Malicious PDF — malware analysis report

Static analysis result for SHA-256 db91046b28b0007b…

MALICIOUS

PDF

54.6 KB Created: 2020-08-21 03:39:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4118732a7206fd56fc0817d301658ef8 SHA-1: 41a82f6035584e72b314c2cf8fb4d379e6df2abf SHA-256: db91046b28b0007bea2205fd88e761fbd2c24324aa42f37ba03a537ac9528498
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link that redirects to a known malicious domain, disguised as an application form. It also contains a large number of embedded links, many pointing to Shopify, suggesting a link farm for SEO manipulation or to host further malicious content. The document body contains garbled text but includes the target URL and a reference to wkhtmltopdf, indicating it was likely generated programmatically.

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.com/pify?keyword=rto+pune+auto+rickshaw+permit+application+form
    • http://files.creekwoodmschoir.com/uploads/1/3/1/8/131858661/70e389f8873b1.pdf
    • http://files.adventureannualpass.com/uploads/1/3/0/8/130814286/7d0c7174bf.pdf
    • https://cdn.shopify.com/s/files/1/0437/1503/5290/files/pikeru.pdf
    • https://cdn.shopify.com/s/files/1/0430/8438/2357/files/mezefepojetosura.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69440205977.pdf
    • https://cdn.shopify.com/s/files/1/0432/2213/9041/files/roviziximiji.pdf
    • https://cdn.shopify.com/s/files/1/0433/1631/4277/files/1998173539.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/telisupuf.pdf
    • https://cdn.shopify.com/s/files/1/0433/4950/8246/files/44774597587.pdf
    • https://cdn.shopify.com/s/files/1/0430/7927/0554/files/2843809381.pdf
    • https://cdn.shopify.com/s/files/1/0436/4835/2406/files/51144074896.pdf
    • https://cdn.shopify.com/s/files/1/0431/2950/3901/files/brche_erklrung.pdf
    • https://cdn.shopify.com/s/files/1/0451/2271/5801/files/67730198225.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006715.bin
94e88b017e864b50fee1a4d50e8b9e16bc12d5a9085ccd3805533c077d79ba6e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6715 5416 bytes
font_01_sfnt_off0000796e.bin
16b1ce5741c8257a3d2185e15de6a47d674e723354da79c195a508679dd01615		 pdf-font-stream PDF embedded font (sfnt) at offset 0x796E 12436 bytes
font_02_sfnt_off0000a22b.bin
c41fc46809d2260d2d1a821cef6bb00dae560fdbad380da94a93f29d012df54e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA22B 16164 bytes
font_03_sfnt_off0000b77c.bin
6bb2548f9be18caf1d56cef0c80208b48ab67468674c722435d0896ac41ed157		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB77C 6096 bytes

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