Malicious PDF — malware analysis report

Static analysis result for SHA-256 7345edb01a5f951e…

MALICIOUS

PDF

42.0 KB Created: 2020-08-24 10:46:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2ec3fd176ed64aedc81d9a25171489c6 SHA-1: 0e3cb213403fb7ded55497e6cce45001756e19b5 SHA-256: 7345edb01a5f951e5f9a68a76786987f18e9616b60f22ab915e58e51e19b4dc0
154 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and heuristics indicate it contains a malicious redirector link and a large number of external PDF links, suggesting a link farm or SEO manipulation tactic. The embedded URLs, particularly the one pointing to 'ttraff.cc', are likely intended to lead users to malicious content. No scripts were extracted, but the presence of numerous links suggests an attempt to lure users to external resources.

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.cc/pify?keyword=arq+movie++hd In PDF document text
    • http://files.madisonstmedical.com/uploads/1/3/1/8/131871467/6828521.pdfIn PDF document text
    • http://files.kitchenpsycho.com/uploads/1/3/1/6/131606092/8920558.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0982/6213/files/83735906626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5911/8229/files/dreamplan_home_design_software.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9623/4400/files/bofun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/7352/3112/files/headway_elementary_workbook_vk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/7141/4948/files/cavernous_transformation_radiopaedia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1543/7468/files/33590375089.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4959/1718/files/54994989554.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/8466/9088/files/kotuluwejatuvulagixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8148/9829/files/93067539016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2100/9053/files/desowukojomewepig.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000677c.bin
2f0fe5496f64d462e337aeb9d8c7e5b3178d8118182dcc8b740d074babb01cef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x677C 4820 bytes
font_01_sfnt_off000077bc.bin
b1d1e061eb628dded517994693330ba1ea74534a587dccf49301631fd4227f84		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77BC 10584 bytes

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