Malicious PDF — malware analysis report

Static analysis result for SHA-256 286b427a3e4322a8…

MALICIOUS

PDF

47.7 KB Created: 2020-07-28 14:43:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5f2f9eef94fa14a7b357c54cb1c8d912 SHA-1: 50e6efafe8488441d41c3eac3b59199c99aedba5 SHA-256: 286b427a3e4322a8eb0b22579d5d337796edf9e97fa1723899500171ff4e80ac
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.com, which is designed to lure users with fake software offers. The document body, though heavily obfuscated, contains text related to 'Adobe photoshop lightroom pro android', reinforcing the lure. The PDF also hosts a large number of external links, many pointing to Shopify domains, likely as part of an SEO-based link farm to improve search engine visibility for the malicious content.

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=adobe+photoshop+lightroom+pro+android
    • http://files.coxevolab.org/uploads/1/3/1/8/131871484/xolepo.pdf
    • http://files.hannahmassagetherapy.com/uploads/1/3/0/7/130776058/kozuzetako-fegeledado.pdf
    • http://files.brazosmetaldesigns.com/uploads/1/3/1/4/131437410/lomipixajovibufu.pdf
    • http://files.annablossom.com/uploads/1/3/0/7/130740618/de469de6.pdf
    • https://cdn.shopify.com/s/files/1/0435/2868/3674/files/6880077959.pdf
    • https://cdn.shopify.com/s/files/1/0428/7853/3799/files/xoleponorovuvixofisejamuj.pdf
    • https://cdn.shopify.com/s/files/1/0432/9907/8299/files/zikoxafam.pdf
    • https://cdn.shopify.com/s/files/1/0428/2236/9446/files/rarelur.pdf
    • https://cdn.shopify.com/s/files/1/0430/2848/0157/files/78493935526.pdf
    • https://cdn.shopify.com/s/files/1/0431/4421/6730/files/nejonazurepulafusazujon.pdf
    • https://cdn.shopify.com/s/files/1/0438/8726/3899/files/tavajufewapudedu.pdf
    • https://cdn.shopify.com/s/files/1/0429/3401/0015/files/gotikoxivaxadugurebelasor.pdf
    • https://cdn.shopify.com/s/files/1/0438/3798/0834/files/xuxogorakilatel.pdf
    • https://cdn.shopify.com/s/files/1/0439/2982/9544/files/vatudix.pdf
    • https://cdn.shopify.com/s/files/1/0435/3212/4312/files/texatuvifexoxalav.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_off00007c7c.bin
f83c09915e61d6fcfee75d495bad1d2e977eb282390b1cbfb479d58369816cba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C7C 5292 bytes
font_01_sfnt_off00008e45.bin
348ce3b9dc783fb372ff1654ec68f6c501b1d225f1c633b6c282a7547be8341d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E45 10216 bytes

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