Malicious PDF — malware analysis report

Static analysis result for SHA-256 978d96c912b29941…

MALICIOUS

PDF

43.8 KB Created: 2020-08-24 18:27:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7ea35f947acec06ee92d8e2acea332d7 SHA-1: 160ad1e6d4c520132978a3b875223ddb23b5964e SHA-256: 978d96c912b299413e3a769e80342f2d6a05655f7e112cfee91248fe2fb1ee46
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one heuristic specifically identifying it as a PDF link farm. The primary malicious URL, 'https://ttraff.com/pify?keyword=android+sqlite+between+query', is flagged as a known malicious redirector. The document body is heavily obfuscated and contains binary data, suggesting it is not intended for direct user consumption but rather to host these links.

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=android+sqlite+between+query
    • http://fofal.premieraestheticshouston.com/uploads/1/3/1/3/131398575/54a98bed51.pdf
    • http://files.wilsonramband.com/uploads/1/3/1/3/131383943/028e7d138b1d.pdf
    • https://cdn.shopify.com/s/files/1/0433/9128/7452/files/91712845767.pdf
    • https://cdn.shopify.com/s/files/1/0430/6200/1825/files/22036000836.pdf
    • https://cdn.shopify.com/s/files/1/0444/7505/6295/files/excel_template_meal_planner_shopping_list.pdf
    • https://cdn.shopify.com/s/files/1/0428/5733/2895/files/center_text_markdown.pdf
    • https://cdn.shopify.com/s/files/1/0428/8951/1068/files/enter_the_gungeon_cigarettes.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/niwaragevutaxesidep.pdf
    • https://cdn.shopify.com/s/files/1/0437/2201/4870/files/metric_bolt_size_chart_uk.pdf
    • https://cdn.shopify.com/s/files/1/0435/2344/0804/files/79766010502.pdf
    • https://cdn.shopify.com/s/files/1/0429/6579/4965/files/5334895254.pdf
    • https://cdn.shopify.com/s/files/1/0431/8763/4338/files/fekofixenujubozivepuvovol.pdf
    • https://cdn.shopify.com/s/files/1/0437/7434/5365/files/medicamentos_analgesicos_lista.pdf
    • https://cdn.shopify.com/s/files/1/0432/8990/3264/files/letigarusaze.pdf
    • https://cdn.shopify.com/s/files/1/0438/5452/8677/files/acronis_true_image_2019_iso.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_off0000665f.bin
2b2088b1edbdf6cdb369707a873e736f3b82868fef0fec3b4615ddd125c722c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x665F 5060 bytes
font_01_sfnt_off000077ac.bin
4d4105fb62b9f0754270122891241d0af5f3939690b14a652597e941591c113f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77AC 13364 bytes

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