Malicious PDF — malware analysis report

Static analysis result for SHA-256 96c2149af7e6002f…

MALICIOUS

PDF

37.8 KB Created: 2020-08-31 04:04:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1232eedbff0094cc48708e50b7a7a289 SHA-1: c5bdf2365a6308b5f93d9a14f260bf6b974a1afb SHA-256: 96c2149af7e6002f40b1050ca2ecf3fa1142cbc91218bf9f45cd49ae64fdf2d8
128 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/wix?keyword=hairspray+props+list'. Additionally, it exhibits characteristics of an SEO link farm, embedding numerous links to other PDF documents hosted on 'static.usrfiles.com'. While no scripts were extracted, the sheer volume of links and the presence of a malicious redirector suggest an attempt to lure users to potentially harmful content or manipulate search engine rankings.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/wix?keyword=hairspray+props+list
    • https://static.usrfiles.com/ugd/77d535_84176dc30fe64e0291008cc79f8ecc23.pdf
    • https://static.usrfiles.com/ugd/739437_cd73942695124f6ba5c5e67a638e5599.pdf
    • https://static.usrfiles.com/ugd/ee9d3f_4d69a34e703c4b1683b6b7cc9f7c2595.pdf
    • https://static.usrfiles.com/ugd/726ec9_0df31543b089493daf555fca1d3a76a8.pdf
    • https://static.usrfiles.com/ugd/b8c837_3bc711463b5543f9bfda39dff8fea57d.pdf
    • https://static.usrfiles.com/ugd/286fb8_4b0b120770da4f92bbf0eb84cddf34ea.pdf
    • https://cdn.shopify.com/s/files/1/0456/8852/0863/files/face_to_face_meeting_email_template.pdf
    • https://cdn.shopify.com/s/files/1/0433/1687/1333/files/c_capitalize_first_letter.pdf
    • https://cdn.shopify.com/s/files/1/0430/1550/4029/files/28856162910.pdf
    • https://cdn.shopify.com/s/files/1/0448/4349/9677/files/alagey_alagey_song_in_masstamilan.pdf
    • https://cdn.shopify.com/s/files/1/0431/9156/6493/files/ctet_answer_key_paper_2_2020.pdf
    • https://cdn.shopify.com/s/files/1/0435/1298/7802/files/dubefuboworer.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_off0000558b.bin
25af032cb388795ea920e5e9913f28319bf7cd4c4405e5de9f00cb21954e2131		 pdf-font-stream PDF embedded font (sfnt) at offset 0x558B 4876 bytes
font_01_sfnt_off00006631.bin
f8ab22a171015a405dc45cde1c39feb42419878776e71a263ee525dd4354a35e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6631 10736 bytes

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