Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e2c60ea00875145…

MALICIOUS

PDF

45.0 KB Created: 2020-08-12 13:04:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 67fbc15ec89881ebc01113d91c6d8a56 SHA-1: 273faf75848f05aa47e2cda611f0f6846cac1968 SHA-256: 4e2c60ea00875145e4fc6bd334379bcf8e3727276a056196196cd6edafaaebe2
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating a link to a known malicious redirector. The document body, though partially corrupted, includes text suggesting a lure related to academic performance, and the primary malicious URL is 'https://ttraff.cc/pify?keyword=effects+of+cyberbullying+on+academic+performance+pdf'. This suggests the document is designed to trick users into clicking the malicious link, likely for phishing or malware distribution.

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=effects+of+cyberbullying+on+academic+performance+pdf
    • http://files.ravenlandrecords.com/uploads/1/3/1/4/131438011/23cd8909a14345b.pdf
    • http://jomojul.dammannfarms.com/uploads/1/3/1/6/131606345/baresunitozapajutaze.pdf
    • http://files.fbcphilipsburg.com/uploads/1/3/1/4/131407102/jakuzopeb.pdf
    • https://cdn.shopify.com/s/files/1/0450/3722/4094/files/budujokipa.pdf
    • https://cdn.shopify.com/s/files/1/0436/7355/1001/files/arduino_pulse_width_modulation.pdf
    • https://cdn.shopify.com/s/files/1/0432/4166/8770/files/73534652719.pdf
    • https://cdn.shopify.com/s/files/1/0449/2309/3147/files/remington_gun_safe.pdf
    • https://cdn.shopify.com/s/files/1/0430/9244/3303/files/49893682365.pdf
    • https://cdn.shopify.com/s/files/1/0431/3802/3586/files/76127451108.pdf
    • https://cdn.shopify.com/s/files/1/0429/7608/4117/files/basketball_scouting_report_template.pdf
    • https://cdn.shopify.com/s/files/1/0430/7088/1946/files/611891402.pdf
    • https://cdn.shopify.com/s/files/1/0432/8531/5737/files/xunuloguvikofimiwirepadiw.pdf
    • https://cdn.shopify.com/s/files/1/0429/0645/2131/files/cctv_camera_catalogue.pdf
    • https://cdn.shopify.com/s/files/1/0445/3544/7711/files/estadistica_descriptiva_e_inferencial_libro.pdf
    • https://cdn.shopify.com/s/files/1/0434/5528/3366/files/wovuzufeximawekulogiro.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_off00006eb7.bin
8312c60e7fa3977e28ea605a1a1c415042c7620d4b91d075eb8bcd3a7a7e7903		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EB7 5676 bytes
font_01_sfnt_off000081f1.bin
db20af25a6b4fcaa50974e3f69b7c1fd2c6f256964b3b5a049005eafac442c2b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81F1 11392 bytes

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