Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d9482ad6dcf6fce…

MALICIOUS

PDF

44.3 KB Created: 2020-08-11 22:57:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e7591231e3234b6192fcdf6325a1551 SHA-1: 8342baa0840375d6c80a6e17cbe59f558e80d196 SHA-256: 2d9482ad6dcf6fce6714575b2888c1a5c25ad3137667f9b054b8aabc226b6cd6
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to the presence of a large number of external links, indicative of a link farm or SEO manipulation tactic. One critical heuristic flagged a link to a known malicious redirector infrastructure, suggesting an attempt to lead users to harmful content. The document body, though heavily obfuscated, contains a URL that appears to be part of this redirection scheme. No scripts were extracted from this sample.

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.cc/pify?keyword=hand+operated+briquetting+machine+pdf
    • http://jukide.babyblueeyesragdolls.com/uploads/1/3/0/9/130969744/1a8fc6ccd4.pdf
    • http://wotatija.wiscopt.com/uploads/1/3/2/3/132303382/9846ea6b2768.pdf
    • http://files.cphsvirtualmuseum.com/uploads/1/3/2/6/132681885/kizafetabu.pdf
    • http://files.filabrasileiroassn.com/uploads/1/3/0/9/130969032/898669.pdf
    • http://files.prettycardsandmore.com/uploads/1/3/0/9/130969206/niridonajawom.pdf
    • https://cdn.shopify.com/s/files/1/0430/5158/1597/files/konusakidisadud.pdf
    • https://cdn.shopify.com/s/files/1/0432/8439/8244/files/92443996186.pdf
    • https://cdn.shopify.com/s/files/1/0437/9849/5389/files/factorio_yellow_science.pdf
    • https://cdn.shopify.com/s/files/1/0429/3391/1705/files/9853837673.pdf
    • https://cdn.shopify.com/s/files/1/0435/5509/4679/files/5e_wild_magic_table.pdf
    • https://cdn.shopify.com/s/files/1/0440/1148/7397/files/list_of_most_valuable_playboy_magazines.pdf
    • https://cdn.shopify.com/s/files/1/0432/7093/0600/files/repolafexugasefune.pdf
    • https://cdn.shopify.com/s/files/1/0437/3191/0821/files/36236708078.pdf
    • https://cdn.shopify.com/s/files/1/0433/0048/7332/files/fokajusafun.pdf
    • https://cdn.shopify.com/s/files/1/0432/9072/2469/files/23601341822.pdf
    • https://cdn.shopify.com/s/files/1/0431/8468/5224/files/vonawunegiwibavurelozap.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_off00006c52.bin
2125d5e3e3d22e90e519ff314200bf7c7afe38558902286db136431d8fe5fa2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C52 5584 bytes
font_01_sfnt_off00007f20.bin
a15508da5f43db7e59d6902feca8fcef5eb787d3b436a0e1e407666b71e27d03		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F20 10908 bytes

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