Malicious PDF — malware analysis report

Static analysis result for SHA-256 f97ac968d4fdc0d4…

MALICIOUS

PDF

39.3 KB Created: 2020-08-30 03:52:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dd166e834ce78fb961833bb329f54ca9 SHA-1: e692cc2d8e3ffd577099af60c37d53887f8f2be3 SHA-256: f97ac968d4fdc0d4b59be06d7f9941f6fb4028f0469e8d828af13c1cac42310e
162 Risk Score

Malware Insights

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

The PDF file contains a link to a redirector URL, identified as malicious. The document body, though heavily obfuscated, contains text referencing 'Minecraft clay soldiers mod 1.14.3' and the malicious URL, suggesting a lure to trick users into clicking the link. The heuristic 'SE_CLICKFIX' indicates the document may also instruct users to run commands, further supporting a social engineering attack pattern. No scripts were extracted from this sample.

Heuristics 4

  • 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.
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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/wix?keyword=minecraft+clay+soldiers+mod+1.14.3
    • https://cdn.shopify.com/s/files/1/0439/4981/8024/files/3920139116.pdf
    • https://cdn.shopify.com/s/files/1/0433/0727/0312/files/cough_treatment_guidelines_2018.pdf
    • https://cdn.shopify.com/s/files/1/0431/6010/9210/files/tunajujokesewuxire.pdf
    • https://cdn.shopify.com/s/files/1/0434/4135/6950/files/wuvasu.pdf
    • https://cdn.shopify.com/s/files/1/0432/6001/8852/files/architecture_paris_guide.pdf
    • https://static.usrfiles.com/ugd/b8c837_8133846a74a347bb80fdd642ef36c006.pdf
    • https://static.usrfiles.com/ugd/0049ca_63b9194ce5cd42fa91070cf499578494.pdf
    • https://static.usrfiles.com/ugd/b8c837_6821137c406144e4a16a979c4c63d974.pdf
    • https://static.usrfiles.com/ugd/b8c837_e464a8a67a07489fa31bc7d8cdac3a0f.pdf
    • https://static.usrfiles.com/ugd/ab0441_9c047cd246104f1a9ed6527ceff5c3ff.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_off00005a63.bin
0112d1bc8311651940041df1a72491b827d47caa468b30118e7c63e9483e1013		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A63 5608 bytes
font_01_sfnt_off00006d73.bin
4394f9f29f6ae1bee31843380798896133bcb4a0176d34e1c4043ee09a59830b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D73 10336 bytes

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