Malicious PDF — malware analysis report

Static analysis result for SHA-256 fff66bfb0738f254…

MALICIOUS

PDF

41.4 KB Created: 2020-08-11 18:10:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 55d79b1dbd336836f5db623b962f13f7 SHA-1: 0621b970a56f261abed513da50d43cd3078394fa SHA-256: fff66bfb0738f254fcd9fd1dc39cef493ec973a60c129a54158fd035362d55df
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=biometric+attendance+system+manual+pdf', is designed to lure users into clicking it under the guise of a 'biometric attendance system manual'. The PDF also contains a large number of external links, many pointing to Shopify domains, suggesting a link farm or SEO manipulation tactic to obscure the malicious redirector. No scripts were extracted from this sample.

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=biometric+attendance+system+manual+pdf
    • http://files.sarahjenness.com/uploads/1/3/1/3/131383478/4fc0d813b26c51.pdf
    • http://files.saskatoonpickleballinc.ca/uploads/1/3/0/8/130874333/tikujasule.pdf
    • http://files.airbrushofcincinnati.com/uploads/1/3/2/8/132814680/genoxafukaradu.pdf
    • https://cdn.shopify.com/s/files/1/0431/3609/0269/files/mp_map_full_size.pdf
    • https://cdn.shopify.com/s/files/1/0431/0256/8599/files/tonisazirofof.pdf
    • https://cdn.shopify.com/s/files/1/0433/4501/9035/files/kandidiasis_intertriginosa_adalah.pdf
    • https://cdn.shopify.com/s/files/1/0434/3149/3784/files/muridutadolesa.pdf
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/panijesitu.pdf
    • https://cdn.shopify.com/s/files/1/0435/9880/7202/files/english_to_bengali_converter.pdf
    • https://cdn.shopify.com/s/files/1/0433/8044/1238/files/65584178671.pdf
    • https://cdn.shopify.com/s/files/1/0434/6295/1062/files/lean_six_sigma_black_belt_body_of_knowledge.pdf
    • https://cdn.shopify.com/s/files/1/0428/8249/8716/files/duxuva.pdf
    • https://cdn.shopify.com/s/files/1/0431/0076/6369/files/32270205219.pdf
    • https://cdn.shopify.com/s/files/1/0427/5824/2470/files/semantic-_ui_cdn.pdf
    • https://cdn.shopify.com/s/files/1/0432/9986/4734/files/rizepujat.pdf
    • https://cdn.shopify.com/s/files/1/0433/2398/1979/files/97897954762.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_off000062dd.bin
da0b98b8e7bd6e35aba4799b1c0558d59d27ed61c8ee92bf09af83fbb8ffb0de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62DD 5452 bytes
font_01_sfnt_off00007558.bin
582cc34042c4e76e499991db8fc2cfefe95415799f0821266e67aa37d77163c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7558 10400 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.