Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b05e1ae50ee31f7…

MALICIOUS

PDF

48.6 KB Created: 2020-08-15 08:07:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b1f17930809fdaed7f38404fb402b56b SHA-1: 273b3a4f5262e8b857cbe2955d55411fea0cc2e7 SHA-256: 2b05e1ae50ee31f7829e9e3856a81411d483f0ad2182aa70832c2370f1b8aa57
150 Risk Score

Malware Insights

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

This PDF document contains multiple embedded links, with a primary link redirecting to known malicious infrastructure at 'ttraff.ru'. The document body, though heavily obfuscated, appears to be a lure related to a 'Marvel future fight character building guide'. The presence of a link farm and the ML classifier's high confidence score indicate a malicious intent to redirect users to harmful content.

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.ru/pify?keyword=marvel+future+fight+character+building+guide
    • http://kowegoda.willardhopefest.com/uploads/1/3/1/3/131383483/soxiv.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dilos.pdf
    • https://cdn.shopify.com/s/files/1/0431/8062/1984/files/77853446906.pdf
    • https://cdn.shopify.com/s/files/1/0428/0903/2863/files/zijir.pdf
    • https://cdn.shopify.com/s/files/1/0432/5559/5172/files/lefiriloziwerur.pdf
    • https://cdn.shopify.com/s/files/1/0436/0614/7230/files/77713459008.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vemuvuferakodumi.pdf
    • https://cdn.shopify.com/s/files/1/0439/3956/1630/files/24041819106.pdf
    • https://cdn.shopify.com/s/files/1/0433/0923/6374/files/metejusedi.pdf
    • https://cdn.shopify.com/s/files/1/0430/8267/8433/files/69119695343.pdf
    • https://cdn.shopify.com/s/files/1/0437/6546/5245/files/candide_ebook.pdf
    • https://cdn.shopify.com/s/files/1/0434/5351/3880/files/birmingham_train_map.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_off000072e4.bin
a1dbdf089b2548720998d6c29d96282832e899cbf1315b7355f8104144dd2dc4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72E4 5312 bytes
font_01_sfnt_off000084f4.bin
5b3bb644c9ff2f83af174b4802c18dbb158d8c357d6a73096b67b1355d0a6ec0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84F4 15964 bytes

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