Malicious PDF — malware analysis report

Static analysis result for SHA-256 050a020475fec4a4…

MALICIOUS

PDF

43.9 KB Created: 2020-08-29 06:14:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 598aa38cb849f8c72fa421287f890499 SHA-1: 4dcc7fafaed553d34b1b2a59d1a06c17d5f2a6f4 SHA-256: 050a020475fec4a499063984116eb19e0b1154b3529eceb523fe38ec5e565a07
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm or SEO spam operation. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.com/wix?keyword=practicing+the+art+of+leadership+4th+edition+pdf'. The document body, though heavily obfuscated, contains this URL and other Shopify URLs, indicating an attempt to drive traffic to malicious infrastructure under the guise of providing book 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/wix?keyword=practicing+the+art+of+leadership+4th+edition+pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0431/8678/2371/files/bollywood_hd_movie_free_website.pdf
    • https://cdn.shopify.com/s/files/1/0435/4870/4917/files/22533665448.pdf
    • https://cdn.shopify.com/s/files/1/0429/0406/0071/files/download_brunner_and_suddarth_13th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0432/9373/7118/files/biochemistry_for_medical_students_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/7812/2649/files/android_vs_ios_11.pdf
    • https://cdn.shopify.com/s/files/1/0433/9076/3175/files/73599837894.pdf
    • https://static.usrfiles.com/ugd/b8c837_0dd76032c2fb4879846c6c50cf3f39df.pdf
    • https://static.usrfiles.com/ugd/b8c837_99ad1b897190417794d4720556388221.pdf
    • https://static.usrfiles.com/ugd/b8c837_06e8a627ee03465bbc94196d98c9287b.pdf
    • https://static.usrfiles.com/ugd/b8c837_549668fe74c84a5fa69fdb3cada5376a.pdf
    • https://static.usrfiles.com/ugd/b8c837_6a66a358fb194abda97b10b1206df8a2.pdf
    • https://static.usrfiles.com/ugd/b8c837_99c392296dbf4d24ac4d164e98b1cf7d.pdf
    • https://static.usrfiles.com/ugd/b8c837_3760f25467aa43bd96de840d02925457.pdf
    • https://static.usrfiles.com/ugd/b8c837_c7d821a977914bf8a111a18597d4b4af.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_off000057c0.bin
9cca97a2beb6e04257b19ed81d2627b4887cdf44f8dadd098a39afb700b5182a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57C0 5292 bytes
font_01_sfnt_off000069ae.bin
e4c023967b54d81faae5c451a558ab59676d4d7b540063c942baaf0ead608ee4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69AE 13752 bytes
font_02_sfnt_off0000949b.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x949B 4324 bytes

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