Malicious PDF — malware analysis report

Static analysis result for SHA-256 1475067eb1b94169…

MALICIOUS

PDF

38.7 KB Created: 2020-08-31 10:47:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 93955132b144a327f717a8182acfa211 SHA-1: 442c3c043d398728cdd094abc9470fe89665c5ac SHA-256: 1475067eb1b94169a2a84e9a6fec59d47275cb8184f9885ea3ea92b434cb5cd8
154 Risk Score

Malware Insights

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

The PDF contains a link farm with 15 external PDF links, many of which point to benign content. However, one critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.com/wix?keyword=jeu+pr%25C3%25A9fixe+suffixe+cycle+3'. This suggests an attempt to redirect users to malicious content, likely for phishing or malware distribution. No scripts were extracted, but the presence of embedded URLs and the link farm structure indicate a social engineering attempt.

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=jeu+pr%25C3%25A9fixe+suffixe+cycle+3
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static.usrfiles.com/ugd/edb4a7_3c5be84dfc234af491237ac22bb1415e.pdf
    • https://static.usrfiles.com/ugd/b8c837_5097ae9a06ab421aaeccb800d9fed630.pdf
    • https://static.usrfiles.com/ugd/b8c837_d2f364a5180b4aecae29aac87ddfbe16.pdf
    • https://static.usrfiles.com/ugd/136d07_34cc7c3cc9974fa8a4456dcedc587ef7.pdf
    • https://static.usrfiles.com/ugd/af0aa9_8f065b27dbab48a5b0c3a0025f306444.pdf
    • https://cdn.shopify.com/s/files/1/0433/4095/5803/files/jelonatamejituxuwot.pdf
    • https://cdn.shopify.com/s/files/1/0438/5128/4642/files/free_creative_resume_templates_word_file.pdf
    • https://cdn.shopify.com/s/files/1/0435/8511/0177/files/77452361935.pdf
    • https://cdn.shopify.com/s/files/1/0433/3155/1400/files/84630610106.pdf
    • https://static.usrfiles.com/ugd/0ebc1f_6a01b5a03b8146e88678dd83737a3f1f.pdf
    • https://static.usrfiles.com/ugd/fedf23_a195c654d56b46a4aef3fee84f262302.pdf
    • https://static.usrfiles.com/ugd/353d00_8c35e6e73b504435a5c4637ee4d193e7.pdf
    • https://static.usrfiles.com/ugd/b8c837_667933dfe85642a585d3573aa8fc227a.pdf
    • https://static.usrfiles.com/ugd/b8c837_42246c1f7e694986bcaaca0ab1f366a2.pdf
    • https://static.usrfiles.com/ugd/374ce0_c2a3ca0cdd27441ba454a139cae3bcf7.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000054e7.bin
eb902c08350b36ce0eeb320e41209c66e5ba68aa80dbd7bc667060ac5e081540		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54E7 5264 bytes
font_01_sfnt_off000066b1.bin
3d245f270cf22c9bf18bbfedc0d138b58e4797942683b6e0defb3b1de9309a93		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66B1 11584 bytes

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