Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7882e9e063c4078…

MALICIOUS

PDF

71.3 KB Created: 2020-08-11 05:32:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 75a2979de2efe58154629fcc8f5cbec8 SHA-1: 31756d55cd5d97cb7e10c160fc4cbb93e1d8a502 SHA-256: b7882e9e063c4078181ae5881453c3d91096477caa442a12a318c1df29936a6b
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains numerous external links, many pointing to Shopify domains, but one critical link redirects to a known malicious infrastructure at 'ttraff.cc'. This suggests a link farm or redirection tactic to obscure the final malicious destination. The document body, though heavily obfuscated, contains the same URL, reinforcing its role as a lure. The primary attack pattern involves tricking the user into clicking a link that leads to further malicious activity.

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.cc/pify?keyword=activated+carbon+as+adsorbent+pdf
    • http://files.cateringandcreations.net/uploads/1/3/0/8/130814513/9295549.pdf
    • http://files.mylaraonline.com/uploads/1/3/1/3/131398504/vewenuxavurevazo.pdf
    • http://poromixut.adrianprovost.com/uploads/1/3/0/7/130739457/2100254.pdf
    • http://files.michiganhoundassociation.com/uploads/1/3/2/3/132303373/30dc589596c2.pdf
    • http://files.vintageedinburgh.com/uploads/1/3/0/7/130739490/debere-dagugo.pdf
    • https://cdn.shopify.com/s/files/1/0437/5399/6446/files/cisco_press_ccie_routing_and_switching.pdf
    • https://cdn.shopify.com/s/files/1/0436/9865/1288/files/lemesi.pdf
    • https://cdn.shopify.com/s/files/1/0430/6989/8914/files/zejumogalor.pdf
    • https://cdn.shopify.com/s/files/1/0433/5920/7579/files/29823712316.pdf
    • https://cdn.shopify.com/s/files/1/0436/2852/7776/files/veninolojulogosexijegir.pdf
    • https://cdn.shopify.com/s/files/1/0435/1534/7103/files/vuponapifuviponuwufisir.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34292265756.pdf
    • https://cdn.shopify.com/s/files/1/0435/3146/8951/files/windows_8_product_key.pdf
    • https://cdn.shopify.com/s/files/1/0431/1141/5962/files/bhagavad_gita_jack_hawley_espaol.pdf
    • https://cdn.shopify.com/s/files/1/0449/4213/1355/files/minolta_srt_102.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_off0000d98d.bin
ba7aeb6a27f8c0f2e03a61f5de44354dc2d88ab0fb265abb6d4fe0b217e66dc0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD98D 5304 bytes
font_01_sfnt_off0000eb9d.bin
3b8d77c799a44ae15e5e28e1ef95086a9ac3cf29c85808420e748b24e2501578		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEB9D 10740 bytes

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