Malicious PDF — malware analysis report

Static analysis result for SHA-256 d48bdae089b0d1a3…

MALICIOUS

PDF

42.8 KB Created: 2020-08-25 00:32:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a3171896027b0e85e9189c356d8a70a6 SHA-1: 9159870ebd0960f4dca87c0416a808db19e7d988 SHA-256: d48bdae089b0d1a36b441ee5286a54ce626bb5cd8c5b8a832e7f57a0784eac69
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=aimp+music+player+for+windows'. This indicates the document is designed to redirect users to potentially harmful sites. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute the malicious content. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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=aimp+music+player+for+windows
    • http://tazex.p3oriontopsecret.com/uploads/1/3/1/3/131380600/renedutos-penepag-dojuxezoguzij-niramifevaleso.pdf
    • http://files.annsmartmartin.com/uploads/1/3/2/6/132681315/wejebevepeze.pdf
    • https://cdn.shopify.com/s/files/1/0437/3682/6007/files/chicago_manual_of_style_citation_footnotes.pdf
    • https://cdn.shopify.com/s/files/1/0434/4945/0661/files/xukapax.pdf
    • https://cdn.shopify.com/s/files/1/0434/5610/2565/files/kigobobesarufutav.pdf
    • https://cdn.shopify.com/s/files/1/0439/5335/6955/files/the_overcrowded_barracoon.pdf
    • https://cdn.shopify.com/s/files/1/0435/5211/2804/files/franchising_for_dummies.pdf
    • https://cdn.shopify.com/s/files/1/0435/1829/6216/files/rejogujarepomapipefupiga.pdf
    • https://cdn.shopify.com/s/files/1/0462/3033/9735/files/bufovazikipesalofafudabin.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dagezaluvonanapukinuwit.pdf
    • https://cdn.shopify.com/s/files/1/0436/8993/5002/files/how_to_make_bookmarks_open_in.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_off00005de7.bin
de73e86ee82784a721dedea29df7f6e61f8b73536825c4ebb61f26b082dfa507		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DE7 5284 bytes
font_01_sfnt_off00006fd1.bin
4d1c1f283745c7d754662c90bdaaabc298a3ec6c55f71e8adcc5174ad968c6c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FD1 9652 bytes
font_02_sfnt_off000090d0.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x90D0 4324 bytes

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