Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef93d30645aee97f…

MALICIOUS

PDF

49.7 KB Created: 2020-08-07 14:14:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4fdeb4b280b8fd018c1e1c5dc534a62f SHA-1: 8e7786e9f6f8ddeb4533186f9edd13682897e323 SHA-256: ef93d30645aee97f433b121dab3a31a0dc9bffb118ed726175a40a3215eb993f
160 Risk Score

Malware Insights

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

The PDF contains a social engineering lure, instructing the user to install a browser extension or update to view content. It also embeds numerous links, many of which point to a link farm hosted on Shopify. The primary malicious link, https://ttraff.com/pify?keyword=affiliate+marketing+without+a+website+pdf, is identified as a malicious redirector, indicating the document's purpose is to lead users to harmful infrastructure. No scripts were extracted from this sample.

Heuristics 4

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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=affiliate+marketing+without+a+website+pdf
    • http://files.4hcampohio.org/uploads/1/3/1/4/131453208/fifaxedilebabix_nigute_jumod_rapekarugiki.pdf
    • http://files.redroomyoga.com/uploads/1/3/1/1/131164417/836d1.pdf
    • http://files.listerpartyrental.com/uploads/1/3/1/4/131482892/1070805.pdf
    • http://files.janenodine.com/uploads/1/3/1/4/131438348/1940142.pdf
    • http://files.themerchantsguildstore.com/uploads/1/3/1/4/131408970/d5801d.pdf
    • https://cdn.shopify.com/s/files/1/0436/4900/7769/files/bra_sanay_kitap.pdf
    • https://cdn.shopify.com/s/files/1/0433/3685/9813/files/fajemew.pdf
    • https://cdn.shopify.com/s/files/1/0430/8313/7178/files/40904623996.pdf
    • https://cdn.shopify.com/s/files/1/0431/4143/1464/files/35661718533.pdf
    • https://cdn.shopify.com/s/files/1/0430/8199/0293/files/braun_series_9_manual_english.pdf
    • https://cdn.shopify.com/s/files/1/0432/4065/2960/files/mowigaxaguw.pdf
    • https://cdn.shopify.com/s/files/1/0428/7945/1292/files/23889897469.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/70354855800.pdf
    • https://cdn.shopify.com/s/files/1/0432/2885/6487/files/boogie_nights_musical_script.pdf
    • https://cdn.shopify.com/s/files/1/0437/8086/6197/files/58762062833.pdf
    • https://cdn.shopify.com/s/files/1/0431/0866/3462/files/bedejuzoriruk.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_off000081fa.bin
2d277d1343802c6d73144f66e285a800e1b0a6f8c227d9f58da50e8f5b117aea
pdf-font-stream PDF embedded font (sfnt) at offset 0x81FA 5740 bytes
font_01_sfnt_off0000956e.bin
e850337f128cc0a15f658480b5c5bd9518258f5896e79eccf4b0f43427eb4af4
pdf-font-stream PDF embedded font (sfnt) at offset 0x956E 10624 bytes