Malicious PDF — malware analysis report

Static analysis result for SHA-256 59fcd7ef9bb29760…

MALICIOUS

PDF

39.8 KB Created: 2020-08-04 16:17:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 603f36f1bfd63016e4427d772c561f10 SHA-1: b4a9c385e8f792440737bc81cbbdb718cf2eb6ed SHA-256: 59fcd7ef9bb29760273e071f1d9bc12480c8d373cfc8cf7afd82c25413de5310
128 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though malformed, suggests a lure related to 'Nios admission form 2020 pdf', and the presence of a visual download button further supports a deceptive intent. The primary malicious URL identified is https://ttraff.ru/pify?keyword=nios+admission+form+2020+pdf.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=nios+admission+form+2020+pdf
    • http://files.bestofthewestmoving.com/uploads/1/3/0/7/130776864/1905575.pdf
    • http://files.pit-p.com/uploads/1/3/1/3/131384635/sizubedutoga.pdf
    • http://files.clairefrancessullivan.com/uploads/1/3/2/6/132695546/165993.pdf
    • https://cdn.shopify.com/s/files/1/0427/6482/8838/files/volud.pdf
    • https://cdn.shopify.com/s/files/1/0431/5978/1538/files/fegir.pdf
    • https://cdn.shopify.com/s/files/1/0438/4178/1920/files/28697693109.pdf
    • https://cdn.shopify.com/s/files/1/0431/6263/2360/files/83965318775.pdf
    • https://cdn.shopify.com/s/files/1/0432/4474/8950/files/77817211748.pdf
    • https://cdn.shopify.com/s/files/1/0430/1747/0101/files/pokadenojiposik.pdf
    • https://cdn.shopify.com/s/files/1/0431/6410/6908/files/88960699936.pdf
    • https://cdn.shopify.com/s/files/1/0439/5529/0270/files/zugidesidun.pdf
    • https://cdn.shopify.com/s/files/1/0428/9570/4227/files/mathematics_for_economists_carl_p_simon_lawrence_blume.pdf
    • https://cdn.shopify.com/s/files/1/0432/0821/2638/files/vimizagirosusenuwimokefe.pdf
    • https://cdn.shopify.com/s/files/1/0427/7708/4070/files/xisigokasowojibada.pdf
    • https://cdn.shopify.com/s/files/1/0438/4551/7469/files/28792456545.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_off00005df2.bin
7a79d016b88ba614c9261e2edb4d8c78b90dee0acbf1df4263078dde4f09166f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DF2 5396 bytes
font_01_sfnt_off00007038.bin
26bc2737e5f128990d351bc92711d951d719ff57269fa89fba5365c6dbf0dcfb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7038 10052 bytes

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