Malicious PDF — malware analysis report

Static analysis result for SHA-256 d01a0a3c85fd6341…

MALICIOUS

PDF

46.2 KB Created: 2020-07-30 01:15:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 839679ca71a2741c65b5735449cdfc23 SHA-1: e83b0822cec921a930434bd1c7786599863e7a52 SHA-256: d01a0a3c85fd634104a24a0f8a07e557e697aef6c8e2e5294488443e2f908f0d
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to a known malicious redirector. Additionally, PDF_SEO_LINK_FARM indicates the document is part of a link farm, likely for SEO manipulation or to host multiple malicious links. The document body, though heavily obfuscated, suggests a lure related to 'free printable world map pdf'. 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.ru/pify?keyword=free+printable+world+map+pdf
    • http://files.cruisencocktails.com/uploads/1/3/2/7/132710627/e22865b29a2df91.pdf
    • http://files.bellabugphotos.com/uploads/1/3/1/4/131406781/8580f0c48a.pdf
    • http://files.averageguyreviews.com/uploads/1/3/2/7/132710780/3613293.pdf
    • http://files.romyservando.com/uploads/1/3/1/4/131453208/walefukuvapurorida.pdf
    • https://cdn.shopify.com/s/files/1/0430/9463/8749/files/bubivetobenajulesanirujin.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/19085525902.pdf
    • https://cdn.shopify.com/s/files/1/0428/2921/7958/files/xepini.pdf
    • https://cdn.shopify.com/s/files/1/0434/3093/6733/files/bugaseja.pdf
    • https://cdn.shopify.com/s/files/1/0439/5306/2046/files/pafavapugirewaminilaxu.pdf
    • https://cdn.shopify.com/s/files/1/0438/9522/6523/files/limoxipakazibegirupat.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nakawefefaf.pdf
    • https://cdn.shopify.com/s/files/1/0433/8126/0440/files/sejodulezobobizo.pdf
    • https://cdn.shopify.com/s/files/1/0431/5093/4173/files/52476925742.pdf
    • https://cdn.shopify.com/s/files/1/0430/1655/2605/files/wolusoxubazifawo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51994241049.pdf
    • https://cdn.shopify.com/s/files/1/0429/7159/4911/files/98328207493.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_off000077d6.bin
0e89510695adbcfa0d68cf99615da8cfcaf7256643799f2f001099908c1733b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77D6 4984 bytes
font_01_sfnt_off000088b1.bin
f70f4a96c3983d8b53cad792f3d18850ecb227c0a31e4fd5dc767985ced51506		 pdf-font-stream PDF embedded font (sfnt) at offset 0x88B1 10204 bytes

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