Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecf83e5e350cc239…

MALICIOUS

PDF

59.9 KB Created: 2020-08-12 07:43:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 67f889185b83720b5c048d0559ce1b20 SHA-1: a0d6b5a1a06bfaaa0ca024361db27e34c055b4d5 SHA-256: ecf83e5e350cc23948b9d785cc473339ee871a613aed016185f1b169e1f622bf
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass external link farm, with one prominent link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Bahria town building bylaws pdf' and includes the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of numerous links, many hosted on Shopify, indicates a link farm designed to obscure the ultimate destination.

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=bahria+town+building+bylaws+pdf In PDF document text
    • http://ligak.hboierc.com/uploads/1/3/1/4/131408738/nodidulaturamo-lifogereka-donivelod.pdfIn PDF document text
    • http://files.setxnewhorizons.com/uploads/1/3/1/3/131384071/wozuvin.pdfIn PDF document text
    • http://rogope.britt324.com/uploads/1/3/1/4/131437119/sobubovitemelilaf.pdfIn PDF document text
    • http://files.tohallyuwithlove.com/uploads/1/3/1/4/131407135/d559bcd5c6ab64.pdfIn PDF document text
    • http://files.timberlinehunting.com/uploads/1/3/1/0/131069934/sokigemimipapize.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3169/1421/files/vobujuluziwunesa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3630/2750/files/kidibewa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5025/5014/files/prc_117g_technical_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5314/5495/files/college_admission_essay.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9464/5663/files/origin_of_computer_graphics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3161/6918/files/1685789718.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2309/6216/files/defesevimovibilokapib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5715/1142/files/74703715491.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9607/0560/files/22800802444.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2041/1289/files/xuzudawavizakiriputure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7026/7291/files/telcordia_sr_332.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7917/1222/files/82058279809.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 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ab0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB0A 5688 bytes
SHA-256: 6843e65db96d12d89cc972b6d3a27abeac3d6de9618c91a6e29b6be376ef92b3
font_01_sfnt_off0000be72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE72 10540 bytes
SHA-256: 590601fc12a3f4ee49061a7b63fa354fe6fc87c3fb396f99a55270b5eeea3f01

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