Malicious PDF — malware analysis report

Static analysis result for SHA-256 02f3b414b8f58b6e…

MALICIOUS

PDF

62.2 KB Created: 2020-08-14 07:54:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 59f048e221c937c6d85a877257adab7d SHA-1: 0d93f1fd2db9d778d5411e9cee40b75def4e12d9 SHA-256: 02f3b414b8f58b6eecb4507393d6fbe91d7254c438194e478b977c32e0741398
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Cdf and pdf plot' and includes the malicious URL, suggesting a lure to a phishing or malware distribution site. The ML classifier strongly flagged this PDF as malicious.

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.com/pify?keyword=cdf+and+pdf+plot
    • http://files.nysdivorce.com/uploads/1/3/0/7/130775952/lajamaralo.pdf
    • http://files.apcoloredstones.com/uploads/1/3/0/8/130813120/a84a3f.pdf
    • http://files.bishopsstortfordjudo.com/uploads/1/3/1/6/131608016/vogeletuxu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0433/3663/0422/files/free_translation_books.pdf
    • https://cdn.shopify.com/s/files/1/0436/7283/0105/files/80835567163.pdf
    • https://cdn.shopify.com/s/files/1/0436/5864/1573/files/bumolawarifi.pdf
    • https://cdn.shopify.com/s/files/1/0434/6108/3296/files/mogutagakikofog.pdf
    • https://cdn.shopify.com/s/files/1/0432/8020/3944/files/adobe_flash_cc_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0431/9775/9652/files/2437960605.pdf
    • https://cdn.shopify.com/s/files/1/0430/2995/4721/files/weluzugevajikakig.pdf
    • https://cdn.shopify.com/s/files/1/0434/3024/8600/files/96946210026.pdf
    • https://cdn.shopify.com/s/files/1/0432/4907/4336/files/disagonibetoxije.pdf
    • https://cdn.shopify.com/s/files/1/0434/0681/9477/files/tejewaruf.pdf
    • https://cdn.shopify.com/s/files/1/0430/6301/7629/files/59224339871.pdf
    • https://cdn.shopify.com/s/files/1/0431/6276/3425/files/application_letter_sample_for_civil_engineer.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008876.bin
b257458864c7ef09cd8cb986f7227020593ff66b4eeae9590c5c9702073fe434		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8876 4404 bytes
font_01_sfnt_off0000977e.bin
2734a4600119c1c0dae708f57a39ceda8f180ec1ebbf88b421d5098dd00bdfe8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x977E 15440 bytes
font_02_sfnt_off0000c850.bin
f3fc314fb354192e76360cd123b7d9a03d3dc8559c8ea51a6bdd4cbb7575671d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC850 16220 bytes
font_03_sfnt_off0000ddb4.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDDB4 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.