Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8c4f10afea1f576…

MALICIOUS

PDF

73.3 KB Created: 2020-07-31 08:43:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4131e849575044f8a70664ef68e3fa45 SHA-1: e96602e9b9ea2b26afb174cee3359907f284cc01 SHA-256: f8c4f10afea1f576eb01a94a6cedf7d2de860231e469abdcd58d6d95147dd5c9
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, appears to be a lure for a book title, suggesting a phishing or scam attempt. The presence of a malicious redirector URL indicates an attempt to lead the user to a harmful site.

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=princess+diaries+book+1+pdf
    • http://files.crafted-by-yaime.com/uploads/1/3/0/8/130874148/gavunegusolix.pdf
    • http://files.artronshop.com/uploads/1/3/0/8/130814121/6732610.pdf
    • http://files.albemarleallotments.org.uk/uploads/1/3/1/6/131606819/2b7c9.pdf
    • http://files.pinalashess.shop/uploads/1/3/0/7/130775750/jevamuxepafo.pdf
    • https://cdn.shopify.com/s/files/1/0435/5942/0063/files/sajetulukagidiv.pdf
    • https://cdn.shopify.com/s/files/1/0432/5661/0979/files/91886733425.pdf
    • https://cdn.shopify.com/s/files/1/0433/0982/6213/files/xojevibufukavatobi.pdf
    • https://cdn.shopify.com/s/files/1/0429/5373/6348/files/43594195742.pdf
    • https://cdn.shopify.com/s/files/1/0430/9748/9561/files/viviroxutog.pdf
    • https://cdn.shopify.com/s/files/1/0430/5115/5618/files/kixazonol.pdf
    • https://cdn.shopify.com/s/files/1/0437/0500/8293/files/94416162211.pdf
    • https://cdn.shopify.com/s/files/1/0434/2520/2325/files/jabezitejetajuj.pdf
    • https://cdn.shopify.com/s/files/1/0435/3222/2615/files/xibofifavuxolatovanelumaw.pdf
    • https://cdn.shopify.com/s/files/1/0437/4754/1146/files/85961478662.pdf
    • https://cdn.shopify.com/s/files/1/0432/9177/1046/files/dasirat.pdf
    • https://cdn.shopify.com/s/files/1/0434/0760/5923/files/pirolelonisa.pdf
    • https://cdn.shopify.com/s/files/1/0432/8580/7268/files/43878590663.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_off0000e390.bin
e02d6aa6dec606c3e0e1792bc567b11002ee72171a65986348698851991edf41		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE390 5080 bytes
font_01_sfnt_off0000f4ca.bin
d599ae1820bfe9555d414e1589024edea573656884518277dd711ace26e4af80		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF4CA 10156 bytes

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