Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1ff6d4d6c37c879…

MALICIOUS

PDF

44.5 KB Created: 2020-08-29 19:33:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 19c7b714cab85cb1d7ad2db68777b38c SHA-1: b755ca284b7dc7a5eaab5648853351eb07c7c8c7 SHA-256: e1ff6d4d6c37c879b60e3fd0525c8872e2db7c7b74b6b752c96acdac52ae8ac2
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in Systems T1059.001 PowerShell

The PDF document contains numerous embedded URLs, with a significant portion forming a link farm hosted on Shopify. One of the embedded URLs, 'https://ttraff.club/wix?keyword=pnp+santa+2015', is identified as a known malicious redirector. This suggests the document is designed to lure users to malicious infrastructure, likely for further exploitation or phishing. The ML classifier strongly supports the malicious nature of this PDF.

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.club/wix?keyword=pnp+santa+2015
    • https://cdn.shopify.com/s/files/1/0430/9752/2329/files/tifobotologeki.pdf
    • https://cdn.shopify.com/s/files/1/0436/2846/2233/files/battle_trip_seventeen_yogyakarta.pdf
    • https://cdn.shopify.com/s/files/1/0440/1243/7662/files/wijijuzuxogutoxejololaziv.pdf
    • https://cdn.shopify.com/s/files/1/0434/0609/8597/files/understanding_comics_full.pdf
    • https://cdn.shopify.com/s/files/1/0438/2257/9869/files/sdn_radiation_oncology_interview_spreadsheet.pdf
    • https://cdn.shopify.com/s/files/1/0435/2219/5608/files/mapefobeselabazuwosini.pdf
    • https://cdn.shopify.com/s/files/1/0432/5575/9011/files/behaviorist_theories_of_learning.pdf
    • https://cdn.shopify.com/s/files/1/0432/8246/4928/files/31207283094.pdf
    • https://cdn.shopify.com/s/files/1/0432/2738/1920/files/80383163531.pdf
    • https://cdn.shopify.com/s/files/1/0439/1315/0632/files/past_perfect_continuous_tense_examples_sentences.pdf
    • https://cdn.shopify.com/s/files/1/0431/0636/9697/files/watching_american_pie_2_online.pdf
    • https://cdn.shopify.com/s/files/1/0460/3527/1844/files/gesafodedariberu.pdf
    • https://cdn.shopify.com/s/files/1/0427/5824/2470/files/31728449884.pdf
    • https://static.usrfiles.com/ugd/5de1df_3d4177c6ce374357a55bd810e1b566f1.pdf
    • https://static.usrfiles.com/ugd/63d3ad_ff516b5555464bc193b29125c6ce4d85.pdf
    • https://static.usrfiles.com/ugd/b8c837_5ebbf8250bd9413c8ee89fee0159f020.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062cf.bin
0fe64460708685729098f75c15863788e0b010905b865239700bc9a726c4cffd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62CF 4648 bytes
font_01_sfnt_off0000728d.bin
4ab4ba7cb3c169c4b11215a754f1bb917df24f830a9f503b3e872489ba0951cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x728D 10744 bytes
font_02_sfnt_off00009735.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9735 4324 bytes

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