Malicious PDF — malware analysis report

Static analysis result for SHA-256 26365edb77f26daf…

MALICIOUS

PDF

47.0 KB Created: 2020-08-02 19:12:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79514329e39b63a905912bcef0c02f0b SHA-1: a794c9e3e54092e590b9b145d446e376c954eb0e SHA-256: 26365edb77f26daf8d8b762e31d7b7ad651f2c74db91bcc8efb0fd555c14d746
128 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector, indicating an attempt to lead the user to malicious content. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM strongly suggest this malicious intent. The embedded URL and the presence of a 'download button' lure further support this. The document body, though heavily obfuscated, contains the malicious URL.

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=php+uploading+script
    • http://files.jrscloset.com/uploads/1/3/1/8/131871980/xavavixafol-sidago.pdf
    • http://files.kathrynmccawley.com/uploads/1/3/1/3/131380107/7fc668cd4.pdf
    • http://files.nurturedbirthservices.com/uploads/1/3/0/9/130969545/8e3366b0d399.pdf
    • https://cdn.shopify.com/s/files/1/0438/4777/8469/files/gubaki.pdf
    • https://cdn.shopify.com/s/files/1/0432/8423/4396/files/juseravafegeradobaterege.pdf
    • https://cdn.shopify.com/s/files/1/0432/2587/4600/files/mekamutixe.pdf
    • https://cdn.shopify.com/s/files/1/0430/8012/2532/files/85626723715.pdf
    • https://cdn.shopify.com/s/files/1/0432/3062/5950/files/tabifurotemav.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bafewemuwidizisaj.pdf
    • https://cdn.shopify.com/s/files/1/0437/7945/7175/files/campbell_biology_10th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0428/1024/5279/files/pressure_washer_costco.pdf
    • https://cdn.shopify.com/s/files/1/0432/3013/4427/files/37325313857.pdf
    • https://cdn.shopify.com/s/files/1/0439/3612/0990/files/kinekegeke.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nuvororixepexovi.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_off00006dac.bin
5409db1b2691c3a74ee7185fa9a8af31c4718a8c537f87532c0e87b575f5289e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DAC 5336 bytes
font_01_sfnt_off00007fcb.bin
d6100de55a7ba18e16f10c2e4f5ad5e60bb68613eef14b84cedd1a5226b828e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FCB 15076 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.