Malicious PDF — malware analysis report

Static analysis result for SHA-256 263c89fb6dd00d94…

MALICIOUS

PDF

40.7 KB Created: 2020-08-21 05:23:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6e6041ea59a57f71fe0824bda6b9847d SHA-1: 3592bc8f9906796a6dfc6dbea04a782964880746 SHA-256: 263c89fb6dd00d942a8ebe58eefa7f7afaab09c55319d2efeb6966c761bf24d4
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with multiple links pointing to shopify.com and other domains. One of the primary links, 'https://ttraff.cc/pify?keyword=candidate+pronunciation+guide', is identified as a malicious redirector. This suggests the document's purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing.

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=candidate+pronunciation+guide
    • http://files.roadtomisstexasusa.com/uploads/1/3/0/8/130814192/9033839.pdf
    • http://files.vibrantsoulful.com/uploads/1/3/0/9/130969576/rosegipeko.pdf
    • http://files.ammpurage.com/uploads/1/3/0/9/130969254/vumugemijutelo.pdf
    • https://cdn.shopify.com/s/files/1/0431/1767/4656/files/asa_flight_planner.pdf
    • https://cdn.shopify.com/s/files/1/0432/2613/6743/files/fedimimiruruna.pdf
    • https://cdn.shopify.com/s/files/1/0433/6710/4668/files/pozuworuwodalakepunaxujup.pdf
    • https://cdn.shopify.com/s/files/1/0438/5003/9446/files/all_apologies_chords.pdf
    • https://cdn.shopify.com/s/files/1/0449/2355/1899/files/pokemon_game_for_android_mobile.pdf
    • https://cdn.shopify.com/s/files/1/0435/6984/0283/files/93564599004.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kopamidije.pdf
    • https://cdn.shopify.com/s/files/1/0430/3765/5193/files/movawajobe.pdf
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/pigudaxopi.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_off0000615c.bin
e990bcd4c9bf28944625516f144711521431d575698289dff658fadc5e65ca36		 pdf-font-stream PDF embedded font (sfnt) at offset 0x615C 4936 bytes
font_01_sfnt_off0000722f.bin
35792d201cf48c8cb0e18b3ca0711cb02eefcf609563162ffc003edf4593f8d6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x722F 10504 bytes

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