Malicious PDF — malware analysis report

Static analysis result for SHA-256 962dce3805ed7660…

MALICIOUS

PDF

68.0 KB Created: 2020-08-23 08:03:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3e7cedbe4cef9e963c12f18e250bbe53 SHA-1: 99226b8964e7b89b2c08ee609bf51c28494de6ea SHA-256: 962dce3805ed766045017ca296fa239d67fb654923d9ab936c81bdf2a4a135da
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=batman+killing+joke+comic'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The document body, though heavily obfuscated, contains the same URL, reinforcing its role as a lure. No scripts were extracted, and the PDF structure itself does not suggest further exploitation beyond the link.

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/pify?keyword=batman+killing+joke+comic
    • http://files.freehillblades.com/uploads/1/3/1/3/131380889/fanujepusi-wawud.pdf
    • http://files.barrysnyderdesigns.com/uploads/1/3/1/4/131438692/0001de3.pdf
    • http://files.hairoftheferret.com/uploads/1/3/2/6/132695519/6926605.pdf
    • http://files.soupsatthestation.com/uploads/1/3/1/6/131637291/zuxuvugonusipof.pdf
    • https://cdn.shopify.com/s/files/1/0431/9094/3901/files/how_to_convert_xps_to.pdf
    • https://cdn.shopify.com/s/files/1/0432/3760/5544/files/61140621126.pdf
    • https://cdn.shopify.com/s/files/1/0437/1467/4841/files/cassation_decision_volume_18.pdf
    • https://cdn.shopify.com/s/files/1/0428/1437/4047/files/manual_de_taller_chrysler_neon_2000.pdf
    • https://cdn.shopify.com/s/files/1/0432/7066/8453/files/82604712554.pdf
    • https://cdn.shopify.com/s/files/1/0464/6567/9512/files/que_es_el_sistema_capitalista.pdf
    • https://cdn.shopify.com/s/files/1/0436/2108/9444/files/the_winky_wonky_donkey.pdf
    • https://cdn.shopify.com/s/files/1/0437/6900/4190/files/lesoes_precursoras_do_cancer_de_colo_de_utero.pdf
    • https://cdn.shopify.com/s/files/1/0431/0935/1578/files/jaxegokakopadixen.pdf
    • https://cdn.shopify.com/s/files/1/0440/6883/1382/files/nyda_entrepreneurship_development_programme.pdf
    • https://cdn.shopify.com/s/files/1/0437/0310/7752/files/rewuxivarejagexikenofavow.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_off0000c3bb.bin
d91c2fe0103cb8de3d3057d980d98f8955ca0265cb2623fb9789c7618578df30		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC3BB 5032 bytes
font_01_sfnt_off0000d4cd.bin
7151ebe24781ab44da9236c120af63fa5bc58a05af1e28c1d6301a1d07a2706f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD4CD 15036 bytes

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