Malicious PDF — malware analysis report

Static analysis result for SHA-256 9be3517671d00361…

MALICIOUS

PDF

98.2 KB Created: 2020-08-15 19:55:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ba0bdf9c86477723b2d9250bf8a3f0c SHA-1: 525fba146441242416c8997a1ac4f35be273f691 SHA-256: 9be3517671d003616ca9d0e436fedf1a5d1ecf34d0789ad49e0b089c239c97ce
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/wb?keyword=mp%20police%20si%20syllabus%202018%20pdf'. This indicates an attempt to redirect the user to a malicious site, likely for phishing or malware distribution. The document body also contains this URL, reinforcing the malicious intent. The presence of a PDF link farm heuristic further suggests this document is part of a larger SEO poisoning or link farm campaign.

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.com/wb?keyword=mp%20police%20si%20syllabus%202018%20pdf
    • http://files.mrsstarbuckskindergarten.com/uploads/1/3/1/3/131382531/7503187c79409be.pdf
    • https://cdn.shopify.com/s/files/1/0440/8056/2326/files/dd_form_137_5.pdf
    • https://cdn.shopify.com/s/files/1/0430/2825/0781/files/96933078580.pdf
    • https://cdn.shopify.com/s/files/1/0431/8999/3636/files/flame_orb_pixelmon.pdf
    • https://cdn.shopify.com/s/files/1/0438/2189/1746/files/sickle_cell_disease_book.pdf
    • https://cdn.shopify.com/s/files/1/0437/9744/6816/files/wokeduvi.pdf
    • https://cdn.shopify.com/s/files/1/0431/0315/8433/files/whispers_of_yenwood.pdf
    • https://cdn.shopify.com/s/files/1/0432/5244/9435/files/juwebalovanadisugujisu.pdf
    • https://cdn.shopify.com/s/files/1/0432/1997/6350/files/61672571656.pdf
    • https://cdn.shopify.com/s/files/1/0430/7678/0192/files/tosusifasikoleje.pdf
    • https://cdn.shopify.com/s/files/1/0430/3526/3138/files/78041210021.pdf
    • https://cdn.shopify.com/s/files/1/0437/1188/9562/files/market_guide_for_customer_journey_analytics.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fed8.bin
08be9ece0a7de2d59af5c48ee873e8fc65b534a70e81a667f2391790374b7e70		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFED8 5820 bytes
font_01_sfnt_off000112c1.bin
1c38ea340e422de6fc3748c33c861eeaa30ef60d4b03797d16db7ec7ebf76e5e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x112C1 13204 bytes
font_02_sfnt_off00013ced.bin
2b30de3549cd56b3896f2e74591d130a23ace27a0b6cd54d33a5fb8cbb387620		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13CED 21432 bytes

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