Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fba398af6d003f7…

MALICIOUS

PDF

41.9 KB Created: 2020-08-04 01:17:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e71990081de2ef8104284d04bb88e5f8 SHA-1: 3df902eed74be237e8b12bb63bd1afcc639acd05 SHA-256: 5fba398af6d003f721a04d14d6ecf7e0527de138f5fb1de60a4f526b6859f992
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, including a redirector URL identified as malicious. The document body, though heavily obfuscated, contains text suggesting a lure related to "Mergers and acquisition pdf". The presence of a malicious redirector and a large number of embedded links indicates an attempt to drive traffic to potentially harmful content, likely for phishing or malware distribution.

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=mergers+and+acquisition+pdf In PDF document text
    • http://files.newlife.ca/uploads/1/3/1/4/131438541/a65d4f5034f.pdfIn PDF document text
    • http://files.eatatheritage.co.uk/uploads/1/3/1/4/131438079/jazibokewekevapo.pdfIn PDF document text
    • http://files.stcm.org.uk/uploads/1/3/2/6/132681885/janororagod-dizofukomator-lipesanib-jukulofejuz.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/1/0431/6862/8892/files/ruwijonix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2318/7614/files/2152532009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8549/6469/files/catch_me_if_you_can_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6240/1947/files/jexotefusotisazorijivo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9695/7343/files/54836014546.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8095/8617/files/51841058490.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9529/4101/files/60344694578.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8510/3255/files/82790311502.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9181/1734/files/physics_book_for_bsc_part_1_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2881/5783/files/best_entrepreneur_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0063/5290/files/convert_mkv_to_mp3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9972/4703/files/pizazubenanuwezira.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
🗂 Part of campaign: chicagoshares.org 5 samples

Related samples 8

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_off000064d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64D3 5420 bytes
SHA-256: 609b502c585b8104a5da68b2e6ab2a677abd3109da74b9ad04b7e10f7eb792d6
font_01_sfnt_off0000775a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x775A 10460 bytes
SHA-256: df662a55c20274107205adf472f1e64fa9025958f32b3888967879e307ff69b9

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