Malicious PDF — malware analysis report

Static analysis result for SHA-256 36dbbd38f6ffb0fc…

MALICIOUS

PDF

44.1 KB Created: 2020-09-14 11:04:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8e595098609170a35d72f395681fe684 SHA-1: e0885cc499b59c4aadbddff65ed60644f2e116ae SHA-256: 36dbbd38f6ffb0fc097db41d082e2644b6296eebb183cb3ad1d1d4cc47c19572
160 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one critical link pointing to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text that, combined with the heuristic firings, suggests an advance-fee scam lure. The primary malicious URL is ttraff.club, which is used to redirect users to potentially harmful content or downloads.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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.club/wix?keyword=numbers+in+binary+calculator
    • https://cdn.shopify.com/s/files/1/0427/8134/3900/files/blackmart_apk_for_android_2._3._6.pdf
    • https://cdn.shopify.com/s/files/1/0431/0990/8642/files/brain_dead_full_movie_hd.pdf
    • https://cdn.shopify.com/s/files/1/0435/7944/1307/files/terminator_salvation_2009_full_movie.pdf
    • https://cdn.shopify.com/s/files/1/0428/8066/3705/files/divergence_cheat_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0430/1812/5465/files/pivoso.pdf
    • https://static.usrfiles.com/ugd/112488_d990ef5f3fd241deac48b716f6ded96e.pdf
    • https://static.usrfiles.com/ugd/12745a_af69a51501214c8891dbe9a0cd4b8e5f.pdf
    • https://static.usrfiles.com/ugd/69a512_b8503d4a117b41ffb5659737a7532d21.pdf
    • https://static.usrfiles.com/ugd/fa6f14_7f6b7b933a5f4b16ab90ac334dd8b51e.pdf
    • https://static.usrfiles.com/ugd/e4f6f0_fc910998b19d45fc8354f8b84e79598b.pdf
    • https://cdn.shopify.com/s/files/1/0432/8184/2341/files/classified_ads_website_template_wordpress_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/9020/6117/files/78276413917.pdf
    • https://cdn.shopify.com/s/files/1/0435/4729/5898/files/vexigenotumadulowofebitef.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_off00006f1b.bin
6f4320a1fcfd7bf68c95c39d3a14dba1e9b7857b35ddab6231dc01be19dbe059		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F1B 5156 bytes
font_01_sfnt_off00008093.bin
8d9d64c4f3c240ed1598e23ae1c61e1a73bcb5c384f1168b4582666137302659		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8093 10400 bytes

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