Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e6a604af3a6825c…

MALICIOUS

PDF

45.7 KB Created: 2020-09-01 09:53:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0380ffb68946a965df1617f48e7c7398 SHA-1: 3944b23476a1abc35de293565d81442ebbc681a2 SHA-256: 6e6a604af3a6825ce2fa0185dfd4fc5a272ea05ef3114e01632ef454f7f0c93b
154 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious domain, likely as part of a phishing or scam campaign. The document body, though partially corrupted, contains text related to 'attractive menu bar templates' and a URL that aligns with the heuristic findings of a malicious redirector and a link farm. No scripts were extracted, but the presence of malicious links suggests an attempt to redirect the user to a harmful site.

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.me/pify?keyword=attractive+menu+bar+templates+in+css+free
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://static.usrfiles.com/ugd/b8c837_7d9c1b7c5fdc412f8793aac7ea0c75cd.pdf
    • https://static.usrfiles.com/ugd/b8c837_7e02755ea7f64cb2ba3cd4a7f15fa134.pdf
    • https://static.usrfiles.com/ugd/33a16d_3fe2fe7aeb814ca0b34c1122fe691dda.pdf
    • https://static.usrfiles.com/ugd/0d9a50_6c2d26be0252451d9c2a8c83dae6bb02.pdf
    • https://static.usrfiles.com/ugd/63022f_92cc84e290b84bea94ab426c4ab5cc28.pdf
    • https://static.usrfiles.com/ugd/b8c837_a4abdd563b084907801b7395f72b7dc4.pdf
    • https://static.usrfiles.com/ugd/30e015_dc4238cecf09417d8d281c3a47644c73.pdf
    • https://static.usrfiles.com/ugd/d4a9d6_16f93002e94747189f21d00695320407.pdf
    • https://static.usrfiles.com/ugd/cfa91a_bfcb1b986d984a22b8a98d4f53654d4b.pdf
    • https://static.usrfiles.com/ugd/7ff653_44cb0d2dea9943eb801734bf0408a044.pdf
    • https://cdn.shopify.com/s/files/1/0431/7485/4812/files/barney_s_musical_scrapbook.pdf
    • https://cdn.shopify.com/s/files/1/0436/8983/6697/files/90395602415.pdf
    • https://cdn.shopify.com/s/files/1/0459/8661/1357/files/97857887392.pdf
    • https://cdn.shopify.com/s/files/1/0431/7252/8292/files/16816737952.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_off0000677c.bin
154cc845d56dc56969da6c337f3485774918666f61dff589a02277f3a7abe8d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x677C 5124 bytes
font_01_sfnt_off000078c7.bin
5de01130d00f440f7878373faccf475f61285b475d55010c7c9b7a5bc640fd80		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78C7 10224 bytes
font_02_sfnt_off00009b95.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9B95 4324 bytes

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