Malicious PDF — malware analysis report

Static analysis result for SHA-256 04e36efb71aef663…

MALICIOUS

PDF

52.1 KB Created: 2020-08-08 01:51:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f3b89137dbeecb9adf5e498701bbc0be SHA-1: 1ed29ad2e4a04cb693108ad2dd646434c619b4aa SHA-256: 04e36efb71aef66376f41001a8ec1495fafbe5a7763dad9093c8b9e1b94c8ef9
154 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which are SEO-optimized PDF slugs pointing to external resources. One of these links, https://ttraff.cc/pify?keyword=practical+kabbalah+for+magic+and+protection+pdf, is a known malicious redirector. The document's structure and the presence of numerous links suggest an attempt to manipulate search engine results or to lead users to malicious content through a link farm. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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.cc/pify?keyword=practical+kabbalah+for+magic+and+protection+pdf
    • http://files.prideontheplains.com/uploads/1/3/1/4/131452982/8457773.pdf
    • http://files.gabriellaquiroz.com/uploads/1/3/2/6/132681456/punuzibipoxure-vugabevalapo.pdf
    • http://files.northernbeachescleanupcrew.com/uploads/1/3/1/3/131380128/sepotifaluruwax.pdf
    • http://files.realty33.com/uploads/1/3/0/7/130739616/0155df8704e7.pdf
    • http://files.austlinq.com/uploads/1/3/0/7/130739779/eb2e7bfbfca.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0432/0821/2638/files/lolalopezujowatufeb.pdf
    • https://cdn.shopify.com/s/files/1/0434/0695/0561/files/building_blocks_of_life.pdf
    • https://cdn.shopify.com/s/files/1/0427/7341/4055/files/rudixupe.pdf
    • https://cdn.shopify.com/s/files/1/0432/4343/8242/files/52981336200.pdf
    • https://cdn.shopify.com/s/files/1/0437/2702/8375/files/aptitude_test_questions_and_answers_for_freshers.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/5081520916.pdf
    • https://cdn.shopify.com/s/files/1/0429/7634/6266/files/guzuzukasudaje.pdf
    • https://cdn.shopify.com/s/files/1/0430/8864/2197/files/26323018066.pdf
    • https://cdn.shopify.com/s/files/1/0433/7201/9877/files/82286097157.pdf
    • https://cdn.shopify.com/s/files/1/0448/1702/3138/files/eisenbud_commutative_algebra.pdf
    • https://cdn.shopify.com/s/files/1/0428/8711/9007/files/14193295516.pdf
    • https://cdn.shopify.com/s/files/1/0432/5516/9182/files/sims_bustin_out_ps2_cheats.pdf
    • https://cdn.shopify.com/s/files/1/0428/1715/9335/files/vexuza.pdf
    • https://cdn.shopify.com/s/files/1/0433/0894/1467/files/power_house_elite_home_gym.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008d80.bin
c9fb638362724ff254b04ba825f1772dc81ae4397f6a1e8f13922d00c844c72f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D80 5596 bytes
font_01_sfnt_off0000a060.bin
83b9353d3bac39a6695a1827ed49e2f5f50ce6d4c22776405f290eab7d796a0f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA060 10084 bytes

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