Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb34a842e44e0d8f…

MALICIOUS

PDF

33.6 KB Created: 2020-08-01 06:09:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f3cda0dc47b846f22bf6178c604b1ba SHA-1: a2b41bb93df37b2a12421dcf1c89497061ead81f SHA-256: fb34a842e44e0d8f91c5942b7df4d76f1510f3a88da61cb352fceed938754eb0
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, masquerading as a manual, with one critical link pointing to a known malicious redirector. The primary malicious URL identified is https://ttraff.cc/pify?keyword=ritetemp+thermostat+manual. This indicates a phishing or scam attempt 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=ritetemp+thermostat+manual
    • http://files.nestonhockey.co.uk/uploads/1/3/0/7/130738881/gasawujasawujisal.pdf
    • http://files.bethlehem505.org/uploads/1/3/0/7/130775400/patupojafo-xegupoxezetorox-tesutejesev-vasinufip.pdf
    • http://files.mikegriffiths.net/uploads/1/3/1/6/131636916/wovuwujoxunedo.pdf
    • https://cdn.shopify.com/s/files/1/0437/6009/1287/files/fetasavamaw.pdf
    • https://cdn.shopify.com/s/files/1/0431/2249/1541/files/tony_little_gazelle_manual.pdf
    • https://cdn.shopify.com/s/files/1/0441/2017/8840/files/suicid_squad_torrent.pdf
    • https://cdn.shopify.com/s/files/1/0431/2668/5858/files/mutinema.pdf
    • https://cdn.shopify.com/s/files/1/0432/1381/5966/files/48430133075.pdf
    • https://cdn.shopify.com/s/files/1/0433/7578/8184/files/647973840.pdf
    • https://cdn.shopify.com/s/files/1/0431/0512/4516/files/tabitaxefibalikutijisulo.pdf
    • https://cdn.shopify.com/s/files/1/0434/4781/2248/files/22747681822.pdf
    • https://cdn.shopify.com/s/files/1/0427/7298/8071/files/45051227706.pdf
    • https://cdn.shopify.com/s/files/1/0430/8297/3346/files/bejerezomifuzivav.pdf
    • https://cdn.shopify.com/s/files/1/0431/5355/5624/files/99488310442.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_off00004933.bin
6f1d6a1e707c78b45761189ba1797fad7470c7e4212b460645ed236226a2c362		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4933 5064 bytes
font_01_sfnt_off00005a3a.bin
d8ff7284106913124d42ba40a361dabcd89de7d3271321e46155020c63ac10b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A3A 9240 bytes

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