Malicious PDF — malware analysis report

Static analysis result for SHA-256 807c0e830b415a10…

MALICIOUS

PDF

35.0 KB Created: 2020-09-09 14:47:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 88701d3dfe5816070476630e10b7b2c6 SHA-1: a16b0ce127396fe0af2223ee2c50cc1fc5cb0a4d SHA-256: 807c0e830b415a103825bb512f6aa7cb866d84797e03fd18a8b8b021cfe77b03
120 Risk Score

Malware Insights

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

The PDF file contains a link farm and a specific malicious redirector URL, indicating an attempt to direct users to harmful content. The document body, though heavily obfuscated, contains text suggesting a lure related to 'Hum alt balaji full episodes' and the malicious URL. The presence of numerous embedded links points towards a SEO-based lure to drive traffic to malicious sites.

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.me/wix?keyword=hum+alt+balaji+full+episodes
    • https://static.usrfiles.com/ugd/191a6d_17ca03616424465d87a64a6b6bd062ca.pdf
    • https://static.usrfiles.com/ugd/b8c837_cbafac0e7d174d3388260a72d41f770f.pdf
    • https://static.usrfiles.com/ugd/c20ea7_751377f060954c31b850ea53ff201c4b.pdf
    • https://static.usrfiles.com/ugd/6df952_e415db0a54774a0491b90e6bf0cc2598.pdf
    • https://cdn.shopify.com/s/files/1/0438/6196/7013/files/tidaporesaziki.pdf
    • https://cdn.shopify.com/s/files/1/0433/1431/5422/files/lawinuv.pdf
    • https://cdn.shopify.com/s/files/1/0435/1747/7019/files/74976847974.pdf
    • https://cdn.shopify.com/s/files/1/0435/9972/4702/files/docker_alpine_remove_apk_cache.pdf
    • https://cdn.shopify.com/s/files/1/0433/5638/9528/files/luzerixoji.pdf
    • https://cdn.shopify.com/s/files/1/0431/2721/0144/files/22456935477.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_off00004b76.bin
84108c9b56310ebc43a11ae2adaab2ae17b3d8261133a2eecac410482be50239		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4B76 5268 bytes
font_01_sfnt_off00005d49.bin
0135509b0e39ee1a3b47c2575e565c9186f129fc8ad007565aacfeaa2e2babde		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D49 10076 bytes

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