Malicious PDF — malware analysis report

Static analysis result for SHA-256 63cbc052d10741f7…

MALICIOUS

PDF

53.3 KB Created: 2020-08-11 18:11:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 82d5af57f0917efa43bacb7c6aee5fdc SHA-1: 083bc86d4bbbc9a481e3f7427f86774e2014aa33 SHA-256: 63cbc052d10741f70660461aa7bcbd034b77f0f1420bb99ac95976e96a449a14
154 Risk Score

Malware Insights

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

This PDF document contains numerous links, many of which point to external resources, including a known malicious redirector. The primary malicious link, https://ttraff.cc/pify?keyword=ashab+e+kahf+story+in+urdu+pdf+download, is designed to lure users into clicking it under the guise of a story download. The document's structure and the presence of many Shopify links suggest a link farm or SEO manipulation tactic to distribute 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.cc/pify?keyword=ashab+e+kahf+story+in+urdu+pdf+download
    • http://files.weddingmarchioro.net/uploads/1/3/1/6/131606392/komesutigitadifake.pdf
    • http://files.jordanbeeks.com/uploads/1/3/0/8/130814717/227fd2966.pdf
    • http://files.gilbertmarshallbranding.com/uploads/1/3/1/0/131070859/3037360.pdf
    • http://files.educatedlittlemonsters.org/uploads/1/3/0/9/130969576/9149473.pdf
    • http://mabek.1stusinfantry.com/uploads/1/3/2/6/132695569/limuzisununovaso.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0428/9114/9475/files/64611927414.pdf
    • https://cdn.shopify.com/s/files/1/0431/6862/8887/files/78572656145.pdf
    • https://cdn.shopify.com/s/files/1/0431/1239/9009/files/pekekegedavaduturosetekex.pdf
    • https://cdn.shopify.com/s/files/1/0431/1433/2309/files/rogonix.pdf
    • https://cdn.shopify.com/s/files/1/0438/7844/9307/files/ability_score_generator.pdf
    • https://cdn.shopify.com/s/files/1/0432/1496/2848/files/cat_verbal_ability_and_reading_comprehension.pdf
    • https://cdn.shopify.com/s/files/1/0433/9492/4694/files/memojojikawemojanilaf.pdf
    • https://cdn.shopify.com/s/files/1/0435/5588/1115/files/personal_pronouns_possessive_adjectives_exercise.pdf
    • https://cdn.shopify.com/s/files/1/0432/1109/6221/files/78707567929.pdf
    • https://cdn.shopify.com/s/files/1/0429/7592/0282/files/medigabazaririfi.pdf
    • https://cdn.shopify.com/s/files/1/0434/4938/5126/files/connotation_and_denotation_lesson_plan.pdf
    • https://cdn.shopify.com/s/files/1/0432/3927/6707/files/java_a_beginners_guide.pdf
    • https://cdn.shopify.com/s/files/1/0433/4357/7246/files/5e_college_of_swords.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d95.bin
c8c59fba367d32ba55b0214b874c4386792eaa799bafe9d7b7ea66e19fddec21		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D95 5516 bytes
font_01_sfnt_off0000805a.bin
fc4c719412a9bb11cc6e416b3182b595be8ad27f8f72149d5ee27c77e6991143		 pdf-font-stream PDF embedded font (sfnt) at offset 0x805A 14684 bytes
font_02_sfnt_off0000ae7b.bin
cd7cd4e09a8f49a42980a05d4a374255ef1fc6cb598272f9b0264c53e3b38989		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAE7B 17100 bytes

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