Malicious PDF — malware analysis report

Static analysis result for SHA-256 545fc1b653102b27…

MALICIOUS

PDF

44.7 KB Created: 2020-08-06 21:07:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a9388e601561c263e2e629fdfd07c510 SHA-1: c0dcbad519d09c510e3c69087c6cf420e6d25284 SHA-256: 545fc1b653102b27baf664175cfbfa03f37012b5036983fc69ee2dfa566d9d87
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains multiple embedded links, with one identified as a malicious redirector pointing to 'ttraff.com'. This suggests the document is designed to trick users into visiting malicious sites. The presence of a large number of external PDF links, many hosted on Shopify, indicates a potential link farm for SEO manipulation or to obscure the final malicious destination. No scripts were extracted from this sample.

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.com/pify?keyword=berliner+platz+2+neu+glossar+griechisch+pdf
    • http://files.wxhercules.com/uploads/1/3/0/9/130969238/lavob_degumosena.pdf
    • http://files.sequoyahspo.org/uploads/1/3/0/7/130776416/neliwe.pdf
    • http://renukaboj.nourishedearthapothecary.com/uploads/1/3/0/7/130738732/f29bf3d322392e.pdf
    • http://files.hawaiicreativemedia.org/uploads/1/3/0/8/130874582/a95f036bbd.pdf
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/34424419047.pdf
    • https://cdn.shopify.com/s/files/1/0431/9979/1268/files/reddit_best_torrent_site.pdf
    • https://cdn.shopify.com/s/files/1/0434/0760/5923/files/cities_in_usa.pdf
    • https://cdn.shopify.com/s/files/1/0432/1381/5966/files/mejoxobafalotisake.pdf
    • https://cdn.shopify.com/s/files/1/0430/1471/7597/files/bapopubibejo.pdf
    • https://cdn.shopify.com/s/files/1/0433/5039/2984/files/zupifedok.pdf
    • https://cdn.shopify.com/s/files/1/0436/2888/8227/files/32203612419.pdf
    • https://cdn.shopify.com/s/files/1/0434/9231/1206/files/pozunafon.pdf
    • https://cdn.shopify.com/s/files/1/0448/4546/5762/files/mongoose_bulk_insert.pdf
    • https://cdn.shopify.com/s/files/1/0430/3293/6605/files/tosebinuvamexuzofamefajip.pdf
    • https://cdn.shopify.com/s/files/1/0429/6690/9081/files/ibomb_companion_app.pdf
    • https://cdn.shopify.com/s/files/1/0429/3191/2857/files/85353932154.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c88.bin
d59a641171436689b60bb25d61626a51133c203ce99ae7e611c9e08a16dd4ad9
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C88 5648 bytes
font_01_sfnt_off00007fc7.bin
cc9ef1a47e8197582676f36a12ec4ca75a17d8046a327fda754df25eaf8d6639
pdf-font-stream PDF embedded font (sfnt) at offset 0x7FC7 11064 bytes