Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2b60aea0e2442af…

MALICIOUS

PDF

62.6 KB Created: 2020-08-24 01:28:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 656864e21b2f96ab46685851404093f9 SHA-1: 4b958c4dc1ea094af57ee3db999c50a97d380aca SHA-256: c2b60aea0e2442af0fb0b4404e5d85b09bb0d741553e29bcff9cb1b3d86673e4
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=banarasi+babu+film+song'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external PDF links, including one hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the same redirector URL, suggesting a social engineering lure.

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=banarasi+babu+film+song
    • http://kokofe.hoodoohealing.net/uploads/1/3/1/4/131483138/5220074.pdf
    • https://cdn.shopify.com/s/files/1/0449/5068/3816/files/7th_grade_math_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0429/3355/1260/files/53567399047.pdf
    • https://cdn.shopify.com/s/files/1/0435/2652/0986/files/carbohydrate_chemistry_and_biochemistry.pdf
    • https://cdn.shopify.com/s/files/1/0429/2693/2124/files/15986911344.pdf
    • https://cdn.shopify.com/s/files/1/0435/8176/7841/files/american_english_file_4_teacher_s_book_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/62042090741.pdf
    • https://cdn.shopify.com/s/files/1/0432/2702/1480/files/dagoxupat.pdf
    • https://cdn.shopify.com/s/files/1/0433/7968/7587/files/at_home_workout_plan_without_equipment.pdf
    • https://cdn.shopify.com/s/files/1/0434/0305/1171/files/66833095168.pdf
    • https://cdn.shopify.com/s/files/1/0436/1207/8243/files/kafawuduxugu.pdf
    • https://cdn.shopify.com/s/files/1/0427/4677/3660/files/44637445933.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_off0000b175.bin
6befcce9414030de0b1438fada7658f19446da256e10eda4c6e7772dd87725ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB175 5276 bytes
font_01_sfnt_off0000c34c.bin
4a1db4e0df71b456eeb9dc7a9e33c54e26b919caf19727bd177e96b94ae0e17e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC34C 13556 bytes

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