Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2db33d85052cf32…

MALICIOUS

PDF

42.5 KB Created: 2020-08-04 16:30:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 78fa8d3eea3f03251dde6aa0440ae0bb SHA-1: 8f527478349eeedbd03a75ef6ace328ac85f9287 SHA-256: f2db33d85052cf3200f8a542671c458b3879935813a9ccec303c5b6ce202b303
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains a URL pointing to a redirector service. This suggests the primary goal is to redirect the user to malicious content, likely a phishing page or malware download, disguised as a resource for 'architecture design pdf books'. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=architecture+design+pdf+books
    • http://files.shaltmira.com/uploads/1/3/0/7/130738933/gakolape.pdf
    • http://files.saphotoservices.com/uploads/1/3/2/3/132303322/moditenekij.pdf
    • http://files.inspiringrolejewelry.com/uploads/1/3/0/7/130776126/menifijagomobom-sepakexigoxekuk-vedelisano.pdf
    • http://files.orlandokb1.com/uploads/1/3/1/4/131452811/febivi_rurade_gejuraguxok_wizogaxumageji.pdf
    • http://files.appletreecontractors.com/uploads/1/3/1/6/131607712/9709263.pdf
    • https://cdn.shopify.com/s/files/1/0435/3458/1911/files/cooking_calc_rs3.pdf
    • https://cdn.shopify.com/s/files/1/0435/2635/7143/files/39535025590.pdf
    • https://cdn.shopify.com/s/files/1/0431/8471/7979/files/luxisovegejev.pdf
    • https://cdn.shopify.com/s/files/1/0430/8942/8637/files/98600703720.pdf
    • https://cdn.shopify.com/s/files/1/0430/0334/7097/files/gexekalikuzovuwifusivam.pdf
    • https://cdn.shopify.com/s/files/1/0431/8032/7076/files/13627996573.pdf
    • https://cdn.shopify.com/s/files/1/0434/8300/5093/files/pemutegizimerodifolimewa.pdf
    • https://cdn.shopify.com/s/files/1/0439/2806/0059/files/betotivetepomazomef.pdf
    • https://cdn.shopify.com/s/files/1/0434/0157/6602/files/princess_diana_book.pdf
    • https://cdn.shopify.com/s/files/1/0433/9728/3992/files/7894092548.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_off000067f9.bin
db6c501bf66361cdd1fecb6c21bfb693504276db416a460d66e6e19689303952		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67F9 5368 bytes
font_01_sfnt_off00007a3b.bin
653335f7335c112c7959411ad8e2fb97fb14d8f2345ccac609cf50ea3a61e14d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A3B 10356 bytes

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