Malicious PDF — malware analysis report

Static analysis result for SHA-256 046f0fbf010d7745…

MALICIOUS

PDF

44.9 KB Created: 2020-08-30 03:29:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8b68e10df0205bb5710325438ab58d2d SHA-1: eb88ce83b052d42b9baca59fbea1dc6d943f315e SHA-256: 046f0fbf010d7745f50a70163926fe83d98cb2bf2013d4ed061d4d0f649cd476
154 Risk Score

Malware Insights

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

The PDF contains embedded links, with one specifically pointing to a known malicious redirector infrastructure. The document body text also includes the malicious URL and related keywords, suggesting a phishing or scam attempt. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm designed to attract search engine traffic, likely to obscure the malicious redirector. No scripts were extracted from this sample.

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=servicenow+admin+certification+dumps
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0435/7206/8520/files/rokinesadujufikowivupu.pdf
    • https://cdn.shopify.com/s/files/1/0431/5037/7126/files/diccionario_de_americanismos.pdf
    • https://cdn.shopify.com/s/files/1/0439/7416/4638/files/jelavuzamifonoluzuxezenu.pdf
    • https://cdn.shopify.com/s/files/1/0428/7463/4403/files/cctv_camera_types.pdf
    • https://cdn.shopify.com/s/files/1/0429/7352/8213/files/australian_visa_application_form_1419.pdf
    • https://cdn.shopify.com/s/files/1/0431/4172/6370/files/41421363307.pdf
    • https://cdn.shopify.com/s/files/1/0461/9085/4294/files/fagipup.pdf
    • https://cdn.shopify.com/s/files/1/0460/3310/9156/files/86633643940.pdf
    • https://static.usrfiles.com/ugd/c0b427_06b14a22047644ae848c5f30b600de1b.pdf
    • https://static.usrfiles.com/ugd/7f46b5_c79e8c675a6b4d2bba094fe8a9876893.pdf
    • https://static.usrfiles.com/ugd/e4a001_1a1d411ebd714913bafea5e6dcf02142.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_off00005bc9.bin
2866a996d310d777a85a9bbe16cd7c48795b9d04e956d8d56725a49c56e84654
pdf-font-stream PDF embedded font (sfnt) at offset 0x5BC9 5404 bytes
font_01_sfnt_off00006e1e.bin
a436cb9fec865ffedff6fc4d2c60830cb8595cc89114582661f1c0bb682e04a6
pdf-font-stream PDF embedded font (sfnt) at offset 0x6E1E 13500 bytes
font_02_sfnt_off000098c9.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0x98C9 4324 bytes