Malicious PDF — malware analysis report

Static analysis result for SHA-256 76b491a243d53bb4…

MALICIOUS

PDF

155.4 KB Created: 2020-09-03 00:02:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9d0eeb6de5373636c9c2f7df7b094fe5 SHA-1: 8d980a065440e5a1b5c6bd88619d962452aa73e2 SHA-256: 76b491a243d53bb4dc9899870b65cab44f71afe5cd1e730546ee84edb1daba8c
68 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF document contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.me/pify?keyword=idsa+guidelines+aseptic+meningitis'. This indicates the document's primary purpose is to lure the user to this malicious URL. The document also contains urgency language, further supporting a phishing or social engineering attack vector. No scripts were extracted from this sample.

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.
  • 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.me/pify?keyword=idsa+guidelines+aseptic+meningitis
    • https://static.usrfiles.com/ugd/a18aa6_f8719d2ea0be409ebbce4f7545978b68.pdf
    • https://static.usrfiles.com/ugd/3bca44_a952d9cbdda14081b369a858b5c622fc.pdf
    • https://static.usrfiles.com/ugd/e3ed1f_638dcf1cfbf144e49d79709756d0a93e.pdf
    • https://static.usrfiles.com/ugd/a4e402_85a17d35f6d646dc895d55dfeaa692d1.pdf
    • https://static.usrfiles.com/ugd/4b68be_bd7b5958909347d4bd84d14186fdf67a.pdf
    • https://static.usrfiles.com/ugd/4e6dd5_c6d7bb5d633b43ec8fe0e944ef596a2c.pdf
    • https://static.usrfiles.com/ugd/e2f197_84558f898c2f44a4ba82d9f0a8c93aa9.pdf
    • https://static.usrfiles.com/ugd/4826f5_99206f918f9543af97e14e7fe758f7af.pdf
    • https://cdn.shopify.com/s/files/1/0459/8271/1970/files/moldes_de_numeros_del_1_al_10_para_imprimir_a_color.pdf
    • https://cdn.shopify.com/s/files/1/0430/5167/9898/files/reverse_vending_machine_business_plan.pdf
    • https://cdn.shopify.com/s/files/1/0434/5197/3794/files/blackberry_link_for_android_tablet.pdf
    • https://cdn.shopify.com/s/files/1/0436/9825/8073/files/mobesesazagosega.pdf
    • https://cdn.shopify.com/s/files/1/0428/9868/6119/files/guwex.pdf
    • https://cdn.shopify.com/s/files/1/0445/4167/3636/files/wabariwufalojopuv.pdf
    • https://cdn.shopify.com/s/files/1/0431/6394/3067/files/srimad_bhagavad_gita_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0438/4374/7990/files/jawoxagupitupo.pdf
    • https://cdn.shopify.com/s/files/1/0435/2812/6618/files/mobowazovo.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_off00021ee2.bin
e3c3f4350dbea80ee5c2e8cc68583cd07c1fe0582c514beae4d1abb38b25097a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x21EE2 5236 bytes
font_01_sfnt_off000230a4.bin
654a89523f0b32d90e21ecd88acbf310c232a1f5e94fd497bc12b7291b06aba2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x230A4 14944 bytes

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