Malicious PDF — malware analysis report

Static analysis result for SHA-256 a26a3ea346d28807…

MALICIOUS

PDF

49.1 KB Created: 2020-08-29 16:04:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 889bb505025b432ed7a9a2316394d79a SHA-1: c297042cb1f013634d928f4866b142fd117422f1 SHA-256: a26a3ea346d288076796687d70b33b03f6f14c6e0fdbadb1b1dcb092dbe148d6
120 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, with one specifically identified as a malicious redirector. This redirector is designed to lure users to a page related to 'earth awakens epub', likely a phishing or scam pretext. The presence of numerous links suggests a link farm or SEO poisoning technique to distribute malicious content. No scripts were extracted, but the embedded malicious URL is the primary indicator of compromise.

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/wix?keyword=earth+awakens+epub
    • https://static.usrfiles.com/ugd/b8c837_b92c904487cc4e9981450bb482de60a9.pdf
    • https://static.usrfiles.com/ugd/921909_fa072ed25a77458aab0b446f5cf66013.pdf
    • https://static.usrfiles.com/ugd/b8c837_9a1b85329e56487085f77b286c4c3d0d.pdf
    • https://static.usrfiles.com/ugd/b8c837_a3b7f89ebf664e7781ebe8447bac87b9.pdf
    • https://cdn.shopify.com/s/files/1/0432/8692/1376/files/25071328628.pdf
    • https://cdn.shopify.com/s/files/1/0439/6944/6046/files/dawoponoregakilivil.pdf
    • https://cdn.shopify.com/s/files/1/0431/5512/8477/files/dobuve.pdf
    • https://cdn.shopify.com/s/files/1/0432/3262/4797/files/unfollow-_text._click.pdf
    • https://cdn.shopify.com/s/files/1/0432/3488/5796/files/vemiduwaradinubeved.pdf
    • https://cdn.shopify.com/s/files/1/0433/2794/6904/files/autobiography_of_a_yogi_in_malayalam.pdf
    • https://cdn.shopify.com/s/files/1/0429/1526/6713/files/juripofakevudaxu.pdf
    • https://cdn.shopify.com/s/files/1/0429/0691/0887/files/61999977862.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_off00008315.bin
52ab9ded975bfd30856da7982cf70e676446c0df96ae0a157e2aae89a82a5c51		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8315 5128 bytes
font_01_sfnt_off0000948e.bin
46e9b33219c20e016224ecd8c27c0d4e55f74022096e646b95c5262341c4d932		 pdf-font-stream PDF embedded font (sfnt) at offset 0x948E 10308 bytes

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