Malicious PDF — malware analysis report

Static analysis result for SHA-256 f32204d9c0f75c7f…

MALICIOUS

PDF

42.1 KB Created: 2020-08-19 04:05:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7eeb401f4fb37294170835e62f072348 SHA-1: f637ba10e6cab89f1a2d0989be69284ec694b468 SHA-256: f32204d9c0f75c7fbd0d87c0a9ad07845101e3dd3f8563cb13558a37b46188f4
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a malicious redirector at 'https://ttraff.cc/pify?keyword=fight+or+flight+response+worksheet+pdf'. The document body, though heavily obfuscated, appears to be a lure related to a 'fight or flight response worksheet'. The presence of a large number of external links, many pointing to Shopify domains, suggests a link farm or SEO poisoning tactic to distribute 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=fight+or+flight+response+worksheet+pdf
    • http://files.wovgw.org/uploads/1/3/1/1/131164558/be5f725.pdf
    • http://jopijet.heavenlymadecreations.com/uploads/1/3/0/7/130775248/8985040.pdf
    • https://cdn.shopify.com/s/files/1/0432/6011/7160/files/13170905187.pdf
    • https://cdn.shopify.com/s/files/1/0428/4832/1702/files/83193051147.pdf
    • https://cdn.shopify.com/s/files/1/0431/2589/9426/files/honda_chf50_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/0486/2374/files/71627309620.pdf
    • https://cdn.shopify.com/s/files/1/0438/7205/9547/files/60131419898.pdf
    • https://cdn.shopify.com/s/files/1/0430/8815/0690/files/fafuvepajaxenipuzagepej.pdf
    • https://cdn.shopify.com/s/files/1/0429/2077/1750/files/84312045398.pdf
    • https://cdn.shopify.com/s/files/1/0434/8307/0630/files/94615967570.pdf
    • https://cdn.shopify.com/s/files/1/0432/3452/5352/files/alexa_app_fr_windows.pdf
    • https://cdn.shopify.com/s/files/1/0433/1870/6331/files/10672563551.pdf
    • https://cdn.shopify.com/s/files/1/0432/2384/2983/files/kuneri.pdf
    • https://cdn.shopify.com/s/files/1/0435/1416/7450/files/84700322250.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_off0000674e.bin
2df06e3d9d5f910cb20b27bed5471a16b794ff8f149f795e374b56079bce8531		 pdf-font-stream PDF embedded font (sfnt) at offset 0x674E 5204 bytes
font_01_sfnt_off0000791f.bin
d895237c00b77319e0f69975d7ca6793aecfc9ef598773d035335aa6de528773		 pdf-font-stream PDF embedded font (sfnt) at offset 0x791F 10132 bytes

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