Malicious PDF — malware analysis report

Static analysis result for SHA-256 df1800ce17ca8145…

MALICIOUS

PDF

106.5 KB Created: 2020-08-02 10:57:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ced98e3b2c918abe31767b9c068a7d6 SHA-1: 5c9fb919408f742741b96634b97096acd858c5f9 SHA-256: df1800ce17ca8145803947a273e1b63bda51e23ae91cbc0bdf467185415223da
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, which is likely used to obscure the final destination. The document body, though heavily obfuscated, contains the same URL and keywords suggesting a lure. The presence of a link farm heuristic further indicates an attempt to drive traffic to external sites, likely for malicious purposes.

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/pify?keyword=pokemon+xd+action+replay+codes
    • http://files.jeanrascher.com/uploads/1/3/0/7/130739625/b1fcc8b385.pdf
    • http://files.aspectsandangles.com/uploads/1/3/1/4/131437615/wajanas-nuvik.pdf
    • http://files.charlottelakits.com/uploads/1/3/0/7/130775331/9604064.pdf
    • https://cdn.shopify.com/s/files/1/0428/7230/7875/files/50146498818.pdf
    • https://cdn.shopify.com/s/files/1/0430/8929/7568/files/79874140370.pdf
    • https://cdn.shopify.com/s/files/1/0437/8106/2805/files/17444429854.pdf
    • https://cdn.shopify.com/s/files/1/0435/7164/2527/files/7114195416.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/31968244380.pdf
    • https://cdn.shopify.com/s/files/1/0431/5791/3749/files/8157238668.pdf
    • https://cdn.shopify.com/s/files/1/0429/9476/1877/files/zavobi.pdf
    • https://cdn.shopify.com/s/files/1/0431/5843/8056/files/nisimumixiwoxi.pdf
    • https://cdn.shopify.com/s/files/1/0429/4190/7100/files/78016326436.pdf
    • https://cdn.shopify.com/s/files/1/0433/7732/8278/files/rodajosuwokuvimivadu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/poxusulijupidokubeb.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_off0001556b.bin
c8bd2f751f6b4b8f5706a12433dae65f5ed714aade669607c6aedd13e6b9fcad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1556B 5452 bytes
font_01_sfnt_off000167f1.bin
3852fcc1a40ce6724ef58fb013a9e04f44bf660e1c5ff014916f260f396efc1e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x167F1 16372 bytes

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