Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dfbcb0f26ae2bdc…

MALICIOUS

PDF

44.8 KB Created: 2020-08-30 07:42:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cb3f5c8cf378f76aff5f018e5e6297e5 SHA-1: 8f720af8853ac6c14f584107a11236652fb01270 SHA-256: 3dfbcb0f26ae2bdc88a9ad1de7d1fa34f37b21456d37a6f912d4ac8418c401e5
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a direct link to a known malicious redirector, ttraff.ru. The document body, though heavily obfuscated, includes the same URL, suggesting the primary intent is to redirect the user to this malicious site. The ML classifier also strongly indicated maliciousness. No scripts were extracted, and the PDF structure itself did not reveal further malicious behavior beyond the embedded link.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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.ru/wix?keyword=trait+theories+most+accurately+predict+________
    • https://cdn.shopify.com/s/files/1/0431/1551/1968/files/pokemon_mystery_dungeon_gates_to_infinity_rom.pdf
    • https://cdn.shopify.com/s/files/1/0431/5014/7745/files/wejemidejelowakezegum.pdf
    • https://cdn.shopify.com/s/files/1/0429/2821/0073/files/89558479165.pdf
    • https://cdn.shopify.com/s/files/1/0437/0818/6792/files/easy_alto_sax_sheet_music.pdf
    • https://static.usrfiles.com/ugd/b8c837_903caf40da2c4745b178f218f357d188.pdf
    • https://static.usrfiles.com/ugd/b8c837_cd9af357b2694a81ad65a61be7d8105b.pdf
    • https://static.usrfiles.com/ugd/07625c_cffb6ce03b194ac3bf13da4e2e429727.pdf
    • https://static.usrfiles.com/ugd/b8c837_176043b66a5943edb306487a38132a78.pdf
    • https://static.usrfiles.com/ugd/ea5d7b_c178c193993647daa74364f799d5318a.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007008.bin
e6c938f0f29902b7b1f1feb8a12cda218816e4d4a04adfcf0930f9ad37489232		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7008 5428 bytes
font_01_sfnt_off0000826e.bin
d3071ba426c787a5471dd3f715dd961f17ee436cc17b01cc845da230c7e02b6d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x826E 10624 bytes

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