Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f7724117ca7f9b9…

MALICIOUS

PDF

925.3 KB Created: 2020-08-10 23:18:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2e51d6ab2fc70122fdadcdafa57b3cf6 SHA-1: d61f4cf19bdaf382ecf82d85af8a808050a81918 SHA-256: 3f7724117ca7f9b93b72e465fd078f46eb1a5d45640da7b7b70f2f66b55dac36
70 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=valvular+heart+disease+and+anesthesia+pdf'. The document body, though heavily obfuscated, contains this same URL, suggesting the primary intent is to redirect the user to this malicious site. The presence of urgency language further supports a phishing or social engineering attack pattern.

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.ru/pify?keyword=valvular+heart+disease+and+anesthesia+pdf
    • http://files.unpsoccer.org/uploads/1/3/0/9/130969889/3353318.pdf
    • http://files.snazzycakesedibleart.com/uploads/1/3/2/6/132681482/6102841.pdf
    • http://files.redbudpartybarn.com/uploads/1/3/1/4/131452842/katuzur_tufilelora_sabukobulaj_rujevezeze.pdf
    • http://files.murraywoodscuteachingportfolio2020.com/uploads/1/3/0/7/130739116/vupex_reziregunarabu_fadomojeju_sizozavovudiret.pdf
    • https://cdn.shopify.com/s/files/1/0431/6656/4503/files/winnie_the_pooh_1926.pdf
    • https://cdn.shopify.com/s/files/1/0431/4834/5500/files/96114797879.pdf
    • https://cdn.shopify.com/s/files/1/0437/1690/3080/files/cours_sur_les_barycentres_1ere_s.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dejozetopugewafapo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bisadugizutojaririxenudep.pdf
    • https://cdn.shopify.com/s/files/1/0449/5346/9083/files/effects_of_globalisation_on_education_in_zimbabwe.pdf
    • https://cdn.shopify.com/s/files/1/0432/1384/8733/files/tabloid_junkie_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0431/5784/8224/files/mulixozivowixibotet.pdf
    • https://cdn.shopify.com/s/files/1/0440/1712/3478/files/applications_of_gis.pdf
    • https://cdn.shopify.com/s/files/1/0441/1791/7848/files/31116348874.pdf
    • https://cdn.shopify.com/s/files/1/0433/1077/6473/files/29484569538.pdf
    • https://cdn.shopify.com/s/files/1/0432/5310/4790/files/dejukupudibirevujivutado.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_off000e1e4a.bin
1c23eec694d1fe6ca36aa71a31a588c21d8e62b183fbc8ebdbe2bd49a3f81a01		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE1E4A 5152 bytes
font_01_sfnt_off000e2fda.bin
61c4b2e3cebbd9a39bd08dc08ac089cb18fe285eab41623ea9dad1d7d71eaee4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE2FDA 15952 bytes

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