Malicious PDF — malware analysis report

Static analysis result for SHA-256 388491d6ae60eca7…

MALICIOUS

PDF

46.4 KB Created: 2020-08-08 01:16:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5e2f6a2e39f4e29ed97a8609bfc39041 SHA-1: e088cd15904a4b86701fcc817ced7ffaf3e2f922 SHA-256: 388491d6ae60eca7d60e47347f3c22a754612e9b574af94a4cceed73d112fa8f
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.001 Malicious Link

The PDF file contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is `https://ttraff.ru/pify?keyword=animisme+dinamisme+pdf`. Another heuristic indicates a link farm, with `https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mulobovapu.pdf` being the first listed. The document body appears to be heavily obfuscated or corrupted, but the presence of these links strongly suggests a phishing or malware delivery attempt.

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.ru/pify?keyword=animisme+dinamisme+pdf
    • http://lokajasav.katietoombs.com/uploads/1/3/2/7/132710712/dikadurazaruda.pdf
    • http://files.boostyourbodybootcamp.com/uploads/1/3/2/3/132303028/1144462.pdf
    • http://files.reusserland.com/uploads/1/3/0/8/130874189/zijubomumunisiwus.pdf
    • http://botemese.birdsofafeathershoppetogether.com/uploads/1/3/2/7/132710703/paxesezabe_pevekeper.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mulobovapu.pdf
    • https://cdn.shopify.com/s/files/1/0434/6894/7616/files/256979656.pdf
    • https://cdn.shopify.com/s/files/1/0431/0728/7197/files/catalyst_athletics_book_of_programs.pdf
    • https://cdn.shopify.com/s/files/1/0435/6043/5873/files/21188918817.pdf
    • https://cdn.shopify.com/s/files/1/0432/8436/5468/files/sevukasoxezavivipa.pdf
    • https://cdn.shopify.com/s/files/1/0436/9914/2810/files/wosepuvuzisuvema.pdf
    • https://cdn.shopify.com/s/files/1/0428/9291/8947/files/16080962444.pdf
    • https://cdn.shopify.com/s/files/1/0429/2175/4787/files/sanuvewuni.pdf
    • https://cdn.shopify.com/s/files/1/0434/4964/7270/files/tuvopib.pdf
    • https://cdn.shopify.com/s/files/1/0436/1102/9666/files/42862604319.pdf
    • https://cdn.shopify.com/s/files/1/0431/0233/9232/files/benijoratugabirove.pdf
    • https://cdn.shopify.com/s/files/1/0432/0801/6027/files/77223537418.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_off000078cc.bin
62810387bde6633eee998b21518c374ffdf0a89988782d919eca504bac977ae9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78CC 5048 bytes
font_01_sfnt_off000089ea.bin
f625305c804f5fee0ff4b5b94e4d5bc8b9d3a49a170cfa0b0f157c66d22420a2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x89EA 10316 bytes

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