Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ee1f9eea6a4dce7…

MALICIOUS

PDF

42.8 KB Created: 2020-08-11 06:22:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ae7c7408b20ce1a69715a168e396e26e SHA-1: 959e6ff40fea1cc856e862a77141d139584a34c9 SHA-256: 3ee1f9eea6a4dce7f5e3bf73f288c61d864009cff1e2316aef086ffa8b82936c
150 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=merger+arbitrage+strategy+pdf', suggesting a lure to a malicious site disguised as a financial document. The presence of numerous PDF links and a malicious redirector indicates a likely attempt to drive traffic to malicious 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.cc/pify?keyword=merger+arbitrage+strategy+pdf
    • http://givifel.ambervalleylabourgroup.org.uk/uploads/1/3/1/4/131407164/sifodatizo.pdf
    • http://files.treatsicecreamparlour.com/uploads/1/3/0/8/130813821/8858676.pdf
    • http://files.blizzardpinball.com/uploads/1/3/2/8/132814900/959bc7174.pdf
    • https://cdn.shopify.com/s/files/1/0429/8991/2218/files/77480704191.pdf
    • https://cdn.shopify.com/s/files/1/0440/8170/9206/files/75573771483.pdf
    • https://cdn.shopify.com/s/files/1/0440/5788/6870/files/sunivafibura.pdf
    • https://cdn.shopify.com/s/files/1/0432/8924/7894/files/pathogenesis_of_aspergillosis.pdf
    • https://cdn.shopify.com/s/files/1/0438/1540/3677/files/14344005555.pdf
    • https://cdn.shopify.com/s/files/1/0430/7045/5965/files/depelumise.pdf
    • https://cdn.shopify.com/s/files/1/0431/6826/8456/files/69017312928.pdf
    • https://cdn.shopify.com/s/files/1/0429/6038/8259/files/34852151643.pdf
    • https://cdn.shopify.com/s/files/1/0439/3785/7691/files/agreement_format_between_two_parties.pdf
    • https://cdn.shopify.com/s/files/1/0431/5991/2610/files/tekonozofojazexupow.pdf
    • https://cdn.shopify.com/s/files/1/0432/3776/9383/files/8736083880.pdf
    • https://cdn.shopify.com/s/files/1/0432/9416/3109/files/adventist_church_heritage_award.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zobirunutopuwipigodilig.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_off000068e7.bin
ec4613366345ca8a866999b946aa72c7ba1b0c785cdaa73b03ae64e998e7185a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68E7 5424 bytes
font_01_sfnt_off00007b74.bin
9d42c3dfe47ab1b0ebd8eb8c04c1b4b1fb7712e8b47a11a6993d6a1397ba5af7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B74 10204 bytes

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