Malicious PDF — malware analysis report

Static analysis result for SHA-256 4cbc7092b005e95c…

MALICIOUS

PDF

50.3 KB Created: 2020-08-22 02:54:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3e0938e48288f8d479ae218eb376e1f9 SHA-1: fae8858bc8b0e7fc8b7188b9373f72c356341a28 SHA-256: 4cbc7092b005e95c497011510166021779250538f476ad0676f47fcda6f6dd8c
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF contains a mass external link farm, with one specific link identified as a malicious redirector. The document body, though heavily obfuscated, contains the malicious URL. This indicates a phishing attempt designed to redirect users to malicious content.

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.cc/pify?keyword=batman+who+laughs%2523+1
    • http://files.freeshoestring.com/uploads/1/3/0/7/130775490/javusemolewu-fokugonages-losurete-wosuromageba.pdf
    • http://palenuze.purplehorizonjewelry.com/uploads/1/3/2/6/132683130/wojekanitofakidila.pdf
    • http://kadegigaj.karaites.org/uploads/1/3/0/7/130775075/kuvow-divusuzaduda-fanisoxalaveb-zejozutu.pdf
    • http://wixexe.trupbsc.ca/uploads/1/3/1/0/131069869/4468639.pdf
    • https://cdn.shopify.com/s/files/1/0439/9906/8310/files/best_answer_for_conflict_at_work.pdf
    • https://cdn.shopify.com/s/files/1/0438/3680/1181/files/43972691543.pdf
    • https://cdn.shopify.com/s/files/1/0429/2437/6227/files/chrome_for_pc_64_bit_setup.pdf
    • https://cdn.shopify.com/s/files/1/0427/6885/9303/files/91173907317.pdf
    • https://cdn.shopify.com/s/files/1/0435/2576/7320/files/limuxe.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/58085676994.pdf
    • https://cdn.shopify.com/s/files/1/0431/4556/0219/files/pamipubuwonon.pdf
    • https://cdn.shopify.com/s/files/1/0428/7276/6630/files/levexepi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0491/1006/files/69879174442.pdf
    • https://cdn.shopify.com/s/files/1/0433/6667/8686/files/silkworm_bombyx_mori.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/
    • https://cdn.shopify.com/s/files/1/0433/0491/1006/files/6987917

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000088ac.bin
5998efd680193376d4f0182cdcf5e082635b7f981662b9079e9d7af28f2b3f6f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x88AC 5144 bytes
font_01_sfnt_off00009a14.bin
9c31ccc0620ab1766be5943abc392d9d01f29570e3c1a8124b04044f92cf98e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9A14 10076 bytes

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