?keyword=qasida+burda+lyrics+pdf, which is likely used to lead users to a phishing or malware distribution site. The document body itself is largely unreadable binary data, but the presence of numerous links and the specific heuristic firings strongly suggest a malicious intent to redirect users.

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=qasida+burda+lyrics+pdf In PDF document text
    • http://files.realestatesystemsofgillette.com/uploads/1/3/1/4/131482997/85d39700f11d5.pdfIn PDF document text
    • http://files.libertyearlyeducationcenter.com/uploads/1/3/0/8/130874691/lovogosumetez_fokaganot.pdfIn PDF document text
    • http://files.marcyjosbakery.com/uploads/1/3/0/9/130969710/totez.pdfIn PDF document text
    • http://sidilep.levelnegotiations.com/uploads/1/3/0/7/130775795/3d85d248326d.pdfIn PDF document text
    • http://files.britishrecordshoparchive.org/uploads/1/3/1/4/131482884/xejaludalawi.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/1/0433/9325/3526/files/60463097093.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9000/9502/files/16157925139.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5651/2667/files/39995522519.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3752/2085/files/best_ps1_emulator_for_windows_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0462/4021/files/zovibovaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7424/8101/files/82357615184.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1402/8450/files/natewen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9365/5716/files/minecraft_guns_resource_pack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3171/4199/files/wuwofekaxenumoru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6564/7012/files/kaselofedad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8907/5099/files/gexekeropamifewubegog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5547/1006/files/dialectic_of_enlightenment_full_text.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_off0000637c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x637C 4920 bytes
SHA-256: 1de21c8e37d0fdcf9fad356eb4ceda9f36a1761edd2f59cd514f9d6383e5b441
font_01_sfnt_off00007437.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7437 10708 bytes
SHA-256: 96210ac021919869db2d4db4a76dfb2076c3fb91df960fc3ce9205c1e403116b
font_02_sfnt_off00009871.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9871 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e