Malicious PDF — malware analysis report

Static analysis result for SHA-256 1317258415af59f0…

MALICIOUS

PDF

44.9 KB Created: 2020-08-29 21:23:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1de6349d0b40a3ae88cddbb54774b517 SHA-1: 11f1dabe32baa02ff293a59e5c117d9f2325e377 SHA-256: 1317258415af59f0b9297210f91aecc1735ee77e4d1ef2bb6759cad45e2ccaea
154 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for linking to a known malicious redirector, specifically 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL, suggesting an attempt to lure users to a malicious site under the guise of a book download. The ML classifier also strongly indicated maliciousness.

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/wix?keyword=moste+potente+potions+book
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://static.usrfiles.com/ugd/10b11f_a3b8040c6ce447e99e8f1b6d7491b082.pdf
    • https://static.usrfiles.com/ugd/b8c837_256face7412840ebbca2064dbaf5c13f.pdf
    • https://static.usrfiles.com/ugd/b8c837_b06b5aaf1a4144489b5c9a0afeb24d87.pdf
    • https://static.usrfiles.com/ugd/2f3ac6_4aa4776670a54d6982fdc37341f1c6ac.pdf
    • https://static.usrfiles.com/ugd/cc03df_d04ef712276e45028ddd164cd5b65e20.pdf
    • https://static.usrfiles.com/ugd/b8c837_a107a1d0827641bd97289a95c729bf0a.pdf
    • https://static.usrfiles.com/ugd/b8c837_44a1880fd20142babd4d7fba13e2c0b5.pdf
    • https://cdn.shopify.com/s/files/1/0434/7972/8281/files/crack_ielts_in_a_flash_speaking_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/2250/0518/files/kirupawem.pdf
    • https://cdn.shopify.com/s/files/1/0434/5892/0605/files/81039290584.pdf
    • https://cdn.shopify.com/s/files/1/0433/4790/2629/files/82829907835.pdf
    • https://static.usrfiles.com/ugd/b8c837_eede28d44e994ed8ba76f8573931113b.pdf
    • https://static.usrfiles.com/ugd/6c032c_b4e11828dd2e4913af34257c35a85f45.pdf
    • https://static.usrfiles.com/ugd/b8c837_2968bec767fc414990ff7115e05a105f.pdf
    • https://static.usrfiles.com/ugd/b8c837_c4c98390795049f68859e338efc7fd0d.pdf
    • https://static.usrfiles.com/ugd/b8c837_356230d3c3694ca8af539d8cba9a1ce1.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006469.bin
191cfaf99a48e661bb600ee55627e28eed10cff0a100dc2f4cdccd5f82b21409		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6469 4472 bytes
font_01_sfnt_off000073a9.bin
26943eae3ff9abc4345c8093e1f45b4b98eb0c6077b87ea2f93b5f0404aab55f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73A9 10756 bytes
font_02_sfnt_off0000985d.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x985D 4324 bytes

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