Malicious PDF — malware analysis report

Static analysis result for SHA-256 2827cc1d61d1fd3a…

MALICIOUS

PDF

41.7 KB Created: 2020-08-02 10:10:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a2138e1f94b563000a68fb55172d68d5 SHA-1: d683df3340f25dd134a83959d114040aab534ffe SHA-256: 2827cc1d61d1fd3aa134c97e8888024b2fe772fcf1b4235f08e421303ecea272
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a significant number of embedded links, many of which point to a redirector service. The document body text, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=action+replay+dsi+software', which is flagged as a malicious redirector. This suggests the document is designed to lead users to malicious content, likely a phishing or malware download site.

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=action+replay+dsi+software
    • http://files.americanpolicenews.com/uploads/1/3/1/4/131410094/d8462e11bc9434f.pdf
    • http://files.thebostonbridge.com/uploads/1/3/0/7/130738918/raditisejepat_jezatewexiboraw.pdf
    • http://files.dadsprimitiveworkbench.com/uploads/1/3/0/7/130776499/1116641.pdf
    • http://files.ebonydeecheyne.com/uploads/1/3/0/7/130775583/boxexoxalulenez-zifowozujo-jatimajijoko-xebobenin.pdf
    • https://cdn.shopify.com/s/files/1/0430/4365/1741/files/zetuzotonozapamorova.pdf
    • https://cdn.shopify.com/s/files/1/0433/9341/7367/files/61175036587.pdf
    • https://cdn.shopify.com/s/files/1/0431/9353/2573/files/paworenapapuxatiw.pdf
    • https://cdn.shopify.com/s/files/1/0437/7939/1646/files/esl_classroom_management_tips_and_tricks_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0432/0614/8255/files/21882837033.pdf
    • https://cdn.shopify.com/s/files/1/0434/5053/2001/files/lodelovodubetofe.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/6219719719.pdf
    • https://cdn.shopify.com/s/files/1/0430/5967/5293/files/39920900060.pdf
    • https://cdn.shopify.com/s/files/1/0432/3606/5438/files/baxobutaber.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xazijejizamoketabuguta.pdf
    • https://cdn.shopify.com/s/files/1/0431/8180/1629/files/2895381690.pdf
    • https://cdn.shopify.com/s/files/1/0438/3821/0205/files/wiseludugopawole.pdf
    • https://cdn.shopify.com/s/files/1/0432/3390/2760/files/42658658636.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004c19.bin
6b1886100909a5777bb30fc7b7be00bba8ed48ad5f5b392b7a0cb4783a0739ac
pdf-font-stream PDF embedded font (sfnt) at offset 0x4C19 3016 bytes
font_01_sfnt_off000056d3.bin
8c7ccd66f91147a34cd5cddcde6d2a87876c3eb181a9a7b74cdeb64aa30b9ccc
pdf-font-stream PDF embedded font (sfnt) at offset 0x56D3 5120 bytes
font_02_sfnt_off00006855.bin
d19123e17c76ebaa91fbc1a3804a29528fc8537daf11f1347937c8c411b0e553
pdf-font-stream PDF embedded font (sfnt) at offset 0x6855 10184 bytes
font_03_sfnt_off00008b4b.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x8B4B 4324 bytes