Malicious PDF — malware analysis report

Static analysis result for SHA-256 202b335772dd0c6d…

MALICIOUS

PDF

220.4 KB Created: 2020-08-24 16:16:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 96c4e45de4355470e242790dfaa4e1bc SHA-1: 4ff6ffd9fe8c5f8d07bf4cfbced1c42a657bf945 SHA-256: 202b335772dd0c6d5d8040ef9b94564ed01cf15269f1dedf2e509846680fdbc0
68 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.com, which is likely used to deliver a payload. The document body, though heavily obfuscated, contains the string "Idsa endocarditis guidelines" and also the URL itself, suggesting a lure to entice users to click the malicious link. The heuristic firings confirm the presence of a malicious redirector link and urgency lures within the document.

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.com/pify?keyword=idsa+endocarditis+guidelines
    • http://files.diycottage4u.com/uploads/1/3/0/7/130776726/7484426.pdf
    • https://cdn.shopify.com/s/files/1/0430/0803/2922/files/86018826657.pdf
    • https://cdn.shopify.com/s/files/1/0436/0830/9923/files/7411405196.pdf
    • https://cdn.shopify.com/s/files/1/0433/2408/0282/files/sindrome_de_abstinencia_nicotina.pdf
    • https://cdn.shopify.com/s/files/1/0428/9848/9503/files/vizifudokanaributejumi.pdf
    • https://cdn.shopify.com/s/files/1/0463/2533/4171/files/lowefiv.pdf
    • https://cdn.shopify.com/s/files/1/0434/2287/5797/files/10850652747.pdf
    • https://cdn.shopify.com/s/files/1/0435/5751/9523/files/22068704463.pdf
    • https://cdn.shopify.com/s/files/1/0434/2546/4476/files/tipos_de_angulos_en_fotografia.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mafimovudowejiner.pdf
    • https://cdn.shopify.com/s/files/1/0434/1576/5148/files/baixar_livro_antes_de_partir.pdf
    • https://cdn.shopify.com/s/files/1/0437/7195/3301/files/atlas_of_electrocardiography_wang.pdf
    • https://cdn.shopify.com/s/files/1/0429/5675/1002/files/odia_song_dj_2017.pdf
    • https://cdn.shopify.com/s/files/1/0430/8362/8697/files/rageg.pdf
    • https://cdn.shopify.com/s/files/1/0438/4745/0784/files/zomoxobinabepokat.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_off000323b5.bin
2ec22f9e89b285b04c32b7e8d41eaed92efc046f0aca5accd385af6b12ee9945		 pdf-font-stream PDF embedded font (sfnt) at offset 0x323B5 5044 bytes
font_01_sfnt_off000334e2.bin
66f16c554e5c0bc0102f72807f73ae3139a580ad484d51e4ed2e400d82332ff1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x334E2 14784 bytes

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