Malicious PDF — malware analysis report

Static analysis result for SHA-256 7491e41e11f62b10…

MALICIOUS

PDF

37.4 KB Created: 2020-08-09 07:54:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 090fbe62bb8696f0c227df184e87ea51 SHA-1: b66f41565b482150c3fd1ea3a64dec17613d1670 SHA-256: 7491e41e11f62b102a6fcd008644cac5e847724e21a60a151b745e86d555d896
154 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to Shopify domains hosting other PDFs, suggesting a link farm or SEO manipulation tactic. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=the+old+man+and+the+sea+pdf+file+download'. The ML classifier also strongly indicated maliciousness. While no scripts were explicitly extracted, the structure and heuristics point towards a malicious document designed to redirect users to potentially harmful 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=the+old+man+and+the+sea+pdf+file+download
    • http://files.laurieburtonart.com/uploads/1/3/0/7/130775350/pibosasagajen-xesinezipaz.pdf
    • http://files.conservingcentralindia.org/uploads/1/3/2/6/132695492/pimisimumefex_notaw_sobajelunovoxa_kirovipenujapo.pdf
    • http://files.littleladyboutique.shop/uploads/1/3/2/6/132682235/a73de171e855.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0435/2793/0011/files/xitavalazavo.pdf
    • https://cdn.shopify.com/s/files/1/0433/9941/3925/files/jolaboturevew.pdf
    • https://cdn.shopify.com/s/files/1/0434/0816/2974/files/80546188153.pdf
    • https://cdn.shopify.com/s/files/1/0430/3159/3113/files/kudesewomaruru.pdf
    • https://cdn.shopify.com/s/files/1/0438/3696/5029/files/mary_kay_compensation_plan.pdf
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/intel_centrino_advanced-_n_6205_driver.pdf
    • https://cdn.shopify.com/s/files/1/0436/4396/1494/files/37516834616.pdf
    • https://cdn.shopify.com/s/files/1/0435/4798/4026/files/20568306650.pdf
    • https://cdn.shopify.com/s/files/1/0430/6717/9162/files/nacionalidades_en_aleman.pdf
    • https://cdn.shopify.com/s/files/1/0430/9634/2695/files/27106357753.pdf
    • https://cdn.shopify.com/s/files/1/0430/3237/9545/files/15103113711.pdf
    • https://cdn.shopify.com/s/files/1/0429/1765/8780/files/oxford_dictionary_of_accounting_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/5544/7202/files/exercicios_sobre_balanceamento_de_equaes.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_off00005250.bin
153d8e962b8ec4f8dd345d1faecd18ef7b93f837815d85b8acfe83b11b3cc116		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5250 5224 bytes
font_01_sfnt_off00006403.bin
ddd1eb3e47d8844ec77d55a11f48480be14a0eefe6738a95cc5eee9b6332b14c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6403 11376 bytes

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