Malicious PDF — malware analysis report

Static analysis result for SHA-256 912fd34b986d2ad5…

MALICIOUS

PDF

35.4 KB Created: 2020-08-03 12:46:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 733fea6f074fc53ed75bf9d79893b289 SHA-1: 2ae68d43d12691a21700a0b3093c757d44c139c1 SHA-256: 912fd34b986d2ad5897b9a36fb40f6968b93c3d786db091e7d188de0abbf869e
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, including one pointing to a known malicious redirector at 'https://ttraff.com/pify?keyword=digital+cinematography+david+stump+pdf+free+download'. The document body and heuristics indicate a lure to download a PDF, likely to redirect the user to malicious content. The presence of numerous links to Shopify domains suggests an attempt to disguise the malicious redirector among seemingly benign 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=digital+cinematography+david+stump+pdf+free+download
    • http://files.pinehavenlamas.com/uploads/1/3/1/8/131857465/8545ef7.pdf
    • http://files.thearcsusquehanna.org/uploads/1/3/0/9/130969002/3172501.pdf
    • http://files.southerngrowler.com/uploads/1/3/1/3/131398334/3461871.pdf
    • http://files.pirtekkzn.com/uploads/1/3/1/8/131855981/sigumunaganav-komazeleloxugus-zuzugis-vujarolipa.pdf
    • https://cdn.shopify.com/s/files/1/0430/9496/6436/files/belilaxelamo.pdf
    • https://cdn.shopify.com/s/files/1/0429/2512/9891/files/koniwewelokuma.pdf
    • https://cdn.shopify.com/s/files/1/0431/9775/9643/files/31461779101.pdf
    • https://cdn.shopify.com/s/files/1/0429/2601/4620/files/dokipusubodegibap.pdf
    • https://cdn.shopify.com/s/files/1/0436/3495/0304/files/omfo_magic_mamaliga.pdf
    • https://cdn.shopify.com/s/files/1/0434/3123/1655/files/kumoresenogadikexip.pdf
    • https://cdn.shopify.com/s/files/1/0429/9502/4033/files/jinaxapesufo.pdf
    • https://cdn.shopify.com/s/files/1/0439/4532/8808/files/23064187751.pdf
    • https://cdn.shopify.com/s/files/1/0428/1021/2518/files/matavasolafitokususazamot.pdf
    • https://cdn.shopify.com/s/files/1/0430/7773/0455/files/wokijamuderuxupazolopedi.pdf
    • https://cdn.shopify.com/s/files/1/0432/6647/4139/files/33438444701.pdf
    • https://cdn.shopify.com/s/files/1/0432/9255/7462/files/1784659756.pdf
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/lorikimasugotuk.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_off00004998.bin
b037a71c78b04ece2e9df4a35f45b0c7fb9b8a190e4a58ff626b14e1979cb197		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4998 5824 bytes
font_01_sfnt_off00005d5d.bin
3850e2a6daeb0a8263fc0a2a63f544c6a25ff8cb8aae1c91e2569d5782e21b9b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D5D 9696 bytes

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