Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcd335872f236dbb…

MALICIOUS

PDF

54.7 KB Created: 2020-08-31 08:59:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a110eb89825f7516f7c1d178662eed36 SHA-1: ad8ad9b9cea56150937c8a8ae478e5be39fedb6a SHA-256: bcd335872f236dbb7b00f7a73eafe79973dad1d7f235d5c2cd23e723f09385b4
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF document contains a malicious redirector link disguised as game cheats. The link leads to 'ttraff.ru', which is flagged as a malicious redirector. The document's content and the presence of numerous external links suggest a phishing or scam attempt to drive traffic to malicious infrastructure.

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/wix?keyword=turok+n64+cheats
    • https://cdn.shopify.com/s/files/1/0435/5181/7883/files/fulusamevogaxoranoki.pdf
    • https://cdn.shopify.com/s/files/1/0434/3064/1826/files/rabubukilu.pdf
    • https://cdn.shopify.com/s/files/1/0430/9978/3319/files/woxexulefaxavapegutema.pdf
    • https://cdn.shopify.com/s/files/1/0434/1222/6202/files/vuvejogogivolukotepar.pdf
    • https://cdn.shopify.com/s/files/1/0429/4141/5587/files/nomomofoxu.pdf
    • https://static.usrfiles.com/ugd/e1d12c_6341f600e27a4cb288713d4f3f148a7f.pdf
    • https://static.usrfiles.com/ugd/b8c837_eaf3340ce393431a8cf9bcce220e30dd.pdf
    • https://static.usrfiles.com/ugd/b8c837_9c5f60f4ae5f4bd284098d999c42e049.pdf
    • https://static.usrfiles.com/ugd/0ad6c7_0525a745b69e4db28f4fe131c7dde9c6.pdf
    • https://static.usrfiles.com/ugd/b4f0c6_a1c8d09769874de29ea36c1144f78194.pdf
    • https://static.usrfiles.com/ugd/b8c837_dac046756b5645e0902e25a83b11bb75.pdf
    • https://static.usrfiles.com/ugd/ee4a13_34c50de43f0a4dfd8f2020c0c5e59637.pdf
    • https://static.usrfiles.com/ugd/b7ab08_610c7e0025384bc3a14a7fd1e3724815.pdf
    • https://static.usrfiles.com/ugd/ae059d_1c61fd3bda964ad596b528a585066fdd.pdf
    • https://static.usrfiles.com/ugd/74e905_17a901656d96437b8d82fcd385814abe.pdf
    • https://static.usrfiles.com/ugd/b8c837_313294f36f494534b0edf1813c446110.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_off0000958d.bin
acae6be3f41bd2c9a47b42f0aef71420cd7e7ed3376d99cc87104dda7a9bde36		 pdf-font-stream PDF embedded font (sfnt) at offset 0x958D 5112 bytes
font_01_sfnt_off0000a6ed.bin
5057f259d3320a830d9fcb59bacc1b38f9d1fe0c4c846a3d695c489904750d12		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA6ED 11872 bytes

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