Malicious PDF — malware analysis report

Static analysis result for SHA-256 e960fb01c11013df…

MALICIOUS

PDF

44.9 KB Created: 2020-09-02 12:56:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 675353dd1a0f1a60998bf7d7a7f944ba SHA-1: 63a0f51ae54fd76ea522c7b1cead6873157f4a61 SHA-256: e960fb01c11013dfe1602b044757133ad1833736bbbaa860725339c1185bc68d
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.link/wix?keyword=fire+reports+nsw'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the text 'Fire reports nsw' and the malicious URL, suggesting a lure to trick users into clicking the link. 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.link/wix?keyword=fire+reports+nsw
    • https://cdn.shopify.com/s/files/1/0429/5032/8486/files/bawigazokapuvimumunipinu.pdf
    • https://cdn.shopify.com/s/files/1/0434/8094/0710/files/razovuwixusetutibox.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/29121996303.pdf
    • https://cdn.shopify.com/s/files/1/0441/2263/6440/files/alkanes_and_cycloalkanes.pdf
    • https://cdn.shopify.com/s/files/1/0448/1508/9825/files/applications_of_derivatives_class_12_ncert_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mekokagowofulagifofid.pdf
    • https://cdn.shopify.com/s/files/1/0434/0183/8744/files/niniwunavusuxepasixofese.pdf
    • https://static.usrfiles.com/ugd/9dda13_97b4935c5c484ea88d08979b3e5a887a.pdf
    • https://static.usrfiles.com/ugd/3bf302_1d2351e0118343eeb9db1c185fbb589a.pdf
    • https://static.usrfiles.com/ugd/24deb6_9ac3ad1a592541488d6836dee66179a4.pdf
    • https://static.usrfiles.com/ugd/ac51ce_78326f3cd7744105ae1ed15925f368ef.pdf
    • https://static.usrfiles.com/ugd/8de238_55e81f69dfab4c75a6f4c7beb094aa35.pdf
    • https://static.usrfiles.com/ugd/d01287_84fd521e24b045808fc014fc97defbb2.pdf
    • https://static.usrfiles.com/ugd/b8c837_b791972170c8475b940e8e287c149e54.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_off00007489.bin
039d13089e0d51a1eba9f1b9ba6568cdd135765ee52db539923e453721dfa771		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7489 4620 bytes
font_01_sfnt_off00008463.bin
b5d4b7caa2e3c8a8313ce3c160d94819280b375a9050264b28efa021ebf10183		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8463 10260 bytes

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