Malicious PDF — malware analysis report

Static analysis result for SHA-256 c49c26fea9009347…

MALICIOUS

PDF

43.4 KB Created: 2020-08-19 03:54:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 70435bb496edcbaa536c3202c541f92d SHA-1: cf50421f22d5671b252589fbed1ff0e1dc33ab79 SHA-256: c49c26fea9009347144101ec51712d0603f30cba8b003d23f0e4ce05fb21f638
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector at 'https://ttraff.com/pify?keyword=guided+by+voices+bootlegs'. Another critical heuristic identified a PDF link farm, with the first URL pointing to 'https://cdn.shopify.com/s/files/1/0446/5885/1993/files/benzodiacepinas_elsevier.pdf'. The document body contains obfuscated text and the target URL, suggesting a social engineering lure to redirect users to malicious infrastructure.

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=guided+by+voices+bootlegs
    • http://files.mrknifeguy.ca/uploads/1/3/1/1/131164152/vasum.pdf
    • https://cdn.shopify.com/s/files/1/0446/5885/1993/files/benzodiacepinas_elsevier.pdf
    • https://cdn.shopify.com/s/files/1/0431/8180/1629/files/sezuxobod.pdf
    • https://cdn.shopify.com/s/files/1/0432/0709/8529/files/android_bitmap_set_scale.pdf
    • https://cdn.shopify.com/s/files/1/0439/8658/3710/files/coronally_advanced_flap.pdf
    • https://cdn.shopify.com/s/files/1/0434/2359/6693/files/small_aircraft_wing_structure_design.pdf
    • https://cdn.shopify.com/s/files/1/0429/5111/4908/files/77062589194.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kaxepetumikikexozifaxu.pdf
    • https://cdn.shopify.com/s/files/1/0430/8041/7447/files/86552661000.pdf
    • https://cdn.shopify.com/s/files/1/0433/1572/4456/files/pazibuteto.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_off00006cd6.bin
9400384c3e80d7b246ae564258da63d42222c07badfd1d2c5fb84b2e72cbf21d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CD6 5136 bytes
font_01_sfnt_off00007e6d.bin
11bbb93ff23fbd2159de95a496467edc9fef9a778ba7855bcb55ad9915367a78		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E6D 10240 bytes

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