Malicious PDF — malware analysis report

Static analysis result for SHA-256 59e22e5608eb559f…

MALICIOUS

PDF

33.4 KB Created: 2020-08-20 23:40:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c1cd071ba011e54f5dcf801a9838a3db SHA-1: 1d14b9f258381029ebc6025fc83fe3312752c76f SHA-256: 59e22e5608eb559ffc3a46cf0edf7bacf02eaf58fa83e73aad0b1cbcb2b416bb
150 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains the string 'https://ttraff.com/pify?keyword=garden+leave+template+uk', indicating a lure to a malicious site. The presence of numerous other PDF links suggests a link farm or a method to distribute further malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=garden+leave+template+uk
    • http://files.schillingerbassoon.com/uploads/1/3/2/7/132710678/48b7f3e8859.pdf
    • http://files.sfafs.org/uploads/1/3/1/8/131856852/wuwomezudapi_joburosororet_vedulijinodi.pdf
    • http://files.themohicans.net/uploads/1/3/1/8/131871849/3c30e035.pdf
    • https://cdn.shopify.com/s/files/1/0434/5911/7206/files/cicik_c4_b1z.pdf
    • https://cdn.shopify.com/s/files/1/0433/3702/3656/files/yokogawa_centum_vp_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/7182/3262/files/zijivaperinogazekaviza.pdf
    • https://cdn.shopify.com/s/files/1/0439/2786/3464/files/vekekitujamebenipijena.pdf
    • https://cdn.shopify.com/s/files/1/0434/5266/1912/files/79710263510.pdf
    • https://cdn.shopify.com/s/files/1/0437/5071/9642/files/23056298443.pdf
    • https://cdn.shopify.com/s/files/1/0434/7019/2805/files/boloburavomokemuwe.pdf
    • https://cdn.shopify.com/s/files/1/0436/0765/4563/files/ielts_reading_question_types_and_tips_filetype.pdf
    • https://cdn.shopify.com/s/files/1/0432/1663/4016/files/metro_route_map_delhi_ncr.pdf
    • https://cdn.shopify.com/s/files/1/0431/6420/5216/files/25044320962.pdf
    • https://cdn.shopify.com/s/files/1/0430/9581/8404/files/ludiroreka.pdf
    • https://cdn.shopify.com/s/files/1/0432/8374/2884/files/85019693482.pdf
    • https://cdn.shopify.com/s/files/1/0433/0412/4571/files/bible_commentary_niv.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_off0000468a.bin
c40d304fdb569f3c4e61f84760746949facd3e20dcd194c3eeb169309dbbe6f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x468A 5084 bytes
font_01_sfnt_off000057cc.bin
b4750d397859c1b0ecd0c940f76ae92d98a80f26090b08d5b4ff9c1f6567b6cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57CC 9688 bytes

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