Malicious PDF — malware analysis report

Static analysis result for SHA-256 07afa002cb3b662f…

MALICIOUS

PDF

69.1 KB Created: 2020-08-06 11:57:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d2dbdecadb59a06c428621df70fee41e SHA-1: 169911205f604fd484c6441f18557ee4dd8f35df SHA-256: 07afa002cb3b662ff66f8301f0b82339cab02d6ccc4daf02e35804c082d07da1
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is designed to lead users to further malicious content. The document body, though heavily obfuscated, contains text suggesting it is a PDF related to 'roman catholic novena prayers', likely a lure. The presence of numerous external links, many pointing to Shopify domains hosting other PDFs, indicates a link farm SEO tactic to improve search engine ranking for malicious content.

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=roman+catholic+novena+prayers+pdf
    • http://files.drakebaynature.com/uploads/1/3/2/7/132740384/petulereginesibi.pdf
    • http://files.writingandrhetoricmke.com/uploads/1/3/1/8/131856852/muwuteresaniziligebe.pdf
    • http://files.derrickalstonphotography.com/uploads/1/3/2/7/132740260/wikolopabu_mivupazege_dikatawug.pdf
    • http://files.roninspires.com/uploads/1/3/2/3/132302816/9735965.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0434/2048/3751/files/90296569843.pdf
    • https://cdn.shopify.com/s/files/1/0433/4511/7342/files/sesutuvudagem.pdf
    • https://cdn.shopify.com/s/files/1/0427/6623/7852/files/pupavapuju.pdf
    • https://cdn.shopify.com/s/files/1/0432/9753/8203/files/96675476565.pdf
    • https://cdn.shopify.com/s/files/1/0430/7612/4821/files/xireri.pdf
    • https://cdn.shopify.com/s/files/1/0430/9850/5369/files/89490353746.pdf
    • https://cdn.shopify.com/s/files/1/0431/5152/4008/files/2583438175.pdf
    • https://cdn.shopify.com/s/files/1/0433/8037/5704/files/46114795691.pdf
    • https://cdn.shopify.com/s/files/1/0428/8974/0441/files/94500130934.pdf
    • https://cdn.shopify.com/s/files/1/0432/6195/2155/files/xozemo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lonuxifipepi.pdf
    • https://cdn.shopify.com/s/files/1/0434/4994/2176/files/78513258867.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/
    • https://savannah.gnu.org/projects/freefont/
    • http://www.gnu.org/licenses/
    • http://www.gnu.org/copyleft/gpl.html
    • 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_off0000a94b.bin
629123bfde0685c5f69bbdd27ec008bde0224d5c30af1dabb990f6ee33ea778e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA94B 6440 bytes
font_01_sfnt_off0000b93f.bin
5fb7ecbaac2d365efb23b7e44be822c851fe2224d6f735793933183abe356a45		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB93F 5564 bytes
font_02_sfnt_off0000cc0c.bin
a7ff5f3738dbab6d2cc48b1a0fb29e7924c42c1a92774d0d578234addb9718c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCC0C 10368 bytes
font_03_sfnt_off0000efbf.bin
5e8d1db9377a79caa6140f9fe8d4705e34c68e225e97dfa397a9076f4330df7c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEFBF 16452 bytes

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