Malicious PDF — malware analysis report

Static analysis result for SHA-256 d299b535b382d387…

MALICIOUS

PDF

55.1 KB Created: 2020-08-27 21:28:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 69ef170b92de691229748513a9399cb7 SHA-1: 6b961ccc7906aa3ea608c78f400cbb87b8641deb SHA-256: d299b535b382d387c61a17d6e515f4d3cdba0010aeab5bf501a1697f5881d996
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL and a reference to 'cdn.shopify.com', which is also listed as a link. This suggests the PDF is designed to trick the user into clicking the malicious link, likely for phishing or malware distribution.

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=examen+bimestral+sexto+grado+segundo
    • http://files.thomaspatrickryan.com/uploads/1/3/1/3/131379040/takipuxi_madisonutapu.pdf
    • http://files.tengshuoindonesia.com/uploads/1/3/1/3/131383478/7465833.pdf
    • http://xajinan.ayyamouvement.org/uploads/1/3/0/7/130775310/715fc98.pdf
    • http://files.morjimcocopalms.com/uploads/1/3/1/3/131384789/2a0aea98a146c0c.pdf
    • http://files.americancollegeofspinesurgery.org/uploads/1/3/1/3/131382595/391162.pdf
    • https://cdn.shopify.com/s/files/1/0428/3210/1543/files/73499447308.pdf
    • https://cdn.shopify.com/s/files/1/0428/7492/9319/files/tanasorutosugakunotozavud.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/18608783112.pdf
    • https://cdn.shopify.com/s/files/1/0429/2640/7833/files/sonoxoloka.pdf
    • https://cdn.shopify.com/s/files/1/0438/0311/5680/files/dilepedud.pdf
    • https://cdn.shopify.com/s/files/1/0434/1802/6141/files/68127664153.pdf
    • https://cdn.shopify.com/s/files/1/0430/3772/0733/files/40904720303.pdf
    • https://cdn.shopify.com/s/files/1/0431/9661/2768/files/femilagusumadegifijib.pdf
    • https://cdn.shopify.com/s/files/1/0428/2161/5783/files/sonatofudorojugalowip.pdf
    • https://cdn.shopify.com/s/files/1/0429/8076/9951/files/46430602169.pdf
    • https://cdn.shopify.com/s/files/1/0428/1496/3868/files/73392862205.pdf
    • https://cdn.shopify.com/s/files/1/0431/2491/6388/files/darkest_dungeon_sonorous_prophet_guide.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_off0000941c.bin
191478a726b583c24329d54e14334b30d99658d48ac1e4759d68de00f4c53f17		 pdf-font-stream PDF embedded font (sfnt) at offset 0x941C 5308 bytes
font_01_sfnt_off0000a612.bin
23f47efea9e499f97cfd1e567b6c1306e3df87e3c2eb9733f5cbe76d0e17e0d1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA612 12292 bytes

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