Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9202cb264283e59…

MALICIOUS

PDF

49.8 KB Created: 2020-08-17 16:56:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f216702e32f1fe90a0e81e4f7e83947f SHA-1: 0a729b352c94d7c2c2db79e07b8ace1c18e1ce39 SHA-256: a9202cb264283e59f2ad8746085fd4e86c77c32cc507787cc60f0f2326c159d6
130 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, which points to 'https://ttraff.ru/pify?keyword=aashiqui+1990+movie+free++for+mobile'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on shopify.com. The document body contains a call-to-action phrase, suggesting a lure to click the malicious link. The primary attack pattern involves redirecting the user to malicious infrastructure.

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=aashiqui+1990+movie+free++for+mobile
    • http://files.bodyvelocitybootcamp.com/uploads/1/3/1/4/131452806/xojinulubi.pdf
    • http://files.katascuba.com/uploads/1/3/1/4/131483253/5349126.pdf
    • http://files.authormariebenedict.com/uploads/1/3/0/8/130813770/d8fdf.pdf
    • http://files.tutorwithalice.com/uploads/1/3/1/4/131406864/8860156.pdf
    • http://wufuteb.hemamikkilineni.com/uploads/1/3/0/8/130873951/barukobaxubo.pdf
    • https://cdn.shopify.com/s/files/1/0428/8898/6787/files/27565666534.pdf
    • https://cdn.shopify.com/s/files/1/0427/4556/1254/files/70604801743.pdf
    • https://cdn.shopify.com/s/files/1/0433/4023/4902/files/zemomidedoti.pdf
    • https://cdn.shopify.com/s/files/1/0433/8984/5667/files/33684852507.pdf
    • https://cdn.shopify.com/s/files/1/0427/8799/5807/files/average_velocity_and_instantaneous_velocity.pdf
    • https://cdn.shopify.com/s/files/1/0432/8253/0472/files/tekuzovi.pdf
    • https://cdn.shopify.com/s/files/1/0434/1094/8254/files/21210086544.pdf
    • https://cdn.shopify.com/s/files/1/0439/0843/2027/files/35106040861.pdf
    • https://cdn.shopify.com/s/files/1/0433/9780/8285/files/figufu.pdf
    • https://cdn.shopify.com/s/files/1/0433/9387/6118/files/83441328988.pdf
    • https://cdn.shopify.com/s/files/1/0438/6127/8885/files/android_music_video_app.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_off000064a1.bin
5d92931eeb43a1b1bbca84d1dca0416260c04eec1f8f562cfcd0bc0256e082ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64A1 5672 bytes
font_01_sfnt_off000077c3.bin
1f756b46481ac718095810e133e155ec1caf818687d25c20e8b002f727d713c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77C3 2116 bytes
font_02_sfnt_off0000816f.bin
54a9af6f18d731c4f1f6f8de30c0577215dfa5898725d1a4c0e9e1f0b4e9ec95		 pdf-font-stream PDF embedded font (sfnt) at offset 0x816F 10072 bytes
font_03_sfnt_off0000a431.bin
539e75637df9a353fc9cfce67ff0246c06028efd6e8024ae9859b6bd871f433a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA431 16180 bytes

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